diff options
| author | John Stebbins <[email protected]> | 2017-11-09 13:43:53 -0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2017-11-09 13:43:53 -0800 |
| commit | 65597ee7f4bfa11838d815fceb6bc6dd24150c1f (patch) | |
| tree | d044e1fb014797b4526508d4d423194079d746a5 /contrib/ffmpeg/A20-avc3-hvc1-override.patch | |
| parent | 86d6345771e3b2fb22255620aa91cf77fdf15f10 (diff) | |
Add adaptive streaming support (#972)
"Adaptive streaming" allows changing video parameters mid-stream at IDR
boundaries. Such changes require new SPS and PPS NALs at the IDR. MP4
supports this with 'avc3' and 'hev1' sample entry types.
Diffstat (limited to 'contrib/ffmpeg/A20-avc3-hvc1-override.patch')
| -rw-r--r-- | contrib/ffmpeg/A20-avc3-hvc1-override.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/contrib/ffmpeg/A20-avc3-hvc1-override.patch b/contrib/ffmpeg/A20-avc3-hvc1-override.patch new file mode 100644 index 000000000..70d67b4a3 --- /dev/null +++ b/contrib/ffmpeg/A20-avc3-hvc1-override.patch @@ -0,0 +1,49 @@ +diff -ur libav-12.2.orig/libavformat/isom.c libav-12.2/libavformat/isom.c +--- libav-12.2.orig/libavformat/isom.c 2017-09-30 11:13:39.000000000 -0700 ++++ libav-12.2/libavformat/isom.c 2017-11-01 14:17:30.762856002 -0700 +@@ -152,6 +152,7 @@ + { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') }, /* HEVC/H.265 which indicates parameter sets shall not be in ES */ + + { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */ ++ { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') }, /* AVC-1/H.264 */ + { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra 50M 720p24/30/60 */ + { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra 50M 720p25/50 */ + { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra 50M 1080p25/50 */ +diff -ur libav-12.2.orig/libavformat/movenc.c libav-12.2/libavformat/movenc.c +--- libav-12.2.orig/libavformat/movenc.c 2017-09-30 11:13:39.000000000 -0700 ++++ libav-12.2/libavformat/movenc.c 2017-11-01 14:20:52.783487291 -0700 +@@ -724,7 +724,10 @@ + + avio_wb32(pb, 0); + ffio_wfourcc(pb, "hvcC"); +- ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0); ++ if (track->tag == MKTAG('h','v','c','1')) ++ ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1); ++ else ++ ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0); + return update_size(pb, pos); + } + +@@ -783,7 +786,11 @@ + if (!ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id)) + return 0; + +- if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1'); ++ if (track->par->codec_id == AV_CODEC_ID_H264 && ++ tag == MKTAG('a','v','c','3')) ; ++ else if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1'); ++ else if (track->par->codec_id == AV_CODEC_ID_HEVC && ++ tag == MKTAG('h','v','c','1')) ; + else if (track->par->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1'); + else if (track->par->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3'); + else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c'); +@@ -4476,7 +4483,7 @@ + .write_packet = mov_write_packet, + .write_trailer = mov_write_trailer, + .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, +- .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 }, ++ .codec_tag = (const AVCodecTag* const []){ ff_codec_movvideo_tags, ff_codec_movaudio_tags, ff_codec_movsubtitle_tags, 0 }, + .priv_class = &mp4_muxer_class, + }; + #endif +Only in libav-12.2/libavformat: movenc.c.orig |