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Sur d’autres sites (9758)
-
ffmpeg command not interpreted correcly from cron
16 avril 2022, par Andre Lörchneron my raspberry pi I'm trying to run a script every 30 minutes that restarts a video stream. Reason is the stream is consistently running into hickups after roughly 35 minutes and stops a few minutes after.
I tried fixing the root problem without any success so far, so an easier and valid workaround is to just restart the stream.


I created a script
restart_stream.shthat kills the previous stream and immediately starts it again.

#!/bin/bash

killall -r libcamera-vid ffmpeg
libcamera-vid -t 0 --framerate 30 --width 1280 --height 720 -b 2000000 -o - --nopreview | ffmpeg -f h264 -thread_queue_size 4096 -i - -f pulse -ar 44100 -ac 2 -acodec pcm_s16le -thread_queue_size 4096 -i default -vcodec copy -acodec aac -ab 128k -fflags genpts -fflags igndts -f fifo -fifo_format flv -map 0:v -map 1:a? -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 2 rtmp://a.rtmp.youtube.com/live2/<key>
</key>

cron job


*/30 7-19 * * * /bin/restart_stream.sh >/tmp/stream.log 2>&1


Running this script manually from the ssh console works perfectly fine but once I run it from cron it fails with the following error


[1:41:01.657471459] [2138] INFO RPI raspberrypi.cpp:1326 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unic>
[1:41:01.658232799] [2136] INFO Camera camera.cpp:1028 configuring streams: (0) 1280x720-YUV420
[1:41:01.659060988] [2138] INFO RPI raspberrypi.cpp:747 Sensor: /base/soc/i2c0mux/i2c@1/ov5647@36 - Selected sensor >
[1:41:01.698525343] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Saturation = 1.000000
[1:41:01.698798789] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Contrast = 1.000000
[1:41:01.698840990] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Brightness = 0.000000
[1:41:01.698877617] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: AwbMode = 0
[1:41:01.698910745] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Sharpness = 1.000000
[1:41:01.698947187] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: ExposureValue = 0.000000
[1:41:01.698983203] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: AeExposureMode = 0
[1:41:01.699014646] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: FrameDurationLimits = [ 33333, 33333 ]
[1:41:01.699050903] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: AeMeteringMode = 0
[1:41:01.699082938] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: NoiseReductionMode = 1
ffmpeg version 4.3.3-0+rpt2+deb11u1 Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 10 (Raspbian 10.2.1-6+rpi1)
 configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/arm-linux-gn>
 WARNING: library configuration mismatch
 avutil configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avcodec configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avformat configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avdevice configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avfilter configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avresample configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 swscale configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 swresample configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 postproc configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 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
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Input #0, h264, from 'pipe:':
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720, 30 fps, 30 tbr, 1200k tbn, 60 tbc
default: No such process


It seems to interpret the command differently and not treat
defaultwithin the ffmpeg call as a parameter.

-
ffmpeg command not interpreted correctly from cron
16 avril 2022, par Andre Lörchneron my raspberry pi I'm trying to run a script every 30 minutes that restarts a video stream. Reason is the stream is consistently running into hickups after roughly 35 minutes and stops a few minutes after.
I tried fixing the root problem without any success so far, so an easier and valid workaround is to just restart the stream.


I created a script
restart_stream.shthat kills the previous stream and immediately starts it again.

#!/bin/bash

killall -r libcamera-vid ffmpeg
libcamera-vid -t 0 --framerate 30 --width 1280 --height 720 -b 2000000 -o - --nopreview | ffmpeg -f h264 -thread_queue_size 4096 -i - -f pulse -ar 44100 -ac 2 -acodec pcm_s16le -thread_queue_size 4096 -i default -vcodec copy -acodec aac -ab 128k -fflags genpts -fflags igndts -f fifo -fifo_format flv -map 0:v -map 1:a? -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 2 rtmp://a.rtmp.youtube.com/live2/<key>
</key>

cron job


*/30 7-19 * * * /bin/restart_stream.sh >/tmp/stream.log 2>&1


Running this script manually from the ssh console works perfectly fine but once I run it from cron it fails with the following error


[1:41:01.657471459] [2138] INFO RPI raspberrypi.cpp:1326 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unic>
[1:41:01.658232799] [2136] INFO Camera camera.cpp:1028 configuring streams: (0) 1280x720-YUV420
[1:41:01.659060988] [2138] INFO RPI raspberrypi.cpp:747 Sensor: /base/soc/i2c0mux/i2c@1/ov5647@36 - Selected sensor >
[1:41:01.698525343] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Saturation = 1.000000
[1:41:01.698798789] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Contrast = 1.000000
[1:41:01.698840990] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Brightness = 0.000000
[1:41:01.698877617] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: AwbMode = 0
[1:41:01.698910745] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: Sharpness = 1.000000
[1:41:01.698947187] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: ExposureValue = 0.000000
[1:41:01.698983203] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: AeExposureMode = 0
[1:41:01.699014646] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: FrameDurationLimits = [ 33333, 33333 ]
[1:41:01.699050903] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: AeMeteringMode = 0
[1:41:01.699082938] [2145] INFO IPARPI raspberrypi.cpp:626 Request ctrl: NoiseReductionMode = 1
ffmpeg version 4.3.3-0+rpt2+deb11u1 Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 10 (Raspbian 10.2.1-6+rpi1)
 configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/arm-linux-gn>
 WARNING: library configuration mismatch
 avutil configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avcodec configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avformat configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avdevice configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avfilter configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 avresample configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 swscale configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 swresample configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 postproc configuration: --prefix=/usr --extra-version=0+rpt2+deb11u1 --toolchain=hardened --incdir=/usr/include/>
 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
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Input #0, h264, from 'pipe:':
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720, 30 fps, 30 tbr, 1200k tbn, 60 tbc
default: No such process


It seems to interpret the command differently and not treat
defaultwithin the ffmpeg call as a parameter.

-
Can ffmpeg write metadata encoder when transcoding alac/flac to aac audio file ?
11 juin 2022, par David II have a collection of alac and flac files from Bandcamp and an ffmpeg instance compiled with libfdk_aac https://trac.ffmpeg.org/wiki/CompilationGuide/Centos#libfdk_aac and am trying to convert these to lossy audio aac files for non-critical listening.


With
ffmpeg -i Liholesie\ -\ Shamanic\ Twilight\ -\ 09\ Gray\ Wings.m4a -c:a libfdk_aac -vbr 4 -c:v copy 09_Gray_wings_vbr4.m4aan expected aac .m4a audio file is produced, album art included, works well. There's one slight detail missing :

During the ffmpeg conversion process ffmpeg says :


Output #0, ipod, to '09_Gray_wings_vbr4.m4a':
 Metadata:
 major_brand : M4A 
 minor_version : 512
 compatible_brands: M4A isomiso2
 title : Gray Wings
 artist : Liholesie
 album_artist : Liholesie
 album : Shamanic Twilight
 comment : Visit https://liholesie.bandcamp.com
 date : 2021
 track : 9
 encoder : Lavf59.24.100
 Stream #0:0: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 700x700 [SAR 72:72 DAR 1:1], q=2-31, 90k tbr, 90k tbn (attached pic)
 Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16 (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc59.33.100 libfdk_aac 
..




and the file produced looks like that when ffprobed except that the Metadata : encoder field is missing :


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '09_Gray_wings_vbr4.m4a':
 Metadata:
 major_brand : M4A 
 minor_version : 512
 compatible_brands: M4A isomiso2
 title : Gray Wings
 artist : Liholesie
 album_artist : Liholesie
 album : Shamanic Twilight
 date : 2021
 encoder : Lavf59.24.100
 comment : Visit https://liholesie.bandcamp.com
 track : 9
 Duration: 00:06:57.78, start: 0.000000, bitrate: 155 kb/s
 Stream #0:0[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 152 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x0]: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 700x700 [SAR 72:72 DAR 1:1], 90k tbr, 90k tbn (attached pic)


Is there a way to write the encoder field in the Metadata section when transcoding (or is "encoder" not supported for aac m4a ? That would be weird since ffmpeg says what it says when specifying output during transcoding) .


Any hints on how to write a self-defined text to said tag during transcoding are also welcome.


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