New submission from Nezmer <[email protected]>:
The file comes from an rtmp stream, and the results are re-producible with any
file captured from this stream:
ffmpeg -v 9 -loglevel 99 -i <filename>
FFmpeg version git-45ed822, Copyright (c) 2000-2011 the Libav developers
built on Mar 22 2011 19:39:03 with gcc 4.5.3 20110224 (prerelease)
configuration: --cc=gcc45 --disable-stripping --mandir=/usr/local/man
--enable-gpl --enable-nonfree --enable-version3 --enable-libmp3lame
--enable-libspeex --enable-librtmp --enable-libfaac --enable-libx264
--enable-libxvid --enable-libschroedinger --enable-libvpx
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora
--enable-libvorbis --enable-shared --enable-pthreads --enable-x11grab
--enable-postproc --enable-pic --enable-runtime-cpudetect
libavutil 50. 39. 0 / 50. 39. 0
libavcodec 52.114. 0 / 52.114. 0
libavformat 52.103. 0 / 52.103. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1. 76. 0 / 1. 76. 0
libswscale 0. 12. 0 / 0. 12. 0
libpostproc 51. 2. 0 / 51. 2. 0
[NULL @ 0x825a23000] Probed with size=2048 and score=100
[flv @ 0x825a23000] All info found
[flv @ 0x825a23000] Estimating duration from bitrate, this may be inaccurate
Input #0, flv, from '<filename>':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0.0, 113, 1/1000: Video: h264 (Constrained Baseline), yuv420p,
432x320, 1/50, 25 tbr, 1k tbn, 50 tbc
Stream #0.1, 21, 1/1000: Audio: aac, 48000 Hz, 2 channels (FC), s16
At least one output file must be specified
Also the Reserved SBR extensions' warnings are displayed when playing the file:
[aac @ 0x827a6c000] Reserved SBR extensions are not implemented. Update your
FFmpeg version to the newest one from Git. If the problem still occurs, it means
that your file has a feature which has not been implemented.If you want to help,
upload a sample of this file to ftp://upload.libav.org/MPlayer/incoming/ and
contact the libav-devel mailing list.
What's working:
`ffmpeg -i <filename> -vn -acodec copy` produces a full-length working aac audio
file.
Issues:
1) ffplay playback is slow (as if I'm using mplayer and pressing '[' many
times).
2) mplayer plays the audio correctly but the video freezes after 2 seconds.
3) `ffmpeg -re -i <filename> -acodec copy -vcodec copy file.mp4` stops at:
frame= 148 fps= 58 q=-1.0 size= 214kB time=2.24 bitrate= 780.9kbits/s
I'm guessing that's the point where the video froze in mplayer.
I'm using -re to avoid this error:
[mp4 @ 0x825a3a000] Application provided invalid, non monotonically increasing
dts to muxer in stream 0: 422824 >= 133
----------
messages: 13881
priority: normal
status: new
substatus: new
title: Playback and (de)mux issues with flv/h264/AAC-SBR file
type: bug
______________________________________________
Libav issue tracker <[email protected]>
<https://roundup.libav.org/issue2668>
______________________________________________
