#8774: "Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)" error message
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Reporter: | Owner:
Mohammed.Bey | Mohammed.Bey
Type: defect | Status: open
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: v4l2m2m | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Mohammed.Bey):
Replying to [comment:6 taliho]:
> - Can you confirm that you applied this patch before decoding the 720p
stream?
>
https://patchwork.ffmpeg.org/project/ffmpeg/patch/[email protected]/
> And that the patch fixes a seg fault? (this is how I understand the ML
thread)
Yes. I applied the patch before compiling ffmpeg. I think it works since
the error of " free(): double free detected in tcache 2" has disappeared.
> - Please post console output with -loglevel debug option set. Post the
log for the case that works and when it doesn't work.
Attached are the outputs:
--------- 1- when it works (2160p) --------------------------------------
"output_loglevel_debug_ffmpeg_4_3_resolution_2160p.txt" file.
-------- 2- when it does not work (720p) --------------------------------
"output_loglevel_debug_ffmpeg_4_3_resolution_720p.txt" file.
> - Did release 3.4.7 ever work when decoding the 720p stream?
No. I re-compiled ffmpeg-3.4.8 (the latest stable version of 3.4).
Attached are the command line and the output:
"output_loglevel_debug_ffmpeg_3_4_8_720p.txt" file.
> - Please check output of dmesg when decoding fails and post the results
if they contain error messages from the driver
"dmesg" output is in the
"output_loglevel_debug_ffmpeg_4_3_resolution_720p.txt" attached file.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8774#comment:7>
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