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  • restarting ffmpeg upon stop/disconnection

    17 décembre 2015, par akiva

    I'm recording a long audio m3u8 stream with ffmpeg (with -t to limit the time).

    the problem is the stream resets its connection quite often. how do I make ffmpeg restart upon hangs? I was thinking of running of such a hack: timeout but it would override the same file

    any suggestions?

  • How to compile ffmpeg with librtmp for android in Vitamio 5.0 ?

    17 décembre 2015, par Kadri

    i was using vitamio 4.2.2 but google send me a mail about vitamio libs including security backdoors. And says update vitamio version. But im using vitamio version which was compiled ffmpeg with librtmp android. Now i will use Vitamio 5.0 But How to find ffmpeg rtmp build or who can compile ffmpeg librtmp for Vitamio 5.0 ? Please help me

  • Details about the types of the filtered frame used in FFmpeg

    17 décembre 2015, par sunzhida

    I am new in multimedia analysis.

    I am trying to extract key frames from .mp4 and .flv format videos by using FFmpeg. The problem is that I was confused by the parameters used in the command (Select only I-frames). 

    select='eq(pict_type\,I)'

    The parameters are used to choose the types of filtered frame and It can assume one of the following values:

    I P B S SI SP BI

    After searching on Wikipedia, I have got some basic concepts on I, P, B frames but still cannot tell the difference among S, SI, SP and BI. How to decide which type of frame should I use in my command line?

    [Update]

    I found some of the definitions of these terms in The H.264 Advanced Video Compression Standard, Second Edition.

    • SI: Intra-coded slice used for switching between coded bitstreams (H.264)
    • SP: Inter-coded slice used for switching between coded bitstreams

  • How can I find get the frame number from a gif file using ffmpeg's AVFormatContext struct ?

    17 décembre 2015, par user1400047

    I searched from all the subnode of AVFormatContext, buf just found the fps. no frame numbers or duration info at all. who can help me ?

  • 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]

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