Opened 6 years ago
Closed 6 years ago
#4318 closed defect (needs_more_info)
vp8 rtsp copy stream not working
Reported by: | yurivale | Owned by: | |
---|---|---|---|
Priority: | normal | Component: | undetermined |
Version: | 2.5.2 | Keywords: | rtsp, webm, vp8 |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
I am trying to send and receive a webm file (only video) through a rtsp tcp tunnel with the following command line, but the receiver part produces an empty file:
Receiver site:
C:\temp\recv>ffmpeg -v 9 -loglevel 99 -report -y -f rtsp -rtsp_flags listen -rtsp_transport tcp -i rtsp://127.0.0.1:23020/live.sdp -vcodec copy -an out.webm
Transmit site:
C:\temp>ffmpeg -v 9 -loglevel 99 -report -i small.webm -vcodec copy -an -f rtsp -rtsp_transport tcp rtsp://127.0.0.1:23020/live.sdp
The same, but with mp4 files, instead is (correctly) working.
Receiver site:
C:\temp\recv>ffmpeg -v 9 -loglevel 99 -report -y -f rtsp -rtsp_flags listen -rtsp_transport tcp -i rtsp://127.0.0.1:23020/live.sdp -vcodec copy -an out.mp4
Transmit site:
C:\temp>ffmpeg -v 9 -loglevel 99 -report -i small.mp4 -vcodec copy -an -f rtsp -rtsp_transport tcp rtsp://127.0.0.1:23020/live.sdp
ffmpeg version 2.5.2 built on Dec 30 2014 17:29:04 with gcc 4.9.2 (GCC) zeranoe build
Attachments (8)
Change History (10)
Changed 6 years ago by yurivale
comment:1 Changed 6 years ago by yurivale
Using -dump option, looks like ffmpeg is not recognizing key frames (even the initial) in vp8 stream, so the copy stream is not starting.
Using -copyinkf option, overrides this behavior and the resulting file is correct.
comment:2 Changed 6 years ago by cehoyos
- Resolution set to needs_more_info
- Status changed from new to closed
Please reopen this ticket if you can reproduce the issue with current FFmpeg git head or if you believe that this is a regression.
webm receiver site