Opened 6 years ago
Last modified 5 years ago
#7121 open defect
Changing framerate of an MJPEG stream with piping drops malformed images
| Reported by: | firesharker | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | avcodec |
| Version: | git-master | Keywords: | mjpeg regression |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
Changing framerate of an MJPEG stream with piping drops malformed images.
How to reproduce:
% ffmpeg -i test.avi -c copy -f image2pipe - | ffmpeg -f image2pipe -framerate 10 -i - -c copy out.avi ffmpeg version 3.2.4 and N-45595-g5710fdaea-static on ubuntu 16.04 or OS X 10.9.5
In test.avi and out.avi there should be equal number of frames, but with 10 fps instead of 1.
The same job done with
ffmpeg -i test.avi -c copy frames%d.jpg ffmpeg -framerate 10 -i frames%d.jpg -c copy out.avi
works correctly.
Attachments (2)
Change History (11)
by , 6 years ago
comment:1 by , 6 years ago
| Version: | unspecified → 3.2.4 |
|---|
comment:2 by , 6 years ago
| Version: | 3.2.4 → unspecified |
|---|
comment:3 by , 6 years ago
I tested with current git using same commands when this was asked at SE and it reproduces.
Of note is the following from first command in pipe with -v 48. The salient parts are the buffer sizes reported
[avi @ 0000000000498340] Before avformat_find_stream_info() pos: 5678 bytes read:130312 seeks:4 nb_streams:1 [mjpeg @ 0000000002904400] marker=d8 avail_size_in_buf=87542 [mjpeg @ 0000000002904400] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904400] marker=db avail_size_in_buf=87540 [mjpeg @ 0000000002904400] index=0 [mjpeg @ 0000000002904400] qscale[0]: 4 [mjpeg @ 0000000002904400] marker parser used 67 bytes (536 bits) [mjpeg @ 0000000002904400] marker=db avail_size_in_buf=87471 [mjpeg @ 0000000002904400] index=1 [mjpeg @ 0000000002904400] qscale[1]: 9 [mjpeg @ 0000000002904400] marker parser used 67 bytes (536 bits) [mjpeg @ 0000000002904400] marker=c0 avail_size_in_buf=87402 [mjpeg @ 0000000002904400] Changing bps from 0 to 8 [mjpeg @ 0000000002904400] sof0: picture: 1280x720 [mjpeg @ 0000000002904400] component 0 2:2 id: 0 quant:0 [mjpeg @ 0000000002904400] component 1 1:1 id: 1 quant:1 [mjpeg @ 0000000002904400] component 2 1:1 id: 2 quant:1 [mjpeg @ 0000000002904400] pix fmt id 22111100 [mjpeg @ 0000000002904400] Format yuvj420p chosen by get_format(). [mjpeg @ 0000000002904400] marker parser used 17 bytes (136 bits) [mjpeg @ 0000000002904400] marker=c4 avail_size_in_buf=87383 [mjpeg @ 0000000002904400] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904400] marker=c4 avail_size_in_buf=87350 [mjpeg @ 0000000002904400] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904400] marker=c4 avail_size_in_buf=87167 [mjpeg @ 0000000002904400] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904400] marker=c4 avail_size_in_buf=87134 [mjpeg @ 0000000002904400] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904400] marker=ef avail_size_in_buf=86951 [mjpeg @ 0000000002904400] marker parser used 152 bytes (1216 bits) [mjpeg @ 0000000002904400] escaping removed 816 bytes [mjpeg @ 0000000002904400] marker=da avail_size_in_buf=86796 [mjpeg @ 0000000002904400] marker parser used 85980 bytes (687840 bits) [mjpeg @ 0000000002904400] marker=d9 avail_size_in_buf=576 [mjpeg @ 0000000002904400] decode frame unused 576 bytes [avi @ 0000000000498340] max_analyze_duration 5000000 reached at 5000000 microseconds st:0
And in the receiving command,
[image2pipe @ 00000000028f2f00] Opening 'pipe:' for reading [pipe @ 00000000028f3b40] Setting default whitelist 'crypto' [image2pipe @ 00000000028f2f00] Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0 nb_streams:1 [mjpeg @ 0000000002904d80] marker=d8 avail_size_in_buf=2003270 [mjpeg @ 0000000002904d80] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904d80] marker=db avail_size_in_buf=2003268 [mjpeg @ 0000000002904d80] index=0 [mjpeg @ 0000000002904d80] qscale[0]: 4 [mjpeg @ 0000000002904d80] marker parser used 67 bytes (536 bits) [mjpeg @ 0000000002904d80] marker=db avail_size_in_buf=2003199 [mjpeg @ 0000000002904d80] index=1 [mjpeg @ 0000000002904d80] qscale[1]: 9 [mjpeg @ 0000000002904d80] marker parser used 67 bytes (536 bits) [mjpeg @ 0000000002904d80] marker=c0 avail_size_in_buf=2003130 [mjpeg @ 0000000002904d80] Changing bps from 0 to 8 [mjpeg @ 0000000002904d80] sof0: picture: 1280x720 [mjpeg @ 0000000002904d80] component 0 2:2 id: 0 quant:0 [mjpeg @ 0000000002904d80] component 1 1:1 id: 1 quant:1 [mjpeg @ 0000000002904d80] component 2 1:1 id: 2 quant:1 [mjpeg @ 0000000002904d80] pix fmt id 22111100 [mjpeg @ 0000000002904d80] Format yuvj420p chosen by get_format(). [mjpeg @ 0000000002904d80] marker parser used 17 bytes (136 bits) [mjpeg @ 0000000002904d80] marker=c4 avail_size_in_buf=2003111 [mjpeg @ 0000000002904d80] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904d80] marker=c4 avail_size_in_buf=2003078 [mjpeg @ 0000000002904d80] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904d80] marker=c4 avail_size_in_buf=2002895 [mjpeg @ 0000000002904d80] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904d80] marker=c4 avail_size_in_buf=2002862 [mjpeg @ 0000000002904d80] marker parser used 0 bytes (0 bits) [mjpeg @ 0000000002904d80] marker=ef avail_size_in_buf=2002679 [mjpeg @ 0000000002904d80] marker parser used 152 bytes (1216 bits) [mjpeg @ 0000000002904d80] escaping removed 1916544 bytes [mjpeg @ 0000000002904d80] marker=da avail_size_in_buf=2002524 [mjpeg @ 0000000002904d80] marker parser used 85980 bytes (687840 bits) [mjpeg @ 0000000002904d80] marker=d9 avail_size_in_buf=1916304 [mjpeg @ 0000000002904d80] decode frame unused 1916304 bytes [image2pipe @ 00000000028f2f00] Probe buffer size limit of 5000000 bytes reached
comment:4 by , 6 years ago
Tested with the 20180402 nightly build and 3.2.4
$ ffmpeg -i test.avi -c copy -f image2pipe - | ffmpeg -f image2pipe -framerate 10 -i - -c copy out.avi
ffmpeg version N-45595-g5710fdaea-static https://johnvansickle.com/ffmpeg/ ffmpeg version N-45595-g5710fdaea-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers
Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
libavutil 56. 12.100 / 56. 12.100
libavcodec 58. 17.100 / 58. 17.100
libavformat 58. 10.100 / 58. 10.100
libavdevice 58. 2.100 / 58. 2.100
libavutil 56. 12.100 / 56. 12.100
libavfilter 7. 14.100 / 7. 14.100
libavcodec 58. 17.100 / 58. 17.100
libswscale 5. 0.102 / 5. 0.102
libavformat 58. 10.100 / 58. 10.100
libswresample 3. 0.101 / 3. 0.101
libavdevice 58. 2.100 / 58. 2.100
libpostproc 55. 0.100 / 55. 0.100
libavfilter 7. 14.100 / 7. 14.100
libswscale 5. 0.102 / 5. 0.102
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Input #0, avi, from 'test.avi':
Metadata:
encoder : Lavf57.56.101
Duration: 00:00:25.00, start: 0.000000, bitrate: 699 kb/s
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720, 726 kb/s, 1 fps, 1 tbr, 1 tbn, 1 tbc
Output #0, image2pipe, to 'pipe:':
Metadata:
encoder : Lavf58.10.100
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720, q=2-31, 726 kb/s, 1 fps, 1 tbr, 1 tbn, 1 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame= 25 fps=0.0 q=-1.0 Lsize= 2128kB time=00:00:25.00 bitrate= 697.4kbits/s speed=9.12e+03x
video:2128kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
Input #0, image2pipe, from 'pipe:':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720, 10 fps, 10 tbr, 10 tbn, 10 tbc
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf58.10.100
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720, q=2-31, 10 fps, 10 tbr, 10 tbn, 10 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
frame= 3 fps=0.0 q=-1.0 Lsize= 2134kB time=00:00:00.30 bitrate=58270.5kbits/s speed= 341x
video:2128kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.264203%
comment:5 by , 6 years ago
| Component: | undetermined → avcodec |
|---|---|
| Keywords: | mjpeg regression added |
| Version: | unspecified → git-master |
How was the input file created? There is a lot of garbage at the end of each frame.
comment:6 by , 6 years ago
The video was recorded with a Brinno TLC200 Pro time lapse camera. I used ffmpeg -i original.avi -c copy -vframes 25 test.avi to create the sample file.
comment:8 by , 6 years ago
Sorry, I can't share the original file (and its quite large), but I recorded this test file. According to my tests, it reproduces the problem.
comment:9 by , 5 years ago
| Priority: | normal → important |
|---|---|
| Reproduced by developer: | set |
| Status: | new → open |
This is a regression since 1af3571e05522df4e71a5b33de05bdb9e953a6c4
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