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-rw-r--r--demux/codec_tags.c379
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diff --git a/demux/codec_tags.c b/demux/codec_tags.c
new file mode 100644
index 0000000000..1719a4373f
--- /dev/null
+++ b/demux/codec_tags.c
@@ -0,0 +1,379 @@
+/*
+ * This file is part of mpv.
+ *
+ * mpv 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.
+ *
+ * mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libavformat/avformat.h>
+#include <libavcodec/avcodec.h>
+#include <libavutil/common.h>
+#include "codec_tags.h"
+#include "stheader.h"
+#include "core/av_common.h"
+
+/* The following tables map FourCCs to codec names (as defined by libavcodec).
+ * However, this includes only names that are not defined by libavformat's
+ * RIFF tag tables, or which are mapped differently (for unknown reasons).
+ * These mappings were extracted from the codecs.conf file when it was removed,
+ * and these mappings have been maintained for years, meaning they are well
+ * tested and possibly make some files work. Or they could just be bugs.
+ *
+ * Note that demux_lavf does not use these tables, and always uses the native
+ * libavformat mappings.
+ *
+ * Note about internal mplayer FourCCs:
+ *
+ * These are made-up FourCCs which don't actually show up in files, but which
+ * were used by the original MPlayer to identify codecs. Since we don't quite
+ * know/care if there are still some uses of them left, they're still here.
+ */
+
+struct mp_codec_tag {
+ uint32_t tag;
+ const char *codec;
+};
+
+static const struct mp_codec_tag mp_audio_codec_tags[] = {
+ {MKTAG('Q', 'D', 'M', '2'), "qdm2"},
+ {MKTAG('Q', 'c', 'l', 'p'), "qcelp"},
+ {MKTAG('s', 'q', 'c', 'p'), "qcelp"},
+ {MKTAG('Q', 'c', 'l', 'q'), "qcelp"},
+ {MKTAG('1', '4', '_', '4'), "ra_144"},
+ {MKTAG('l', 'p', 'c', 'J'), "ra_144"},
+ {MKTAG('2', '8', '_', '8'), "ra_288"},
+ {MKTAG('c', 'o', 'o', 'k'), "cook"},
+ {MKTAG('a', 't', 'r', 'c'), "atrac3"},
+ {MKTAG('s', 'i', 'p', 'r'), "sipr"},
+ {MKTAG('S', 'M', 'K', 'A'), "smackaudio"},
+ {MKTAG('A', 'x', 'a', 'n'), "xan_dpcm"},
+ {0x594a , "xan_dpcm"},
+ {MKTAG('T', 'H', 'P', 'A'), "adpcm_thp"},
+ {MKTAG('R', 'A', 'D', 'V'), "dvaudio"},
+ {MKTAG('v', 'd', 'v', 'a'), "dvaudio"},
+ {MKTAG('d', 'v', 'c', 'a'), "dvaudio"},
+ {MKTAG('d', 'v', 'a', 'u'), "dvaudio"},
+ {MKTAG('m', 'p', '4', 'a'), "aac"},
+ {MKTAG('M', 'P', '4', 'A'), "aac"},
+ {MKTAG('r', 'a', 'a', 'c'), "aac"},
+ {MKTAG('r', 'a', 'c', 'p'), "aac"},
+ {0xa106 , "aac"}, // libav 0.8: -, ffmpeg 1.1: aac
+ {0xaac0 , "aac"},
+ {MKTAG('f', 'L', 'a', 'C'), "flac"},
+ {MKTAG('m', 's', 241, 172), "flac"},
+ {MKTAG('a', 'l', 'a', 'c'), "alac"},
+ {MKTAG('A', 'P', 'E', ' '), "ape"},
+ {MKTAG('d', 'a', 'u', 'd'), "pcm_s24daud"},
+ {MKTAG('W', 'M', 'A', '3'), "wmapro"},
+ {MKTAG('M', 'A', 'C', '3'), "mace3"},
+ {MKTAG('M', 'A', 'C', '6'), "mace6"},
+ {MKTAG('S', 'O', 'N', 'C'), "sonic"},
+ {0x2048 , "sonic"}, // libav 0.8: -, ffmpeg 1.1: sonic
+ {MKTAG('T', 'S', 0 , 'U'), "mp3"},
+ {MKTAG('G', 'S', 'M', ' '), "gsm"},
+ {0x1500 , "gsm"}, // lavf: gsm_ms
+ {MKTAG('a', 'g', 's', 'm'), "gsm"},
+ {0x32 , "gsm_ms"},
+ {MKTAG(1 , 0 , 1 , 0 ), "pcm_dvd"},
+ {MKTAG('B', 'S', 'S', 'D'), "s302m"},
+ {MKTAG('A', 'C', '-', '3'), "ac3"},
+ {MKTAG('d', 'n', 'e', 't'), "ac3"},
+ {MKTAG('s', 'a', 'c', '3'), "ac3"},
+ {MKTAG('E', 'A', 'C', '3'), "eac3"},
+ {0x86 , "dts"},
+ {MKTAG('M', 'P', 'C', ' '), "musepack7"},
+ {MKTAG('M', 'P', 'C', '8'), "musepack8"},
+ {MKTAG('M', 'P', 'C', 'K'), "musepack8"},
+ {MKTAG('s', 'a', 'm', 'r'), "amr_nb"},
+ {MKTAG('s', 'a', 'w', 'b'), "amr_wb"},
+ {MKTAG('v', 'r', 'b', 's'), "vorbis"},
+ // Special cased in ad_lavc:
+ {0 , "pcm"},
+ {0x1 , "pcm"}, // lavf: pcm_s16le
+ {0x3 , "pcm"}, // lavf: pcm_f32le
+ {0xfffe , "pcm"},
+ // ------- internal mplayer FourCCs ------
+ {MKTAG('S', 'a', 'd', 'x'), "adpcm_adx"},
+ {MKTAG('A', 'M', 'V', 'A'), "adpcm_ima_amv"},
+ {MKTAG('R', 'o', 'Q', 'A'), "roq_dpcm"},
+ {MKTAG('B', 'A', 'U', '1'), "binkaudio_dct"},
+ {MKTAG('B', 'A', 'U', '2'), "binkaudio_rdft"},
+ {MKTAG('D', 'C', 'I', 'A'), "dsicinaudio"},
+ {MKTAG('4', 'X', 'M', 'A'), "adpcm_4xm"},
+ {MKTAG('A', 'I', 'W', 'S'), "adpcm_ima_ws"},
+ {MKTAG('S', 'N', 'D', '1'), "westwood_snd1"},
+ {MKTAG('I', 'N', 'P', 'A'), "interplay_dpcm"},
+ {MKTAG('A', 'D', 'E', 'A'), "adpcm_ea"},
+ {MKTAG('A', 'D', 'X', 'A'), "adpcm_ea_maxis_xa"},
+ {MKTAG('P', 'S', 'X', 'A'), "adpcm_xa"},
+ {MKTAG('M', 'P', '4', 'L'), "aac_latm"},
+ {MKTAG('T', 'T', 'A', '1'), "tta"},
+ {MKTAG('W', 'V', 'P', 'K'), "wavpack"},
+ {MKTAG('s', 'h', 'r', 'n'), "shorten"},
+ {MKTAG('A', 'L', 'S', ' '), "mp4als"},
+ {MKTAG('M', 'L', 'P', ' '), "mlp"},
+ {MKTAG('T', 'R', 'H', 'D'), "truehd"},
+ {MKTAG('N', 'E', 'L', 'L'), "nellymoser"},
+ {MKTAG('m', '4', 'a', 29 ), "mp3on4"},
+ {MKTAG('a', 'd', 'u', 'U'), "mp3adu"},
+ {MKTAG('B', 'P', 'C', 'M'), "pcm_bluray"},
+ {MKTAG('P', 'L', 'X', 'F'), "pcm_lxf"},
+ {MKTAG('T', 'W', 'I', '2'), "twinvq"},
+ {0x20776172, "pcm"}, // demux_mpg.c dvdpcm
+ {0},
+};
+
+static const struct mp_codec_tag mp_video_codec_tags[] = {
+ {MKTAG('V', 'B', 'V', '1'), "vb"},
+ {MKTAG('M', 'L', '2', '0'), "mimic"},
+ {MKTAG('R', '1', '0', 'g'), "r10k"},
+ {MKTAG('m', '1', 'v', '1'), "mpeg1video"},
+ {MKTAG('m', 'p', 'g', '2'), "mpeg2video"}, // lavf: mpeg1video
+ {MKTAG('M', 'P', 'G', '2'), "mpeg2video"}, // lavf: mpeg1video
+ {MKTAG('m', 'x', '5', 'p'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '1'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '2'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '3'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '4'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '5'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '6'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '7'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '8'), "mpeg2video"},
+ {MKTAG('h', 'd', 'v', '9'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '1'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '2'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '3'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '4'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '5'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '6'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '7'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '8'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', '9'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', 'a'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', 'b'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', 'c'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', 'd'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', 'e'), "mpeg2video"},
+ {MKTAG('x', 'd', 'v', 'f'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', 'a'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', 'b'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', 'c'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', 'd'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', 'e'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', 'f'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', '9'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', '4'), "mpeg2video"},
+ {MKTAG('x', 'd', '5', '5'), "mpeg2video"},
+ {MKTAG('m', 'x', '5', 'n'), "mpeg2video"},
+ {MKTAG('m', 'x', '4', 'n'), "mpeg2video"},
+ {MKTAG('m', 'x', '4', 'p'), "mpeg2video"},
+ {MKTAG('m', 'x', '3', 'n'), "mpeg2video"},
+ {MKTAG('m', 'x', '3', 'p'), "mpeg2video"},
+ {MKTAG('A', 'V', 'm', 'p'), "mpeg2video"},
+ {MKTAG('V', 'C', 'R', '2'), "mpeg2video"}, // lavf: mpeg1video
+ {MKTAG('m', 'p', '2', 'v'), "mpeg2video"},
+ {MKTAG('m', '2', 'v', '1'), "mpeg2video"},
+ {MKTAG('R', 'J', 'P', 'G'), "nuv"},
+ {MKTAG('b', 'm', 'p', ' '), "bmp"},
+ {MKTAG('b', 'm', 'p', 0 ), "bmp"},
+ {MKTAG('g', 'i', 'f', ' '), "gif"},
+ {MKTAG('t', 'i', 'f', 'f'), "tiff"},
+ {MKTAG('p', 'c', 'x', ' '), "pcx"},
+ {MKTAG('m', 't', 'g', 'a'), "targa"},
+ {MKTAG('M', 'T', 'G', 'A'), "targa"},
+ {MKTAG('r', 'l', 'e', ' '), "qtrle"},
+ {MKTAG('s', 'm', 'c', ' '), "smc"},
+ {MKTAG('8', 'B', 'P', 'S'), "8bps"},
+ {MKTAG('W', 'R', 'L', 'E'), "msrle"},
+ {MKTAG('F', 'F', 'V', 'H'), "huffyuv"}, // lavf: ffvhuff
+ {MKTAG('P', 'I', 'X', 'L'), "vixl"},
+ {MKTAG('X', 'I', 'X', 'L'), "vixl"},
+ {MKTAG('q', 'd', 'r', 'w'), "qdraw"},
+ {MKTAG('D', 'I', 'V', 'F'), "msmpeg4v3"},
+ {MKTAG('d', 'i', 'v', 'f'), "msmpeg4v3"},
+ {MKTAG('3', 'I', 'V', 'D'), "msmpeg4v3"},
+ {MKTAG('3', 'i', 'v', 'd'), "msmpeg4v3"},
+ {MKTAG('w', 'm', 'v', 'p'), "wmv3"}, // lavf: wmv3image
+ {MKTAG('W', 'M', 'V', 'P'), "wmv3"}, // lavf: wmv3image
+ {MKTAG('v', 'c', '-', '1'), "vc1"},
+ {MKTAG('V', 'C', '-', '1'), "vc1"},
+ {MKTAG('v', 'v', 'v', 'c'), "h264"},
+ {MKTAG('a', 'i', '5', '5'), "h264"},
+ {MKTAG('a', 'i', '1', '5'), "h264"},
+ {MKTAG('a', 'i', '1', 'q'), "h264"},
+ {MKTAG('a', 'i', '5', 'q'), "h264"},
+ {MKTAG('a', 'i', '1', '2'), "h264"},
+ {MKTAG(5 , 0 , 0 , 16 ), "h264"},
+ {MKTAG('S', 'V', 'Q', '3'), "svq3"}, // libav 0.8: -, ffmpeg 1.1: svq3
+ {MKTAG('d', 'r', 'a', 'c'), "dirac"}, // libav 0.8: -, ffmpeg 1.1: dirac
+ {MKTAG('A', 'V', 'R', 'n'), "mjpeg"}, // libav 0.8: mjpeg, ffmpeg 1.1: avrn
+ {MKTAG('A', 'V', 'D', 'J'), "mjpeg"},
+ {MKTAG('A', 'D', 'J', 'V'), "mjpeg"},
+ {MKTAG('J', 'F', 'I', 'F'), "mjpeg"},
+ {MKTAG('M', 'J', 'L', 'S'), "mjpeg"}, // lavf: jpegls
+ {MKTAG('m', 'j', 'p', 'b'), "mjpegb"},
+ {MKTAG('U', '2', '6', '3'), "h263"}, // libav 0.8: -, ffmpeg 1.1: h263
+ {MKTAG('v', 'i', 'v', '1'), "h263"},
+ {MKTAG('s', '2', '6', '3'), "h263"}, // libav 0.8: -, ffmpeg 1.1: flv1
+ {MKTAG('S', '2', '6', '3'), "h263"}, // same
+ {MKTAG('D', '2', '6', '3'), "h263"},
+ {MKTAG('I', 'L', 'V', 'R'), "h263"},
+ {MKTAG('d', 'v', 'p', ' '), "dvvideo"},
+ {MKTAG('d', 'v', 'p', 'p'), "dvvideo"},
+ {MKTAG('A', 'V', 'd', 'v'), "dvvideo"},
+ {MKTAG('A', 'V', 'd', '1'), "dvvideo"},
+ {MKTAG('d', 'v', 'h', 'q'), "dvvideo"},
+ {MKTAG('d', 'v', 'h', 'p'), "dvvideo"},
+ {MKTAG('d', 'v', 'h', '5'), "dvvideo"},
+ {MKTAG('d', 'v', 'h', '6'), "dvvideo"},
+ {MKTAG('d', 'v', 'h', '3'), "dvvideo"},
+ {MKTAG('d', 'v', 's', '1'), "dvvideo"},
+ {MKTAG('R', 'V', '2', '0'), "rv20"},
+ {MKTAG('r', 'v', '2', '0'), "rv20"},
+ {MKTAG('R', 'V', 'T', 'R'), "rv20"},
+ {MKTAG('R', 'V', '3', '0'), "rv30"},
+ {MKTAG('r', 'v', '3', '0'), "rv30"},
+ {MKTAG('R', 'V', '4', '0'), "rv40"},
+ {MKTAG('r', 'v', '4', '0'), "rv40"},
+ {MKTAG('R', 'V', '1', '0'), "rv10"},
+ {MKTAG('r', 'v', '1', '0'), "rv10"},
+ {MKTAG('R', 'V', '1', '3'), "rv10"},
+ {MKTAG('r', 'v', '1', '3'), "rv10"},
+ {MKTAG('T', 'h', 'r', 'a'), "theora"},
+ {0xfffc , "theora"},
+ {MKTAG('V', 'P', '6', 'A'), "vp6a"},
+ {MKTAG('S', 'P', '5', '3'), "sp5x"},
+ {MKTAG('S', 'P', '5', '5'), "sp5x"},
+ {MKTAG('S', 'P', '5', '6'), "sp5x"},
+ {MKTAG('S', 'P', '5', '7'), "sp5x"},
+ {MKTAG('S', 'P', '5', '8'), "sp5x"},
+ {MKTAG('S', 'M', 'K', '2'), "smackvideo"},
+ {MKTAG('S', 'M', 'K', '4'), "smackvideo"},
+ {MKTAG('a', 'v', 's', '2'), "cavs"},
+ {MKTAG('A', 'V', 'd', 'n'), "dnxhd"},
+ {MKTAG('a', 'p', 'c', 'h'), "prores"},
+ {MKTAG('a', 'p', 'c', 'n'), "prores"},
+ {MKTAG('a', 'p', 'c', 's'), "prores"},
+ {MKTAG('a', 'p', 'c', 'o'), "prores"},
+ {MKTAG('a', 'p', '4', 'h'), "prores"},
+ {MKTAG('f', 'V', 'G', 'T'), "tgv"},
+ // These are probably not correctly handled. The original codecs.conf
+ // entries mapped these to separate pixel formats via vd_raw and the
+ // "out" directive (look at MPlayer's codecs.conf).
+ // Should they be aliased to supported FourCCs of the same formats?
+ {MKTAG('A', 'V', '1', 'x'), "rawvideo"},
+ {MKTAG('A', 'V', 'u', 'p'), "rawvideo"},
+ {MKTAG('4', '4', '4', 'p'), "rawvideo"},
+ {MKTAG('4', '4', '4', 'P'), "rawvideo"},
+ {MKTAG('4', '2', '2', 'p'), "rawvideo"},
+ {MKTAG('4', '2', '2', 'P'), "rawvideo"},
+ // Unknown:
+ {MKTAG('r', 'a', 'w', ' '), "rawvideo"},
+ {MKTAG('D', 'V', 'O', 'O'), "rawvideo"},
+ // ------- internal mplayer FourCCs ------
+ {MKTAG('A', 'N', 'M', ' '), "anm"},
+ {MKTAG('B', 'I', 'K', 'f'), "binkvideo"},
+ {MKTAG('B', 'I', 'K', 'g'), "binkvideo"},
+ {MKTAG('B', 'I', 'K', 'h'), "binkvideo"},
+ {MKTAG('B', 'I', 'K', 'i'), "binkvideo"},
+ {MKTAG('C', 'D', 'G', 'R'), "cdgraphics"},
+ {MKTAG('M', 'V', 'I', '1'), "motionpixels"},
+ {MKTAG('M', 'D', 'E', 'C'), "mdec"},
+ {MKTAG('N', 'U', 'V', '1'), "nuv"},
+ {MKTAG('p', 't', 'x', ' '), "ptx"},
+ {MKTAG('S', 'G', 'I', '1'), "sgi"},
+ {MKTAG('s', 'u', 'n', ' '), "sunrast"},
+ {MKTAG('F', 'L', 'I', 'C'), "flic"},
+ {MKTAG('R', 'o', 'Q', 'V'), "roq"},
+ {MKTAG('A', 'M', 'V', 'V'), "amv"},
+ {MKTAG('F', 'F', 'J', 'V'), "jv"},
+ {MKTAG('T', 'S', 'E', 'Q'), "tiertexseqvideo"},
+ {MKTAG('V', 'M', 'D', 'V'), "vmdvideo"},
+ {MKTAG('D', 'X', 'A', '1'), "dxa"},
+ {MKTAG('D', 'C', 'I', 'V'), "dsicinvideo"},
+ {MKTAG('T', 'H', 'P', 'V'), "thp"},
+ {MKTAG('B', 'F', 'I', 'V'), "bfi"},
+ {MKTAG('B', 'E', 'T', 'H'), "bethsoftvid"},
+ {MKTAG('R', 'L', '2', 'V'), "rl2"},
+ {MKTAG('T', 'X', 'D', 'V'), "txd"},
+ {MKTAG('W', 'C', '3', 'V'), "xan_wc3"},
+ {MKTAG('I', 'D', 'C', 'I'), "idcin"},
+ {MKTAG('I', 'N', 'P', 'V'), "interplayvideo"},
+ {MKTAG('V', 'Q', 'A', 'V'), "ws_vqa"},
+ {MKTAG('C', '9', '3', 'V'), "c93"},
+ {0},
+};
+
+static const int mp_fourcc_video_aliases[][2] = {
+ // msmpeg4
+ {MKTAG('M', 'P', 'G', '3'), MKTAG('d', 'i', 'v', '3')},
+ {MKTAG('m', 'p', 'g', '3'), MKTAG('d', 'i', 'v', '3')},
+ {MKTAG('M', 'P', '4', '3'), MKTAG('d', 'i', 'v', '3')},
+ {MKTAG('m', 'p', '4', '3'), MKTAG('d', 'i', 'v', '3')},
+ {MKTAG('D', 'I', 'V', '5'), MKTAG('d', 'i', 'v', '3')},
+ {MKTAG('d', 'i', 'v', '5'), MKTAG('d', 'i', 'v', '3')},
+ {MKTAG('D', 'I', 'V', '6'), MKTAG('d', 'i', 'v', '4')},
+ {MKTAG('d', 'i', 'v', '6'), MKTAG('d', 'i', 'v', '4')},
+ {MKTAG('A', 'P', '4', '1'), MKTAG('d', 'i', 'v', '3')},
+
+ // msmpeg4v2
+ {MKTAG('D', 'I', 'V', '2'), MKTAG('m', 'p', '4', '2')},
+ {MKTAG('d', 'i', 'v', '2'), MKTAG('m', 'p', '4', '2')},
+ {MKTAG('D', 'I', 'V', '1'), MKTAG('d', 'i', 'v', 'x')},
+ {MKTAG('d', 'i', 'v', '1'), MKTAG('d', 'i', 'v', 'x')},
+
+ // mpeg4
+ {MKTAG('d', 'x', '5', '0'), MKTAG('D', 'X', '5', '0')},
+ {MKTAG('B', 'L', 'Z', '0'), MKTAG('D', 'X', '5', '0')},
+
+ {MKTAG('v', 'i', 'v', '1'), MKTAG('h', '2', '6', '3')},
+ {MKTAG('T', 'h', 'r', 'a'), MKTAG('t', 'h', 'e', 'o')},
+
+ {0},
+};
+
+static const char *lookup_tag(const struct mp_codec_tag *mp_table,
+ const struct AVCodecTag *av_table,
+ uint32_t tag)
+{
+ for (int n = 0; mp_table[n].codec; n++) {
+ if (mp_table[n].tag == tag)
+ return mp_table[n].codec;
+ }
+ const struct AVCodecTag *av_tags[] = {av_table, NULL};
+ int id = av_codec_get_id(av_tags, tag);
+ return id == CODEC_ID_NONE ? NULL : mp_codec_from_av_codec_id(id);
+}
+
+void mp_set_video_codec_from_tag(struct sh_video *sh)
+{
+ sh->gsh->codec = lookup_tag(mp_video_codec_tags,
+ avformat_get_riff_video_tags(),
+ sh->format);
+}
+
+void mp_set_audio_codec_from_tag(struct sh_audio *sh)
+{
+ sh->gsh->codec = lookup_tag(mp_audio_codec_tags,
+ avformat_get_riff_audio_tags(),
+ sh->format);
+}
+
+uint32_t mp_video_fourcc_alias(uint32_t fourcc)
+{
+ for (int n = 0; mp_fourcc_video_aliases[n][0]; n++) {
+ if (mp_fourcc_video_aliases[n][0] == fourcc)
+ return mp_fourcc_video_aliases[n][1];
+ }
+ return fourcc;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 10:46:23 +0000