[FFmpeg-trac] #7181(ffplay:new): When playing this type of vp9 video, there are periods of a white screen.

FFmpeg trac at avcodec.org
Wed May 2 06:03:34 EEST 2018


#7181: When playing this type of vp9 video, there are periods of a white screen.
--------------------------------+-------------------------------------
             Reporter:  kj4qwt  |                     Type:  defect
               Status:  new     |                 Priority:  important
            Component:  ffplay  |                  Version:  2.6.9
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 % ffplay -v 9 -loglevel 99 ./Videos/Andrew\ Peterson\ Is\ He\ Worthy.webm
 ffplay version 2.6.8 Copyright (c) 2003-2016 the FFmpeg developers
   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
   configuration: --prefix=/usr --bindir=/usr/bin
 --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
 --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2
 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-
 strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64
 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-gnutls
 --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394
 --enable-libfaac --enable-nonfree --enable-libfdk-aac --enable-nonfree
 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-
 libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus --enable-
 libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex
 --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264
 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter
 --enable-avresample --enable-postproc --enable-pthreads --disable-static
 --enable-shared --enable-gpl --disable-debug --disable-stripping
 --shlibdir=/usr/lib64 --enable-runtime-cpudetect
   libavutil      54. 20.100 / 54. 20.100
   libavcodec     56. 26.100 / 56. 26.100
   libavformat    56. 25.101 / 56. 25.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 11.102 /  5. 11.102
   libavresample   2.  1.  0 /  2.  1.  0
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 [matroska,webm @ 0x7fa4b800ae60] Format matroska,webm probed with
 size=2048 and score=100
 st:0 removing common factor 1000000 from timebase
 st:1 removing common factor 1000000 from timebase
 [matroska,webm @ 0x7fa4b800ae60] Before avformat_find_stream_info() pos:
 544 bytes read:32768 seeks:0
 [matroska,webm @ 0x7fa4b800ae60] All info foundKB sq=    0B f=0/0
 [matroska,webm @ 0x7fa4b800ae60] After avformat_find_stream_info() pos:
 888 bytes read:32768 seeks:0 frames:3
 Input #0, matroska,webm, from './Videos/Andrew Peterson Is He
 Worthy.webm':
   Metadata:
     encoder         : Lavf56.25.101
   Duration: 00:04:30.74, start: 0.007000, bitrate: 349 kb/s
     Stream #0:0(eng), 2, 1/1000: Video: vp9, yuv420p, 640x360, 1/1000, SAR
 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
     Stream #0:1(eng), 1, 1/1000: Audio: opus, 48000 Hz, stereo, fltp
 (default)
 detected 2 logical cores
 [ffplay_abuffer @ 0x7fa4b8034c20] Setting 'sample_rate' to value '48000'
 [ffplay_abuffer @ 0x7fa4b8034c20] Setting 'sample_fmt' to value 'fltp'
 [ffplay_abuffer @ 0x7fa4b8034c20] Setting 'channels' to value '2'
 [ffplay_abuffer @ 0x7fa4b8034c20] Setting 'time_base' to value '1/48000'
 [ffplay_abuffer @ 0x7fa4b8034c20] Setting 'channel_layout' to value '0x3'
 [ffplay_abuffer @ 0x7fa4b8034c20] tb:1/48000 samplefmt:fltp
 samplerate:48000 chlayout:0x3
 [ffplay_abuffersink @ 0x7fa4b8035d20] auto-inserting filter 'auto-inserted
 resampler 0' between the filter 'ffplay_abuffer' and the filter
 'ffplay_abuffersink'
 [AVFilterGraph @ 0x7fa4b8054340] query_formats: 2 queried, 0 merged, 3
 already done, 0 delayed
 [auto-inserted resampler 0 @ 0x7fa4b8036ce0] ch:2 chl:stereo fmt:fltp
 r:48000Hz -> ch:2 chl:stereo fmt:s16 r:48000Hz
 Audio frame changed from rate:48000 ch:2 fmt:fltp layout:stereo serial:-1
 to rate:48000 ch:2 fmt:fltp layout:stereo serial:1
 [ffplay_abuffer @ 0x7fa4a0003040] Setting 'sample_rate' to value '48000'
 [ffplay_abuffer @ 0x7fa4a0003040] Setting 'sample_fmt' to value 'fltp'
 [ffplay_abuffer @ 0x7fa4a0003040] Setting 'channels' to value '2'
 [ffplay_abuffer @ 0x7fa4a0003040] Setting 'time_base' to value '1/48000'
 [ffplay_abuffer @ 0x7fa4a0003040] Setting 'channel_layout' to value '0x3'
 [ffplay_abuffer @ 0x7fa4a0003040] tb:1/48000 samplefmt:fltp
 samplerate:48000 chlayout:0x3
 [ffplay_abuffersink @ 0x7fa4a00041c0] auto-inserting filter 'auto-inserted
 resampler 0' between the filter 'ffplay_abuffer' and the filter
 'ffplay_abuffersink'
 [AVFilterGraph @ 0x7fa4a0002d40] query_formats: 2 queried, 0 merged, 3
 already done, 0 delayed
 [auto-inserted resampler 0 @ 0x7fa4a00054e0] ch:2 chl:stereo fmt:fltp
 r:48000Hz -> ch:2 chl:stereo fmt:s16 r:48000Hz
 Video frame changed from size:0x0 format:none serial:-1 to size:640x360
 format:yuv420p serial:1
 [ffplay_buffer @ 0x7fa498003be0] Setting 'video_size' to value '640x360'
 [ffplay_buffer @ 0x7fa498003be0] Setting 'pix_fmt' to value '0'
 [ffplay_buffer @ 0x7fa498003be0] Setting 'time_base' to value '1/1000'
 [ffplay_buffer @ 0x7fa498003be0] Setting 'pixel_aspect' to value '0/1'
 [ffplay_buffer @ 0x7fa498003be0] Setting 'frame_rate' to value
 '24000/1001'
 [ffplay_buffer @ 0x7fa498003be0] w:640 h:360 pixfmt:yuv420p tb:1/1000
 fr:24000/1001 sar:0/1 sws_param:
 [ffplay_crop @ 0x7fa498004a60] Setting 'out_w' to value 'floor(in_w/2)*2'
 [ffplay_crop @ 0x7fa498004a60] Setting 'out_h' to value 'floor(in_h/2)*2'
 [AVFilterGraph @ 0x7fa4980030e0] query_formats: 3 queried, 2 merged, 0
 already done, 0 delayed
 [ffplay_crop @ 0x7fa498004a60] w:640 h:360 sar:0/1 -> w:640 h:360 sar:0/1
 [AVIOContext @ 0x7fa4b80008c0] Statistics: 262144 bytes read, 0 seeks

 [admin at new-host ~]$

 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7181>
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