Hi Mohammed, Could you create a ticket on https://trac.ffmpeg.org/ and upload the sample pls.
Thanks, Andriy On Thu, 2 Jul 2020 at 07:24, Mohammed Bey Ahmed Khernache < [email protected]> wrote: > Hello, > I am facing an error when trying to decode HEVC-coded content for some > video sequences. > I varied the video resolution as follows: > 2160p: decoded successfully > 1600p: decoded successfully > 1080p: error > 720p: error > > When I try to decode low resolutions (720p and 1080p), ffmpeg outputs the > following error message: "Output file is empty, nothing was encoded (check > -ss / -t / -frames parameters if used)" > > Below are the command line and the output. > > ------------------------------------------------------------------------------- > root@linaro-developer:~# ffmpeg -vcodec hevc_v4l2m2m -i > vary_resolution/kimono/AMP_D_Hisilicon_3_1080p_fps_25.265 -f null out.null > ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers > built with gcc 8 (Debian 8.3.0-6) > configuration: --enable-gpl --enable-nonfree --enable-static > --disable-shared --enable-pthreads --enable-neon --enable-thumb > --enable-optimizations --enable-libv4l2 > libavutil 56. 51.100 / 56. 51.100 > libavcodec 58. 91.100 / 58. 91.100 > libavformat 58. 45.100 / 58. 45.100 > libavdevice 58. 10.100 / 58. 10.100 > libavfilter 7. 85.100 / 7. 85.100 > libswscale 5. 7.100 / 5. 7.100 > libswresample 3. 7.100 / 3. 7.100 > libpostproc 55. 7.100 / 55. 7.100 > Input #0, hevc, from > 'vary_resolution/kimono/AMP_D_Hisilicon_3_1080p_fps_25.265': > Duration: N/A, bitrate: N/A > Stream #0:0: Video: hevc (Main), yuv420p(tv), 1920x1080, 25 fps, 25 > tbr, 1200k tbn, 25 tbc > [hevc_v4l2m2m @ 0xaaaae2112410] Using device /dev/video0 > [hevc_v4l2m2m @ 0xaaaae2112410] driver 'qcom-venus' on card 'Qualcomm Venus > video decoder' in mplane mode > [hevc_v4l2m2m @ 0xaaaae2112410] requesting formats: output=HEVC > capture=NV12 > Stream mapping: > Stream #0:0 -> #0:0 (hevc (hevc_v4l2m2m) -> wrapped_avframe (native)) > Press [q] to stop, [?] for help > [hevc_v4l2m2m @ 0xaaaae2112410] VIDIOC_G_FMT ioctl > Last message repeated 99 times > Output #0, null, to 'out.null': > Metadata: > encoder : Lavf58.45.100 > Stream #0:0: Video: wrapped_avframe, yuv420p, 1920x1080, q=2-31, 200 > kb/s, 25 fps, 25 tbn, 25 tbc > Metadata: > encoder : Lavc58.91.100 wrapped_avframe > frame= 0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed= > 0x > video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB > muxing overhead: unknown > Output file is empty, nothing was encoded (check -ss / -t / -frames > parameters if used) > > ------------------------------------------------------------------------------- > > *Note*: when I drop the "-vcodec hevc_v4l2m2m" option, the decoding is done > successfully. But, that's not what I am lookign for. I need the hardware > acceleration. > > Any help is welcome. > > Best regards > Mohammed > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
