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Autres articles (8)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (3752)

  • ffmpeg seek calculating wrong byte range ?

    17 décembre 2015, par user4455

    I’m running into an issue while trying to extract thumbnails from a movie file at a specific timestamp. Generally I’ve had no issues with this, but I’ve come across a set of movie files that are getting an error about the byte range requested (416 Requested Range Not Satisfiable).

    The odd thing is that the server is correctly returning the content length in the partial content request, yet when it requests the movie file it requests a length that exceeds that.

    This is a bit over my head, so I’m not sure what could be happening here. Any insight would be great.

    The Command :

    /usr/bin/ffmpeg -y -ss 1400 -i 'https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4' -qscale:v 2 -f image2 -vframes 1 -filter:v 'scale=192:108' -loglevel debug /data/www/storage/test.jpg 2>&1

    The Error :

    [https @ 0x22e1e00] header='HTTP/1.1 416 Requested Range Not Satisfiable'
    
[https @ 0x22e1e00] http_code=416
    
[https @ 0x22e1e00] HTTP error 416 Requested Range Not Satisfiable

    Source File Size :

    1776706045 bytes

    Source Content Duration :

    2897.624271

    Partial Content Request :

    [https @ 0x22e1e00] header='HTTP/1.1 206 Partial Content'
    
[https @ 0x22e1e00] http_code=206
    
[https @ 0x22e1e00] header='x-amz-id-2: 4J1pgHExIUA0GxIxSBmGJjrRqliHbsIjXeuGzVfTlaaoVXbyZI5FQNma8fGaifcovkXfxJev5yU='
    
[https @ 0x22e1e00] header='x-amz-request-id: 78B3BDBB0356EF40'
    
[https @ 0x22e1e00] header='Date: Wed, 16 Dec 2015 23:51:29 GMT'
    
[https @ 0x22e1e00] header='x-amz-meta-content-length: 2898'
    
[https @ 0x22e1e00] header='x-amz-meta-cb-modifiedtime: Tue, 15 Dec 2015 17:59:51 GMT'
    
[https @ 0x22e1e00] header='Last-Modified: Wed, 16 Dec 2015 23:44:59 GMT'
    
[https @ 0x22e1e00] header='ETag: "6341a8022630667a8070a83575e542e7-27"'
    
[https @ 0x22e1e00] header='Accept-Ranges: bytes'
    
[https @ 0x22e1e00] header='Content-Range: bytes 0-1776706044/1776706045'
    
[https @ 0x22e1e00] header='Content-Type: video/mp4'
    
[https @ 0x22e1e00] header='Content-Length: 1776706045'
    
[https @ 0x22e1e00] header='Server: AmazonS3'
    
[https @ 0x22e1e00] header='Connection: close'

    FFmpeg Request :

    request: GET /my-bucket/mymoviefile.mp4 HTTP/1.1
    
User-Agent: Lavf/56.25.101
    
Accept: */*
    
Range: bytes=1781732960-
    
Connection: close
    
Host: s3-us-west-2.amazonaws.com
    
Icy-MetaData: 1

    Entire Log :

    # /usr/bin/ffmpeg -y -ss 1400 -i 'https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4' -qscale:v 2 -f image2 -vframes 1 -filter:v 'scale=192:108' -loglevel debug /data/www/storage/test.jpg 2>&1
    
ffmpeg version 2.6.4 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.9.2 (Debian 4.9.2-10)
    
  configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-vaapi --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
    
  libavutil      54. 20.100 / 54. 20.100
    
  libavcodec     56. 26.100 / 56. 26.100
    
  libavformat    56. 25.101 / 56. 25.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 11.102 /  5. 11.102
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Splitting the commandline.
    
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option '-ss' ... matched as option 'ss' (set the start time offset) with argument '1400'.
    
Reading option '-i' ... matched as input file with argument 'https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4'.
    
Reading option '-qscale:v' ... matched as option 'qscale' (use fixed quality scale (VBR)) with argument '2'.
    
Reading option '-f' ... matched as option 'f' (force format) with argument 'image2'.
    
Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to output) with argument '1'.
    
Reading option '-filter:v' ... matched as option 'filter' (set stream filtergraph) with argument 'scale=192:108'.
    
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
    
Reading option '/data/www/storage/test.jpg' ... matched as output file.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option y (overwrite output files) with argument 1.
    
Applying option loglevel (set logging level) with argument debug.
    
Successfully parsed a group of options.
    
Parsing a group of options: input file https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4.
    
Applying option ss (set the start time offset) with argument 1400.
    
Successfully parsed a group of options.
    
Opening an input file: https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4.
    
[https @ 0x22e1e00] request: GET /my-bucket/mymoviefile.mp4 HTTP/1.1
    
User-Agent: Lavf/56.25.101
    
Accept: */*
    
Range: bytes=0-
    
Connection: close
    
Host: s3-us-west-2.amazonaws.com
    
Icy-MetaData: 1
    

    

    
[https @ 0x22e1e00] header='HTTP/1.1 206 Partial Content'
    
[https @ 0x22e1e00] http_code=206
    
[https @ 0x22e1e00] header='x-amz-id-2: 4J1pgHExIUA0GxIxSBmGJjrRqliHbsIjXeuGzVfTlaaoVXbyZI5FQNma8fGaifcovkXfxJev5yU='
    
[https @ 0x22e1e00] header='x-amz-request-id: 78B3BDBB0356EF40'
    
[https @ 0x22e1e00] header='Date: Wed, 16 Dec 2015 23:51:29 GMT'
    
[https @ 0x22e1e00] header='x-amz-meta-content-length: 2898'
    
[https @ 0x22e1e00] header='x-amz-meta-cb-modifiedtime: Tue, 15 Dec 2015 17:59:51 GMT'
    
[https @ 0x22e1e00] header='Last-Modified: Wed, 16 Dec 2015 23:44:59 GMT'
    
[https @ 0x22e1e00] header='ETag: "6341a8022630667a8070a83575e542e7-27"'
    
[https @ 0x22e1e00] header='Accept-Ranges: bytes'
    
[https @ 0x22e1e00] header='Content-Range: bytes 0-1776706044/1776706045'
    
[https @ 0x22e1e00] header='Content-Type: video/mp4'
    
[https @ 0x22e1e00] header='Content-Length: 1776706045'
    
[https @ 0x22e1e00] header='Server: AmazonS3'
    
[https @ 0x22e1e00] header='Connection: close'
    
[https @ 0x22e1e00] header=''
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x22e1740] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x22e1740] ISO: File Type Major Brand: mp42
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x22e1740] Before avformat_find_stream_info() pos: 1647960 bytes read:1652200 seeks:0
    
[h264 @ 0x22e92c0] no picture
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x22e1740] All info found
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x22e1740] After avformat_find_stream_info() pos: 1862326 bytes read:1878504 seeks:0 frames:16
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 1
    
    compatible_brands: isommp41avc1
    
    creation_time   : 2015-11-18 02:34:41
    
  Duration: 00:48:17.70, start: 0.000000, bitrate: 4905 kb/s
    
    Stream #0:0(und), 15, 1/2997: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 1001/60000, 9994 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 2015-11-18 02:34:41
    
      handler_name    : ?Apple Video Media Handler
    
    Stream #0:1(und), 1, 1/48000: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2015-11-18 02:34:41
    
      handler_name    : ?Apple Sound Media Handler
    
Successfully opened the file.
    
Parsing a group of options: output file /data/www/storage/test.jpg.
    
Applying option qscale:v (use fixed quality scale (VBR)) with argument 2.
    
Applying option f (force format) with argument image2.
    
Applying option vframes (set the number of video frames to output) with argument 1.
    
Applying option filter:v (set stream filtergraph) with argument scale=192:108.
    
Successfully parsed a group of options.
    
Opening an output file: /data/www/storage/test.jpg.
    
Successfully opened the file.
    
detected 2 logical cores
    
[Parsed_scale_0 @ 0x22cd4c0] Setting 'w' to value '192'
    
[Parsed_scale_0 @ 0x22cd4c0] Setting 'h' to value '108'
    
[Parsed_scale_0 @ 0x22cd4c0] Setting 'flags' to value '0x4'
    
[Parsed_scale_0 @ 0x22cd4c0] w:192 h:108 flags:'0x4' interl:0
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] Setting 'video_size' to value '1920x1080'
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] Setting 'pix_fmt' to value '0'
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] Setting 'time_base' to value '1/2997'
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] Setting 'pixel_aspect' to value '1/1'
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] Setting 'sws_param' to value 'flags=2'
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] Setting 'frame_rate' to value '2997/100'
    
[graph 0 input from stream 0:0 @ 0x22ccfe0] w:1920 h:1080 pixfmt:yuv420p tb:1/2997 fr:2997/100 sar:1/1 sws_param:flags=2
    
[format @ 0x2798640] compat: called with args=[yuvj420p|yuvj422p|yuvj444p]
    
[format @ 0x2798640] Setting 'pix_fmts' to value 'yuvj420p|yuvj422p|yuvj444p'
    
[AVFilterGraph @ 0x22cda60] query_formats: 5 queried, 4 merged, 0 already done, 0 delayed
    
[Parsed_scale_0 @ 0x22cd4c0] picking yuvj420p out of 3 ref:yuv420p alpha:0
    
[swscaler @ 0x22c3c80] deprecated pixel format used, make sure you did set range correctly
    
[Parsed_scale_0 @ 0x22cd4c0] w:1920 h:1080 fmt:yuv420p sar:1/1 -> w:192 h:108 fmt:yuvj420p sar:1/1 flags:0x4
    
[mjpeg @ 0x2854e20] intra_quant_bias = 96 inter_quant_bias = 0
    
[mjpeg @ 0x28716c0] intra_quant_bias = 96 inter_quant_bias = 0
    
[mjpeg @ 0x2795320] intra_quant_bias = 96 inter_quant_bias = 0
    
Output #0, image2, to '/data/www/storage/test.jpg':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 1
    
    compatible_brands: isommp41avc1
    
    encoder         : Lavf56.25.101
    
    Stream #0:0(und), 0, 100/2997: Video: mjpeg, yuvj420p(pc, left), 192x108 [SAR 1:1 DAR 16:9], 100/2997, q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc (default)
    
    Metadata:
    
      creation_time   : 2015-11-18 02:34:41
    
      handler_name    : ?Apple Video Media Handler
    
      encoder         : Lavc56.26.100 mjpeg
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    
Press [q] to stop, [?] for help
    
[https @ 0x22e1e00] request: GET /my-bucket/mymoviefile.mp4 HTTP/1.1
    
User-Agent: Lavf/56.25.101
    
Accept: */*
    
Range: bytes=1781732960-
    
Connection: close
    
Host: s3-us-west-2.amazonaws.com
    
Icy-MetaData: 1
    

    

    
[https @ 0x22e1e00] header='HTTP/1.1 416 Requested Range Not Satisfiable'
    
[https @ 0x22e1e00] http_code=416
    
[https @ 0x22e1e00] HTTP error 416 Requested Range Not Satisfiable
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x22e1740] stream 0, offset 0x6a331660: partial file
    
https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4: Invalid data found when processing input
    
[output stream 0:0 @ 0x22d7500] EOF on sink link output stream 0:0:default.
    
No more output streams to write to, finishing.
    
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A
    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Input file #0 (https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4):
    
  Input stream #0:0 (video): 0 packets read (0 bytes); 0 frames decoded;
    
  Input stream #0:1 (audio): 0 packets read (0 bytes);
    
  Total: 0 packets (0 bytes) demuxed
    
Output file #0 (/data/www/storage/test.jpg):
    
  Output stream #0:0 (video): 0 frames encoded; 0 packets muxed (0 bytes);
    
  Total: 0 packets (0 bytes) muxed
    
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
    
0 frames successfully decoded, 0 decoding errors
    
[AVIOContext @ 0x27ab100] Statistics: 1878504 bytes read, 0 seeks

    FFprobe Result :

    # /usr/bin/ffprobe -show_format -show_streams -i 'https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4'
    
ffprobe version 2.6.4 Copyright (c) 2007-2015 the FFmpeg developers
    
  built with gcc 4.9.2 (Debian 4.9.2-10)
    
  configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-vaapi --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
    
  libavutil      54. 20.100 / 54. 20.100
    
  libavcodec     56. 26.100 / 56. 26.100
    
  libavformat    56. 25.101 / 56. 25.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 11.102 /  5. 11.102
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 1
    
    compatible_brands: isommp41avc1
    
    creation_time   : 2015-11-18 02:34:41
    
  Duration: 00:48:17.70, start: 0.000000, bitrate: 4905 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 9994 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 2015-11-18 02:34:41
    
      handler_name    : ?Apple Video Media Handler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2015-11-18 02:34:41
    
      handler_name    : ?Apple Sound Media Handler
    
[STREAM]
    
index=0
    
codec_name=h264
    
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
    
profile=High
    
codec_type=video
    
codec_time_base=1001/60000
    
codec_tag_string=avc1
    
codec_tag=0x31637661
    
width=1920
    
height=1080
    
has_b_frames=1
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=16:9
    
pix_fmt=yuv420p
    
level=40
    
color_range=tv
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=left
    
timecode=N/A
    
refs=3
    
is_avc=1
    
nal_length_size=4
    
id=N/A
    
r_frame_rate=2997/100
    
avg_frame_rate=2997/100
    
time_base=1/2997
    
start_pts=0
    
start_time=0.000000
    
duration_ts=8684300
    
duration=2897.664331
    
bit_rate=9994429
    
max_bit_rate=N/A
    
bits_per_raw_sample=8
    
nb_frames=86843
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=1
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
TAG:creation_time=2015-11-18 02:34:41
    
TAG:language=und
    
TAG:handler_name=Apple Video Media Handler
    
[/STREAM]
    
[STREAM]
    
index=1
    
codec_name=aac
    
codec_long_name=AAC (Advanced Audio Coding)
    
profile=LC
    
codec_type=audio
    
codec_time_base=1/48000
    
codec_tag_string=mp4a
    
codec_tag=0x6134706d
    
sample_fmt=fltp
    
sample_rate=48000
    
channels=2
    
channel_layout=stereo
    
bits_per_sample=0
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/48000
    
start_pts=0
    
start_time=0.000000
    
duration_ts=139085965
    
duration=2897.624271
    
bit_rate=192002
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=135828
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=1
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
TAG:creation_time=2015-11-18 02:34:41
    
TAG:language=und
    
TAG:handler_name=Apple Sound Media Handler
    
[/STREAM]
    
[FORMAT]
    
filename=https://s3-us-west-2.amazonaws.com/my-bucket/mymoviefile.mp4
    
nb_streams=2
    
nb_programs=0
    
format_name=mov,mp4,m4a,3gp,3g2,mj2
    
format_long_name=QuickTime / MOV
    
start_time=0.000000
    
duration=2897.695000
    
size=1776706045
    
bit_rate=4905156
    
probe_score=100
    
TAG:major_brand=mp42
    
TAG:minor_version=1
    
TAG:compatible_brands=isommp41avc1
    
TAG:creation_time=2015-11-18 02:34:41
    
[/FORMAT]

  • FFMPEG 0.6.5 Commands

    10 novembre 2015, par j.edga

    I need to use ffmpeg version 0.6.5 for doings things like

    • transcribing to different formats ;
    • changing the quality ;
    • taking a still-frame shot ;
    • get the total video durations

    amongst other things.

    I have tried a couple of commands, but they don’t work. How can I do what I want to ?

  • FFmpeg adding 0.05 seconds of silence to transcoded AAC file ?

    29 octobre 2015, par FTLRalph

    In Java, I’m using FFmpeg to convert a WAV file to AAC with the function :

    -i input.wav -ac 1 -ab 64000 -ar 22050 output.aac

    When I open these two files in Audacity, I can clearly see that the AAC file is 0.05 seconds longer, with 0.05 seconds of silence added to the beginning.

    This is an issue when I try to mux this AAC file with a video file - the audio doesn’t sync up.

    Is there some sort of parameter to prevent this behavior or another way to get around this issue ?

    Edit - Console output while running the function :

    10-28 17:47:10.845: I/System.out(14784): FFmpeg: Running the function: -i "input.wav" -ac 1 -ab 64000 -ar 22050 "output.aac"
    
10-28 17:47:10.845: I/System.out(14784): FFmpeg function: onStart()
    
10-28 17:47:10.865: D/FFmpeg(14784): Running publishing updates method
    
10-28 17:47:10.865: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavutil      54.  7.100 / 54.  7.100
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavcodec     56.  1.100 / 56.  1.100
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavformat    56.  4.101 / 56.  4.101
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libavdevice    56.  0.100 / 56.  0.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libavfilter     5.  1.100 /  5.  1.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libswscale      3.  0.100 /  3.  0.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libswresample   1.  1.100 /  1.  1.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libpostproc    53.  0.100 / 53.  0.100
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.895: I/System.out(14784): Guessed Channel Layout for  Input Stream #0.0 : mono
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.895: I/System.out(14784): Input #0, wav, from 'input.wav':
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.900: I/System.out(14784):   Duration: 00:00:02.50, bitrate: 352 kb/s
    
10-28 17:47:10.900: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.900: I/System.out(14784):     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784): Output #0, adts, to 'output.aac':
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):   Metadata:
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     encoder         : Lavf56.4.101
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     Stream #0:0: Audio: aac, 22050 Hz, mono, fltp, 64 kb/s
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     Metadata:
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):       encoder         : Lavc56.1.100 aac
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784): Stream mapping:
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784):   Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (native))
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784): Press [q] to stop, [?] for help
    
10-28 17:47:11.395: D/dalvikvm(14784): JIT unchain all for threadid=16
    
10-28 17:47:11.420: D/dalvikvm(14784): GC_FOR_ALLOC freed 4698K, 40% free 7190K/11964K, paused 271ms, total 272ms
    
10-28 17:47:11.420: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:11.420: I/System.out(14784): size=      12kB time=00:00:02.50 bitrate=  37.7kbits/s    
    
10-28 17:47:11.455: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:11.455: I/System.out(14784): video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.363914%
    
10-28 17:47:11.470: I/System.out(14784): FFmpeg function: onSuccess(), message:
    
10-28 17:47:11.470: I/System.out(14784): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
10-28 17:47:11.470: I/System.out(14784):   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
10-28 17:47:11.470: I/System.out(14784):   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
10-28 17:47:11.470: I/System.out(14784):   libavutil      54.  7.100 / 54.  7.100
    
10-28 17:47:11.470: I/System.out(14784):   libavcodec     56.  1.100 / 56.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libavformat    56.  4.101 / 56.  4.101
    
10-28 17:47:11.470: I/System.out(14784):   libavdevice    56.  0.100 / 56.  0.100
    
10-28 17:47:11.470: I/System.out(14784):   libavfilter     5.  1.100 /  5.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libswscale      3.  0.100 /  3.  0.100
    
10-28 17:47:11.470: I/System.out(14784):   libswresample   1.  1.100 /  1.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libpostproc    53.  0.100 / 53.  0.100
    
10-28 17:47:11.470: I/System.out(14784): Guessed Channel Layout for  Input Stream #0.0 : mono
    
10-28 17:47:11.470: I/System.out(14784): Input #0, wav, from 'input.wav':
    
10-28 17:47:11.470: I/System.out(14784):   Duration: 00:00:02.50, bitrate: 352 kb/s
    
10-28 17:47:11.475: I/System.out(14784):     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
    
10-28 17:47:11.475: I/System.out(14784): Output #0, adts, to 'output.aac':
    
10-28 17:47:11.475: I/System.out(14784):   Metadata:
    
10-28 17:47:11.475: I/System.out(14784):     encoder         : Lavf56.4.101
    
10-28 17:47:11.475: I/System.out(14784):     Stream #0:0: Audio: aac, 22050 Hz, mono, fltp, 64 kb/s
    
10-28 17:47:11.475: I/System.out(14784):     Metadata:
    
10-28 17:47:11.475: I/System.out(14784):       encoder         : Lavc56.1.100 aac
    
10-28 17:47:11.475: I/System.out(14784): Stream mapping:
    
10-28 17:47:11.475: I/System.out(14784):   Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (native))
    
10-28 17:47:11.475: I/System.out(14784): Press [q] to stop, [?] for help
    
10-28 17:47:11.475: I/System.out(14784): size=      12kB time=00:00:02.50 bitrate=  37.7kbits/s    
    
10-28 17:47:11.475: I/System.out(14784): video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.363914%
    
10-28 17:47:11.475: I/System.out(14784): FFmpeg function: onFinish()

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