[FFmpeg-trac] #4951(undetermined:closed): Different frame rate using ts and mov containers
FFmpeg
trac at avcodec.org
Thu Oct 22 15:19:14 CEST 2015
#4951: Different frame rate using ts and mov containers
-------------------------------------+-------------------------------------
Reporter: liamf91 | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: 2.8.1 | undetermined
Keywords: h264 mov | Resolution:
mpegts | needs_more_info
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by liamf91):
I have written video data from a stream to a .ts file using -codec copy.
The file is 1080i 25FPS 25Mb/s bitrate.
I have then tried to convert the file using the latest git head and the
following is the command and console output.
{{{
ffmpeg -i ffmpeg_test_video.ts -vcodec copy -acodec pcm_s24le -top 1
ffmpeg_test_video.mov
ffmpeg version N-76159-gda43e9e Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.9.2 (Debian 4.9.2-10)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
postproc --enable-x11grab --enable-libopencore-amrnb --enable-libopencore-
amrwb --enable-libdc1394 --enable-libfaac --enable-libgsm --enable-
libmp3lame --enable-libopenjpeg --enable-libschroedinger --enable-libspeex
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libxvid
libavutil 55. 4.100 / 55. 4.100
libavcodec 57. 8.100 / 57. 8.100
libavformat 57. 10.101 / 57. 10.101
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 12.100 / 6. 12.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, mpegts, from 'ffmpeg_test_video.ts':
Duration: 00:04:59.95, start: 1.450600, bitrate: 25138 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000
Hz, stereo, fltp, 127 kb/s
[mov @ 0x34b9780] Codec for stream 0 does not use global headers but
container format requires global headers
Output #0, mov, to 'ffmpeg_test_video.mov':
Metadata:
encoder : Lavf57.10.101
Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR
1:1 DAR 16:9], q=2-31, 25 fps, 50 tbr, 90k tbn, 90k tbc
Stream #0:1: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo,
s32, 2304 kb/s
Metadata:
encoder : Lavc57.8.100 pcm_s24le
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (aac (native) -> pcm_s24le (native))
Press [q] to stop, [?] for help
frame=14955 fps= 95 q=-1.0 Lsize= 932056kB time=00:04:59.96
bitrate=25454.1kbits/s
video:847498kB audio:84366kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.020640%
}}}
I then use ffprobe on the finished file with the following output.
{{{
ffprobe ffmpeg_test_video.mov
ffprobe version N-76159-gda43e9e Copyright (c) 2007-2015 the FFmpeg
developers
built with gcc 4.9.2 (Debian 4.9.2-10)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
postproc --enable-x11grab --enable-libopencore-amrnb --enable-libopencore-
amrwb --enable-libdc1394 --enable-libfaac --enable-libgsm --enable-
libmp3lame --enable-libopenjpeg --enable-libschroedinger --enable-libspeex
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libxvid
libavutil 55. 4.100 / 55. 4.100
libavcodec 57. 8.100 / 57. 8.100
libavformat 57. 10.101 / 57. 10.101
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 12.100 / 6. 12.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ffmpeg_test_video.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf57.10.101
Duration: 00:04:59.97, start: 0.000000, bitrate: 25454 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], 23211 kb/s, 50 fps, 50 tbr, 90k tbn, 50 tbc
(default)
Metadata:
handler_name : DataHandler
Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz,
stereo, s32 (24 bit), 2304 kb/s (default)
Metadata:
handler_name : DataHandler
}}}
As you can see the file is showing 50FPS although when I was running the
first command it claimed that the file output is at 25FPS.
The file I have used as the source is 900MB, just an FYI you would like me
to upload it somewhere.
Thanks
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4951#comment:8>
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