[FFmpeg-trac] #17(FFmpeg:new): FFPlay set different pts from ffmpeg for AVFilterBufferRef
FFmpeg
trac at avcodec.org
Fri Mar 25 12:24:44 CET 2011
#17: FFPlay set different pts from ffmpeg for AVFilterBufferRef
---------------------+----------------------
Reporter: chinshou | Owner: michael
Type: defect | Status: new
Priority: normal | Component: FFmpeg
Version: | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced: 0
Analyzed: 0 |
---------------------+----------------------
Comment (by chinshou):
Following is the ffplay output
------------------------------------------------------------
FFplay version git-774208b, Copyright (c) 2003-2011 the FFmpeg developers
built on Feb 18 2011 23:53:23 with gcc 4.4.2
configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32
--cross-prefix=i686-mingw32- --cc=i686-mingw32-gcc --enable-shared
--disable-static --enable-memalign-hack --target-os=mingw32 --enable-
libnut --enable-libvpx --disable-decoder=libvpx --disable-encoder=aac
--enable-librtmp --enable-libschroedinger --enable-avisynth --enable-gpl
--enable-version3 --enable-zlib --enable-bzlib --enable-libgsm --enable-
libfaac --enable-libfreetype --enable-pthreads --enable-libvorbis
--enable-nonfree --enable-libtheora --enable-libspeex --enable-libmp3lame
--enable-libxvid --enable-libx264 --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-avfilter --enable-runtime-cpudetect --enable-
libopenjpeg --extra-libs='-lx264 -lpthread -lrtmp -lpolarssl -lws2_32
-lwinmm '
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.93. 0 / 52.93. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.74. 0 / 1.74. 0
libswscale 0.12. 0 / 0.12. 0
[flv @ 006acb00] Estimating duration from bitrate, this may be inaccurate
Input #0, flv, from '1.flv':
Metadata:
metadatacreator : modify by youku.com in 20090909
hasKeyframes : true
hasVideo : true
hasAudio : true
hasMetadata : true
canSeekToEnd : false
duration : 263
datasize : 6140797
videosize : 4965962
videocodecid : 7
width : 320
height : 240
framerate : 15
videodatarate : 146
audiosize : 1136391
audiocodecid : 10
audiosamplerate : 22050
audiosamplesize : 16
stereo : true
audiodatarate : 32
filesize : 6142236
lasttimestamp : 263
lastkeyframetimestamp: 261
lastkeyframelocation: 6111316
Duration: 00:04:22.73, start: 0.000000, bitrate: 182 kb/s
Stream #0.0: Video: h264, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 149
kb/s, 15 tbr, 1k tbn, 30 tbc
Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 32 kb/s
rotate pts:67
rotate pts:133
rotate pts:200
rotate pts:267
rotate pts:333
rotate pts:400
rotate pts:467
rotate pts:533
rotate pts:600
...
Following is the ffmpeg output
----------------------------------------------------
FFmpeg version git-774208b, Copyright (c) 2000-2011 the FFmpeg developers
built on Feb 18 2011 23:53:23 with gcc 4.4.2
configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32
--cross-prefix=i686-mingw32- --cc=i686-mingw32-gcc --enable-shared
--disable-static --enable-memalign-hack --target-os=mingw32 --enable-
libnut --enable-libvpx --disable-decoder=libvpx --disable-encoder=aac
--enable-librtmp --enable-libschroedinger --enable-avisynth --enable-gpl
--enable-version3 --enable-zlib --enable-bzlib --enable-libgsm --enable-
libfaac --enable-libfreetype --enable-pthreads --enable-libvorbis
--enable-nonfree --enable-libtheora --enable-libspeex --enable-libmp3lame
--enable-libxvid --enable-libx264 --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-avfilter --enable-runtime-cpudetect --enable-
libopenjpeg --extra-libs='-lx264 -lpthread -lrtmp -lpolarssl -lws2_32
-lwinmm '
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.93. 0 / 52.93. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.74. 0 / 1.74. 0
libswscale 0.12. 0 / 0.12. 0
[flv @ 0072add0] Estimating duration from bitrate, this may be inaccurate
Input #0, flv, from '1.flv':
Metadata:
metadatacreator : modify by youku.com in 20090909
hasKeyframes : true
hasVideo : true
hasAudio : true
hasMetadata : true
canSeekToEnd : false
duration : 263
datasize : 6140797
videosize : 4965962
videocodecid : 7
width : 320
height : 240
framerate : 15
videodatarate : 146
audiosize : 1136391
audiocodecid : 10
audiosamplerate : 22050
audiosamplesize : 16
stereo : true
audiodatarate : 32
filesize : 6142236
lasttimestamp : 263
lastkeyframetimestamp: 261
lastkeyframelocation: 6111316
Duration: 00:04:22.73, start: 0.000000, bitrate: 182 kb/s
Stream #0.0: Video: h264, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 149
kb/s, 15 tbr, 1k tbn, 30 tbc
Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 32 kb/s
[buffer @ 005fdf70] w:320 h:240 pixfmt:yuv420p
Output #0, avi, to '23.avi':
Metadata:
metadatacreator : modify by youku.com in 20090909
hasKeyframes : true
hasVideo : true
hasAudio : true
hasMetadata : true
canSeekToEnd : false
duration : 263
datasize : 6140797
videosize : 4965962
videocodecid : 7
width : 320
height : 240
framerate : 15
videodatarate : 146
audiosize : 1136391
audiocodecid : 10
audiosamplerate : 22050
audiosamplesize : 16
stereo : true
audiodatarate : 32
filesize : 6142236
lasttimestamp : 263
lastkeyframetimestamp: 261
lastkeyframelocation: 6111316
ISFT : Lavf52.93.0
Stream #0.0: Video: mpeg4, yuv420p, 395x395 [PAR 1:1 DAR 1:1], q=2-31,
200 kb/s, 15 tbn, 15 tbc
Stream #0.1: Audio: mp2, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop encoding
rotate pts:67000
rotate pts:133000
rotate pts:200000
rotate pts:267000
rotate pts:333000
rotate pts:400000
rotate pts:467000
rotate pts:533000
rotate pts:600000
rotate pts:667000
rotate pts:733000
rotate pts:800000
rotate pts:867000
rotate pts:933000
................
You will see that the pts output from ffmpeg rotate filter is 1000 times
of ffplay rotate filter output.
It will cause problem for some filters which reply on pts such as subtitle
filter.
regards
ChinShou
--
Ticket URL: <http://avcodec.org/trac/ffmpeg/ticket/17#comment:2>
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