pax_global_header00006660000000000000000000000064142417747450014531gustar00rootroot0000000000000052 comment=bea2215b0352e77c703a02122833a828b2a5f810 ocaml-faad-0.5.1/000077500000000000000000000000001424177474500135205ustar00rootroot00000000000000ocaml-faad-0.5.1/.gitignore000066400000000000000000000000631424177474500155070ustar00rootroot00000000000000*~ _build *.byte *.native _tests .merlin *.install ocaml-faad-0.5.1/.ocamlformat000066400000000000000000000003371424177474500160300ustar00rootroot00000000000000version=0.19.0 profile = conventional break-separators = after space-around-lists = false doc-comments = before match-indent = 2 match-indent-nested = always parens-ite exp-grouping = preserve module-item-spacing = compact ocaml-faad-0.5.1/CHANGES000066400000000000000000000026141424177474500145160ustar00rootroot000000000000000.5.1 (20-05-2022) ===== * Switch to `pkg-config` for library detection. * Cleanup warnings 0.5.0 (07-10-2020) ===== * Convert to Unix.read style API. * Converted to dune for building. 0.4.0 (18-08-2018) ===== * Updated mp4ff code, removed drms code (consistent with VLC) * Cleanup GC-related code. 0.3.3 (03-08-2015) ===== * Fix freeze when trying to parse unknown atoms. 0.3.2 (17-02-2013) ===== * Fix memory leak at init. * Ensure that decoding did not return NULL. * Updated examples. 0.3.1 (19-19-2012) ===== * Correctly initialize a buffer for mp4ff_read_sample to avoid a segfault in ocaml_faad_mp4_decode (LS-626). * Decoder example is now able to decode mp4 as well as pure aac. * Distribute the example. 0.3.0 (30-06-2011) ===== * Added seeking functionalities. 0.2.0 (12-02-2011) ===== * Registered close method for the finalizer. * Added a static copy of mp4ff. 0.1.3 (11-10-2009) ===== * Added support for --enable-debugging configure option * Added NO_CUSTOM to build in standard mode. * Added prefix to main compilation variables if passed to configure. * Makefile now honnors LIBDIRS variable for linking against libraries located in other places than then standard ones. 0.1.2 (17-02-2009) ===== * Added license headers to each source code file 0.1.1 (15-04-2008) ===== * More portable invokation of make * Now installs also .cmx file 0.1.0 (17-10-2007) ===== * Initial release ocaml-faad-0.5.1/COPYING000066400000000000000000000431311424177474500145550ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. 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It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. ocaml-faad-0.5.1/README.md000066400000000000000000000012571424177474500150040ustar00rootroot00000000000000# ocaml-faad This package contains an O'Caml interface for the AAC audio decoder, otherwise known as libfaad. Please read the COPYING file before using this software. ## Prerequisites: - ocaml >= 3.0.6 (haven't tried earlier versions) - libfaad >= 2.5 (haven't tried earlier versions) - findlib >= 0.8.1 (haven't tried earlier versions) - dune >= 2.0 ## Compilation: ```sh $ dune build ``` This should build both the native and the byte-code version of the extension library. ## Installation: Via `opam`: ```sh $ opam install faad ``` Via `dune` (for developers): ```sh $ dune install ``` This should install the library file (using ocamlfind) in the appropriate place. ocaml-faad-0.5.1/dune-project000066400000000000000000000007341424177474500160460ustar00rootroot00000000000000(lang dune 2.8) (version 0.5.1) (name faad) (source (github savonet/ocaml-faad)) (license GPL-2.0) (authors "The Savonet Team ") (maintainers "Romain Beauxis ") (generate_opam_files true) (use_standard_c_and_cxx_flags false) (package (name faad) (synopsis "Bindings for the faad library which provides functions for decoding AAC audio files") (depends conf-faad conf-pkg-config dune dune-configurator) ) ocaml-faad-0.5.1/example/000077500000000000000000000000001424177474500151535ustar00rootroot00000000000000ocaml-faad-0.5.1/example/aac2wav.ml000066400000000000000000000122641424177474500170360ustar00rootroot00000000000000(* * Copyright 2009 Savonet team * * This file is part of OCaml-Vorbis. * * OCaml-Vorbis is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * OCaml-Vorbis is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with OCaml-Vorbis; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *) (** * An aac to wav converter using ocaml-aac. * * @author Samuel Mimram *) let bufsize = 16 * 1024 let src = ref "" let dst = ref "" let output_int chan n = output_char chan (char_of_int ((n lsr 0) land 0xff)); output_char chan (char_of_int ((n lsr 8) land 0xff)); output_char chan (char_of_int ((n lsr 16) land 0xff)); output_char chan (char_of_int ((n lsr 24) land 0xff)) let output_short chan n = output_char chan (char_of_int ((n lsr 0) land 0xff)); output_char chan (char_of_int ((n lsr 8) land 0xff)) let usage = "usage: aac2wav [options] source destination" let () = Arg.parse [] (let pnum = ref (-1) in fun s -> incr pnum; match !pnum with | 0 -> src := s | 1 -> dst := s | _ -> Printf.eprintf "Error: too many arguments\n"; exit 1) usage; if !src = "" || !dst = "" then ( Printf.printf "%s\n" usage; exit 1); let buflen = 1024 in let buf = Bytes.create buflen in let f = Unix.openfile !src [Unix.O_RDONLY] 0o400 in let dec = Faad.create () in let outbuf = ref "" in let fill_out channels a = let tmplen = Array.length a.(0) in let tmp = Bytes.create (tmplen * channels * 2) in for i = 0 to tmplen - 1 do for c = 0 to channels - 1 do let n = a.(c).(i) *. 32767. in let n = int_of_float n in Bytes.set tmp (2 * ((i * channels) + c)) (char_of_int (n land 0xff)); Bytes.set tmp ((2 * ((i * channels) + c)) + 1) (char_of_int ((n lsr 8) land 0xff)) done done; outbuf := !outbuf ^ Bytes.to_string tmp in let decode_mp4 () = let mp4 = Faad.Mp4.openfile_fd f in let track = Faad.Mp4.find_aac_track mp4 in let samplerate, channels = Faad.Mp4.init mp4 dec track in let fill_out = fill_out channels in let samples = Faad.Mp4.samples mp4 track in Printf.printf "Input file: %d channels at %d Hz.\n%!" channels samplerate; Array.iter (fun (i, t) -> Printf.printf "%s: %s\n%!" i t) (Faad.Mp4.metadata mp4); Printf.printf "%d tracks (AAC track: %d).\n%!" (Faad.Mp4.tracks mp4) track; Printf.printf "%d samples.\n" samples; for i = 0 to samples - 1 do Printf.printf "Decoding sample: %d / %d (%d bytes).\r%!" i samples (String.length !outbuf); let a = Faad.Mp4.decode mp4 track i dec in fill_out a done; Printf.printf "\n%!"; (channels, samplerate, !outbuf) in let decode_aac () = let len = Unix.read f buf 0 buflen in let offset, samplerate, channels = Faad.init dec buf 0 len in let buflen = Faad.min_bytes_per_channel * channels in let consumed = ref buflen in let aacbuf = Bytes.create buflen in let fill_in () = Bytes.blit aacbuf !consumed aacbuf 0 (buflen - !consumed); while !consumed <> 0 do let n = Unix.read f aacbuf (buflen - !consumed) !consumed in if n = 0 then raise End_of_file; consumed := !consumed - n done in let fill_out = fill_out channels in Printf.printf "Input file: %d channels at %d Hz.\n%!" channels samplerate; ignore (Unix.lseek f offset Unix.SEEK_SET); Printf.printf "Decoding AAC...\n%!"; try while true do fill_in (); if Bytes.get aacbuf 0 <> '\255' then failwith "Invalid data"; let c, a = Faad.decode dec aacbuf 0 buflen in consumed := c; fill_out a done; (channels, samplerate, !outbuf) with | End_of_file | Faad.Failed -> (channels, samplerate, !outbuf) | Faad.Error n as e -> Printf.printf "Faad error %d: %s\n%!" n (Faad.error_message n); raise e in let channels, samplerate, outbuf = if Filename.check_suffix !src ".aac" || Filename.check_suffix !src ".AAC" then decode_aac () else decode_mp4 () in (* Do the wav stuff. *) let datalen = String.length outbuf in let oc = open_out_bin !dst in output_string oc "RIFF"; output_int oc (4 + 24 + 8 + datalen); output_string oc "WAVE"; output_string oc "fmt "; output_int oc 16; output_short oc 1; (* WAVE_FORMAT_PCM *) output_short oc channels; (* channels *) output_int oc samplerate; (* freq *) output_int oc (samplerate * channels * 2); (* bytes / s *) output_short oc (channels * 2); (* block alignment *) output_short oc 16; (* bits per sample *) output_string oc "data"; output_int oc datalen; output_string oc outbuf; close_out oc; Gc.full_major () ocaml-faad-0.5.1/example/dune000066400000000000000000000000641424177474500160310ustar00rootroot00000000000000(executable (name aac2wav) (libraries unix faad)) ocaml-faad-0.5.1/faad.opam000066400000000000000000000014141424177474500152710ustar00rootroot00000000000000# This file is generated by dune, edit dune-project instead opam-version: "2.0" version: "0.5.1" synopsis: "Bindings for the faad library which provides functions for decoding AAC audio files" maintainer: ["Romain Beauxis "] authors: ["The Savonet Team "] license: "GPL-2.0" homepage: "https://github.com/savonet/ocaml-faad" bug-reports: "https://github.com/savonet/ocaml-faad/issues" depends: [ "conf-faad" "conf-pkg-config" "dune" {>= "2.8"} "dune-configurator" "odoc" {with-doc} ] build: [ ["dune" "subst"] {dev} [ "dune" "build" "-p" name "-j" jobs "@install" "@runtest" {with-test} "@doc" {with-doc} ] ] dev-repo: "git+https://github.com/savonet/ocaml-faad.git" ocaml-faad-0.5.1/src/000077500000000000000000000000001424177474500143075ustar00rootroot00000000000000ocaml-faad-0.5.1/src/config/000077500000000000000000000000001424177474500155545ustar00rootroot00000000000000ocaml-faad-0.5.1/src/config/discover.ml000066400000000000000000000011371424177474500177260ustar00rootroot00000000000000module C = Configurator.V1 let () = C.main ~name:"faad2-pkg-config" (fun c -> let default : C.Pkg_config.package_conf = { libs = ["-lfaad2"]; cflags = [] } in let conf = match C.Pkg_config.get c with | None -> default | Some pc -> ( match C.Pkg_config.query_expr_err pc ~package:"faad2" ~expr:"faad2" with | Error msg -> failwith msg | Ok deps -> deps) in C.Flags.write_sexp "c_flags.sexp" conf.cflags; C.Flags.write_sexp "c_library_flags.sexp" conf.libs) ocaml-faad-0.5.1/src/config/dune000066400000000000000000000000751424177474500164340ustar00rootroot00000000000000(executable (name discover) (libraries dune.configurator)) ocaml-faad-0.5.1/src/dune000066400000000000000000000006051424177474500151660ustar00rootroot00000000000000(library (name faad) (public_name faad) (synopsis "Ocaml bindings to libfaad") (foreign_stubs (language c) (names faad_stubs mp4atom mp4ff mp4meta mp4sample mp4tagupdate mp4util) (flags -DUSE_TAGGING (:include c_flags.sexp))) (c_library_flags (:include c_library_flags.sexp))) (rule (targets c_flags.sexp c_library_flags.sexp) (action (run ./config/discover.exe))) ocaml-faad-0.5.1/src/faad.ml000066400000000000000000000062071424177474500155410ustar00rootroot00000000000000(* * Copyright (C) 2003-2008 Samuel Mimram * (C) 2006-2010 The Savonet Team * * Ocaml-faad is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Ocaml-faad is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Ocaml-faad; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *) type t exception Error of int exception Failed external error_message : int -> string = "ocaml_faad_get_error_message" let () = Callback.register_exception "ocaml_faad_exn_error" (Error 0); Callback.register_exception "ocaml_faad_exn_failed" Failed external min_bytes_per_channel : unit -> int = "ocaml_faad_min_bytes_per_channel" let min_bytes_per_channel = min_bytes_per_channel () external create : unit -> t = "ocaml_faad_open" external init : t -> Bytes.t -> int -> int -> int * int * int = "ocaml_faad_init" external decode : t -> Bytes.t -> int -> int -> int * float array array = "ocaml_faad_decode" external post_sync_reset : t -> unit = "ocaml_faad_post_seek_reset" let find_frame buf = let i = ref 0 in let found = ref false in while !i < String.length buf - 1 && not !found do if buf.[!i] = '\255' then if int_of_char buf.[!i + 1] land 0xf6 = 0xf0 then found := true else incr i else incr i done; if !found then !i else raise Not_found module Mp4 = struct type decoder = t type t type track = int type sample = int type read = bytes -> int -> int -> int let is_mp4 s = assert (String.length s >= 8); s.[4] = 'f' && s.[5] = 't' && s.[6] = 'y' && s.[7] = 'p' external open_read : bool -> read -> (Bytes.t -> int) option -> (int -> int) option -> (unit -> int) option -> t = "ocaml_faad_mp4_open_read" external open_read_fd : bool -> Unix.file_descr -> t = "ocaml_faad_mp4_open_read_fd" let openfile ?write ?seek ?trunc read = open_read false read write seek trunc let openfile_fd = open_read_fd false external seek : t -> track -> int -> int * int = "ocaml_faad_mp4_seek" let seek mp4 track offset = let sample, to_skip = seek mp4 track offset in if sample < 0 then raise Failed else (sample, to_skip) external tracks : t -> int = "ocaml_faad_mp4_total_tracks" external find_aac_track : t -> track = "ocaml_faad_mp4_find_aac_track" external init : t -> decoder -> track -> int * int = "ocaml_faad_mp4_init" external samples : t -> track -> int = "ocaml_faad_mp4_num_samples" external read_sample : t -> track -> sample -> string = "ocaml_faad_mp4_read_sample" external decode : t -> track -> sample -> decoder -> float array array = "ocaml_faad_mp4_decode" external metadata : t -> (string * string) array = "ocaml_faad_mp4_metadata" end ocaml-faad-0.5.1/src/faad.mli000066400000000000000000000063451424177474500157150ustar00rootroot00000000000000(* * Copyright (C) 2003-2008 Samuel Mimram * (C) 2006-2010 The Savonet Team * * Ocaml-faad is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Ocaml-faad is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Ocaml-faad; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *) (** * Library for decoding AAC and AAC+ streams. * * @author Samuel Mimram *) (** Internal state of a decoder. *) type t (** An error occured... *) exception Error of int exception Failed (** Get the error message corresponding to a raised [Error]. *) val error_message : int -> string (** A decode call can eat up to [min_bytes_per_channel] bytes per decoded channel, so at least so much bytes per channel should be available in this stream. *) val min_bytes_per_channel : int val create : unit -> t (** [init dec buf ofs len] initializes a decoder given the [len] bytes of data * in [buf] starting at offset [ofs]. It returns the offset (number of bytes to * skip), the samplerate and the number of channels of the stream. This function * should be used for AAC data. *) val init : t -> Bytes.t -> int -> int -> int * int * int (** [decode dec buf ofs len] decodes at most [len] bytes of data in [buf] * starting at offset [ofs]. It returns the number of bytes actually decoded * and the decoded data (non-interleaved). *) val decode : t -> Bytes.t -> int -> int -> int * float array array val post_sync_reset : t -> unit (** Heuristic guess of the offset of the begining of a frame. *) val find_frame : string -> int module Mp4 : sig type decoder = t (** An MP4 reader. *) type t (** A track number. *) type track = int (** A sample number. *) type sample = int (** Data read. Same signature as [Unix.read]. *) type read = bytes -> int -> int -> int (** Detect whether the file is an MP4 given at least 8 bytes of its header. *) val is_mp4 : string -> bool (** Open an MP4 file. *) val openfile : ?write:(Bytes.t -> int) -> ?seek:(int -> int) -> ?trunc:(unit -> int) -> read -> t val openfile_fd : Unix.file_descr -> t (** Total number of tracks. *) val tracks : t -> int (** Find the first AAC track. *) val find_aac_track : t -> track (** Initialize a decoder. *) val init : t -> decoder -> track -> int * int (** Seek to the given offset, in audio samples. * returns a pair [sample,toskip] where * [sample] is the new current (mp4) sample * and [toskip] is an amount of audio sample * that should be skipped. *) val seek : t -> track -> int -> int * int val samples : t -> track -> int val read_sample : t -> track -> sample -> string val decode : t -> track -> sample -> decoder -> float array array val metadata : t -> (string * string) array end ocaml-faad-0.5.1/src/faad_stubs.c000066400000000000000000000335761424177474500166040ustar00rootroot00000000000000/* * Copyright (C) 2003-2008 Samuel Mimram * (C) 2008-2010 The Savonet Team * * This file is part of Ocaml-faad. * * Ocaml-faad is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Ocaml-faad is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Ocaml-faad; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** * Libfaad bindings for OCaml. * * @author Samuel Mimram */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mp4ff.h" static void check_err(int n) { if (n < 0) caml_raise_constant(*caml_named_value("ocaml_faad_exn_failed")); } #define Dec_val(v) (*(NeAACDecHandle*)Data_custom_val(v)) static void finalize_faad_dec(value l) { NeAACDecHandle dh = Dec_val(l); NeAACDecClose(dh); } static struct custom_operations faad_dec_ops = { "ocaml_faad_dec", finalize_faad_dec, custom_compare_default, custom_hash_default, custom_serialize_default, custom_deserialize_default }; CAMLprim value ocaml_faad_open(value unit) { CAMLparam0(); CAMLlocal1(ret); NeAACDecHandle dh = NeAACDecOpen(); NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(dh); conf->outputFormat = FAAD_FMT_FLOAT; NeAACDecSetConfiguration(dh, conf); ret = caml_alloc_custom(&faad_dec_ops, sizeof(NeAACDecHandle), 0, 1); Dec_val(ret) = dh; CAMLreturn(ret); } CAMLprim value ocaml_faad_min_bytes_per_channel(value unit) { return Val_int(FAAD_MIN_STREAMSIZE); } CAMLprim value ocaml_faad_init(value dh, value _buf, value _ofs, value _len) { CAMLparam2(dh,_buf); CAMLlocal1(ans); unsigned long samplerate; uint8_t channels; int32_t offset; int32_t pre_offset = 0; int ofs = Int_val(_ofs); int len = Int_val(_len); unsigned char *buf = (unsigned char*)String_val(_buf); int i; /* ADTS mpeg file can be a stream and start in the middle of a * frame so we need to have extra loop check here */ for (i = ofs; i < len - 1; i++) { if (buf[i] == 0xff && (buf[i+1] & 0xf6) == 0xf0) { pre_offset = i; break; } } offset = NeAACDecInit(Dec_val(dh), buf+ofs+pre_offset, len-pre_offset, &samplerate, &channels); check_err(offset); ans = caml_alloc_tuple(3); Store_field(ans, 0, Val_int(offset+pre_offset)); Store_field(ans, 1, Val_int(samplerate)); Store_field(ans, 2, Val_int(channels)); CAMLreturn(ans); } CAMLprim value ocaml_faad_post_seek_reset(value _dh) { CAMLparam1(_dh); NeAACDecHandle dh = Dec_val(_dh); NeAACDecPostSeekReset(dh,0); CAMLreturn(Val_unit); } CAMLprim value ocaml_faad_decode(value _dh, value _inbuf, value _inbufofs, value _inbuflen) { CAMLparam2(_dh,_inbuf); CAMLlocal2(ans, outbuf); NeAACDecFrameInfo frameInfo; int inbufofs = Int_val(_inbufofs); int inbuflen = Int_val(_inbuflen); unsigned char *inbuf = malloc(inbuflen); float *data; int c, i; memcpy(inbuf, String_val(_inbuf)+inbufofs, inbuflen); NeAACDecHandle dh = Dec_val(_dh); caml_release_runtime_system(); data = NeAACDecDecode(dh, &frameInfo, inbuf, inbuflen); caml_acquire_runtime_system(); free(inbuf); if (frameInfo.error > 0) caml_raise_with_arg(*caml_named_value("ocaml_faad_exn_error"), Val_int(frameInfo.error)); if (!data) caml_raise_constant(*caml_named_value("ocaml_faad_exn_failed")); outbuf = caml_alloc_tuple(frameInfo.channels); for(c = 0; c < frameInfo.channels; c++) Store_field(outbuf, c, caml_alloc(frameInfo.samples / frameInfo.channels * Double_wosize, Double_array_tag)); for(i = 0; i < frameInfo.samples; i++) Store_double_field(Field(outbuf, i % frameInfo.channels), i / frameInfo.channels, data[i]); ans = caml_alloc_tuple(2); Store_field(ans, 0, Val_int(frameInfo.bytesconsumed)); Store_field(ans, 1, outbuf); CAMLreturn(ans); } CAMLprim value ocaml_faad_get_error_message(value err) { return caml_copy_string((char*)NeAACDecGetErrorMessage(Int_val(err))); } /***** MP4 *****/ typedef struct { mp4ff_t *ff; mp4ff_callback_t ff_cb; int fd; value read_cb; value write_cb; value seek_cb; value trunc_cb; } mp4_t; #define Mp4_val(v) (*((mp4_t**)Data_custom_val(v))) static void finalize_mp4(value e) { mp4_t *mp = Mp4_val(e); if (mp->ff) mp4ff_close(mp->ff); if (mp->read_cb) caml_remove_generational_global_root(&mp->read_cb); if (mp->write_cb) caml_remove_generational_global_root(&mp->write_cb); if (mp->seek_cb) caml_remove_generational_global_root(&mp->seek_cb); if (mp->trunc_cb) caml_remove_generational_global_root(&mp->trunc_cb); free(mp); } static struct custom_operations mp4_ops = { "ocaml_mp4_t", finalize_mp4, custom_compare_default, custom_hash_default, custom_serialize_default, custom_deserialize_default }; static uint32_t read_cb(void *user_data, void *buffer, uint32_t length) { mp4_t *mp = (mp4_t*)user_data; value ans; int len; value tmp; if (mp->fd != -1) return read(mp->fd, buffer, length); else { caml_acquire_runtime_system(); tmp = caml_alloc_string(length); caml_register_generational_global_root(&tmp); ans = caml_callback3_exn(mp->read_cb, tmp, Val_int(0), Val_int(length)); if (Is_exception_result(ans)) { ans = Extract_exception(ans); caml_remove_generational_global_root(&tmp); caml_raise(ans); } len = Int_val(ans); if (len > 0) memcpy(buffer, String_val(tmp), len); caml_remove_generational_global_root(&tmp); caml_release_runtime_system(); return len; } } static uint32_t write_cb(void *user_data, void *buffer, uint32_t length) { mp4_t *mp = (mp4_t*)user_data; if (mp->fd != -1) return write(mp->fd, buffer, length); else return 0; } static uint32_t seek_cb(void *user_data, uint64_t position) { mp4_t *mp = (mp4_t*)user_data; value ans; int pos; if (mp->fd != -1) return lseek(mp->fd, position, SEEK_SET)!=-1?0:-1; else { caml_acquire_runtime_system(); ans = caml_callback(mp->seek_cb, Val_int(position)); pos = Int_val(ans); caml_release_runtime_system(); return pos; } } static uint32_t trunc_cb(void *user_data) { //mp4_t *mp = (mp4_t*)user_data; return -1; } CAMLprim value ocaml_faad_mp4_open_read(value metaonly, value read, value write, value seek, value trunc) { CAMLparam4(read, write, seek, trunc); CAMLlocal1(ans); mp4_t *mp = malloc(sizeof(mp4_t)); mp->fd = -1; mp->ff_cb.read = read_cb; mp->read_cb = read; caml_register_generational_global_root(&mp->read_cb); if (Is_block(write)) { mp->ff_cb.write = write_cb; mp->write_cb = Field(write, 0); caml_register_generational_global_root(&mp->write_cb); } else { mp->ff_cb.write = NULL; mp->write_cb = (value)NULL; } if (Is_block(seek)) { mp->ff_cb.seek = seek_cb; mp->seek_cb = Field(seek, 0); caml_register_generational_global_root(&mp->seek_cb); } else { mp->ff_cb.seek = NULL; mp->seek_cb = (value)NULL; } if (Is_block(trunc)) { mp->ff_cb.truncate = trunc_cb; mp->trunc_cb = Field(trunc, 0); caml_register_generational_global_root(&mp->trunc_cb); } else { mp->ff_cb.truncate = NULL; mp->trunc_cb = (value)NULL; } mp->ff_cb.user_data = mp; caml_release_runtime_system(); if(Bool_val(metaonly)) mp->ff = mp4ff_open_read_metaonly(&mp->ff_cb); else mp->ff = mp4ff_open_read(&mp->ff_cb); caml_acquire_runtime_system(); assert(mp->ff); ans = caml_alloc_custom(&mp4_ops, sizeof(mp4_t*), 1, 0); Mp4_val(ans) = mp; CAMLreturn(ans); } #ifdef WIN32 #define GET_FD(fh) win_CRT_fd_of_filedescr(fh) #else #define GET_FD(fh) Int_val(fh) #endif CAMLprim value ocaml_faad_mp4_open_read_fd(value metaonly, value fd) { CAMLparam2(metaonly, fd); CAMLlocal1(ans); mp4_t *mp = malloc(sizeof(mp4_t)); mp->fd = GET_FD(fd); mp->ff_cb.read = read_cb; mp->read_cb = (value)NULL; mp->ff_cb.write = write_cb; mp->write_cb = (value)NULL; mp->ff_cb.seek = seek_cb; mp->seek_cb = (value)NULL; mp->ff_cb.truncate = trunc_cb; mp->trunc_cb = (value)NULL; mp->ff_cb.user_data = mp; caml_release_runtime_system(); if(Bool_val(metaonly)) mp->ff = mp4ff_open_read_metaonly(&mp->ff_cb); else mp->ff = mp4ff_open_read(&mp->ff_cb); caml_acquire_runtime_system(); assert(mp->ff); ans = caml_alloc_custom(&mp4_ops, sizeof(mp4_t*), 1, 0); Mp4_val(ans) = mp; CAMLreturn(ans); } CAMLprim value ocaml_faad_mp4_total_tracks(value m) { CAMLparam1(m); mp4_t *mp = Mp4_val(m); int n; caml_release_runtime_system(); n = mp4ff_total_tracks(mp->ff); caml_acquire_runtime_system(); CAMLreturn(Val_int(n)); } CAMLprim value ocaml_faad_mp4_seek(value m, value track, value offset) { CAMLparam1(m); CAMLlocal1(ret); int32_t toskip = 0; mp4_t *mp = Mp4_val(m); int t = Int_val(track); caml_release_runtime_system(); int sample = mp4ff_find_sample(mp->ff,t,(int64_t)(Int_val(offset)),&toskip); caml_acquire_runtime_system(); ret = caml_alloc_tuple(2); Field(ret,0) = Val_int(sample); Field(ret,1) = Val_int(toskip); CAMLreturn(ret); } CAMLprim value ocaml_faad_mp4_find_aac_track(value m) { CAMLparam1(m); mp4_t *mp = Mp4_val(m); int i, rc; int num_tracks; caml_release_runtime_system(); num_tracks = mp4ff_total_tracks(mp->ff); for (i = 0; i < num_tracks; i++) { unsigned char *buff = NULL; unsigned int buff_size = 0; mp4AudioSpecificConfig mp4ASC; mp4ff_get_decoder_config(mp->ff, i, &buff, &buff_size); if (buff) { rc = NeAACDecAudioSpecificConfig(buff, buff_size, &mp4ASC); free(buff); if (rc < 0) continue; caml_acquire_runtime_system(); CAMLreturn(Val_int(i)); } } caml_acquire_runtime_system(); caml_raise_constant(*caml_named_value("ocaml_faad_exn_failed")); } CAMLprim value ocaml_faad_mp4_init(value m, value dh, value track) { CAMLparam3(m, dh, track); CAMLlocal1(ans); mp4_t *mp = Mp4_val(m); int t = Int_val(track); int ret; long unsigned int samplerate; unsigned char channels; NeAACDecHandle dec = Dec_val(dh); unsigned char *mp4_buffer = NULL; unsigned int mp4_buffer_size = 0; caml_release_runtime_system(); mp4ff_get_decoder_config(mp->ff, t, &mp4_buffer, &mp4_buffer_size); ret = NeAACDecInit2(dec, mp4_buffer, mp4_buffer_size, &samplerate, &channels); caml_acquire_runtime_system(); free(mp4_buffer); check_err(ret); ans = caml_alloc_tuple(2); Store_field(ans, 0, Val_int(samplerate)); Store_field(ans, 1, Val_int(channels)); CAMLreturn(ans); } CAMLprim value ocaml_faad_mp4_num_samples(value m, value track) { CAMLparam2(m, track); mp4_t *mp = Mp4_val(m); int t = Int_val(track); int ans; caml_release_runtime_system(); ans = mp4ff_num_samples(mp->ff, t); caml_acquire_runtime_system(); CAMLreturn(Val_int(ans)); } CAMLprim value ocaml_faad_mp4_read_sample(value m, value track, value sample) { CAMLparam3(m, track, sample); CAMLlocal1(ans); mp4_t *mp = Mp4_val(m); int t = Int_val(track); int s = Int_val(sample); int8_t *buf = NULL; unsigned int buflen = 0; int ret; caml_release_runtime_system(); ret = mp4ff_read_sample(mp->ff, t, s, &buf, &buflen); caml_acquire_runtime_system(); check_err(ret); ans = caml_alloc_string(buflen); memcpy((void *)String_val(ans), buf, buflen); free(buf); CAMLreturn(ans); } // Same as Faad.decode (Faad.Mp4.read_sample) but more efficient. Share code? CAMLprim value ocaml_faad_mp4_decode(value m, value track, value sample, value dh) { CAMLparam4(m, track, sample, dh); CAMLlocal1(outbuf); mp4_t *mp = Mp4_val(m); int t = Int_val(track); int s = Int_val(sample); NeAACDecHandle dec = Dec_val(dh); NeAACDecFrameInfo frameInfo; int8_t *inbuf = NULL; unsigned int inbuflen = 0; float *data; int c, i, ret; caml_release_runtime_system(); ret = mp4ff_read_sample(mp->ff, t, s, &inbuf, &inbuflen); caml_acquire_runtime_system(); check_err(ret); caml_release_runtime_system(); data = NeAACDecDecode(dec, &frameInfo, (uint8_t *)inbuf, inbuflen); caml_acquire_runtime_system(); free(inbuf); if (!data) caml_raise_constant(*caml_named_value("ocaml_faad_exn_failed")); if (frameInfo.error != 0) caml_raise_with_arg(*caml_named_value("ocaml_faad_exn_error"), Val_int(frameInfo.error)); outbuf = caml_alloc_tuple(frameInfo.channels); for(c = 0; c < frameInfo.channels; c++) Store_field(outbuf, c, caml_alloc(frameInfo.samples / frameInfo.channels * Double_wosize, Double_array_tag)); for(i = 0; i < frameInfo.samples; i++) Store_double_field(Field(outbuf, i % frameInfo.channels), i / frameInfo.channels, data[i]); CAMLreturn(outbuf); } CAMLprim value ocaml_faad_mp4_metadata(value m) { CAMLparam1(m); CAMLlocal2(ans,v); mp4_t *mp = Mp4_val(m); int i, n; char *tag, *item; caml_release_runtime_system(); n = mp4ff_meta_get_num_items(mp->ff); caml_acquire_runtime_system(); ans = caml_alloc_tuple(n); for (i = 0; i < n; i++) { tag = NULL; item = NULL; caml_release_runtime_system(); mp4ff_meta_get_by_index(mp->ff, i, &item, &tag); caml_acquire_runtime_system(); assert(item && tag); v = caml_alloc_tuple(2); Store_field(v, 0, caml_copy_string(item)); Store_field(v, 1, caml_copy_string(tag)); Store_field(ans, i, v); free(item); free(tag); } CAMLreturn(ans); } ocaml-faad-0.5.1/src/mp4atom.c000066400000000000000000000603551424177474500160450ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4atom.c,v 1.29 2009/01/19 23:56:30 menno Exp $ **/ #include #include #ifdef _WIN32 # include # include #endif #include "mp4ffint.h" #define COPYRIGHT_SYMBOL ((int8_t)0xA9) /* parse atom header size */ static int32_t mp4ff_atom_get_size(const int8_t *data) { uint32_t result; uint32_t a, b, c, d; a = (uint8_t)data[0]; b = (uint8_t)data[1]; c = (uint8_t)data[2]; d = (uint8_t)data[3]; result = (a<<24) | (b<<16) | (c<<8) | d; //if (result > 0 && result < 8) result = 8; return (int32_t)result; } /* comnapre 2 atom names, returns 1 for equal, 0 for unequal */ static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t c1, const int8_t d1, const int8_t a2, const int8_t b2, const int8_t c2, const int8_t d2) { if (a1 == a2 && b1 == b2 && c1 == c2 && d1 == d2) return 1; else return 0; } static uint8_t mp4ff_atom_name_to_type(const int8_t a, const int8_t b, const int8_t c, const int8_t d) { if (a == 'm') { if (mp4ff_atom_compare(a,b,c,d, 'm','o','o','v')) return ATOM_MOOV; else if (mp4ff_atom_compare(a,b,c,d, 'm','i','n','f')) return ATOM_MINF; else if (mp4ff_atom_compare(a,b,c,d, 'm','d','i','a')) return ATOM_MDIA; else if (mp4ff_atom_compare(a,b,c,d, 'm','d','a','t')) return ATOM_MDAT; else if (mp4ff_atom_compare(a,b,c,d, 'm','d','h','d')) return ATOM_MDHD; else if (mp4ff_atom_compare(a,b,c,d, 'm','v','h','d')) return ATOM_MVHD; else if (mp4ff_atom_compare(a,b,c,d, 'm','p','4','a')) return ATOM_MP4A; else if (mp4ff_atom_compare(a,b,c,d, 'm','p','4','v')) return ATOM_MP4V; else if (mp4ff_atom_compare(a,b,c,d, 'm','p','4','s')) return ATOM_MP4S; else if (mp4ff_atom_compare(a,b,c,d, 'm','e','t','a')) return ATOM_META; } else if (a == 't') { if (mp4ff_atom_compare(a,b,c,d, 't','r','a','k')) return ATOM_TRAK; else if (mp4ff_atom_compare(a,b,c,d, 't','k','h','d')) return ATOM_TKHD; else if (mp4ff_atom_compare(a,b,c,d, 't','r','e','f')) return ATOM_TREF; else if (mp4ff_atom_compare(a,b,c,d, 't','r','k','n')) return ATOM_TRACK; else if (mp4ff_atom_compare(a,b,c,d, 't','m','p','o')) return ATOM_TEMPO; else if (mp4ff_atom_compare(a,b,c,d, 't','v','n','n')) return ATOM_NETWORK; else if (mp4ff_atom_compare(a,b,c,d, 't','v','s','h')) return ATOM_SHOW; else if (mp4ff_atom_compare(a,b,c,d, 't','v','e','n')) return ATOM_EPISODENAME; else if (mp4ff_atom_compare(a,b,c,d, 't','v','s','n')) return ATOM_SEASON; else if (mp4ff_atom_compare(a,b,c,d, 't','v','e','s')) return ATOM_EPISODE; } else if (a == 's') { if (mp4ff_atom_compare(a,b,c,d, 's','t','b','l')) return ATOM_STBL; else if (mp4ff_atom_compare(a,b,c,d, 's','m','h','d')) return ATOM_SMHD; else if (mp4ff_atom_compare(a,b,c,d, 's','t','s','d')) return ATOM_STSD; else if (mp4ff_atom_compare(a,b,c,d, 's','t','t','s')) return ATOM_STTS; else if (mp4ff_atom_compare(a,b,c,d, 's','t','c','o')) return ATOM_STCO; else if (mp4ff_atom_compare(a,b,c,d, 's','t','s','c')) return ATOM_STSC; else if (mp4ff_atom_compare(a,b,c,d, 's','t','s','z')) return ATOM_STSZ; else if (mp4ff_atom_compare(a,b,c,d, 's','t','z','2')) return ATOM_STZ2; else if (mp4ff_atom_compare(a,b,c,d, 's','k','i','p')) return ATOM_SKIP; else if (mp4ff_atom_compare(a,b,c,d, 's','i','n','f')) return ATOM_SINF; else if (mp4ff_atom_compare(a,b,c,d, 's','c','h','i')) return ATOM_SCHI; else if (mp4ff_atom_compare(a,b,c,d, 's','o','n','m')) return ATOM_SORTTITLE; else if (mp4ff_atom_compare(a,b,c,d, 's','o','a','l')) return ATOM_SORTALBUM; else if (mp4ff_atom_compare(a,b,c,d, 's','o','a','r')) return ATOM_SORTARTIST; else if (mp4ff_atom_compare(a,b,c,d, 's','o','a','a')) return ATOM_SORTALBUMARTIST; else if (mp4ff_atom_compare(a,b,c,d, 's','o','c','o')) return ATOM_SORTWRITER; else if (mp4ff_atom_compare(a,b,c,d, 's','o','s','n')) return ATOM_SORTSHOW; } else if (a == COPYRIGHT_SYMBOL) { if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'n','a','m')) return ATOM_TITLE; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'A','R','T')) return ATOM_ARTIST; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'w','r','t')) return ATOM_WRITER; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'a','l','b')) return ATOM_ALBUM; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'d','a','y')) return ATOM_DATE; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'t','o','o')) return ATOM_TOOL; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'c','m','t')) return ATOM_COMMENT; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'g','e','n')) return ATOM_GENRE1; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'g','r','p')) return ATOM_CONTENTGROUP; else if (mp4ff_atom_compare(a,b,c,d, COPYRIGHT_SYMBOL,'l','y','r')) return ATOM_LYRICS; } if (mp4ff_atom_compare(a,b,c,d, 'e','d','t','s')) return ATOM_EDTS; else if (mp4ff_atom_compare(a,b,c,d, 'e','s','d','s')) return ATOM_ESDS; else if (mp4ff_atom_compare(a,b,c,d, 'f','t','y','p')) return ATOM_FTYP; else if (mp4ff_atom_compare(a,b,c,d, 'f','r','e','e')) return ATOM_FREE; else if (mp4ff_atom_compare(a,b,c,d, 'h','m','h','d')) return ATOM_HMHD; else if (mp4ff_atom_compare(a,b,c,d, 'v','m','h','d')) return ATOM_VMHD; else if (mp4ff_atom_compare(a,b,c,d, 'u','d','t','a')) return ATOM_UDTA; else if (mp4ff_atom_compare(a,b,c,d, 'i','l','s','t')) return ATOM_ILST; else if (mp4ff_atom_compare(a,b,c,d, 'n','a','m','e')) return ATOM_NAME; else if (mp4ff_atom_compare(a,b,c,d, 'd','a','t','a')) return ATOM_DATA; else if (mp4ff_atom_compare(a,b,c,d, 'd','i','s','k')) return ATOM_DISC; else if (mp4ff_atom_compare(a,b,c,d, 'g','n','r','e')) return ATOM_GENRE2; else if (mp4ff_atom_compare(a,b,c,d, 'c','o','v','r')) return ATOM_COVER; else if (mp4ff_atom_compare(a,b,c,d, 'c','p','i','l')) return ATOM_COMPILATION; else if (mp4ff_atom_compare(a,b,c,d, 'c','t','t','s')) return ATOM_CTTS; else if (mp4ff_atom_compare(a,b,c,d, 'd','r','m','s')) return ATOM_DRMS; else if (mp4ff_atom_compare(a,b,c,d, 'f','r','m','a')) return ATOM_FRMA; else if (mp4ff_atom_compare(a,b,c,d, 'p','r','i','v')) return ATOM_PRIV; else if (mp4ff_atom_compare(a,b,c,d, 'i','v','i','v')) return ATOM_IVIV; else if (mp4ff_atom_compare(a,b,c,d, 'u','s','e','r')) return ATOM_USER; else if (mp4ff_atom_compare(a,b,c,d, 'k','e','y',' ')) return ATOM_KEY; else if (mp4ff_atom_compare(a,b,c,d, 'a','A','R','T')) return ATOM_ALBUM_ARTIST; else if (mp4ff_atom_compare(a,b,c,d, 'd','e','s','c')) return ATOM_DESCRIPTION; else if (mp4ff_atom_compare(a,b,c,d, 'p','c','s','t')) return ATOM_PODCAST; else return ATOM_UNKNOWN; } /* read atom header, return atom size, atom size is with header included */ uint64_t mp4ff_atom_read_header(mp4ff_t *f, uint8_t *atom_type, uint8_t *header_size) { uint64_t size; int32_t ret; int8_t atom_header[8]; ret = mp4ff_read_data(f, atom_header, 8); if (ret != 8) return 0; size = mp4ff_atom_get_size(atom_header); *header_size = 8; /* check for 64 bit atom size */ if (size == 1) { *header_size = 16; size = mp4ff_read_int64(f); } //printf("%c%c%c%c\n", atom_header[4], atom_header[5], atom_header[6], atom_header[7]); *atom_type = mp4ff_atom_name_to_type(atom_header[4], atom_header[5], atom_header[6], atom_header[7]); return size; } static int32_t mp4ff_read_stsz(mp4ff_t *f) { if (f->total_tracks == 0) return f->error++; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ f->track[f->total_tracks - 1]->stsz_sample_size = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->stsz_sample_count = mp4ff_read_int32(f); if (f->track[f->total_tracks - 1]->stsz_sample_size == 0) { int32_t i; f->track[f->total_tracks - 1]->stsz_table = (int32_t*)malloc(f->track[f->total_tracks - 1]->stsz_sample_count*sizeof(int32_t)); if (!f->track[f->total_tracks - 1]->stsz_table) return f->error++; for (i = 0; i < f->track[f->total_tracks - 1]->stsz_sample_count && !f->stream->read_error; i++) { f->track[f->total_tracks - 1]->stsz_table[i] = mp4ff_read_int32(f); } } return 0; } static int32_t mp4ff_read_esds(mp4ff_t *f) { uint8_t tag; uint32_t temp; if (f->total_tracks == 0) return f->error++; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ /* get and verify ES_DescrTag */ tag = mp4ff_read_char(f); if (tag == 0x03) { /* read length */ if (mp4ff_read_mp4_descr_length(f) < 5 + 15) { return 1; } /* skip 3 bytes */ mp4ff_read_int24(f); } else { /* skip 2 bytes */ mp4ff_read_int16(f); } /* get and verify DecoderConfigDescrTab */ if (mp4ff_read_char(f) != 0x04) { return 1; } /* read length */ temp = mp4ff_read_mp4_descr_length(f); if (temp < 13) return 1; f->track[f->total_tracks - 1]->audioType = mp4ff_read_char(f); mp4ff_read_int32(f);//0x15000414 ???? f->track[f->total_tracks - 1]->maxBitrate = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->avgBitrate = mp4ff_read_int32(f); /* get and verify DecSpecificInfoTag */ if (mp4ff_read_char(f) != 0x05) { return 1; } /* read length */ f->track[f->total_tracks - 1]->decoderConfigLen = mp4ff_read_mp4_descr_length(f); if (f->track[f->total_tracks - 1]->decoderConfig) free(f->track[f->total_tracks - 1]->decoderConfig); f->track[f->total_tracks - 1]->decoderConfig = malloc(f->track[f->total_tracks - 1]->decoderConfigLen); if (f->track[f->total_tracks - 1]->decoderConfig) { mp4ff_read_data(f, f->track[f->total_tracks - 1]->decoderConfig, f->track[f->total_tracks - 1]->decoderConfigLen); } else { f->track[f->total_tracks - 1]->decoderConfigLen = 0; } /* will skip the remainder of the atom */ return 0; } static int32_t mp4ff_read_mp4a(mp4ff_t *f) { uint64_t size; int32_t i; uint8_t atom_type = 0; uint8_t header_size = 0; if (f->total_tracks == 0) return f->error++; for (i = 0; i < 6; i++) { mp4ff_read_char(f); /* reserved */ } /* data_reference_index */ mp4ff_read_int16(f); mp4ff_read_int32(f); /* reserved */ mp4ff_read_int32(f); /* reserved */ f->track[f->total_tracks - 1]->channelCount = mp4ff_read_int16(f); f->track[f->total_tracks - 1]->sampleSize = mp4ff_read_int16(f); mp4ff_read_int16(f); mp4ff_read_int16(f); f->track[f->total_tracks - 1]->sampleRate = mp4ff_read_int16(f); mp4ff_read_int16(f); size = mp4ff_atom_read_header(f, &atom_type, &header_size); if (atom_type == ATOM_ESDS) { mp4ff_read_esds(f); } return 0; } static int32_t mp4ff_read_stsd(mp4ff_t *f) { int32_t i; uint8_t header_size = 0; /* CVE-2017-9218 */ if (f->total_tracks == 0) return f->error++; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ f->track[f->total_tracks - 1]->stsd_entry_count = mp4ff_read_int32(f); for (i = 0; i < f->track[f->total_tracks - 1]->stsd_entry_count && !f->stream->read_error; i++) /* CVE-2017-9253 */ { uint64_t skip = mp4ff_position(f); uint64_t size; uint8_t atom_type = 0; size = mp4ff_atom_read_header(f, &atom_type, &header_size); skip += size; if (atom_type == ATOM_MP4A) { f->track[f->total_tracks - 1]->type = TRACK_AUDIO; mp4ff_read_mp4a(f); } else if (atom_type == ATOM_MP4V) { f->track[f->total_tracks - 1]->type = TRACK_VIDEO; } else if (atom_type == ATOM_MP4S) { f->track[f->total_tracks - 1]->type = TRACK_SYSTEM; } else { f->track[f->total_tracks - 1]->type = TRACK_UNKNOWN; } mp4ff_set_position(f, skip); } return 0; } static int32_t mp4ff_read_stsc(mp4ff_t *f) { int32_t i; if (f->total_tracks == 0) return f->error++; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ f->track[f->total_tracks - 1]->stsc_entry_count = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->stsc_first_chunk = (int32_t*)malloc(f->track[f->total_tracks - 1]->stsc_entry_count*sizeof(int32_t)); f->track[f->total_tracks - 1]->stsc_samples_per_chunk = (int32_t*)malloc(f->track[f->total_tracks - 1]->stsc_entry_count*sizeof(int32_t)); f->track[f->total_tracks - 1]->stsc_sample_desc_index = (int32_t*)malloc(f->track[f->total_tracks - 1]->stsc_entry_count*sizeof(int32_t)); /* CVE-2017-9219 */ if (!f->track[f->total_tracks - 1]->stsc_first_chunk) { return f->error++; } if (!f->track[f->total_tracks - 1]->stsc_samples_per_chunk) { free(f->track[f->total_tracks - 1]->stsc_first_chunk); f->track[f->total_tracks - 1]->stsc_first_chunk = NULL; return f->error++; } if (!f->track[f->total_tracks - 1]->stsc_sample_desc_index) { free(f->track[f->total_tracks - 1]->stsc_first_chunk); f->track[f->total_tracks - 1]->stsc_first_chunk = NULL; free(f->track[f->total_tracks - 1]->stsc_samples_per_chunk); f->track[f->total_tracks - 1]->stsc_samples_per_chunk = NULL; return f->error++; } for (i = 0; i < f->track[f->total_tracks - 1]->stsc_entry_count && !f->stream->read_error; i++) /* CVE-2017-9255 */ { f->track[f->total_tracks - 1]->stsc_first_chunk[i] = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->stsc_samples_per_chunk[i] = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->stsc_sample_desc_index[i] = mp4ff_read_int32(f); } return 0; } static int32_t mp4ff_read_stco(mp4ff_t *f) { int32_t i; if (f->total_tracks == 0) return f->error++; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ f->track[f->total_tracks - 1]->stco_entry_count = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->stco_chunk_offset = (int32_t*)malloc(f->track[f->total_tracks - 1]->stco_entry_count*sizeof(int32_t)); /* CVE-2017-9220 */ if (!f->track[f->total_tracks - 1]->stco_chunk_offset) return f->error++; for (i = 0; i < f->track[f->total_tracks - 1]->stco_entry_count && !f->stream->read_error; i++) /* CVE-2017-9256 */ { f->track[f->total_tracks - 1]->stco_chunk_offset[i] = mp4ff_read_int32(f); } return 0; } static int32_t mp4ff_read_ctts(mp4ff_t *f) { int32_t i; mp4ff_track_t * p_track; if (f->total_tracks == 0) return f->error++; p_track = f->track[f->total_tracks - 1]; if (p_track->ctts_entry_count) return 0; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ p_track->ctts_entry_count = mp4ff_read_int32(f); p_track->ctts_sample_count = (int32_t*)malloc(p_track->ctts_entry_count * sizeof(int32_t)); p_track->ctts_sample_offset = (int32_t*)malloc(p_track->ctts_entry_count * sizeof(int32_t)); if (p_track->ctts_sample_count == 0 || p_track->ctts_sample_offset == 0) { if (p_track->ctts_sample_count) {free(p_track->ctts_sample_count);p_track->ctts_sample_count=0;} if (p_track->ctts_sample_offset) {free(p_track->ctts_sample_offset);p_track->ctts_sample_offset=0;} p_track->ctts_entry_count = 0; return 0; } else { for (i = 0; i < f->track[f->total_tracks - 1]->ctts_entry_count && !f->stream->read_error; i++) /* CVE-2017-9257 */ { p_track->ctts_sample_count[i] = mp4ff_read_int32(f); p_track->ctts_sample_offset[i] = mp4ff_read_int32(f); } return 1; } } static int32_t mp4ff_read_stts(mp4ff_t *f) { int32_t i; mp4ff_track_t * p_track; /* CVE-2017-9223 */ if (f->total_tracks == 0) return f->error++; p_track = f->track[f->total_tracks - 1]; if (p_track->stts_entry_count) return 0; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ p_track->stts_entry_count = mp4ff_read_int32(f); p_track->stts_sample_count = (int32_t*)malloc(p_track->stts_entry_count * sizeof(int32_t)); p_track->stts_sample_delta = (int32_t*)malloc(p_track->stts_entry_count * sizeof(int32_t)); if (p_track->stts_sample_count == 0 || p_track->stts_sample_delta == 0) { if (p_track->stts_sample_count) {free(p_track->stts_sample_count);p_track->stts_sample_count=0;} if (p_track->stts_sample_delta) {free(p_track->stts_sample_delta);p_track->stts_sample_delta=0;} p_track->stts_entry_count = 0; return 0; } else { for (i = 0; i < f->track[f->total_tracks - 1]->stts_entry_count && !f->stream->read_error; i++) /* CVE-2017-9254 */ { p_track->stts_sample_count[i] = mp4ff_read_int32(f); p_track->stts_sample_delta[i] = mp4ff_read_int32(f); } return 1; } } static int32_t mp4ff_read_mvhd(mp4ff_t *f) { int32_t i; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ /* creation_time */ mp4ff_read_int32(f); /* modification_time */ mp4ff_read_int32(f); f->time_scale = mp4ff_read_int32(f); f->duration = mp4ff_read_int32(f); /* preferred_rate */ mp4ff_read_int32(f); /*mp4ff_read_fixed32(f);*/ /* preferred_volume */ mp4ff_read_int16(f); /*mp4ff_read_fixed16(f);*/ for (i = 0; i < 10; i++) { /* reserved */ mp4ff_read_char(f); } for (i = 0; i < 9; i++) { mp4ff_read_int32(f); /* matrix */ } /* preview_time */ mp4ff_read_int32(f); /* preview_duration */ mp4ff_read_int32(f); /* poster_time */ mp4ff_read_int32(f); /* selection_time */ mp4ff_read_int32(f); /* selection_duration */ mp4ff_read_int32(f); /* current_time */ mp4ff_read_int32(f); /* next_track_id */ mp4ff_read_int32(f); return 0; } #if 0 static int32_t mp4ff_read_tkhd(mp4ff_t *f) { uint8_t version; uint32_t flags; version = mp4ff_read_char(f); /* version */ flags = mp4ff_read_int24(f); /* flags */ if (version==1) { mp4ff_read_int64(f);//creation-time mp4ff_read_int64(f);//modification-time mp4ff_read_int32(f);//track-id mp4ff_read_int32(f);//reserved f->track[f->total_tracks - 1]->duration = mp4ff_read_int64(f);//duration } else //version == 0 { mp4ff_read_int32(f);//creation-time mp4ff_read_int32(f);//modification-time mp4ff_read_int32(f);//track-id mp4ff_read_int32(f);//reserved f->track[f->total_tracks - 1]->duration = mp4ff_read_int32(f);//duration if (f->track[f->total_tracks - 1]->duration == 0xFFFFFFFF) f->track[f->total_tracks - 1]->duration = 0xFFFFFFFFFFFFFFFF; } mp4ff_read_int32(f);//reserved mp4ff_read_int32(f);//reserved mp4ff_read_int16(f);//layer mp4ff_read_int16(f);//pre-defined mp4ff_read_int16(f);//volume mp4ff_read_int16(f);//reserved //matrix mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f); mp4ff_read_int32(f);//width mp4ff_read_int32(f);//height return 1; } #endif static int32_t mp4ff_read_mdhd(mp4ff_t *f) { uint32_t version; /* CVE-2017-9221 */ if (f->total_tracks == 0) return f->error++; version = mp4ff_read_int32(f); if (version==1) { mp4ff_read_int64(f);//creation-time mp4ff_read_int64(f);//modification-time f->track[f->total_tracks - 1]->timeScale = mp4ff_read_int32(f);//timescale f->track[f->total_tracks - 1]->duration = mp4ff_read_int64(f);//duration } else //version == 0 { uint32_t temp; mp4ff_read_int32(f);//creation-time mp4ff_read_int32(f);//modification-time f->track[f->total_tracks - 1]->timeScale = mp4ff_read_int32(f);//timescale temp = mp4ff_read_int32(f); f->track[f->total_tracks - 1]->duration = (temp == (uint32_t)(-1)) ? (uint64_t)(-1) : (uint64_t)(temp); } mp4ff_read_int16(f); mp4ff_read_int16(f); return 1; } #ifdef USE_TAGGING static int32_t mp4ff_read_meta(mp4ff_t *f, const uint64_t size) { uint64_t subsize, sumsize = 0; uint8_t atom_type; uint8_t header_size = 0; mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ while (sumsize < (size-(header_size+4))) { subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); if (subsize <= header_size+4) return 1; if (atom_type == ATOM_ILST) { mp4ff_parse_metadata(f, (uint32_t)(subsize-(header_size+4))); } else { mp4ff_set_position(f, mp4ff_position(f)+subsize-header_size); } sumsize += subsize; } return 0; } #endif int32_t mp4ff_atom_read(mp4ff_t *f, const int32_t size, const uint8_t atom_type) { uint64_t dest_position = mp4ff_position(f)+size-8; if (atom_type == ATOM_STSZ) { /* sample size box */ mp4ff_read_stsz(f); } else if (atom_type == ATOM_STTS) { /* time to sample box */ mp4ff_read_stts(f); } else if (atom_type == ATOM_CTTS) { /* composition offset box */ mp4ff_read_ctts(f); } else if (atom_type == ATOM_STSC) { /* sample to chunk box */ mp4ff_read_stsc(f); } else if (atom_type == ATOM_STCO) { /* chunk offset box */ mp4ff_read_stco(f); } else if (atom_type == ATOM_STSD) { /* sample description box */ mp4ff_read_stsd(f); } else if (atom_type == ATOM_MVHD) { /* movie header box */ mp4ff_read_mvhd(f); } else if (atom_type == ATOM_MDHD) { /* track header */ mp4ff_read_mdhd(f); #ifdef USE_TAGGING } else if (atom_type == ATOM_META) { /* iTunes Metadata box */ mp4ff_read_meta(f, size); #endif } mp4ff_set_position(f, dest_position); return 0; } ocaml-faad-0.5.1/src/mp4ff.c000066400000000000000000000301241424177474500154670ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4ff.c,v 1.22 2009/01/26 23:01:40 menno Exp $ **/ #include #include #include "mp4ffint.h" mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f) { mp4ff_t *ff = malloc(sizeof(mp4ff_t)); memset(ff, 0, sizeof(mp4ff_t)); ff->stream = f; parse_atoms(ff,0); if (ff->error) { free(ff); ff = NULL; } return ff; } mp4ff_t *mp4ff_open_read_metaonly(mp4ff_callback_t *f) { mp4ff_t *ff = malloc(sizeof(mp4ff_t)); memset(ff, 0, sizeof(mp4ff_t)); ff->stream = f; parse_atoms(ff,1); if (ff->error) { free(ff); ff = NULL; } return ff; } void mp4ff_close(mp4ff_t *ff) { int32_t i; for (i = 0; i < ff->total_tracks; i++) { if (ff->track[i]) { if (ff->track[i]->stsz_table) free(ff->track[i]->stsz_table); if (ff->track[i]->stts_sample_count) free(ff->track[i]->stts_sample_count); if (ff->track[i]->stts_sample_delta) free(ff->track[i]->stts_sample_delta); if (ff->track[i]->stsc_first_chunk) free(ff->track[i]->stsc_first_chunk); if (ff->track[i]->stsc_samples_per_chunk) free(ff->track[i]->stsc_samples_per_chunk); if (ff->track[i]->stsc_sample_desc_index) free(ff->track[i]->stsc_sample_desc_index); if (ff->track[i]->stco_chunk_offset) free(ff->track[i]->stco_chunk_offset); if (ff->track[i]->decoderConfig) free(ff->track[i]->decoderConfig); if (ff->track[i]->ctts_sample_count) free(ff->track[i]->ctts_sample_count); if (ff->track[i]->ctts_sample_offset) free(ff->track[i]->ctts_sample_offset); #ifdef ITUNES_DRM if (ff->track[i]->p_drms) drms_free(ff->track[i]->p_drms); #endif free(ff->track[i]); } } #ifdef USE_TAGGING mp4ff_tag_delete(&(ff->tags)); #endif if (ff) free(ff); } static void mp4ff_track_add(mp4ff_t *f) { f->total_tracks++; if (f->total_tracks > MAX_TRACKS) { f->total_tracks = 0; f->error++; return; } f->track[f->total_tracks - 1] = malloc(sizeof(mp4ff_track_t)); memset(f->track[f->total_tracks - 1], 0, sizeof(mp4ff_track_t)); } static int need_parse_when_meta_only(uint8_t atom_type) { switch(atom_type) { case ATOM_EDTS: // case ATOM_MDIA: // case ATOM_MINF: case ATOM_DRMS: case ATOM_SINF: case ATOM_SCHI: // case ATOM_STBL: // case ATOM_STSD: case ATOM_STTS: case ATOM_STSZ: case ATOM_STZ2: case ATOM_STCO: case ATOM_STSC: // case ATOM_CTTS: case ATOM_FRMA: case ATOM_IVIV: case ATOM_PRIV: return 0; default: return 1; } } /* parse atoms that are sub atoms of other atoms */ int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size,int meta_only) { uint64_t size; uint8_t atom_type = 0; uint64_t counted_size = 0; uint8_t header_size = 0; while (counted_size < total_size) { size = mp4ff_atom_read_header(f, &atom_type, &header_size); counted_size += size; /* check for end of file */ if (size == 0) break; /* we're starting to read a new track, update index, * so that all data and tables get written in the right place */ if (atom_type == ATOM_TRAK) { mp4ff_track_add(f); } /* parse subatoms */ if (meta_only && !need_parse_when_meta_only(atom_type)) { mp4ff_set_position(f, mp4ff_position(f)+size-header_size); } else if (atom_type < SUBATOMIC) { parse_sub_atoms(f, size-header_size,meta_only); } else { mp4ff_atom_read(f, (uint32_t)size, atom_type); } } return 0; } /* parse root atoms */ int32_t parse_atoms(mp4ff_t *f,int meta_only) { uint64_t size; uint8_t atom_type = 0; uint8_t header_size = 0; f->file_size = 0; f->stream->read_error = 0; while ((size = mp4ff_atom_read_header(f, &atom_type, &header_size)) != 0) { f->file_size += size; f->last_atom = atom_type; if (atom_type == ATOM_MDAT && f->moov_read) { /* moov atom is before mdat, we can stop reading when mdat is encountered */ /* file position will stay at beginning of mdat data */ // break; } if (atom_type == ATOM_MOOV && size > header_size) { f->moov_read = 1; f->moov_offset = mp4ff_position(f)-header_size; f->moov_size = size; } /* parse subatoms */ if (meta_only && !need_parse_when_meta_only(atom_type)) { mp4ff_set_position(f, mp4ff_position(f)+size-header_size); } else if (atom_type < SUBATOMIC) { parse_sub_atoms(f, size-header_size,meta_only); } else { /* skip this atom */ mp4ff_set_position(f, mp4ff_position(f)+size-header_size); } } return 0; } int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int32_t track, uint8_t** ppBuf, uint32_t* pBufSize) { if (track >= f->total_tracks) { *ppBuf = NULL; *pBufSize = 0; return 1; } if (f->track[track]->decoderConfig == NULL || f->track[track]->decoderConfigLen == 0) { *ppBuf = NULL; *pBufSize = 0; } else { *ppBuf = malloc(f->track[track]->decoderConfigLen); if (*ppBuf == NULL) { *pBufSize = 0; return 1; } memcpy(*ppBuf, f->track[track]->decoderConfig, f->track[track]->decoderConfigLen); *pBufSize = f->track[track]->decoderConfigLen; } return 0; } int32_t mp4ff_get_track_type(const mp4ff_t *f, const int track) { return f->track[track]->type; } int32_t mp4ff_total_tracks(const mp4ff_t *f) { return f->total_tracks; } int32_t mp4ff_time_scale(const mp4ff_t *f, const int32_t track) { return f->track[track]->timeScale; } uint32_t mp4ff_get_avg_bitrate(const mp4ff_t *f, const int32_t track) { return f->track[track]->avgBitrate; } uint32_t mp4ff_get_max_bitrate(const mp4ff_t *f, const int32_t track) { return f->track[track]->maxBitrate; } int64_t mp4ff_get_track_duration(const mp4ff_t *f, const int32_t track) { return f->track[track]->duration; } int64_t mp4ff_get_track_duration_use_offsets(const mp4ff_t *f, const int32_t track) { int64_t duration = mp4ff_get_track_duration(f,track); if (duration!=-1) { int64_t offset = mp4ff_get_sample_offset(f,track,0); if (offset > duration) duration = 0; else duration -= offset; } return duration; } int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track) { int32_t i; int32_t total = 0; for (i = 0; i < f->track[track]->stts_entry_count; i++) { total += f->track[track]->stts_sample_count[i]; } return total; } uint32_t mp4ff_get_sample_rate(const mp4ff_t *f, const int32_t track) { return f->track[track]->sampleRate; } uint32_t mp4ff_get_channel_count(const mp4ff_t * f,const int32_t track) { return f->track[track]->channelCount; } uint32_t mp4ff_get_audio_type(const mp4ff_t * f,const int32_t track) { return f->track[track]->audioType; } int32_t mp4ff_get_sample_duration_use_offsets(const mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t d,o; d = mp4ff_get_sample_duration(f,track,sample); if (d!=-1) { o = mp4ff_get_sample_offset(f,track,sample); if (o>d) d = 0; else d -= o; } return d; } int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t i, co = 0; for (i = 0; i < f->track[track]->stts_entry_count; i++) { int32_t delta = f->track[track]->stts_sample_count[i]; if (sample < co + delta) return f->track[track]->stts_sample_delta[i]; co += delta; } return (int32_t)(-1); } int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t i, co = 0; int64_t acc = 0; for (i = 0; i < f->track[track]->stts_entry_count; i++) { int32_t delta = f->track[track]->stts_sample_count[i]; if (sample < co + delta) { acc += f->track[track]->stts_sample_delta[i] * (sample - co); return acc; } else { acc += f->track[track]->stts_sample_delta[i] * delta; } co += delta; } return (int64_t)(-1); } int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t i, co = 0; for (i = 0; i < f->track[track]->ctts_entry_count; i++) { int32_t delta = f->track[track]->ctts_sample_count[i]; if (sample < co + delta) return f->track[track]->ctts_sample_offset[i]; co += delta; } return 0; } int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip) { int32_t i, co = 0; int64_t offset_total = 0; mp4ff_track_t * p_track = f->track[track]; for (i = 0; i < p_track->stts_entry_count; i++) { int32_t sample_count = p_track->stts_sample_count[i]; int32_t sample_delta = p_track->stts_sample_delta[i]; int64_t offset_delta = (int64_t)sample_delta * (int64_t)sample_count; if (offset < offset_total + offset_delta) { int64_t offset_fromstts = offset - offset_total; if (toskip) *toskip = (int32_t)(offset_fromstts % sample_delta); return co + (int32_t)(offset_fromstts / sample_delta); } else { offset_total += offset_delta; } co += sample_count; } return (int32_t)(-1); } int32_t mp4ff_find_sample_use_offsets(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip) { return mp4ff_find_sample(f,track,offset + mp4ff_get_sample_offset(f,track,0),toskip); } int32_t mp4ff_read_sample(mp4ff_t *f, const int32_t track, const int32_t sample, int8_t **audio_buffer, uint32_t *bytes) { int32_t result = 0; *bytes = mp4ff_audio_frame_size(f, track, sample); if (*bytes==0) return 0; *audio_buffer = (int8_t*)malloc(*bytes); mp4ff_set_sample_position(f, track, sample); result = mp4ff_read_data(f, *audio_buffer, *bytes); if (!result) { free(*audio_buffer); *audio_buffer = 0; return 0; } #ifdef ITUNES_DRM if (f->track[track]->p_drms != NULL) { drms_decrypt(f->track[track]->p_drms, (uint32_t*)*audio_buffer, *bytes); } #endif return *bytes; } int32_t mp4ff_read_sample_v2(mp4ff_t *f, const int track, const int sample,unsigned char *buffer) { int32_t result = 0; int32_t size = mp4ff_audio_frame_size(f,track,sample); if (size<=0) return 0; mp4ff_set_sample_position(f, track, sample); result = mp4ff_read_data(f,(int8_t *)buffer,size); #ifdef ITUNES_DRM if (f->track[track]->p_drms != NULL) { drms_decrypt(f->track[track]->p_drms, (uint32_t*)buffer, size); } #endif return result; } int32_t mp4ff_read_sample_getsize(mp4ff_t *f, const int track, const int sample) { int32_t temp = mp4ff_audio_frame_size(f, track, sample); if (temp<0) temp = 0; return temp; } ocaml-faad-0.5.1/src/mp4ff.h000066400000000000000000000155551424177474500155070ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4ff.h,v 1.27 2009/01/29 00:41:08 menno Exp $ **/ #ifndef MP4FF_H #define MP4FF_H #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #include /* file callback structure */ typedef struct { uint32_t (*read)(void *user_data, void *buffer, uint32_t length); uint32_t (*write)(void *udata, void *buffer, uint32_t length); uint32_t (*seek)(void *user_data, uint64_t position); uint32_t (*truncate)(void *user_data); void *user_data; uint32_t read_error; } mp4ff_callback_t; #ifdef USE_TAGGING /* metadata tag structure */ typedef struct { char *item; char *value; uint32_t len; } mp4ff_tag_t; /* metadata list structure */ typedef struct { mp4ff_tag_t *tags; uint32_t count; } mp4ff_metadata_t; int32_t mp4ff_meta_update(mp4ff_callback_t *f,const mp4ff_metadata_t * data); #endif #ifndef MP4FF_INTERNAL_H /* mp4 main file structure */ typedef void* mp4ff_t; #else typedef struct { int32_t type; int32_t channelCount; int32_t sampleSize; uint16_t sampleRate; int32_t audioType; /* stsd */ int32_t stsd_entry_count; /* stsz */ int32_t stsz_sample_size; int32_t stsz_sample_count; int32_t *stsz_table; /* stts */ int32_t stts_entry_count; int32_t *stts_sample_count; int32_t *stts_sample_delta; /* stsc */ int32_t stsc_entry_count; int32_t *stsc_first_chunk; int32_t *stsc_samples_per_chunk; int32_t *stsc_sample_desc_index; /* stsc */ int32_t stco_entry_count; int32_t *stco_chunk_offset; /* ctts */ int32_t ctts_entry_count; int32_t *ctts_sample_count; int32_t *ctts_sample_offset; /* esde */ int8_t *decoderConfig; int32_t decoderConfigLen; uint32_t maxBitrate; uint32_t avgBitrate; uint32_t timeScale; uint64_t duration; } mp4ff_track_t; /* mp4 main file structure */ typedef struct { /* stream to read from */ mp4ff_callback_t *stream; int64_t current_position; int32_t moov_read; uint64_t moov_offset; uint64_t moov_size; uint8_t last_atom; uint64_t file_size; uint32_t error; /* mvhd */ int32_t time_scale; int32_t duration; /* incremental track index while reading the file */ int32_t total_tracks; /* track data */ mp4ff_track_t *track[MAX_TRACKS]; /* metadata */ mp4ff_metadata_t tags; } mp4ff_t; #endif /* API */ mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f); mp4ff_t *mp4ff_open_read_metaonly(mp4ff_callback_t *f); void mp4ff_close(mp4ff_t *f); int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_get_sample_duration_use_offsets(const mp4ff_t *f, const int32_t track, const int32_t sample); int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip); int32_t mp4ff_find_sample_use_offsets(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip); int32_t mp4ff_read_sample(mp4ff_t *f, const int track, const int sample, int8_t **audio_buffer, unsigned int *bytes); int32_t mp4ff_read_sample_v2(mp4ff_t *f, const int track, const int sample,unsigned char *buffer);//returns 0 on error, number of bytes read on success, use mp4ff_read_sample_getsize() to check buffer size needed int32_t mp4ff_read_sample_getsize(mp4ff_t *f, const int track, const int sample);//returns 0 on error, buffer size needed for mp4ff_read_sample_v2() on success int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int track, unsigned char** ppBuf, unsigned int* pBufSize); int32_t mp4ff_get_track_type(const mp4ff_t *f, const int track); int32_t mp4ff_total_tracks(const mp4ff_t *f); int32_t mp4ff_num_samples(const mp4ff_t *f, const int track); int32_t mp4ff_time_scale(const mp4ff_t *f, const int track); uint32_t mp4ff_get_avg_bitrate(const mp4ff_t *f, const int32_t track); uint32_t mp4ff_get_max_bitrate(const mp4ff_t *f, const int32_t track); int64_t mp4ff_get_track_duration(const mp4ff_t *f, const int32_t track); //returns (-1) if unknown int64_t mp4ff_get_track_duration_use_offsets(const mp4ff_t *f, const int32_t track); //returns (-1) if unknown uint32_t mp4ff_get_sample_rate(const mp4ff_t *f, const int32_t track); uint32_t mp4ff_get_channel_count(const mp4ff_t * f,const int32_t track); uint32_t mp4ff_get_audio_type(const mp4ff_t * f,const int32_t track); /* metadata */ int mp4ff_meta_get_num_items(const mp4ff_t *f); int mp4ff_meta_get_by_index(const mp4ff_t *f, unsigned int index, char **item, char **value); int mp4ff_meta_get_title(const mp4ff_t *f, char **value); int mp4ff_meta_get_artist(const mp4ff_t *f, char **value); int mp4ff_meta_get_writer(const mp4ff_t *f, char **value); int mp4ff_meta_get_album(const mp4ff_t *f, char **value); int mp4ff_meta_get_date(const mp4ff_t *f, char **value); int mp4ff_meta_get_tool(const mp4ff_t *f, char **value); int mp4ff_meta_get_comment(const mp4ff_t *f, char **value); int mp4ff_meta_get_genre(const mp4ff_t *f, char **value); int mp4ff_meta_get_track(const mp4ff_t *f, char **value); int mp4ff_meta_get_disc(const mp4ff_t *f, char **value); int mp4ff_meta_get_totaltracks(const mp4ff_t *f, char **value); int mp4ff_meta_get_totaldiscs(const mp4ff_t *f, char **value); int mp4ff_meta_get_compilation(const mp4ff_t *f, char **value); int mp4ff_meta_get_tempo(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_coverart(const mp4ff_t *f, char **value); #ifdef __cplusplus } #endif /* __cplusplus */ #endif ocaml-faad-0.5.1/src/mp4ffint.h000066400000000000000000000215771424177474500162230ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4ffint.h,v 1.27 2009/03/09 21:22:22 menno Exp $ **/ #ifndef MP4FF_INTERNAL_H #define MP4FF_INTERNAL_H #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #include #include #define MAX_TRACKS 1024 #define TRACK_UNKNOWN 0 #define TRACK_AUDIO 1 #define TRACK_VIDEO 2 #define TRACK_SYSTEM 3 #define SUBATOMIC 128 /* atoms without subatoms */ #define ATOM_FTYP 129 #define ATOM_MDAT 130 #define ATOM_MVHD 131 #define ATOM_TKHD 132 #define ATOM_TREF 133 #define ATOM_MDHD 134 #define ATOM_VMHD 135 #define ATOM_SMHD 136 #define ATOM_HMHD 137 #define ATOM_STSD 138 #define ATOM_STTS 139 #define ATOM_STSZ 140 #define ATOM_STZ2 141 #define ATOM_STCO 142 #define ATOM_STSC 143 #define ATOM_MP4A 144 #define ATOM_MP4V 145 #define ATOM_MP4S 146 #define ATOM_ESDS 147 #define ATOM_META 148 /* iTunes Metadata box */ #define ATOM_NAME 149 /* iTunes Metadata name box */ #define ATOM_DATA 150 /* iTunes Metadata data box */ #define ATOM_CTTS 151 #define ATOM_FRMA 152 #define ATOM_IVIV 153 #define ATOM_PRIV 154 #define ATOM_USER 155 #define ATOM_KEY 156 #define ATOM_ALBUM_ARTIST 157 #define ATOM_CONTENTGROUP 158 #define ATOM_LYRICS 159 #define ATOM_DESCRIPTION 160 #define ATOM_NETWORK 161 #define ATOM_SHOW 162 #define ATOM_EPISODENAME 163 #define ATOM_SORTTITLE 164 #define ATOM_SORTALBUM 165 #define ATOM_SORTARTIST 166 #define ATOM_SORTALBUMARTIST 167 #define ATOM_SORTWRITER 168 #define ATOM_SORTSHOW 169 #define ATOM_SEASON 170 #define ATOM_EPISODE 171 #define ATOM_PODCAST 172 #define ATOM_UNKNOWN 255 #define ATOM_FREE ATOM_UNKNOWN #define ATOM_SKIP ATOM_UNKNOWN /* atoms with subatoms */ #define ATOM_MOOV 1 #define ATOM_TRAK 2 #define ATOM_EDTS 3 #define ATOM_MDIA 4 #define ATOM_MINF 5 #define ATOM_STBL 6 #define ATOM_UDTA 7 #define ATOM_ILST 8 /* iTunes Metadata list */ #define ATOM_TITLE 9 #define ATOM_ARTIST 10 #define ATOM_WRITER 11 #define ATOM_ALBUM 12 #define ATOM_DATE 13 #define ATOM_TOOL 14 #define ATOM_COMMENT 15 #define ATOM_GENRE1 16 #define ATOM_TRACK 17 #define ATOM_DISC 18 #define ATOM_COMPILATION 19 #define ATOM_GENRE2 20 #define ATOM_TEMPO 21 #define ATOM_COVER 22 #define ATOM_DRMS 23 #define ATOM_SINF 24 #define ATOM_SCHI 25 #if !(defined(_WIN32) || defined(_WIN32_WCE)) #define stricmp strcasecmp #else #define stricmp _stricmp #define strdup _strdup #endif #include "mp4ff.h" /* mp4util.c */ int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size); int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size); uint64_t mp4ff_read_int64(mp4ff_t *f); uint32_t mp4ff_read_int32(mp4ff_t *f); uint32_t mp4ff_read_int24(mp4ff_t *f); uint16_t mp4ff_read_int16(mp4ff_t *f); uint8_t mp4ff_read_char(mp4ff_t *f); int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data); uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f); int64_t mp4ff_position(const mp4ff_t *f); int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position); int32_t mp4ff_truncate(mp4ff_t * f); char * mp4ff_read_string(mp4ff_t * f,uint32_t length); /* mp4atom.c */ static int32_t mp4ff_atom_get_size(const int8_t *data); static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t c1, const int8_t d1, const int8_t a2, const int8_t b2, const int8_t c2, const int8_t d2); static uint8_t mp4ff_atom_name_to_type(const int8_t a, const int8_t b, const int8_t c, const int8_t d); uint64_t mp4ff_atom_read_header(mp4ff_t *f, uint8_t *atom_type, uint8_t *header_size); static int32_t mp4ff_read_stsz(mp4ff_t *f); static int32_t mp4ff_read_esds(mp4ff_t *f); static int32_t mp4ff_read_mp4a(mp4ff_t *f); static int32_t mp4ff_read_stsd(mp4ff_t *f); static int32_t mp4ff_read_stsc(mp4ff_t *f); static int32_t mp4ff_read_stco(mp4ff_t *f); static int32_t mp4ff_read_stts(mp4ff_t *f); #ifdef USE_TAGGING static int32_t mp4ff_read_meta(mp4ff_t *f, const uint64_t size); #endif int32_t mp4ff_atom_read(mp4ff_t *f, const int32_t size, const uint8_t atom_type); /* mp4sample.c */ static int32_t mp4ff_chunk_of_sample(const mp4ff_t *f, const int32_t track, const int32_t sample, int32_t *chunk_sample, int32_t *chunk); static int32_t mp4ff_chunk_to_offset(const mp4ff_t *f, const int32_t track, const int32_t chunk); static int32_t mp4ff_sample_range_size(const mp4ff_t *f, const int32_t track, const int32_t chunk_sample, const int32_t sample); static int32_t mp4ff_sample_to_offset(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_audio_frame_size(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample); #ifdef USE_TAGGING /* mp4meta.c */ static int32_t mp4ff_tag_add_field(mp4ff_metadata_t *tags, const char *item, const char *value, int32_t len); static int32_t mp4ff_tag_set_field(mp4ff_metadata_t *tags, const char *item, const char *value); static int32_t mp4ff_set_metadata_name(mp4ff_t *f, const uint8_t atom_type, char **name); static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const int32_t size); static int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value); int32_t mp4ff_parse_metadata(mp4ff_t *f, const int32_t size); int32_t mp4ff_tag_delete(mp4ff_metadata_t *tags); int32_t mp4ff_meta_get_num_items(const mp4ff_t *f); int32_t mp4ff_meta_get_by_index(const mp4ff_t *f, uint32_t index, char **item, char **value); int32_t mp4ff_meta_get_title(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_artist(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_writer(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_album(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_date(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_tool(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_comment(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_genre(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_track(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_disc(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_compilation(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_tempo(const mp4ff_t *f, char **value); int32_t mp4ff_meta_get_coverart(const mp4ff_t *f, char **value); #endif /* mp4ff.c */ mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f); #ifdef USE_TAGGING mp4ff_t *mp4ff_open_edit(mp4ff_callback_t *f); #endif void mp4ff_close(mp4ff_t *ff); //void mp4ff_track_add(mp4ff_t *f); int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size,int meta_only); int32_t parse_atoms(mp4ff_t *f,int meta_only); int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample); int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample); int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip); int32_t mp4ff_read_sample(mp4ff_t *f, const int32_t track, const int32_t sample, int8_t **audio_buffer, uint32_t *bytes); int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int32_t track, uint8_t** ppBuf, uint32_t* pBufSize); int32_t mp4ff_total_tracks(const mp4ff_t *f); int32_t mp4ff_time_scale(const mp4ff_t *f, const int32_t track); int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track); uint32_t mp4ff_meta_genre_to_index(const char * genrestr);//returns 1-based index, 0 if not found const char * mp4ff_meta_index_to_genre(uint32_t idx);//returns pointer to static string #ifdef __cplusplus } #endif /* __cplusplus */ #endif ocaml-faad-0.5.1/src/mp4meta.c000066400000000000000000000352651424177474500160350ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4meta.c,v 1.22 2009/03/09 21:22:22 menno Exp $ **/ #ifdef USE_TAGGING #include #include #include #include "mp4ffint.h" static int32_t mp4ff_tag_add_field(mp4ff_metadata_t *tags, const char *item, const char *value, int32_t len) { void *backup = (void *)tags->tags; if (!item || (item && !*item) || !value) return 0; tags->tags = (mp4ff_tag_t*)realloc(tags->tags, (tags->count+1) * sizeof(mp4ff_tag_t)); if (!tags->tags) { if (backup) free(backup); return 0; } else { tags->tags[tags->count].item = strdup(item); tags->tags[tags->count].len = len; if (len >= 0) { tags->tags[tags->count].value = malloc(len + 1); if (tags->tags[tags->count].value != NULL) { memcpy(tags->tags[tags->count].value, value, len); tags->tags[tags->count].value[len] = 0; } } else { tags->tags[tags->count].value = strdup(value); } if (!tags->tags[tags->count].item || !tags->tags[tags->count].value) { if (!tags->tags[tags->count].item) free (tags->tags[tags->count].item); if (!tags->tags[tags->count].value) free (tags->tags[tags->count].value); tags->tags[tags->count].item = NULL; tags->tags[tags->count].value = NULL; tags->tags[tags->count].len = 0; return 0; } tags->count++; return 1; } } static int32_t mp4ff_tag_set_field(mp4ff_metadata_t *tags, const char *item, const char *value) { unsigned int i; if (!item || (item && !*item) || !value) return 0; for (i = 0; i < tags->count; i++) { if (!stricmp(tags->tags[i].item, item)) { free(tags->tags[i].value); tags->tags[i].value = strdup(value); return 1; } } return mp4ff_tag_add_field(tags, item, value, 0); } int32_t mp4ff_tag_delete(mp4ff_metadata_t *tags) { uint32_t i; for (i = 0; i < tags->count; i++) { if (tags->tags[i].item) free(tags->tags[i].item); if (tags->tags[i].value) free(tags->tags[i].value); } if (tags->tags) free(tags->tags); tags->tags = NULL; tags->count = 0; return 0; } static const char* ID3v1GenreList[] = { "Blues", "Classic Rock", "Country", "Dance", "Disco", "Funk", "Grunge", "Hip-Hop", "Jazz", "Metal", "New Age", "Oldies", "Other", "Pop", "R&B", "Rap", "Reggae", "Rock", "Techno", "Industrial", "Alternative", "Ska", "Death Metal", "Pranks", "Soundtrack", "Euro-Techno", "Ambient", "Trip-Hop", "Vocal", "Jazz+Funk", "Fusion", "Trance", "Classical", "Instrumental", "Acid", "House", "Game", "Sound Clip", "Gospel", "Noise", "AlternRock", "Bass", "Soul", "Punk", "Space", "Meditative", "Instrumental Pop", "Instrumental Rock", "Ethnic", "Gothic", "Darkwave", "Techno-Industrial", "Electronic", "Pop-Folk", "Eurodance", "Dream", "Southern Rock", "Comedy", "Cult", "Gangsta", "Top 40", "Christian Rap", "Pop/Funk", "Jungle", "Native American", "Cabaret", "New Wave", "Psychadelic", "Rave", "Showtunes", "Trailer", "Lo-Fi", "Tribal", "Acid Punk", "Acid Jazz", "Polka", "Retro", "Musical", "Rock & Roll", "Hard Rock", "Folk", "Folk/Rock", "National Folk", "Swing", "Fast-Fusion", "Bebob", "Latin", "Revival", "Celtic", "Bluegrass", "Avantgarde", "Gothic Rock", "Progressive Rock", "Psychedelic Rock", "Symphonic Rock", "Slow Rock", "Big Band", "Chorus", "Easy Listening", "Acoustic", "Humour", "Speech", "Chanson", "Opera", "Chamber Music", "Sonata", "Symphony", "Booty Bass", "Primus", "Porn Groove", "Satire", "Slow Jam", "Club", "Tango", "Samba", "Folklore", "Ballad", "Power Ballad", "Rhythmic Soul", "Freestyle", "Duet", "Punk Rock", "Drum Solo", "A capella", "Euro-House", "Dance Hall", "Goa", "Drum & Bass", "Club House", "Hardcore", "Terror", "Indie", "BritPop", "NegerPunk", "Polsk Punk", "Beat", "Christian Gangsta", "Heavy Metal", "Black Metal", "Crossover", "Contemporary C", "Christian Rock", "Merengue", "Salsa", "Thrash Metal", "Anime", "JPop", "SynthPop", }; uint32_t mp4ff_meta_genre_to_index(const char * genrestr) { unsigned n; for(n=0;n0 && idx<=sizeof(ID3v1GenreList)/sizeof(ID3v1GenreList[0])) { return ID3v1GenreList[idx-1]; } else { return 0; } } static int32_t TrackToString(char** str, const uint16_t track, const uint16_t totalTracks) { char temp[32]; sprintf(temp, "%.5u of %.5u", track, totalTracks); *str = strdup(temp); return 0; } static int32_t mp4ff_set_metadata_name(mp4ff_t *f, const uint8_t atom_type, char **name) { static char *tag_names[] = { "unknown", "title", "artist", "writer", "album", "date", "tool", "comment", "genre", "track", "disc", "compilation", "genre", "tempo", "cover", "album_artist", "contentgroup", "lyrics", "description", "network", "show", "episodename", "sorttitle", "sortalbum", "sortartist", "sortalbumartist", "sortwriter", "sortshow", "season", "episode", "podcast" }; uint8_t tag_idx = 0; switch (atom_type) { case ATOM_TITLE: tag_idx = 1; break; case ATOM_ARTIST: tag_idx = 2; break; case ATOM_WRITER: tag_idx = 3; break; case ATOM_ALBUM: tag_idx = 4; break; case ATOM_DATE: tag_idx = 5; break; case ATOM_TOOL: tag_idx = 6; break; case ATOM_COMMENT: tag_idx = 7; break; case ATOM_GENRE1: tag_idx = 8; break; case ATOM_TRACK: tag_idx = 9; break; case ATOM_DISC: tag_idx = 10; break; case ATOM_COMPILATION: tag_idx = 11; break; case ATOM_GENRE2: tag_idx = 12; break; case ATOM_TEMPO: tag_idx = 13; break; case ATOM_COVER: tag_idx = 14; break; case ATOM_ALBUM_ARTIST: tag_idx = 15; break; case ATOM_CONTENTGROUP: tag_idx = 16; break; case ATOM_LYRICS: tag_idx = 17; break; case ATOM_DESCRIPTION: tag_idx = 18; break; case ATOM_NETWORK: tag_idx = 19; break; case ATOM_SHOW: tag_idx = 20; break; case ATOM_EPISODENAME: tag_idx = 21; break; case ATOM_SORTTITLE: tag_idx = 22; break; case ATOM_SORTALBUM: tag_idx = 23; break; case ATOM_SORTARTIST: tag_idx = 24; break; case ATOM_SORTALBUMARTIST: tag_idx = 25; break; case ATOM_SORTWRITER: tag_idx = 26; break; case ATOM_SORTSHOW: tag_idx = 27; break; case ATOM_SEASON: tag_idx = 28; break; case ATOM_EPISODE: tag_idx = 29; break; case ATOM_PODCAST: tag_idx = 30; break; default: tag_idx = 0; break; } *name = strdup(tag_names[tag_idx]); return 0; } static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const int32_t size) { uint8_t atom_type; uint8_t header_size = 0; uint64_t subsize, sumsize = 0; char * name = NULL; char * data = NULL; uint32_t done = 0; uint32_t len = 0; while (sumsize < size && !f->stream->read_error) /* CVE-2017-9222 */ { uint64_t destpos; subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); destpos = mp4ff_position(f)+subsize-header_size; if (!done) { if (atom_type == ATOM_DATA) { mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ mp4ff_read_int32(f); /* reserved */ /* some need special attention */ if (parent_atom_type == ATOM_GENRE2 || parent_atom_type == ATOM_TEMPO) { if (subsize - header_size >= 8 + 2) { uint16_t val = mp4ff_read_int16(f); if (parent_atom_type == ATOM_TEMPO) { char temp[16]; sprintf(temp, "%.5u BPM", val); mp4ff_tag_add_field(&(f->tags), "tempo", temp, -1); } else { const char * temp = mp4ff_meta_index_to_genre(val); if (temp) { mp4ff_tag_add_field(&(f->tags), "genre", temp, -1); } } done = 1; } } else if (parent_atom_type == ATOM_TRACK || parent_atom_type == ATOM_DISC) { /* if (!done && subsize - header_size >= 8 + 8) */ /* modified by AJS */ if ( !done && (subsize - header_size) >= (sizeof(char) + sizeof(uint8_t)*3 + sizeof(uint32_t) + /* version + flags + reserved */ + (parent_atom_type == ATOM_TRACK ? sizeof(uint16_t) : 0) /* leading uint16_t if ATOM_TRACK */ + sizeof(uint16_t) /* track / disc */ + sizeof(uint16_t)) /* totaltracks / totaldiscs */ ) { uint16_t index,total; char temp[32]; mp4ff_read_int16(f); index = mp4ff_read_int16(f); total = mp4ff_read_int16(f); if (parent_atom_type == ATOM_TRACK) mp4ff_read_int16(f); sprintf(temp,"%d",index); mp4ff_tag_add_field(&(f->tags), parent_atom_type == ATOM_TRACK ? "track" : "disc", temp, -1); if (total>0) { sprintf(temp,"%d",total); mp4ff_tag_add_field(&(f->tags), parent_atom_type == ATOM_TRACK ? "totaltracks" : "totaldiscs", temp, -1); } done = 1; } } else { if (data) {free(data);data = NULL;} data = mp4ff_read_string(f,(uint32_t)(subsize-(header_size+8))); len = (uint32_t)(subsize-(header_size+8)); } } else if (atom_type == ATOM_NAME) { if (!done) { mp4ff_read_char(f); /* version */ mp4ff_read_int24(f); /* flags */ if (name) free(name); name = mp4ff_read_string(f,(uint32_t)(subsize-(header_size+4))); } } mp4ff_set_position(f, destpos); sumsize += subsize; } } if (data) { if (!done) { if (name == NULL) mp4ff_set_metadata_name(f, parent_atom_type, &name); if (name) mp4ff_tag_add_field(&(f->tags), name, data, len); } free(data); } if (name) free(name); return 1; } int32_t mp4ff_parse_metadata(mp4ff_t *f, const int32_t size) { uint64_t subsize, sumsize = 0; uint8_t atom_type; uint8_t header_size = 0; while (sumsize < size) { subsize = mp4ff_atom_read_header(f, &atom_type, &header_size); if (subsize == 0) break; mp4ff_parse_tag(f, atom_type, (uint32_t)(subsize-header_size)); sumsize += subsize; } return 0; } /* find a metadata item by name */ /* returns 0 if item found, 1 if no such item */ static int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value) { uint32_t i; for (i = 0; i < f->tags.count; i++) { if (!stricmp(f->tags.tags[i].item, item)) { *value = strdup(f->tags.tags[i].value); return 1; } } *value = NULL; /* not found */ return 0; } static int32_t mp4ff_meta_find_by_name_and_return_len(const mp4ff_t *f, const char *item, char **value) { uint32_t i; for (i = 0; i < f->tags.count; i++) { if (!stricmp(f->tags.tags[i].item, item)) { uint32_t len = f->tags.tags[i].len; *value = NULL; *value = malloc(len); if (*value != NULL) { memcpy(*value, f->tags.tags[i].value, len); return len; } } } *value = NULL; /* not found */ return 0; } int32_t mp4ff_meta_get_num_items(const mp4ff_t *f) { return f->tags.count; } int32_t mp4ff_meta_get_by_index(const mp4ff_t *f, uint32_t index, char **item, char **value) { if (index >= f->tags.count) { *item = NULL; *value = NULL; return 0; } else { *item = strdup(f->tags.tags[index].item); *value = strdup(f->tags.tags[index].value); return 1; } } int32_t mp4ff_meta_get_title(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "title", value); } int32_t mp4ff_meta_get_artist(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "artist", value); } int32_t mp4ff_meta_get_writer(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "writer", value); } int32_t mp4ff_meta_get_album(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "album", value); } int32_t mp4ff_meta_get_album_artist(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "album_artist", value); } int32_t mp4ff_meta_get_date(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "date", value); } int32_t mp4ff_meta_get_tool(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "tool", value); } int32_t mp4ff_meta_get_comment(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "comment", value); } int32_t mp4ff_meta_get_genre(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "genre", value); } int32_t mp4ff_meta_get_track(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "track", value); } int32_t mp4ff_meta_get_totaltracks(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "totaltracks", value); } int32_t mp4ff_meta_get_disc(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "disc", value); } int32_t mp4ff_meta_get_totaldiscs(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "totaldiscs", value); } int32_t mp4ff_meta_get_compilation(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "compilation", value); } int32_t mp4ff_meta_get_tempo(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name(f, "tempo", value); } int32_t mp4ff_meta_get_coverart(const mp4ff_t *f, char **value) { return mp4ff_meta_find_by_name_and_return_len(f, "cover", value); } #endif ocaml-faad-0.5.1/src/mp4sample.c000066400000000000000000000106711424177474500163620ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4sample.c,v 1.20 2007/11/01 12:33:29 menno Exp $ **/ #include #include "mp4ffint.h" static int32_t mp4ff_chunk_of_sample(const mp4ff_t *f, const int32_t track, const int32_t sample, int32_t *chunk_sample, int32_t *chunk) { int32_t total_entries = 0; int32_t chunk2entry; int32_t chunk1, chunk2, chunk1samples, range_samples, total = 0; if (f->track[track] == NULL) { return -1; } total_entries = f->track[track]->stsc_entry_count; chunk1 = 1; chunk1samples = 0; chunk2entry = 0; do { chunk2 = f->track[track]->stsc_first_chunk[chunk2entry]; *chunk = chunk2 - chunk1; range_samples = *chunk * chunk1samples; if (sample < total + range_samples) break; chunk1samples = f->track[track]->stsc_samples_per_chunk[chunk2entry]; chunk1 = chunk2; if(chunk2entry < total_entries) { chunk2entry++; total += range_samples; } } while (chunk2entry < total_entries); if (chunk1samples) *chunk = (sample - total) / chunk1samples + chunk1; else *chunk = 1; *chunk_sample = total + (*chunk - chunk1) * chunk1samples; return 0; } static int32_t mp4ff_chunk_to_offset(const mp4ff_t *f, const int32_t track, const int32_t chunk) { const mp4ff_track_t * p_track = f->track[track]; if (p_track->stco_entry_count && (chunk > p_track->stco_entry_count)) { return p_track->stco_chunk_offset[p_track->stco_entry_count - 1]; } else if (p_track->stco_entry_count) { return p_track->stco_chunk_offset[chunk - 1]; } else { return 8; } return 0; } static int32_t mp4ff_sample_range_size(const mp4ff_t *f, const int32_t track, const int32_t chunk_sample, const int32_t sample) { int32_t i, total; const mp4ff_track_t * p_track = f->track[track]; if (p_track->stsz_sample_size) { return (sample - chunk_sample) * p_track->stsz_sample_size; } else { if (sample>=p_track->stsz_sample_count) return 0;//error for(i = chunk_sample, total = 0; i < sample; i++) { total += p_track->stsz_table[i]; } } return total; } static int32_t mp4ff_sample_to_offset(const mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t chunk, chunk_sample, chunk_offset1, chunk_offset2; mp4ff_chunk_of_sample(f, track, sample, &chunk_sample, &chunk); chunk_offset1 = mp4ff_chunk_to_offset(f, track, chunk); chunk_offset2 = chunk_offset1 + mp4ff_sample_range_size(f, track, chunk_sample, sample); return chunk_offset2; } int32_t mp4ff_audio_frame_size(const mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t bytes; const mp4ff_track_t * p_track = f->track[track]; if (p_track->stsz_sample_size) { bytes = p_track->stsz_sample_size; } else { bytes = p_track->stsz_table[sample]; } return bytes; } int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample) { int32_t offset; offset = mp4ff_sample_to_offset(f, track, sample); mp4ff_set_position(f, offset); return 0; } ocaml-faad-0.5.1/src/mp4tagupdate.c000066400000000000000000000405131424177474500170550ustar00rootroot00000000000000#include #include #include "mp4ffint.h" #ifdef USE_TAGGING static uint32_t fix_byte_order_32(uint32_t src) { uint32_t result; uint32_t a, b, c, d; int8_t data[4]; memcpy(data,&src,sizeof(src)); a = (uint8_t)data[0]; b = (uint8_t)data[1]; c = (uint8_t)data[2]; d = (uint8_t)data[3]; result = (a<<24) | (b<<16) | (c<<8) | d; return (uint32_t)result; } static uint16_t fix_byte_order_16(uint16_t src) { uint16_t result; uint16_t a, b; int8_t data[2]; memcpy(data,&src,sizeof(src)); a = (uint8_t)data[0]; b = (uint8_t)data[1]; result = (a<<8) | b; return (uint16_t)result; } typedef struct { void * data; unsigned written; unsigned allocated; unsigned error; } membuffer; unsigned membuffer_write(membuffer * buf,const void * ptr,unsigned bytes) { unsigned dest_size = buf->written + bytes; if (buf->error) return 0; if (dest_size > buf->allocated) { do { buf->allocated <<= 1; } while(dest_size > buf->allocated); { void * newptr = realloc(buf->data,buf->allocated); if (newptr==0) { free(buf->data); buf->data = 0; buf->error = 1; return 0; } buf->data = newptr; } } if (ptr) memcpy((char*)buf->data + buf->written,ptr,bytes); buf->written += bytes; return bytes; } #define membuffer_write_data membuffer_write unsigned membuffer_write_int32(membuffer * buf,uint32_t data) { uint8_t temp[4] = {(uint8_t)(data>>24),(uint8_t)(data>>16),(uint8_t)(data>>8),(uint8_t)data}; return membuffer_write_data(buf,temp,4); } unsigned membuffer_write_int24(membuffer * buf,uint32_t data) { uint8_t temp[3] = {(uint8_t)(data>>16),(uint8_t)(data>>8),(uint8_t)data}; return membuffer_write_data(buf,temp,3); } unsigned membuffer_write_int16(membuffer * buf,uint16_t data) { uint8_t temp[2] = {(uint8_t)(data>>8),(uint8_t)data}; return membuffer_write_data(buf,temp,2); } unsigned membuffer_write_atom_name(membuffer * buf,const char * data) { return membuffer_write_data(buf,data,4)==4 ? 1 : 0; } void membuffer_write_atom(membuffer * buf,const char * name,unsigned size,const void * data) { membuffer_write_int32(buf,size + 8); membuffer_write_atom_name(buf,name); membuffer_write_data(buf,data,size); } unsigned membuffer_write_string(membuffer * buf,const char * data) { return membuffer_write_data(buf,data,strlen(data)); } unsigned membuffer_write_int8(membuffer * buf,uint8_t data) { return membuffer_write_data(buf,&data,1); } void * membuffer_get_ptr(const membuffer * buf) { return buf->data; } unsigned membuffer_get_size(const membuffer * buf) { return buf->written; } unsigned membuffer_error(const membuffer * buf) { return buf->error; } void membuffer_set_error(membuffer * buf) {buf->error = 1;} unsigned membuffer_transfer_from_file(membuffer * buf,mp4ff_t * src,unsigned bytes) { unsigned oldsize; void * bufptr; oldsize = membuffer_get_size(buf); if (membuffer_write_data(buf,0,bytes) != bytes) return 0; bufptr = membuffer_get_ptr(buf); if (bufptr==0) return 0; if ((unsigned)mp4ff_read_data(src,(int8_t *)bufptr + oldsize,bytes)!=bytes) { membuffer_set_error(buf); return 0; } return bytes; } membuffer * membuffer_create() { const unsigned initial_size = 256; membuffer * buf = (membuffer *) malloc(sizeof(membuffer)); buf->data = malloc(initial_size); buf->written = 0; buf->allocated = initial_size; buf->error = buf->data == 0 ? 1 : 0; return buf; } void membuffer_free(membuffer * buf) { if (buf->data) free(buf->data); free(buf); } void * membuffer_detach(membuffer * buf) { void * ret; if (buf->error) return 0; ret = realloc(buf->data,buf->written); if (ret == 0) free(buf->data); buf->data = 0; buf->error = 1; return ret; } #if 0 /* metadata tag structure */ typedef struct { char *item; char *value; } mp4ff_tag_t; /* metadata list structure */ typedef struct { mp4ff_tag_t *tags; uint32_t count; } mp4ff_metadata_t; #endif typedef struct { const char * atom; const char * name; } stdmeta_entry; static stdmeta_entry stdmetas[] = { {"\xA9" "nam","title"}, {"\xA9" "ART","artist"}, {"\xA9" "wrt","writer"}, {"\xA9" "alb","album"}, {"\xA9" "day","date"}, {"\xA9" "too","tool"}, {"\xA9" "cmt","comment"}, // {"\xA9" "gen","genre"}, {"cpil","compilation"}, // {"trkn","track"}, // {"disk","disc"}, // {"gnre","genre"}, {"covr","cover"}, /* added by AJS */ {"aART","album_artist"}, }; static const char* find_standard_meta(const char * name) //returns atom name if found, 0 if not { unsigned n; for(n=0;ncount); memset(mask,0,data->count); { const char * tracknumber_ptr = 0, * totaltracks_ptr = 0; const char * discnumber_ptr = 0, * totaldiscs_ptr = 0; const char * genre_ptr = 0, * tempo_ptr = 0; for(metaptr = 0; metaptr < data->count; metaptr++) { mp4ff_tag_t * tag = &data->tags[metaptr]; if (!stricmp(tag->item,"tracknumber") || !stricmp(tag->item,"track")) { if (tracknumber_ptr==0) tracknumber_ptr = tag->value; mask[metaptr] = 1; } else if (!stricmp(tag->item,"totaltracks")) { if (totaltracks_ptr==0) totaltracks_ptr = tag->value; mask[metaptr] = 1; } else if (!stricmp(tag->item,"discnumber") || !stricmp(tag->item,"disc")) { if (discnumber_ptr==0) discnumber_ptr = tag->value; mask[metaptr] = 1; } else if (!stricmp(tag->item,"totaldiscs")) { if (totaldiscs_ptr==0) totaldiscs_ptr = tag->value; mask[metaptr] = 1; } else if (!stricmp(tag->item,"genre")) { if (genre_ptr==0) genre_ptr = tag->value; mask[metaptr] = 1; } else if (!stricmp(tag->item,"tempo")) { if (tempo_ptr==0) tempo_ptr = tag->value; mask[metaptr] = 1; } } if (tracknumber_ptr) membuffer_write_track_tag(buf,"trkn",myatoi(tracknumber_ptr),myatoi(totaltracks_ptr)); if (discnumber_ptr) membuffer_write_track_tag(buf,"disk",myatoi(discnumber_ptr),myatoi(totaldiscs_ptr)); if (tempo_ptr) membuffer_write_int16_tag(buf,"tmpo",(uint16_t)myatoi(tempo_ptr)); if (genre_ptr) { uint32_t index = mp4ff_meta_genre_to_index(genre_ptr); if (index==0) membuffer_write_std_tag(buf,"\u0040gen",genre_ptr); else membuffer_write_int16_tag(buf,"gnre",(uint16_t)index); } } for(metaptr = 0; metaptr < data->count; metaptr++) { if (!mask[metaptr]) { mp4ff_tag_t * tag = &data->tags[metaptr]; const char * std_meta_atom = find_standard_meta(tag->item); if (std_meta_atom) { membuffer_write_std_tag(buf,std_meta_atom,tag->value); } else { membuffer_write_custom_tag(buf,tag->item,tag->value); } } } free(mask); if (membuffer_error(buf)) { membuffer_free(buf); return 0; } *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); return 1; } static uint32_t find_atom(mp4ff_t * f,uint64_t base,uint32_t size,const char * name) { uint32_t remaining = size; uint64_t atom_offset = base; for(;;) { char atom_name[4]; uint32_t atom_size; mp4ff_set_position(f,atom_offset); if (remaining < 8) break; atom_size = mp4ff_read_int32(f); if (atom_size > remaining || atom_size < 8) break; mp4ff_read_data(f,(int8_t *)atom_name,4); if (!memcmp(atom_name,name,4)) { mp4ff_set_position(f,atom_offset); return 1; } remaining -= atom_size; atom_offset += atom_size; } return 0; } static uint32_t find_atom_v2(mp4ff_t * f,uint64_t base,uint32_t size,const char * name,uint32_t extraheaders,const char * name_inside) { uint64_t first_base = (uint64_t)(-1); while(find_atom(f,base,size,name))//try to find atom with atom in it { uint64_t mybase = mp4ff_position(f); uint32_t mysize = mp4ff_read_int32(f); if (first_base == (uint64_t)(-1)) first_base = mybase; if (mysize < 8 + extraheaders) break; if (find_atom(f,mybase+(8+extraheaders),mysize-(8+extraheaders),name_inside)) { mp4ff_set_position(f,mybase); return 2; } base += mysize; if (size<=mysize) {size=0;break;} size -= mysize; } if (first_base != (uint64_t)(-1))//wanted atom inside not found { mp4ff_set_position(f,first_base); return 1; } else return 0; } static uint32_t create_meta(const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) { membuffer * buf; uint32_t ilst_size; void * ilst_buffer; if (!create_ilst(data,&ilst_buffer,&ilst_size)) return 0; buf = membuffer_create(); membuffer_write_int32(buf,0); membuffer_write_atom(buf,"ilst",ilst_size,ilst_buffer); free(ilst_buffer); *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); return 1; } static uint32_t create_udta(const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) { membuffer * buf; uint32_t meta_size; void * meta_buffer; if (!create_meta(data,&meta_buffer,&meta_size)) return 0; buf = membuffer_create(); membuffer_write_atom(buf,"meta",meta_size,meta_buffer); free(meta_buffer); *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); return 1; } static uint32_t modify_moov(mp4ff_t * f,const mp4ff_metadata_t * data,void ** out_buffer,uint32_t * out_size) { uint64_t total_base = f->moov_offset + 8; uint32_t total_size = (uint32_t)(f->moov_size - 8); uint64_t udta_offset,meta_offset,ilst_offset; uint32_t udta_size, meta_size, ilst_size; uint32_t new_ilst_size; void * new_ilst_buffer; int8_t * p_out; int32_t size_delta; if (!find_atom_v2(f,total_base,total_size,"udta",0,"meta")) { membuffer * buf; void * new_udta_buffer; uint32_t new_udta_size; if (!create_udta(data,&new_udta_buffer,&new_udta_size)) return 0; buf = membuffer_create(); mp4ff_set_position(f,total_base); membuffer_transfer_from_file(buf,f,total_size); membuffer_write_atom(buf,"udta",new_udta_size,new_udta_buffer); free(new_udta_buffer); *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); return 1; } else { udta_offset = mp4ff_position(f); udta_size = mp4ff_read_int32(f); if (!find_atom_v2(f,udta_offset+8,udta_size-8,"meta",4,"ilst")) { membuffer * buf; void * new_meta_buffer; uint32_t new_meta_size; if (!create_meta(data,&new_meta_buffer,&new_meta_size)) return 0; buf = membuffer_create(); mp4ff_set_position(f,total_base); membuffer_transfer_from_file(buf,f,(uint32_t)(udta_offset - total_base)); membuffer_write_int32(buf,udta_size + 8 + new_meta_size); membuffer_write_atom_name(buf,"udta"); membuffer_transfer_from_file(buf,f,udta_size); membuffer_write_atom(buf,"meta",new_meta_size,new_meta_buffer); free(new_meta_buffer); *out_size = membuffer_get_size(buf); *out_buffer = membuffer_detach(buf); membuffer_free(buf); return 1; } meta_offset = mp4ff_position(f); meta_size = mp4ff_read_int32(f); if (!find_atom(f,meta_offset+12,meta_size-12,"ilst")) return 0;//shouldn't happen, find_atom_v2 above takes care of it ilst_offset = mp4ff_position(f); ilst_size = mp4ff_read_int32(f); if (!create_ilst(data,&new_ilst_buffer,&new_ilst_size)) return 0; size_delta = new_ilst_size - (ilst_size - 8); *out_size = total_size + size_delta; *out_buffer = malloc(*out_size); if (*out_buffer == 0) { free(new_ilst_buffer); return 0; } p_out = (int8_t*)*out_buffer; mp4ff_set_position(f,total_base); mp4ff_read_data(f,p_out,(uint32_t)(udta_offset - total_base )); p_out += (uint32_t)(udta_offset - total_base ); *(uint32_t*)p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); p_out += 4; mp4ff_read_data(f,p_out,4); p_out += 4; mp4ff_read_data(f,p_out,(uint32_t)(meta_offset - udta_offset - 8)); p_out += (uint32_t)(meta_offset - udta_offset - 8); *(uint32_t*)p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); p_out += 4; mp4ff_read_data(f,p_out,4); p_out += 4; mp4ff_read_data(f,p_out,(uint32_t)(ilst_offset - meta_offset - 8)); p_out += (uint32_t)(ilst_offset - meta_offset - 8); *(uint32_t*)p_out = fix_byte_order_32(mp4ff_read_int32(f) + size_delta); p_out += 4; mp4ff_read_data(f,p_out,4); p_out += 4; memcpy(p_out,new_ilst_buffer,new_ilst_size); p_out += new_ilst_size; mp4ff_set_position(f,ilst_offset + ilst_size); mp4ff_read_data(f,p_out,(uint32_t)(total_size - (ilst_offset - total_base) - ilst_size)); free(new_ilst_buffer); } return 1; } int32_t mp4ff_meta_update(mp4ff_callback_t *f,const mp4ff_metadata_t * data) { void * new_moov_data; uint32_t new_moov_size; mp4ff_t *ff = malloc(sizeof(mp4ff_t)); memset(ff, 0, sizeof(mp4ff_t)); ff->stream = f; mp4ff_set_position(ff,0); parse_atoms(ff,1); if (!modify_moov(ff,data,&new_moov_data,&new_moov_size)) { mp4ff_close(ff); return 0; } /* copy moov atom to end of the file */ if (ff->last_atom != ATOM_MOOV) { char *free_data = "free"; /* rename old moov to free */ mp4ff_set_position(ff, ff->moov_offset + 4); mp4ff_write_data(ff, (int8_t *)free_data, 4); mp4ff_set_position(ff, ff->file_size); mp4ff_write_int32(ff,new_moov_size + 8); mp4ff_write_data(ff,(int8_t *)"moov",4); mp4ff_write_data(ff, new_moov_data, new_moov_size); } else { mp4ff_set_position(ff, ff->moov_offset); mp4ff_write_int32(ff,new_moov_size + 8); mp4ff_write_data(ff,(int8_t *)"moov",4); mp4ff_write_data(ff, new_moov_data, new_moov_size); } mp4ff_truncate(ff); mp4ff_close(ff); return 1; } #endif ocaml-faad-0.5.1/src/mp4util.c000066400000000000000000000103611424177474500160520ustar00rootroot00000000000000/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. ** ** $Id: mp4util.c,v 1.20 2007/11/01 12:33:29 menno Exp $ **/ #include "mp4ffint.h" #include int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size) { int32_t result = 1; result = f->stream->read(f->stream->user_data, data, size); if (result < size) f->stream->read_error++; f->current_position += size; return result; } int32_t mp4ff_truncate(mp4ff_t * f) { return f->stream->truncate(f->stream->user_data); } int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size) { int32_t result = 1; result = f->stream->write(f->stream->user_data, data, size); f->current_position += size; return result; } int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data) { uint32_t result; uint32_t a, b, c, d; int8_t temp[4]; *(uint32_t*)temp = data; a = (uint8_t)temp[0]; b = (uint8_t)temp[1]; c = (uint8_t)temp[2]; d = (uint8_t)temp[3]; result = (a<<24) | (b<<16) | (c<<8) | d; return mp4ff_write_data(f,(int8_t*)&result,sizeof(result)); } int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position) { f->stream->seek(f->stream->user_data, position); f->current_position = position; return 0; } int64_t mp4ff_position(const mp4ff_t *f) { return f->current_position; } uint64_t mp4ff_read_int64(mp4ff_t *f) { int8_t data[8]; uint64_t result = 0; int8_t i; mp4ff_read_data(f, data, 8); for (i = 0; i < 8; i++) { result |= ((uint64_t)data[i]) << ((7 - i) * 8); } return result; } uint32_t mp4ff_read_int32(mp4ff_t *f) { uint32_t result; uint32_t a, b, c, d; int8_t data[4]; mp4ff_read_data(f, data, 4); a = (uint8_t)data[0]; b = (uint8_t)data[1]; c = (uint8_t)data[2]; d = (uint8_t)data[3]; result = (a<<24) | (b<<16) | (c<<8) | d; return (uint32_t)result; } uint32_t mp4ff_read_int24(mp4ff_t *f) { uint32_t result; uint32_t a, b, c; int8_t data[4]; mp4ff_read_data(f, data, 3); a = (uint8_t)data[0]; b = (uint8_t)data[1]; c = (uint8_t)data[2]; result = (a<<16) | (b<<8) | c; return (uint32_t)result; } uint16_t mp4ff_read_int16(mp4ff_t *f) { uint32_t result; uint32_t a, b; int8_t data[2]; mp4ff_read_data(f, data, 2); a = (uint8_t)data[0]; b = (uint8_t)data[1]; result = (a<<8) | b; return (uint16_t)result; } char * mp4ff_read_string(mp4ff_t * f,uint32_t length) { char * str = (char*)malloc(length + 1); if (str!=0) { if ((uint32_t)mp4ff_read_data(f,(int8_t *)str,length)!=length) { free(str); str = 0; } else { str[length] = 0; } } return str; } uint8_t mp4ff_read_char(mp4ff_t *f) { int8_t output; mp4ff_read_data(f, &output, 1); return output; } uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f) { uint8_t b; uint8_t numBytes = 0; uint32_t length = 0; do { b = mp4ff_read_char(f); numBytes++; length = (length << 7) | (b & 0x7F); } while ((b & 0x80) && numBytes < 4); return length; }