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  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (2289)

  • how to explicitly specify matroska format file to be VFR

    19 janvier 2012, par Ulterior

    I am moving my code performing AVI recording with ffmpeg library to matroska format due to native support of VFR stated by format. Changing guess_format to matroska not touching any other settings produced an mkv file which seems to be ok. But the MediaInfo reports it to be CFS (30).

    How do I explicitly state that its VFR ?

    Format                           : Matroska
    
File size                        : 5.27 MiB
    
Duration                         : 8s 0ms
    
Overall bit rate                 : 5 528 Kbps
    
Writing application              : Lavf52.78.1
    
Writing library                  : Lavf52.78.1
    

    
Video
    
ID                               : 1
    
Format                           : MPEG-4 Visual
    
Format profile                   : Simple@L1
    
Format settings, BVOP            : Yes
    
Format settings, QPel            : No
    
Format settings, GMC             : No warppoints
    
Format settings, Matrix          : Default (H.263)
    
Codec ID                         : V_MPEG4/ISO/ASP
    
Codec ID/Info                    : Advanced Simple Profile
    
Duration                         : 8s 0ms
    
Width                            : 1 280 pixels
    
Height                           : 720 pixels
    
Display aspect ratio             : 16:9
    
Frame rate                       : 30.000 fps
    
Color space                      : YUV
    
Bit depth                        : 8 bits
    
Scan type                        : Progressive
    
Writing library                  : Intel(R) MPEG-4 encoder based on Intel(R) IPP 6.1 build 137.36[6.1.137.779]
    
Language                         : English
    

    
Audio
    
ID                               : 2
    
Format                           : MPEG Audio
    
Codec ID                         : A_MPEG/L3
    
Codec ID/Hint                    : MP3
    
Duration                         : 8s 0ms
    
Channel(s)                       : 2 channels
    
Sampling rate                    : 44.1 KHz
    
Language                         : English

  • Why won't some MP4 videos start streaming until the entire file is downloaded ?

    28 janvier 2016, par Sujeet

    I’m working on an application where users upload a video and play it back the browser using jwplayer, jplayer, flowplayer, etc. Some videos play immediately, while others wait until the entire video file has been downloaded.

    I’m using ffmpeg to convert the video to mp4 format.

    Here is some detailed information about one of the video files I tried.

    General
    
Complete name                    : 429183132058337290450_AutoFF.mp4
    
Format                           : MPEG-4
    
Format profile                   : Base Media
    
Codec ID                         : isom
    
File size                        : 10.2 MiB
    
Duration                         : 24s 333ms
    
Overall bit rate                 : 3 501 Kbps
    

    
Video
    
ID                               : 1
    
Format                           : AVC
    
Format/Info                      : Advanced Video Codec
    
Format profile                   : High@L4.1
    
Format settings, CABAC           : Yes
    
Format settings, ReFrames        : 3 frames
    
Codec ID                         : avc1
    
Codec ID/Info                    : Advanced Video Coding
    
Duration                         : 24s 333ms
    
Bit rate mode                    : Variable
    
Bit rate                         : 3 351 Kbps
    
Width                            : 1 024 pixels
    
Height                           : 560 pixels
    
Display aspect ratio             : 16:9
    
Frame rate mode                  : Constant
    
Frame rate                       : 30.000 fps
    
Color space                      : YUV
    
Chroma subsampling               : 4:2:0
    
Bit depth                        : 8 bits
    
Scan type                        : Progressive
    
Bits/(Pixel*Frame)               : 0.195
    
Stream size                      : 9.72 MiB (96%)
    
Language                         : Japanese

  • Translating Handbrake options to a FFMPEG command

    9 mai 2020, par Arif

    I want to convert a bunch of videos from x264 to x265, but I need to do so with ffmpeg in terminal because it's a remote server. These are my Handbrake options (listed items are ticked) :

    



    Summary tab

    



      

    • Web optimized

      • 


    • Align A/V Start

      • 


    



    Dimensions tab unchanged

    



    Filters tab

    



      

    • Sharpen - LapSharp, preset : Medium

      • 


    



    Video tab

    



      


    • Video codec - H.265 (x265)

      • 


    • Framerate (FPS) - 30 - Peak Framerate

      • 


    • Quality - Constant Quality - 28

      • 


    • Encoder preset - Medium

      • 


    • Encoder tune - None

      • 


    • Encoder profile - Auto

      • 


    



    Audio tab

    



      

    • Audio track - AAC, bitrate : 128

      • 


    



    Subtitles tab - No subtitles (remove if exists)

    



    This is the ffmpeg command that I've managed to compile so far :

    



    ffmpeg -i input.mp4 -c:v libx265 -crf 28 -c:a aac -b:a 128k -max_muxing_queue_size 400 -movflags +faststart output.mp4

    



    I have the following two questions :

    



      

    1. Does the ffmpeg command provided list all the options except the peak framerate, sharpening filter and removing subtitle ones ? How do I incorporate these three ?

      2. 


    2. Slightly unrelated, but does having -max_muxing_queue_size 400 negatively affect file size or video quality ? I've only included this because I'd ran into encoding errors in the past.

      3. 


    



    Thank you.

    



    My Handbrake log with the above options, if it helps :

    



    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.10.100
  Duration: 00:02:20.52, start: 0.000000, bitrate: 1487 kb/s
    Stream #0:0(und): Video: h264 (High) [avc1 / 0x31637661]
      yuv420p, tv, bt709/bt709/bt709
      1280x720 [PAR 1:1 DAR 16:9], 1288 kb/s, PAR 1:1 DAR 16:9
      29.97 fps, 30k tbn (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) [mp4a / 0x6134706D]
      44100 Hz, stereo, fltp, 192 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[04:26:49] scan: decoding previews for title 1
[04:26:49] scan: audio 0x1: aac, rate=44100Hz, bitrate=192025 English (AAC) (2.0 ch)
[04:26:50] scan: 10 previews, 1280x720, 29.970 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[04:26:50] scan: supported video decoders: avcodec qsv
[04:26:50] libhb: scan thread found 1 valid title(s)
[04:26:50] starting job
[04:26:50] decomb filter thread started for segment 0
[04:26:50] decomb filter thread started for segment 1
[04:26:50] decomb filter thread started for segment 3
[04:26:50] decomb check thread started for segment 0
[04:26:50] decomb check thread started for segment 1
[04:26:50] yadif thread started for segment 0
[04:26:50] decomb check thread started for segment 3
[04:26:50] mask filter thread started for segment 0
[04:26:50] work: track 1, dithering not supported by codec
[04:26:50] mask filter thread started for segment 1
[04:26:50] work: only 1 chapter, disabling chapter markers
[04:26:50] job configuration:
[04:26:50]  * source
[04:26:50]    + E:\input.mp4
[04:26:50]    + title 1, chapter(s) 1 to 1
[04:26:50]    + container: mov,mp4,m4a,3gp,3g2,mj2
[04:26:50] mask filter thread started for segment 3
[04:26:50]    + data rate: 1487 kbps
[04:26:50]  * destination
[04:26:50]    + C:\Users\Hp\Desktop\output.mp4
[04:26:50]    + container: MPEG-4 (libavformat)
[04:26:50]      + optimized for HTTP streaming (fast start)
[04:26:50]      + align initial A/V stream timestamps
[04:26:50]  * video track
[04:26:50]    + decoder: h264
[04:26:50]      + bitrate 1288 kbps
[04:26:50]    + filters
[04:26:50] mask filter thread started for segment 2
[04:26:50]      + Comb Detect (mode=3:spatial-metric=2:motion-thresh=1:spatial-thresh=1:filter-mode=2:block-thresh=40:block-width=16:block-height=16)
[04:26:50]      + Decomb (mode=39)
[04:26:50]      + Framerate Shaper (mode=2:rate=27000000/900000)
[04:26:50]        + frame rate: 29.970 fps -> peak rate limited to 30.000 fps
[04:26:50] mask erode thread started for segment 1
[04:26:50]      + Crop and Scale (width=1280:height=720:crop-top=0:crop-bottom=0:crop-left=0:crop-right=0)
[04:26:50]        + source: 1280 * 720, crop (0/0/0/0): 1280 * 720, scale: 1280 * 720
[04:26:50]      + Sharpen (lapsharp) (y-strength=0.2:y-kernel=isolap:cb-strength=0.2:cb-kernel=isolap)
[04:26:50]    + Output geometry
[04:26:50]      + storage dimensions: 1280 x 720
[04:26:50]      + pixel aspect ratio: 1 : 1
[04:26:50]      + display dimensions: 1280 x 720
[04:26:50]    + encoder: H.265 (libx265)
[04:26:50]      + preset:  medium
[04:26:50]      + profile: auto
[04:26:50]      + quality: 28.00 (RF)
[04:26:50]  * audio track 1
[04:26:50] mask erode thread started for segment 2
[04:26:50]    + decoder: English (AAC) (2.0 ch) (track 1, id 0x1)
[04:26:50]      + bitrate: 192 kbps, samplerate: 44100 Hz
[04:26:50]    + mixdown: Stereo
[04:26:50]    + encoder: AAC (libavcodec)
[04:26:50]      + bitrate: 128 kbps, samplerate: 48000 Hz
[04:26:50] mask erode thread started for segment 3
[04:26:50] mask dilate thread started for segment 0
[04:26:50] mask dilate thread started for segment 1
[04:26:50] mask dilate thread started for segment 2
[04:26:50] decomb check thread started for segment 2
[04:26:50] yadif thread started for segment 1
[04:26:50] yadif thread started for segment 2
[04:26:50] yadif thread started for segment 3
[04:26:50] MTFrame thread started for segment 1
[04:26:50] MTFrame thread started for segment 2
[04:26:50] MTFrame thread started for segment 3
[04:26:50] mask dilate thread started for segment 3
[04:26:50] sync: expecting 4211 video frames
[04:26:50] mask erode thread started for segment 0
[04:26:50] decomb filter thread started for segment 2
[04:26:50] MTFrame thread started for segment 0
x265 [info]: HEVC encoder version 2.6
x265 [info]: build info [Windows][GCC 7.2.0][64 bit] 8bit+10bit+12bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main profile, Level-3.1 (Main tier)
x265 [info]: Thread pool created using 4 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 2 / wpp(12 rows)
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 2
x265 [info]: Keyframe min / max / scenecut / bias: 30 / 300 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt        : 20 / 4 / 2
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
x265 [info]: References / ref-limit  cu / depth  : 3 / on / on
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 1 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress            : CRF-28.0 / 0.60
x265 [info]: tools: rd=3 psy-rd=2.00 rskip signhide tmvp strong-intra-smoothing
x265 [info]: tools: lslices=4 deblock sao
[04:26:50] sync: first pts video is 0
[04:26:50] sync: "Chapter 1" (1) at frame 1 time 0
[04:26:50] sync: first pts audio 0x1 is 0
[04:40:02] reader: done. 1 scr changes
[04:40:13] work: average encoding speed for job is 5.245789 fps
[04:40:13] comb detect: heavy 3 | light 10 | uncombed 4198 | total 4211
[04:40:13] decomb: deinterlaced 3 | blended 10 | unfiltered 4198 | total 4211
[04:40:13] vfr: 4211 frames output, 0 dropped and 0 duped for CFR/PFR
[04:40:13] vfr: lost time: 0 (0 frames)
[04:40:13] vfr: gained time: 0 (0 frames) (0 not accounted for)
[04:40:13] aac-decoder done: 6052 frames, 0 decoder errors
[04:40:13] h264-decoder done: 4211 frames, 0 decoder errors
[04:40:13] sync: got 4211 frames, 4211 expected
[04:40:13] sync: framerate min 18.394 fps, max 29.970 fps, avg 29.966 fps
x265 [info]: frame I:     18, Avg QP:24.13  kb/s: 2900.85
x265 [info]: frame P:   1079, Avg QP:26.64  kb/s: 1040.14
x265 [info]: frame B:   3114, Avg QP:33.15  kb/s: 235.18
x265 [info]: Weighted P-Frames: Y:0.4% UV:0.4%
x265 [info]: consecutive B-frames: 4.0% 1.4% 20.1% 55.7% 18.8%
encoded 4211 frames in 802.93s (5.24 fps), 452.83 kb/s, Avg QP:31.44
[04:40:13] mux: track 0, 4211 frames, 7970061 bytes, 453.68 kbps, fifo 8192
[04:40:13] mux: track 1, 6588 frames, 2254132 bytes, 128.31 kbps, fifo 8192
[04:40:13] libhb: work result = 0

# Encode Completed ...


    


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