[FFmpeg-trac] #3393(undetermined:open): Interlaced H.264 packets are split causing MP4 STTS
FFmpeg
trac at avcodec.org
Tue Feb 18 09:34:14 CET 2014
#3393: Interlaced H.264 packets are split causing MP4 STTS
-------------------------------------+-------------------------------------
Reporter: wim_arbor | Owner:
Type: defect | Status: open
Priority: normal | Component:
Version: git-master | undetermined
Keywords: h264 | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 1
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* keywords: => h264
* status: new => open
* reproduced: 0 => 1
Comment:
Input sample contains 71 video frames:
{{{
$ ffmpeg -i h264_aac_576i_tff.ts -f null -
ffmpeg version N-60700-g07b4b0c Copyright (c) 2000-2014 the FFmpeg
developers
built on Feb 18 2014 09:15:18 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 64.100 / 52. 64.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 1.102 / 4. 1.102
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, mpegts, from 'h264_aac_576i_tff.ts':
Duration: 00:00:02.80, start: 600.000000, bitrate: 9671 kb/s
Program 1
Stream #0:0[0x1011]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt470bg), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k
tbn, 50 tbc
Stream #0:1[0x1100]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 127 kb/s
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf55.33.100
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x576
[SAR 16:15 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> rawvideo)
Stream #0:1 -> #0:1 (aac -> pcm_s16le)
Press [q] to stop, [?] for help
[null @ 0x1980400] Encoder did not produce proper pts, making some up.
frame= 71 fps=0.0 q=0.0 Lsize=N/A time=00:00:02.84 bitrate=N/A
video:7kB audio:512kB subtitle:0 data:0 global headers:0kB muxing overhead
-100.004142%
}}}
142 frames are remuxed:
{{{
$ ffmpeg -i h264_aac_576i_tff.ts -vcodec copy -strict -2 out.mov
ffmpeg version N-60700-g07b4b0c Copyright (c) 2000-2014 the FFmpeg
developers
built on Feb 18 2014 09:15:18 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 64.100 / 52. 64.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 1.102 / 4. 1.102
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, mpegts, from 'h264_aac_576i_tff.ts':
Duration: 00:00:02.80, start: 600.000000, bitrate: 9671 kb/s
Program 1
Stream #0:0[0x1011]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt470bg), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k
tbn, 50 tbc
Stream #0:1[0x1100]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, fltp, 127 kb/s
Output #0, mov, to 'out.mov':
Metadata:
encoder : Lavf55.33.100
Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p, 720x576 [SAR
16:15 DAR 4:3], q=2-31, 25 fps, 90k tbn, 90k tbc
Stream #0:1: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp,
128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (aac -> aac)
Press [q] to stop, [?] for help
[mov @ 0x29384c0] pts has no value
Last message repeated 68 times
[mov @ 0x29384c0] pts has no value
Last message repeated 1 times
frame= 142 fps=0.0 q=-1.0 Lsize= 3171kB time=00:00:02.78
bitrate=9345.6kbits/s
video:3159kB audio:8kB subtitle:0 data:0 global headers:0kB muxing
overhead 0.129618%
}}}
The framerate is incorrect for out.mov:
{{{
$ ffmpeg -i out.mov -strict -2 out2.mov
ffmpeg version N-60700-g07b4b0c Copyright (c) 2000-2014 the FFmpeg
developers
built on Feb 18 2014 09:15:18 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 64.100 / 52. 64.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 1.102 / 4. 1.102
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf55.33.100
Duration: 00:00:02.84, start: 0.014667, bitrate: 9148 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
bt470bg), 720x576 [SAR 16:15 DAR 4:3], 9113 kb/s, 50 fps, 50 tbr, 90k tbn,
50 tbc (default)
Metadata:
handler_name : DataHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
fltp, 23 kb/s (default)
Metadata:
handler_name : DataHandler
Output #0, mov, to 'out2.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf55.33.100
Stream #0:0(eng): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 720x576
[SAR 16:15 DAR 4:3], q=2-31, 200 kb/s, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : DataHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
fltp, 128 kb/s (default)
Metadata:
handler_name : DataHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mpeg4)
Stream #0:1 -> #0:1 (aac -> aac)
Press [q] to stop, [?] for help
frame= 142 fps=0.0 q=2.0 Lsize= 142kB time=00:00:02.84 bitrate=
408.4kbits/s dup=71 drop=0
video:129kB audio:8kB subtitle:0 data:0 global headers:0kB muxing overhead
2.731602%
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3393#comment:4>
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