[FFmpeg-trac] #2530(avformat:new): Seeking in transport stream spams decoder error messages

[FFmpeg]

#2530: Seeking in transport stream spams decoder error messages
----------------------------------+---------------------------------------
             Reporter:  gjdfgh    |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avformat  |                  Version:  unspecified
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+---------------------------------------
 Summary of the bug:

 Seeking in a transport stream (taken from a bluray) causes the h264
 decoder to spam error messages.

 How to reproduce:

 Download the x264 demo disk http://x264.nl/x264_Demo_Blu-ray.torrent
 Mount the iso, mount x264\ Blu-ray.iso /mnt/temp should be enough.
 Run ffplay on one of the m2ts files, and seek in the file.
 Example:
 {{{
 % ffplay /mnt/temp/BDMV/STREAM/00000.m2ts
 ffplay version 1.0.6 Copyright (c) 2003-2013 the FFmpeg developers
   built on Mar 25 2013 16:52:47 with gcc 4.7 (Debian 4.7.2-5)
   configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector
 --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' --extra-
 ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-
 libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-
 pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-
 x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb
 --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-
 nonfree --disable-stripping --enable-libvpx --enable-libschroedinger
 --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg
 --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-
 aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus
 --libdir=/usr/lib/i386-linux-gnu --disable-vda --enable-libbluray
 --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl
 --enable-libass --enable-libopus --enable-fontconfig --enable-libdc1394
 --enable-libfdk-aac --disable-altivec --disab  libavutil      51. 73.101 /
 51. 73.101
   libavcodec     54. 59.100 / 54. 59.100
   libavformat    54. 29.104 / 54. 29.104
   libavdevice    54.  2.101 / 54.  2.101
   libavfilter     3. 17.100 /  3. 17.100
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, mpegts, from '/mnt/temp/BDMV/STREAM/00000.m2ts':
   Duration: 00:05:43.90, start: 599.966656, bitrate: 14462 kb/s
   Program 1
     Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p,
 1280x720 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
     Stream #0:1[0x1100]: Audio: dts (DTS-HD MA) ([134][0][0][0] / 0x0086),
 48000 Hz, 5.1(side), s16, 1536 kb/s
 Frame changed from size:0x0 to size:1280x720KB vq=    0KB sq=    0B f=0/0
 [dca @ 0x80e6540] Not a valid DCA framevq=    0KB sq=    0B f=0/0   f=0/0
 [h264 @ 0x80e57a0] Missing reference picture, default is 0
 [h264 @ 0x80e57a0] decode_slice_header error
 [h264 @ 0x80e57a0] Missing reference picture, default is 0
 [h264 @ 0x80e57a0] decode_slice_header error
 [h264 @ 0x80e57a0] Missing reference picture, default is 0
 [h264 @ 0x80e57a0] decode_slice_header error
 [h264 @ 0x80e57a0] Missing reference picture, default is 0
 [h264 @ 0x80e57a0] decode_slice_header error
 [h264 @ 0x80e9d20] Missing reference picture, default is 65684
     Last message repeated 2 times
 [h264 @ 0x80ea0e0] reference picture missing during reorder
     Last message repeated 3 times
 [h264 @ 0x80ea0e0] Missing reference picture, default is 65684
     Last message repeated 3 times
 [h264 @ 0x80e57a0] Missing reference picture, default is 65692
     Last message repeated 2 times
 [h264 @ 0x80ea0e0] reference picture missing during reorder
     Last message repeated 3 times
 [h264 @ 0x80ea0e0] Missing reference picture, default is 65684
     Last message repeated 3 times
 [h264 @ 0x80e57a0] Missing reference picture, default is 65692
     Last message repeated 2 times
 [h264 @ 0x80ea0e0] reference picture missing during reorder
     Last message repeated 3 times
 [h264 @ 0x80ea0e0] Missing reference picture, default is 65684
 [h264 @ 0x80ea0e0] Missing reference picture, default is 65684
 [h264 @ 0x80e9d20] Missing reference picture, default is 65684
     Last message repeated 2 times
 [h264 @ 0x80e9d20] Missing reference picture, default is 65684
     Last message repeated 1 times  8KB vq=    0KB sq=    0B f=0/0
 [h264 @ 0x80e57a0] Missing reference picture, default is 65692
     Last message repeated 2 times
 [h264 @ 0x80e9d20] Missing reference picture, default is 65684
     Last message repeated 5 times
 [h264 @ 0x80ea0e0] reference picture missing during reorder
 ...
 }}}

 I cut the ffplay output at a random point. At least in this case, decoding
 quickly resumes and you never see a broken picture. But it looks
 suspicious anyway. Normal decoding (without doing any seeking) never
 prints error messages in this case.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2530>
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