Opened 5 months ago

#6510 new defect

mpeg2_cuvid with de-interlacing freezes after minutes

Reported by: ahakon Owned by:
Priority: normal Component: undetermined
Version: git-master Keywords:
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Hi,

When decoding MPEG-2 video using the hw codec "mpeg2_cuvid" with deinterlacing enabled, then after several minutes the video will freeze (it will be two frames repeating and swapping forever). The output continues, so the process doesn't stop and the audio works without errors. The problem is the video, as the input to the encoder will be the same two frames.

How to reproduce:

ffmpeg \
 \
-threads 0 -ignore_unknown \
-hwaccel cuvid \
-c:v mpeg2_cuvid -deint 2 -drop_second_field 1 -resize 1280x720 \
-i 'http://my-ts-server/channel_ts' \
 \
-c:v:0 h264_nvenc -preset:v:0 medium -profile:v:0 main -rc:v:0 cbr -cbr:v:0 1 \
 -b:v:0 2m -minrate:v:0 2m -maxrate:v:0 2m -bufsize:v:0 2m \
 -aspect:v:0 16:9 -bsf:v:0 h264_mp4toannexb \
 -surfaces:v:0 32 \
 \
-c:a:0 libfdk_aac -b:a:0 128k \
 \
-f mpegts \
 -resend_headers 1 -mpegts_copyts 0 \
 'udp://224.0.0.1:12345?pkt_size=1316'

The input is a MPEG-TS with only one SD program with interlaced video.

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