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    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
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  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

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Sur d’autres sites (6060)

  • ffmpeg low speed on AMD encoder

    13 octobre 2022, par Peter Czask

    I'm encoding some videos with ffmpeg, if I use only CPU the speed it's about 1x, so as I have an AMD RX580 I tried with amd encoding, but only increased the speed to 1.5x. Is this ok ? Should it go faster ?

    


    My command is :

    


    ffmpeg -i 5.mp4 -c:v h264_amf -lavfi "[0:v]scale=1920:1080,boxblur=luma_radius=min(h\,w)/8:luma_power=1:chroma_radius=min(cw\,ch)/8:chroma_power=1[bg];[0:v]scale=-1:1080[ov];[bg][ov]overlay=(W-w)/2:(H-h)/2,crop=w=1920:h=1080" output.mp4


    


    Can I do anything to increase the speed ?

    


    Thanks

    


  • FFMPEG Without Headers is Causing Video To Be Height 0X0

    21 novembre 2022, par Devin Dixon

    I am grabbing a stream from X11 and streaming it to other sources like Node Media Server and Twitch. Except, I get audio only with no video and the resolution size says 0X0.

    


    My ffmpeg is command is this :

    


     /usr/bin/ffmpeg -hide_banner -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -video_size 1920x1080 -y -v info -f x11grab -draw_mouse 0 -r 60 -s 1920x1080 -thread_queue_size 14000 -i :0.0+0,0 -f alsa -thread_queue_size 14000 -i plug:bsnoop -acodec aac -strict -2 -ar 44100 -b:a 128k -af aresample=async=1 -c:v h264_vaapi -vf format=nv12,hwupload,scale_vaapi=w=1920:h=1080 -attempt_recovery 1 -max_recovery_attempts 2 -drop_pkts_on_overflow 1 -video_size 1920x1080 -crf 19 -preset medium -maxrate 14000k -bufsize 14000k -r 60 -crf 25 -g 120 -tune zerolatency -f flv rtmp://[some_other_source]


    


    The ffmpeg output is as follows :

    


    2022-11-21 13:42:45.527 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Codec AVOption crf (Select the quality for constant quality mode) specified for output file #0 (rtmp://[some_other_sorce]) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2022-11-21 13:42:45.527 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Codec AVOption tune (The metric that the encoder tunes for. Automatically chosen by the encoder by default) specified for output file #0 (rtmp://[some_other_source]) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2022-11-21 13:42:45.527 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Codec AVOption preset (Encoding preset) specified for output file #0 (rtmp://relay.bingewave.com/live/e3057272-271d-40d5-90d1-f9065c5dfa37-broadcast?sign=1669642928-17aa73baeaedaad786140b5b2cca9d2b) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2022-11-21 13:42:45.527 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Codec AVOption preset (Encoding preset) specified for output file #1 (rtmp://127.0.0.1:1935/live/e3057272-271d-40d5-90d1-f9065c5dfa37-broadcast?sign=1669642928-17aa73baeaedaad786140b5b2cca9d2b) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2022-11-21 13:42:45.527 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Codec AVOption tune (The metric that the encoder tunes for. Automatically chosen by the encoder by default) specified for output file #1 (rtmp://127.0.0.1:1935/live/['for_reording']) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Codec AVOption crf (Select the quality for constant quality mode) specified for output file #1 (rtmp://127.0.0.1:1935/live/e3057272-271d-40d5-90d1-f9065c5dfa37-broadcast?sign=1669642928-17aa73baeaedaad786140b5b2cca9d2b) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Stream mapping:
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_vaapi))
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #1:0 -> #0:1 (pcm_s16le (native) -> aac (native))
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #0:0 -> #1:0 (rawvideo (native) -> h264 (h264_vaapi))
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #1:0 -> #1:1 (pcm_s16le (native) -> mp3 (libmp3lame))
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Press [q] to stop, [?] for help
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df06980] No quality level set; using default (20).
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df06980] Buffering settings are ignored in CQP RC mode.
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df06980] Driver does not support some wanted packed headers (wanted 0xd, found 0).
2022-11-21 13:42:45.550 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df06980] Driver does not support packed sequence headers, but a global header is requested.
2022-11-21 13:42:45.583 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df06980] No global header will be written: this may result in a stream which is not usable for some purposes (e.g. not muxable to some containers).
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df0a700] Driver does not support some wanted packed headers (wanted 0xd, found 0).
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df0a700] Driver does not support packed sequence headers, but a global header is requested.
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [h264_vaapi @ 0x55a02df0a700] No global header will be written: this may result in a stream which is not usable for some purposes (e.g. not muxable to some containers).
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Output #0, flv, to 'rtmp://relay.bingewave.com/live/[some_other_source]':
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Metadata:
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:     encoder         : Lavf59.27.100
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #0:0: Video: h264 (High) ([7][0][0][0] / 0x0007), vaapi(tv, progressive), 1920x1080, q=2-31, 60 fps, 1k tbn
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:     Metadata:
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:       encoder         : Lavc59.37.100 h264_vaapi
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:     Metadata:
2022-11-21 13:42:45.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:       encoder         : Lavc59.37.100 aac
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: Output #1, flv, to 'rtmp://127.0.0.1:1935/live/e3057272-271d-40d5-90d1-f9065c5dfa37-broadcast?sign=1669642928-17aa73baeaedaad786140b5b2cca9d2b':
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Metadata:
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:     encoder         : Lavf59.27.100
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #1:0: Video: h264 (High) ([7][0][0][0] / 0x0007), vaapi(tv, progressive), 1920x1080, q=2-31, 15000 kb/s, 60 fps, 1k tbn
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:     Metadata:
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:       encoder         : Lavc59.37.100 h264_vaapi
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:   Stream #1:1: Audio: mp3 ([2][0][0][0] / 0x0002), 48000 Hz, stereo, s16p
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:     Metadata:
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42:       encoder         : Lavc59.37.100 libmp3lame
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: frame=    1 fps=0.0 q=-0.0 q=-0.0 size=       7kB time=00:00:00.06 bitrate= 875.5kbits/s speed=1.31x    
2022-11-21 13:42:46.584 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: frame=   31 fps=0.0 q=-0.0 q=-0.0 size=     281kB time=00:00:00.55 bitrate=4133.2kbits/s speed=1.01x    
2022-11-21 13:42:47.325 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: frame=   60 fps= 57 q=-0.0 q=-0.0 size=     546kB time=00:00:01.18 bitrate=3774.7kbits/s speed=1.12x    
2022-11-21 13:42:47.325 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: frame=   91 fps= 58 q=-0.0 q=-0.0 size=     828kB time=00:00:01.69 bitrate=4003.3kbits/s speed=1.08x    
2022-11-21 13:42:47.325 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [flv @ 0x55a02df10e00] Failed to update header with correct duration.
2022-11-21 13:42:47.325 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [flv @ 0x55a02df10e00] Failed to update header with correct filesize.
2022-11-21 13:42:47.325 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [flv @ 0x55a02df15500] Failed to update header with correct duration.
2022-11-21 13:42:47.325 INFO: [658] LoggingUtils$Companion$OutputLogger$1.invoke$lambda-0#42: [flv @ 0x55a02df15500] Failed to update header with correct filesize.


    


    I've noticed there are several errors the headers going out. For VAAPI, how do I set resolution header ?

    


  • How to make a C library that does FFMPEG queries ?

    30 novembre 2022, par nevermindmyname

    Having FFMPEG binaries compiled for ARM, what's the best way to make a C library that contains methods for different operations for FFMPEG like :

    


    myffmpeg.scale("1920", "1080");


    


    Use system() to replicate a CLI might be an option, but I don't know if it's worth if I'd want use that library on other platforms like Android/NDK. I don't mind on use libav* libraries because that would be a very time-expensive task

    


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