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Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)
Sur d’autres sites (10289)
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The ffmpeg webm_dash_manifest demuxer fails with webvtt subtitles
30 janvier 2020, par HyldreanI am trying to create a DASH manifest using ffmpeg and I encounter some difficulties with the subtitles. I get the error
[webm_dash_manifest @ 0x55e19db48180] EBML header parsing failed
[webm_dash_manifest @ 0x55e19db48180] Failed to read file headers
subtitles.vtt: Operation not permittedThe subtitles are encoded in the plain text webvtt format. I first assume that the EBML header are missing because the subtitles were not contained in a webm container. I then tried to create a webm file containing only the subtitles. It appears impossible.
I think the problem comes from the webm_dash_manifest demuxer. It seeks metadata in a file with no metadata. However neither Google nor Stack Overflow give me an answer.
The command I used :
ffmpeg \
-f webm_dash_manifest -i video.webm \
-f webm_dash_manifest -i audio.webm \
-f webm_dash_manifest -i subtitles.vtt \
-map 0 -map 1 -map 2 \
-c copy \
-f webm_dash_manifest \
-adaptation_sets "id=0,streams=0 id=1,streams=1 id=2,stream=2" \
minimal.mpdand the ffmpeg output :
ffmpeg version 3.2.14-1~deb9u1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[webm_dash_manifest @ 0x55e19db17160] Could not find codec parameters for stream 0 (Video: vp9, none, 1280x534): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, webm_dash_manifest, from 'video.webm':
Metadata:
title : Cloud Atlas
ENCODER : Lavf58.35.104
Duration: 00:05:00.01, bitrate: 998 kb/s
Chapter #0:0: start 0.000000, end 300.000000
Metadata:
title : Chapter 01
Stream #0:0(eng): Video: vp9, none, 1280x534, SAR 1:1 DAR 640:267, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default) (forced)
Metadata:
title : Video @ 6.9 Mbps [frame B:188517 Avg QP:20.66]
ENCODER : Lavc58.66.100 libvpx-vp9
DURATION : 00:05:00.008000000
webm_dash_manifest_duration: 300008
webm_dash_manifest_initialization_range: 900
webm_dash_manifest_file_name: video.webm
webm_dash_manifest_track_number: 1
webm_dash_manifest_cues_start: 37455991
webm_dash_manifest_cues_end: 37457486
webm_dash_manifest_bandwidth: 1420427
webm_dash_manifest_cluster_keyframe: 1
webm_dash_manifest_cue_timestamps: 298715
Input #1, webm_dash_manifest, from 'audio.webm':
Metadata:
title : Cloud Atlas
ENCODER : Lavf58.35.104
Duration: 00:05:00.01, bitrate: 126 kb/s
Chapter #1:0: start 0.000000, end 300.000000
Metadata:
title : Chapter 01
Stream #1:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Metadata:
title : Audio Eng DTS 5.1 channels 24 bits @ 1509 Kbps cbr
ENCODER : Lavc58.66.100 libopus
DURATION : 00:05:00.007000000
webm_dash_manifest_duration: 300007
webm_dash_manifest_initialization_range: 838
webm_dash_manifest_file_name: audio.webm
webm_dash_manifest_track_number: 1
webm_dash_manifest_cues_start: 4744091
webm_dash_manifest_cues_end: 4745279
webm_dash_manifest_bandwidth: 137531
webm_dash_manifest_cluster_keyframe: 1
webm_dash_manifest_cue_timestamps: 295000
[webm_dash_manifest @ 0x55e19db48180] EBML header parsing failed
[webm_dash_manifest @ 0x55e19db48180] Failed to read file headers
subtitles.vtt: Operation not permittedI noticed that
ffmpeg -f webm_dash_manifest -i subtitles.vttsuffices to reproduce the error.I have also tried without the
-f webm_dash_manifestflag, with no success :ffmpeg \
-f webm_dash_manifest -i video.webm \
-f webm_dash_manifest -i audio.webm \
-i subtitles.vtt \
-map 0 -map 1 -map 2 \
-c copy \
-f webm_dash_manifest \
-adaptation_sets "id=0,streams=0 id=1,streams=1 id=2,stream=2" minimal.mpdOutput :
ffmpeg version 3.2.14-1~deb9u1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[webm_dash_manifest @ 0x557f55dd1160] Could not find codec parameters for stream 0 (Video: vp9, none, 1280x534): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, webm_dash_manifest, from 'video.webm':
Metadata:
title : Cloud Atlas
ENCODER : Lavf58.35.104
Duration: 00:05:00.01, bitrate: 998 kb/s
Chapter #0:0: start 0.000000, end 300.000000
Metadata:
title : Chapter 01
Stream #0:0(eng): Video: vp9, none, 1280x534, SAR 1:1 DAR 640:267, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default) (forced)
Metadata:
title : Video @ 6.9 Mbps [frame B:188517 Avg QP:20.66]
ENCODER : Lavc58.66.100 libvpx-vp9
DURATION : 00:05:00.008000000
webm_dash_manifest_duration: 300008
webm_dash_manifest_initialization_range: 900
webm_dash_manifest_file_name: video.webm
webm_dash_manifest_track_number: 1
webm_dash_manifest_cues_start: 37455991
webm_dash_manifest_cues_end: 37457486
webm_dash_manifest_bandwidth: 1420427
webm_dash_manifest_cluster_keyframe: 1
webm_dash_manifest_cue_timestamps: 298715
Input #1, webm_dash_manifest, from 'audio.webm':
Metadata:
title : Cloud Atlas
ENCODER : Lavf58.35.104
Duration: 00:05:00.01, bitrate: 126 kb/s
Chapter #1:0: start 0.000000, end 300.000000
Metadata:
title : Chapter 01
Stream #1:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Metadata:
title : Audio Eng DTS 5.1 channels 24 bits @ 1509 Kbps cbr
ENCODER : Lavc58.66.100 libopus
DURATION : 00:05:00.007000000
webm_dash_manifest_duration: 300007
webm_dash_manifest_initialization_range: 838
webm_dash_manifest_file_name: audio.webm
webm_dash_manifest_track_number: 1
webm_dash_manifest_cues_start: 4744091
webm_dash_manifest_cues_end: 4745279
webm_dash_manifest_bandwidth: 137531
webm_dash_manifest_cluster_keyframe: 1
webm_dash_manifest_cue_timestamps: 295000
Input #2, webvtt, from 'subtitles.vtt':
Duration: N/A, bitrate: N/A
Stream #2:0: Subtitle: webvtt
Could not write header for output file #0 (incorrect codec parameters ?): Operation not permittedStream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #1:0 -> #0:1 (copy)
Stream #2:0 -> #0:2 (copy)
Last message repeated 1 timesNote :
[webm_dash_manifest @ 0x557f55dd1160] Could not find codec parameters for stream 0 (Video: vp9, none, 1280x534): unspecified pixel formatis harmless according to this post.The subtitles have been extracted with ffmpeg :
ffmpeg -i "Cloud Atlas.mkv" -map 0:6 -t 00:05:00 -c:s webvtt -dash 1 subtitles.vttThank you for reading my long post, I have no idea what to do next.
EDIT : The WebM Project website says : ’Initial WebM release does not support subtitles’. Has someone heard of a new release ? Or a convenient way to create DASH manifest with subtitles ?
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CRF/CQP is incompatible with 2pass. FFmpeg error
22 juillet 2020, par user12129980This is my command :



..\ffmpeg -y -i "D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4" -c:v libx264 -preset ultrafast -maxrate 3000k -bufsize 6000k -g 50 -c:a aac -b:a 128k -ac 2 -ar 44100 -an -pass 1 -f mp4 NUL && ..\ffmpeg -i "D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4" -c:v libx264 -s 1280x720 -preset ultrafast -maxrate 500k -bufsize 1000k -vf "scale=1280:-1,format=yuv420p" -g 50 -c:a aac -b:a 128k -ac 2 -ar 44100 -an -pass 2 aa_start_with_BAGAN.mp4_ultrafast_500.mp4



in the output I get
CRF/CQP is incompatible with 2pass, but I didnt use the cfr/-q option in the command at all, why do I get this error ?
Add the full metadata of FFMpeg maybe someone can help me with this ?
(-g 50 because the default fps is 25 base on the documentation)


`ffmpeg version git-2020-01-29-de1b2aa Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.2.1 (GCC) 20200122
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 38.100 / 56. 38.100
 libavcodec 58. 67.100 / 58. 67.100
 libavformat 58. 36.100 / 58. 36.100
 libavdevice 58. 9.103 / 58. 9.103
 libavfilter 7. 71.100 / 7. 71.100
 libswscale 5. 6.100 / 5. 6.100
 libswresample 3. 6.100 / 3. 6.100
 libpostproc 55. 6.100 / 55. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4':
 Metadata:
 major_brand : M4V
 minor_version : 1
 compatible_brands: M4V mp42isom
 creation_time : 2018-04-24T18:21:09.000000Z
 Duration: 00:35:54.00, start: 0.000000, bitrate: 1057 kb/s
 Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 929 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
 Metadata:
 creation_time : 2018-04-24T18:21:09.000000Z
 handler_name : Mainconcept MP4 Video Media Handler
 encoder : AVC Coding
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
 Metadata:
 creation_time : 2018-04-24T18:21:09.000000Z
 handler_name : Mainconcept MP4 Sound Media Handler
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (NUL) 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.
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0000024ec2de0f80] using SAR=1/1
[libx264 @ 0000024ec2de0f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000024ec2de0f80] profile Constrained Baseline, level 3.0, 4:2:0, 8-bit
[libx264 @ 0000024ec2de0f80] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=50 keyint_min=5 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=3000 vbv_bufsize=6000 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
Output #0, mp4, to 'NUL':
 Metadata:
 major_brand : M4V
 minor_version : 1
 compatible_brands: M4V mp42isom
 encoder : Lavf58.36.100
 Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
 Metadata:
 creation_time : 2018-04-24T18:21:09.000000Z
 handler_name : Mainconcept MP4 Video Media Handler
 encoder : Lavc58.67.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 3000000/0/0 buffer size: 6000000 vbv_delay: N/A
frame=53849 fps=999 q=-1.0 Lsize= 496489kB time=00:35:53.92 bitrate=1888.3kbits/s speed=39.9x
video:496266kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.044919%
[libx264 @ 0000024ec2de0f80] frame I:1077 Avg QP:20.39 size: 38800
[libx264 @ 0000024ec2de0f80] frame P:52772 Avg QP:23.39 size: 8838
[libx264 @ 0000024ec2de0f80] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0000024ec2de0f80] mb P I16..4: 8.4% 0.0% 0.0% P16..4: 51.8% 0.0% 0.0% 0.0% 0.0% skip:39.8%
[libx264 @ 0000024ec2de0f80] coded y,uvDC,uvAC intra: 44.8% 54.5% 18.3% inter: 30.2% 22.0% 2.0%
[libx264 @ 0000024ec2de0f80] i16 v,h,dc,p: 39% 25% 16% 19%
[libx264 @ 0000024ec2de0f80] i8c dc,h,v,p: 35% 23% 24% 17%
[libx264 @ 0000024ec2de0f80] kb/s:1887.41
ffmpeg version git-2020-01-29-de1b2aa Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.2.1 (GCC) 20200122
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 38.100 / 56. 38.100
 libavcodec 58. 67.100 / 58. 67.100
 libavformat 58. 36.100 / 58. 36.100
 libavdevice 58. 9.103 / 58. 9.103
 libavfilter 7. 71.100 / 7. 71.100
 libswscale 5. 6.100 / 5. 6.100
 libswresample 3. 6.100 / 3. 6.100
 libpostproc 55. 6.100 / 55. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\FFMPEG\ffmpeg-20200129-de1b2aa-win64-static\bin\test\aa_start_with_BAGAN.mp4':
 Metadata:
 major_brand : M4V
 minor_version : 1
 compatible_brands: M4V mp42isom
 creation_time : 2018-04-24T18:21:09.000000Z
 Duration: 00:35:54.00, start: 0.000000, bitrate: 1057 kb/s
 Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 640x480 [SAR 1:1 DAR 4:3], 929 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
 Metadata:
 creation_time : 2018-04-24T18:21:09.000000Z
 handler_name : Mainconcept MP4 Video Media Handler
 encoder : AVC Coding
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
 Metadata:
 creation_time : 2018-04-24T18:21:09.000000Z
 handler_name : Mainconcept MP4 Sound Media Handler
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (aa_start_with_BAGAN.mp4_ultrafast_500.mp4) 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.
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0000013691fbda00] using SAR=3/4
[libx264 @ 0000013691fbda00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000013691fbda00] CRF/CQP is incompatible with 2pass.
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!`


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FFMPEG - How to pipe RMS_level and pts_time metadata without generating unwanted metadata
6 février 2020, par Tovi NewmanI am trying to find the loudest (highest rms_level) moment in an audio file, but I need to pipe the metadata rather than write to a file.
I converted the answer found here : [https://superuser.com/questions/1183663/determining-audio-level-peaks-with-ffmpeg][1]
By removing the write to file command and adding a pipe.
Here’s what I’ve got.ffmpeg -i loudSoft.mp3 -af astats=metadata=1:reset=1,ametadata=print:key=lavfi.astats.Overall.RMS_level -f null - 2> result.txtThe only problem is, now I’ve got a lot of unwanted metadata before and after the RMS_level and pts_time data as well as
[Parsed_ametadata_1 @ 0x7f9d42c37500]being printed on each line. None of that was being written when I was writing to a file instead of piping. (all I need is the time and the rms.)Here is an abridged version of what I get when I write to file :
frame:0 pts:0 pts_time:0
lavfi.astats.Overall.RMS_level=-inf
frame:1 pts:47 pts_time:0.00106576
lavfi.astats.Overall.RMS_level=-165.163347
frame:2 pts:1199 pts_time:0.0271882
lavfi.astats.Overall.RMS_level=-99.736394
frame:3 pts:2351 pts_time:0.0533107
lavfi.astats.Overall.RMS_level=-88.112282
frame:4 pts:3503 pts_time:0.0794331
lavfi.astats.Overall.RMS_level=-86.554314
frame:5 pts:4655 pts_time:0.105556
lavfi.astats.Overall.RMS_level=-82.977501
frame:6 pts:5807 pts_time:0.131678
lavfi.astats.Overall.RMS_level=-79.698739
frame:7 pts:6959 pts_time:0.1578
lavfi.astats.Overall.RMS_level=-76.629393
frame:8 pts:8111 pts_time:0.183923
lavfi.astats.Overall.RMS_level=-71.581211
frame:9 pts:9263 pts_time:0.210045
lavfi.astats.Overall.RMS_level=-75.038503
frame:10 pts:10415 pts_time:0.236168And here is what I’m looking at :
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with Apple clang version 11.0.0 (clang-1100.0.33.16)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.0.1.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, mp3, from 'loudSoft2.mp3':
Metadata:
encoder : Lavf58.29.100
Duration: 00:00:09.85, start: 0.025057, bitrate: 128 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc58.54
Stream mapping:
Stream #0:0 -> #0:0 (mp3 (mp3float) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[Parsed_ametadata_1 @ 0x7f9d42c37500] frame:0 pts:0 pts_time:0
[Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-inf
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf58.29.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.54.100 pcm_s16le
[Parsed_ametadata_1 @ 0x7f9d42c37500] frame:1 pts:47 pts_time:0.00106576
[Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-165.163347
[Parsed_ametadata_1 @ 0x7f9d42c37500] frame:2 pts:1199 pts_time:0.0271882
[Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-99.736394
[Parsed_ametadata_1 @ 0x7f9d42c37500] frame:3 pts:2351 pts_time:0.0533107
*** MIDDLE OMITTED FOR BREVITY ***
[Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-88.532185
[Parsed_ametadata_1 @ 0x7f9d42c37500] frame:375 pts:430895 pts_time:9.77086
[Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-88.594276
[Parsed_ametadata_1 @ 0x7f9d42c37500] frame:376 pts:432047 pts_time:9.79698
[Parsed_ametadata_1 @ 0x7f9d42c37500] lavfi.astats.Overall.RMS_level=-88.654138
size=N/A time=00:00:09.82 bitrate=N/A speed=82.6x
video:0kB audio:1692kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[Parsed_astats_0 @ 0x7f9d42c37280] Channel: 1
[Parsed_astats_0 @ 0x7f9d42c37280] DC offset: 0.000001
[Parsed_astats_0 @ 0x7f9d42c37280] Min level: -0.000106
[Parsed_astats_0 @ 0x7f9d42c37280] Max level: 0.000115
[Parsed_astats_0 @ 0x7f9d42c37280] Min difference: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Max difference: 0.000077
[Parsed_astats_0 @ 0x7f9d42c37280] Mean difference: 0.000017
[Parsed_astats_0 @ 0x7f9d42c37280] RMS difference: 0.000022
[Parsed_astats_0 @ 0x7f9d42c37280] Peak level dB: -78.752617
[Parsed_astats_0 @ 0x7f9d42c37280] RMS level dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] RMS peak dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] RMS trough dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] Crest factor: 3.126627
[Parsed_astats_0 @ 0x7f9d42c37280] Flat factor: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Peak count: 2
[Parsed_astats_0 @ 0x7f9d42c37280] Bit depth: 32/32
[Parsed_astats_0 @ 0x7f9d42c37280] Dynamic range: 76.274252
[Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings: 246
[Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings rate: 0.222624
[Parsed_astats_0 @ 0x7f9d42c37280] Number of NaNs: 0
[Parsed_astats_0 @ 0x7f9d42c37280] Number of Infs: 0
[Parsed_astats_0 @ 0x7f9d42c37280] Number of denormals: 0
[Parsed_astats_0 @ 0x7f9d42c37280] Channel: 2
[Parsed_astats_0 @ 0x7f9d42c37280] DC offset: 0.000001
[Parsed_astats_0 @ 0x7f9d42c37280] Min level: -0.000106
[Parsed_astats_0 @ 0x7f9d42c37280] Max level: 0.000115
[Parsed_astats_0 @ 0x7f9d42c37280] Min difference: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Max difference: 0.000077
[Parsed_astats_0 @ 0x7f9d42c37280] Mean difference: 0.000017
[Parsed_astats_0 @ 0x7f9d42c37280] RMS difference: 0.000022
[Parsed_astats_0 @ 0x7f9d42c37280] Peak level dB: -78.752617
[Parsed_astats_0 @ 0x7f9d42c37280] RMS level dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] RMS peak dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] RMS trough dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] Crest factor: 3.126627
[Parsed_astats_0 @ 0x7f9d42c37280] Flat factor: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Peak count: 2
[Parsed_astats_0 @ 0x7f9d42c37280] Bit depth: 32/32
[Parsed_astats_0 @ 0x7f9d42c37280] Dynamic range: 76.274252
[Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings: 246
[Parsed_astats_0 @ 0x7f9d42c37280] Zero crossings rate: 0.222624
[Parsed_astats_0 @ 0x7f9d42c37280] Number of NaNs: 0
[Parsed_astats_0 @ 0x7f9d42c37280] Number of Infs: 0
[Parsed_astats_0 @ 0x7f9d42c37280] Number of denormals: 0
[Parsed_astats_0 @ 0x7f9d42c37280] Overall
[Parsed_astats_0 @ 0x7f9d42c37280] DC offset: 0.000001
[Parsed_astats_0 @ 0x7f9d42c37280] Min level: -0.000106
[Parsed_astats_0 @ 0x7f9d42c37280] Max level: 0.000115
[Parsed_astats_0 @ 0x7f9d42c37280] Min difference: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Max difference: 0.000077
[Parsed_astats_0 @ 0x7f9d42c37280] Mean difference: 0.000017
[Parsed_astats_0 @ 0x7f9d42c37280] RMS difference: 0.000022
[Parsed_astats_0 @ 0x7f9d42c37280] Peak level dB: -78.752617
[Parsed_astats_0 @ 0x7f9d42c37280] RMS level dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] RMS peak dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] RMS trough dB: -88.654138
[Parsed_astats_0 @ 0x7f9d42c37280] Flat factor: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Peak count: 2.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Bit depth: 32/32
[Parsed_astats_0 @ 0x7f9d42c37280] Number of samples: 1105
[Parsed_astats_0 @ 0x7f9d42c37280] Number of NaNs: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Number of Infs: 0.000000
[Parsed_astats_0 @ 0x7f9d42c37280] Number of denormals: 0.000000
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