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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Amendment 2 of ISO/IEC 14496-15 (AVC file format) is defining a new structure for fragmented MP4 called "avc3". The principal difference between AVC1 and AVC3 is the location of the codec initialisation data (e.g. SPS, PPS). In AVC1 this data is placed in the initial MOOV box (moov.trak.mdia.minf.stbl.stsd.avc1) but in AVC3 this data goes in the first sample of every fragment (i.e. the first sample in each mdat box). The principal reason for avc3 is to make it easier for client implementations, because it removes the requirement to insert the SPS+PPS in to the decoder pipeline every time there is a representation change. This commit adds support for the "avc3" atom, which is almost identical to the "avc1" atom, except it does not contain any SPS or PPS data. https://bugzilla.gnome.org/show_bug.cgi?id=702004
199 lines
7.9 KiB
C
199 lines
7.9 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "qtdemux_types.h"
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#include "qtdemux_dump.h"
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#include "qtdemux_fourcc.h"
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static const QtNodeType qt_node_types[] = {
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{FOURCC_moov, "movie", QT_FLAG_CONTAINER,},
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{FOURCC_mvhd, "movie header", 0,
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qtdemux_dump_mvhd},
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{FOURCC_clip, "clipping", QT_FLAG_CONTAINER,},
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{FOURCC_trak, "track", QT_FLAG_CONTAINER,},
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{FOURCC_udta, "user data", QT_FLAG_CONTAINER,}, /* special container */
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{FOURCC_ctab, "color table", 0,},
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{FOURCC_tkhd, "track header", 0,
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qtdemux_dump_tkhd},
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{FOURCC_crgn, "clipping region", 0,},
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{FOURCC_matt, "track matte", QT_FLAG_CONTAINER,},
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{FOURCC_kmat, "compressed matte", 0,},
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{FOURCC_edts, "edit", QT_FLAG_CONTAINER,},
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{FOURCC_elst, "edit list", 0,
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qtdemux_dump_elst},
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{FOURCC_load, "track load settings", 0,},
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{FOURCC_tref, "track reference", QT_FLAG_CONTAINER,},
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{FOURCC_imap, "track input map", QT_FLAG_CONTAINER,},
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{FOURCC___in, "track input", 0,}, /* special container */
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{FOURCC___ty, "input type", 0,},
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{FOURCC_mdia, "media", QT_FLAG_CONTAINER},
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{FOURCC_mdhd, "media header", 0,
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qtdemux_dump_mdhd},
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{FOURCC_hdlr, "handler reference", 0,
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qtdemux_dump_hdlr},
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{FOURCC_minf, "media information", QT_FLAG_CONTAINER},
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{FOURCC_vmhd, "video media information", 0,
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qtdemux_dump_vmhd},
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{FOURCC_smhd, "sound media information", 0},
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{FOURCC_gmhd, "base media information header", 0},
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{FOURCC_gmin, "base media info", 0},
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{FOURCC_dinf, "data information", QT_FLAG_CONTAINER},
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{FOURCC_dref, "data reference", 0,
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qtdemux_dump_dref},
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{FOURCC_stbl, "sample table", QT_FLAG_CONTAINER},
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{FOURCC_stsd, "sample description", 0,
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qtdemux_dump_stsd},
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{FOURCC_stts, "time-to-sample", 0,
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qtdemux_dump_stts},
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{FOURCC_stps, "partial sync sample", 0,
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qtdemux_dump_stps},
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{FOURCC_stss, "sync sample", 0,
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qtdemux_dump_stss},
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{FOURCC_stsc, "sample-to-chunk", 0,
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qtdemux_dump_stsc},
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{FOURCC_stsz, "sample size", 0,
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qtdemux_dump_stsz},
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{FOURCC_stco, "chunk offset", 0,
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qtdemux_dump_stco},
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{FOURCC_co64, "64-bit chunk offset", 0,
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qtdemux_dump_co64},
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{FOURCC_vide, "video media", 0},
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{FOURCC_cmov, "compressed movie", QT_FLAG_CONTAINER},
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{FOURCC_dcom, "compressed data", 0, qtdemux_dump_dcom},
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{FOURCC_cmvd, "compressed movie data", 0, qtdemux_dump_cmvd},
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{FOURCC_hint, "hint", 0,},
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{FOURCC_mp4a, "mp4a", 0,},
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{FOURCC_mp4v, "mp4v", 0,},
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{FOURCC_mjp2, "mjp2", 0,},
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{FOURCC_mhdr, "mhdr", QT_FLAG_CONTAINER,},
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{FOURCC_jp2h, "jp2h", QT_FLAG_CONTAINER,},
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{FOURCC_colr, "colr", 0,},
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{FOURCC_fiel, "fiel", 0,},
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{FOURCC_jp2x, "jp2x", 0,},
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{FOURCC_alac, "alac", 0,},
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{FOURCC_wave, "wave", QT_FLAG_CONTAINER},
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{FOURCC_appl, "appl", QT_FLAG_CONTAINER},
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{FOURCC_esds, "esds", 0},
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{FOURCC_hnti, "hnti", QT_FLAG_CONTAINER},
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{FOURCC_rtp_, "rtp ", 0, qtdemux_dump_unknown},
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{FOURCC_sdp_, "sdp ", 0, qtdemux_dump_unknown},
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{FOURCC_meta, "meta", 0, qtdemux_dump_unknown},
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{FOURCC_ilst, "ilst", QT_FLAG_CONTAINER,},
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{FOURCC__nam, "Name", QT_FLAG_CONTAINER,},
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{FOURCC_titl, "Title", QT_FLAG_CONTAINER,},
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{FOURCC__ART, "Artist", QT_FLAG_CONTAINER,},
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{FOURCC_aART, "Album Artist", QT_FLAG_CONTAINER,},
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{FOURCC_auth, "Author", QT_FLAG_CONTAINER,},
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{FOURCC_perf, "Performer", QT_FLAG_CONTAINER,},
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{FOURCC__wrt, "Writer", QT_FLAG_CONTAINER,},
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{FOURCC__grp, "Grouping", QT_FLAG_CONTAINER,},
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{FOURCC__alb, "Album", QT_FLAG_CONTAINER,},
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{FOURCC_albm, "Album", QT_FLAG_CONTAINER,},
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{FOURCC__day, "Date", QT_FLAG_CONTAINER,},
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{FOURCC__cpy, "Copyright", QT_FLAG_CONTAINER,},
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{FOURCC__cmt, "Comment", QT_FLAG_CONTAINER,},
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{FOURCC__des, "Description", QT_FLAG_CONTAINER,},
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{FOURCC_desc, "Description", QT_FLAG_CONTAINER,},
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{FOURCC_dscp, "Description", QT_FLAG_CONTAINER,},
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{FOURCC__lyr, "Lyrics", QT_FLAG_CONTAINER,},
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{FOURCC__req, "Requirement", QT_FLAG_CONTAINER,},
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{FOURCC__enc, "Encoder", QT_FLAG_CONTAINER,},
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{FOURCC_gnre, "Genre", QT_FLAG_CONTAINER,},
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{FOURCC_trkn, "Track Number", QT_FLAG_CONTAINER,},
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{FOURCC_disc, "Disc Number", QT_FLAG_CONTAINER,},
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{FOURCC_disk, "Disc Number", QT_FLAG_CONTAINER,},
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{FOURCC_cprt, "Copyright", QT_FLAG_CONTAINER,},
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{FOURCC_cpil, "Compilation", QT_FLAG_CONTAINER,},
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{FOURCC_pgap, "Gapless", QT_FLAG_CONTAINER,},
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{FOURCC_pcst, "Podcast", QT_FLAG_CONTAINER,},
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{FOURCC_tmpo, "Tempo", QT_FLAG_CONTAINER,},
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{FOURCC_covr, "Cover", QT_FLAG_CONTAINER,},
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{FOURCC_sonm, "Sort Title", QT_FLAG_CONTAINER,},
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{FOURCC_soal, "Sort Album", QT_FLAG_CONTAINER,},
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{FOURCC_soar, "Sort Artist", QT_FLAG_CONTAINER,},
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{FOURCC_soaa, "Sort Album Artist", QT_FLAG_CONTAINER,},
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{FOURCC_soco, "Sort Composer", QT_FLAG_CONTAINER,},
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{FOURCC_sosn, "Sort TV Show", QT_FLAG_CONTAINER,},
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{FOURCC_tvsh, "TV Show", QT_FLAG_CONTAINER,},
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{FOURCC_tven, "TV Episode ID", QT_FLAG_CONTAINER,},
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{FOURCC_tvsn, "TV Season Number", QT_FLAG_CONTAINER,},
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{FOURCC_tves, "TV Episode Number", QT_FLAG_CONTAINER,},
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{FOURCC_keyw, "Keywords", QT_FLAG_CONTAINER,},
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{FOURCC_kywd, "Keywords", QT_FLAG_CONTAINER,},
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{FOURCC__too, "Encoder", QT_FLAG_CONTAINER,},
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{FOURCC_____, "----", QT_FLAG_CONTAINER,},
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{FOURCC_data, "data", 0, qtdemux_dump_unknown},
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{FOURCC_free, "free", 0,},
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{FOURCC_SVQ3, "SVQ3", 0,},
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{FOURCC_rmra, "rmra", QT_FLAG_CONTAINER,},
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{FOURCC_rmda, "rmda", QT_FLAG_CONTAINER,},
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{FOURCC_rdrf, "rdrf", 0,},
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{FOURCC__gen, "Custom Genre", QT_FLAG_CONTAINER,},
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{FOURCC_ctts, "Composition time to sample", 0, qtdemux_dump_ctts},
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{FOURCC_XiTh, "XiTh", 0},
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{FOURCC_XdxT, "XdxT", 0},
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{FOURCC_loci, "loci", 0},
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{FOURCC_clsf, "clsf", 0},
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{FOURCC_mfra, "movie fragment random access",
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QT_FLAG_CONTAINER,},
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{FOURCC_tfra, "track fragment random access", 0,
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qtdemux_dump_tfra},
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{FOURCC_mfro, "movie fragment random access offset", 0,
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qtdemux_dump_mfro},
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{FOURCC_moof, "movie fragment", QT_FLAG_CONTAINER,},
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{FOURCC_mfhd, "movie fragment header", 0,},
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{FOURCC_traf, "track fragment", QT_FLAG_CONTAINER,},
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{FOURCC_tfhd, "track fragment header", 0,
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qtdemux_dump_tfhd},
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{FOURCC_sdtp, "independent and disposable samples", 0,
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qtdemux_dump_sdtp},
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{FOURCC_trun, "track fragment run", 0, qtdemux_dump_trun},
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{FOURCC_mdat, "moovie data", 0, qtdemux_dump_unknown},
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{FOURCC_trex, "moovie data", 0, qtdemux_dump_trex},
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{FOURCC_mvex, "mvex", QT_FLAG_CONTAINER,},
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{FOURCC_mehd, "movie extends header", 0,
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qtdemux_dump_mehd},
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{FOURCC_ovc1, "ovc1", 0},
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{FOURCC_owma, "owma", 0},
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{FOURCC_avcC, "AV codec configuration container", 0},
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{FOURCC_avc1, "AV codec configuration v1", 0},
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{FOURCC_avc3, "AV codec configuration v3", 0},
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{FOURCC_tfdt, "Track fragment decode time", 0, qtdemux_dump_tfdt},
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{FOURCC_chap, "Chapter Reference"},
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{0, "unknown", 0,},
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};
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static const int n_qt_node_types =
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sizeof (qt_node_types) / sizeof (qt_node_types[0]);
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const QtNodeType *
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qtdemux_type_get (guint32 fourcc)
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{
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int i;
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for (i = 0; i < n_qt_node_types; i++) {
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if (G_UNLIKELY (qt_node_types[i].fourcc == fourcc))
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return qt_node_types + i;
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}
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GST_WARNING ("unknown QuickTime node type %" GST_FOURCC_FORMAT,
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GST_FOURCC_ARGS (fourcc));
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return qt_node_types + n_qt_node_types - 1;
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}
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