[FFmpeg-trac] #6058(undetermined:new): cuvid: Transcoding hangs after several files processed

[FFmpeg]

#6058: cuvid: Transcoding hangs after several files processed
-------------------------------------+-------------------------------------
             Reporter:  slomkowski   |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  nvenc        |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by slomkowski):

 Since ffmpeg doesn't crash, just hangs or waits for something, I cannot
 provide backtrace. I just run ffmpeg once again with debug level, and this
 my console output (note that other ffmpeg instance is still hanged in
 background).

 {{{
 ffmpeg version N-82987-gd800d48 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 4.9.2 (Debian 4.9.2-10)
   configuration: --prefix=../ffmpeg_build --enable-gpl --disable-debug
 --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopus
 --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree
 --enable-nvenc --enable-libnpp --enable-vdpau --enable-cuda --enable-cuvid
   libavutil      55. 43.100 / 55. 43.100
   libavcodec     57. 70.101 / 57. 70.101
   libavformat    57. 61.100 / 57. 61.100
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 68.100 /  6. 68.100
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 Splitting the commandline.
 Reading option '-y' ... matched as option 'y' (overwrite output files)
 with argument '1'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument 'debug'.
 Reading option '-hwaccel_device' ... matched as option 'hwaccel_device'
 (select a device for HW acceleration) with argument '0'.
 Reading option '-hwaccel' ... matched as option 'hwaccel' (use HW
 accelerated decoding) with argument 'cuvid'.
 Reading option '-c:v' ... matched as option 'c' (codec name) with argument
 'mpeg2_cuvid'.
 Reading option '-i' ... matched as input url with argument
 '/mnt/rtvprocessing/artifacts/2017-01-05/RV_N24____2017-01-05_09.14__vsn0
 /raw-ts-file.ts'.
 Reading option '-c:v' ... matched as option 'c' (codec name) with argument
 'h264_nvenc'.
 Reading option '-rc' ... matched as AVOption 'rc' with argument 'vbr'.
 Reading option '-movflags' ... matched as AVOption 'movflags' with
 argument '+faststart'.
 Reading option 'video-file.mp4' ... matched as output url.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option y (overwrite output files) with argument 1.
 Applying option loglevel (set logging level) with argument debug.
 Successfully parsed a group of options.
 Parsing a group of options: input url
 /mnt/rtvprocessing/artifacts/2017-01-05/RV_N24____2017-01-05_09.14__vsn0
 /raw-ts-file.ts.
 Applying option hwaccel_device (select a device for HW acceleration) with
 argument 0.
 Applying option hwaccel (use HW accelerated decoding) with argument cuvid.
 Applying option c:v (codec name) with argument mpeg2_cuvid.
 Successfully parsed a group of options.
 Opening an input file:
 /mnt/rtvprocessing/artifacts/2017-01-05/RV_N24____2017-01-05_09.14__vsn0
 /raw-ts-file.ts.
 [file @ 0x21d5060] Setting default whitelist 'file,crypto'
 [mpegts @ 0x21d4760] Format mpegts probed with size=2048 and score=50
 [mpegts @ 0x21d4760] stream=0 stream_type=2 pid=3ff prog_reg_desc=
 [mpegts @ 0x21d4760] stream=1 stream_type=3 pid=400 prog_reg_desc=
 [mpegts @ 0x21d4760] stream=2 stream_type=6 pid=23 prog_reg_desc=
 [mpegts @ 0x21d4760] Before avformat_find_stream_info() pos: 0 bytes
 read:32768 seeks:0 nb_streams:3
 [mpegts @ 0x21d4760] parser not found for codec dvb_teletext, packets or
 times may be invalid.
     Last message repeated 1 times
 [mpeg2video @ 0x21d9220] Invalid frame dimensions 0x0.
     Last message repeated 10 times
 [mpegts @ 0x21d4760] max_analyze_duration 5000000 reached at 5000000
 microseconds st:2
 [mpegts @ 0x21d4760] PES packet size mismatch
 [mpegts @ 0x21d4760] After avformat_find_stream_info() pos: 0 bytes
 read:3330192 seeks:2 frames:449
 Input #0, mpegts, from
 '/mnt/rtvprocessing/artifacts/2017-01-05/RV_N24____2017-01-05_09.14__vsn0
 /raw-ts-file.ts':
   Duration: 00:18:00.88, start: 54479.140411, bitrate: 3785 kb/s
   Program 17503
     Stream #0:0[0x3ff], 118, 1/90000: Video: mpeg2video (Main), 1
 reference frame ([2][0][0][0] / 0x0002), yuv420p(tv, top first, left),
 720x576 [SAR 64:45 DAR 16:9], 0/1, 25 fps, 25 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x400](deu), 204, 1/90000: Audio: mp2 ([3][0][0][0] /
 0x0003), 48000 Hz, stereo, s16p, 192 kb/s (clean effects)
     Stream #0:2[0x23](deu), 127, 1/90000: Subtitle: dvb_teletext
 ([6][0][0][0] / 0x0006)
 Successfully opened the file.
 Parsing a group of options: output url video-file.mp4.
 Applying option c:v (codec name) with argument h264_nvenc.
 Successfully parsed a group of options.
 Opening an output file: video-file.mp4.
 [file @ 0x22049a0] Setting default whitelist 'file,crypto'
 Successfully opened the file.
 Setting up CUVID transcoding
 }}}


 Just waits on `Setting up CUVID transcoding`. Also all ffmpeg instances
 consume 100% CPU.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6058#comment:5>
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