[FFmpeg-trac] #10100(undetermined:new): qsv encoder missing video when live transcoding
FFmpeg
trac at avcodec.org
Fri Dec 9 11:19:57 EET 2022
#10100: qsv encoder missing video when live transcoding
--------------------------------------+----------------------------------
Reporter: Liroy2003 | Type: defect
Status: new | Priority: normal
Component: undetermined | Version: 5.1.2
Keywords: qsv | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
--------------------------------------+----------------------------------
Summary of the bug: When using mpeg2_qsv encoder for live transcoding UDP
multicast to UDP multicast signals, the video stream is only available for
some seconds, after that the video stream is empty.
How to reproduce:
{{{
% ffmpeg -init_hw_device qsv=qsv:MFX_IMPL_hw_any -hwaccel_output_format
qsv -c:v h264_qsv -i
"udp://239.200.101.11:1234?fifo_size=1000000&overrun_nonfatal=1" -c:v
mpeg2_qsv -vf
"format=nv12,hwupload=extra_hw_frames=64,deinterlace_qsv,scale_qsv=720:576,format=qsv"
-b:v 5000k -minrate 5000k -maxrate 5000k -muxrate 7000k -r 25 -pcr_period
40 -flags:v +ildct+ilme -top 0 -aspect 16:9 -c:a mp2 -b:a 192k -c:s copy
-f mpegts "udp://239.123.123.8:1234?pkt_size=1316&bitrate=12000000"
ffmpeg version 5.1.2-0ubuntu1~22.04.sav1.1 Copyright (c) 2000-2022 the
FFmpeg developers
built with gcc 11 (Ubuntu 11.3.0-1ubuntu1~22.04)
configuration: --prefix=/usr --extra-version='0ubuntu1~22.04.sav1.1'
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
--disable-stripping --enable-gnutls --enable-ladspa --enable-lcms2
--enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
--enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d
--enable-libflite --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-
libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librabbitmq --enable-
librubberband --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx
--enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid
--enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-
omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2
--enable-sndio --enable-pocketsphinx --enable-librsvg --enable-libjxl
--enable-librist --enable-libvmaf --enable-crystalhd --enable-libmfx
--enable-libsvtav1 --enable-libdc1394 --enable-libdrm --enable-libiec61883
--enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo
--enable-librav1e --enable-shared
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
}}}
When testing with VLC or FFprobe the stream can be captured directly after
the FFmpeg command is issued for some seconds. After that FFprobe can not
find the codec parameters for the video stream and VLC can only play the
audio. I tried different OS and FFmpeg versions but the problems stays the
same.
Here is the FFprobe Output directly after starting the ffmpeg command:
{{{
ffprobe -i udp://239.123.123.8:1234
ffprobe version 5.1.2-0ubuntu1~22.04.sav1.1 Copyright (c) 2007-2022 the
FFmpeg developers
built with gcc 11 (Ubuntu 11.3.0-1ubuntu1~22.04)
configuration: --prefix=/usr --extra-version='0ubuntu1~22.04.sav1.1'
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
--disable-stripping --enable-gnutls --enable-ladspa --enable-lcms2
--enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
--enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d
--enable-libflite --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-
libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librabbitmq --enable-
librubberband --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx
--enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid
--enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-
omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2
--enable-sndio --enable-pocketsphinx --enable-librsvg --enable-libjxl
--enable-librist --enable-libvmaf --enable-crystalhd --enable-libmfx
--enable-libsvtav1 --enable-libdc1394 --enable-libdrm --enable-libiec61883
--enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo
--enable-librav1e --enable-shared
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
Input #0, mpegts, from 'udp://239.123.123.8:1234':
Duration: N/A, start: 0.841256, bitrate: 5192 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, bt709, progressive), 720x576 [SAR 64:45 DAR 16:9], 5000 kb/s,
25 fps, 25 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 5000000/0/0 buffer size: 3719168
vbv_delay: N/A
Stream #0:1[0x101](deu): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
stereo, fltp, 192 kb/s
Stream #0:2[0x102](deu): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006),
492x250
}}}
Here is the output after some seconds from ffprobe
{{{
ffprobe -i udp://239.123.123.8:1234
ffprobe version 5.1.2-0ubuntu1~22.04.sav1.1 Copyright (c) 2007-2022 the
FFmpeg developers
built with gcc 11 (Ubuntu 11.3.0-1ubuntu1~22.04)
configuration: --prefix=/usr --extra-version='0ubuntu1~22.04.sav1.1'
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
--disable-stripping --enable-gnutls --enable-ladspa --enable-lcms2
--enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
--enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d
--enable-libflite --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-
libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librabbitmq --enable-
librubberband --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx
--enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid
--enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-
omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2
--enable-sndio --enable-pocketsphinx --enable-librsvg --enable-libjxl
--enable-librist --enable-libvmaf --enable-crystalhd --enable-libmfx
--enable-libsvtav1 --enable-libdc1394 --enable-libdrm --enable-libiec61883
--enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo
--enable-librav1e --enable-shared
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
[mpeg2video @ 0x55d9bfc61ac0] Invalid frame dimensions 0x0.
Last message repeated 171 times
[mpegts @ 0x55d9bfc39700] Could not find codec parameters for stream 0
(Video: mpeg2video ([2][0][0][0] / 0x0002), none(tv, progressive)):
unspecified size
Consider increasing the value for the 'analyzeduration' (0) and
'probesize' (5000000) options
Input #0, mpegts, from 'udp://239.123.123.8:1234':
Duration: N/A, start: 150.640722, bitrate: N/A
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video ([2][0][0][0] / 0x0002), none(tv,
progressive), 25 fps, 25 tbr, 90k tbn
Stream #0:1[0x101](deu): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
stereo, fltp, 192 kb/s
Stream #0:2[0x102](deu): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006),
492x250
ntv at ntv:~$
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10100>
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