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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (10696)

  • How to get CMSampleBufferRef from AudioQueueBufferRef

    26 novembre 2015, par arturdev

    I am using a private library which was made for live broadcasting from iPhone.
    In every time of recording each frame it call a delegate function

    void MyAQInputCallback(void *inUserData, 
                              AudioQueueRef inQueue,
                              AudioQueueBufferRef inBuffer,
                              const AudioTimeStamp *inStartTime,
                              UInt32 inNumPackets,
                              const AudioStreamPacketDescription *inPacketDesc) ;

    Now how I can append this inBuffer to my AVAssetWriterInput as usual :

    [self.audioWriterInput appendSampleBuffer:sampleBuffer];

    I think maybe convert AudioQueueBufferRef to CMSampleBufferRef somehow ?

    Thank you.

  • FFMPEG "Could not allocate memory" Errors through php

    10 décembre 2019, par Applepiee

    I’ve tried to find a solution online for days now but cannot find any solution.

    I just switched server (Intel Xeon to AMD) and since the switch I’ve not been able to get ffmpeg conversions working through the php script. ffmpeg was the exact same version and all php settings are set.

    All commands that the script executes (copied from log files) were tried in shell and executed with no problems.

    The errors look like this :

    [124] =>       handler_name    : Video Media Handler
    
    [125] =>     Stream #8:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 160 kb/s (default)
    
    [126] =>     Metadata:
    
    [127] =>       handler_name    : Sound Media Handler
    
    [128] => Stream mapping:
    
    [129] =>   Stream #0:0 (h264) -> concat:in0:v0
    
    [130] =>   Stream #1:0 (h264) -> concat:in1:v0
    
    [131] =>   Stream #2:0 (h264) -> concat:in2:v0
    
    [132] =>   Stream #3:0 (h264) -> concat:in3:v0
    
    [133] =>   Stream #4:0 (h264) -> concat:in4:v0
    
    [134] =>   Stream #5:0 (h264) -> concat:in5:v0
    
    [135] =>   Stream #6:0 (h264) -> concat:in6:v0
    
    [136] =>   Stream #7:0 (h264) -> concat:in7:v0
    
    [137] =>   scale -> Stream #0:0 (libvpx)
    
    [138] => Press [q] to stop, [?] for help
    
    [139] => [h264 @ 0x34f1dc0] get_buffer() failed
    
    [140] => [h264 @ 0x34f1dc0] thread_get_buffer() failed
    
    [141] => [h264 @ 0x34f1dc0] decode_slice_header error
    
    [142] => [h264 @ 0x34f1dc0] no frame!
    
    [143] => [h264 @ 0x350e680] Error splitting the input into NAL units.
    
    [144] => [h264 @ 0x352af40] Cannot allocate memory.
    
    [145] => [h264 @ 0x352af40] Could not allocate memory
    
    [146] => [h264 @ 0x352af40] h264_slice_header_init() failedError while decoding stream #0:0: Cannot allocate memory
    
    [147] => [h264 @ 0x352af40] Cannot allocate memory.
    
    [148] => [h264 @ 0x352af40] Could not allocate memory
    
    [149] => [h264 @ 0x352af40] h264_slice_header_init() failedError while decoding stream #0:0: Cannot allocate memory
    
    [150] => [h264 @ 0x352af40] Cannot allocate memory.
    
    [151] => [h264 @ 0x352af40] Could not allocate memory
    
    [152] => [h264 @ 0x352af40] h264_slice_header_init() failedError while decoding stream #0:0: Cannot allocate memory
    
    [153] => [h264 @ 0x352af40] Cannot allocate memory.
    
    [154] => [h264 @ 0x352af40] Could not allocate memory
    
    [155] => [h264 @ 0x352af40] h264_slice_header_init() failedError while decoding stream #0:0: Cannot allocate memory
    
    [156] => [h264 @ 0x352af40] Cannot allocate memory.
    
    [157] => [h264 @ 0x352af40] Could not allocate memory
    
...
    
..
    
  [211519] => [h264 @ 0x886a3c0] h264_slice_header_init() failedToo many errors when draining, this is a bug. Stop draining and force EOF.
    
    [211520] => Error while decoding stream #7:0: Internal bug, should not have happened
    
    [211521] => Cannot allocate memory.
    
    [211522] => sws: initFilter failed
    
    [211523] => [Parsed_scale_1 @ 0x8e0be40] Failed to configure output pad on Parsed_scale_1
    
    [211524] => Error reinitializing filters!
    
    [211525] => Error while filtering: Operation not permitted
    
    [211526] => Finishing stream 0:0 without any data written to it.
    
    [211527] => [libvpx @ 0x6f4c600] v1.8.1-301-g89375f031
    
    [211528] => Output #0, webm, to '/home/website/public_html/media/videos/tmb/2420/video_copy.webm':
    
    [211529] =>   Metadata:
    
    [211530] =>     major_brand     : isom
    
    [211531] =>     minor_version   : 512
    
    [211532] =>     compatible_brands: isomiso2avc1mp41
    
    [211533] =>     title           : Aibeya The Animation
    
    [211534] =>     encoder         : Lavf58.35.100
    
    [211535] =>     Chapter #0:0: start 0.000000, end 102.102000
    
    [211536] =>     Metadata:
    
    [211537] =>       title           : Intro
    
    [211538] =>     Chapter #0:1: start 102.102000, end 110.369000
    
    [211539] =>     Metadata:
    
    [211540] =>       title           : Title
    
    [211541] =>     Chapter #0:2: start 110.369000, end 312.179000
    
    [211542] =>     Metadata:
    
    [211543] =>       title           : Part 1
    
    [211544] =>     Chapter #0:3: start 312.179000, end 548.415000
    
    [211545] =>     Metadata:
    
    [211546] =>       title           : Part 2
    
    [211547] =>     Chapter #0:4: start 548.415000, end 706.831000
    
    [211548] =>     Metadata:
    
    [211549] =>       title           : Part 3
    
    [211550] =>     Chapter #0:5: start 706.831000, end 1011.052000
    
    [211551] =>     Metadata:
    
    [211552] =>       title           : Part 4
    
    [211553] =>     Chapter #0:6: start 1011.052000, end 1198.823000
    
    [211554] =>     Metadata:
    
    [211555] =>       title           : Part 5
    
    [211556] =>     Chapter #0:7: start 1198.823000, end 1501.408000
    
    [211557] =>     Metadata:
    
    [211558] =>       title           : Part 6
    
    [211559] =>     Chapter #0:8: start 1501.408000, end 1579.945000
    
    [211560] =>     Metadata:
    
    [211561] =>       title           : Part 7
    
    [211562] =>     Chapter #0:9: start 1579.945000, end 1654.293000
    
    [211563] =>     Metadata:
    
    [211564] =>       title           : Ending
    
    [211565] =>     Stream #0:0: Video: vp8 (libvpx), yuv420p, 400x240 [SAR 837:785 DAR 279:157], q=10-42, 250 kb/s, 23.98 fps, 1k tbn, 23.98 tbc (default)
    
    [211566] =>     Metadata:
    
    [211567] =>       encoder         : Lavc58.64.101 libvpx
    
    [211568] =>     Side data:
    
    [211569] =>       cpb: bitrate max/min/avg: 0/0/0 buffer size: 600000 vbv_delay: N/A
    
    [211570] => frame=    0 fps=0.0 q=0.0 Lsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x
    
    [211571] => video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
    [211572] => Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
    
    [211573] => Conversion failed!
    
)

    Command example used :

    ffmpeg_command is /usr/local/bin/ffmpeg -ss 100 -t 1 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 197 -t 2 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 294 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 391 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 488 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 585 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 682 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 779 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -ss 876 -t 3 -i /home/website/public_html/media/videos/iphone/2407.mp4 -filter_complex "[0][1][2][3][4][5][6][7]concat=n=8:v=1:a=0",scale=400:240 -codec:v libx264 -unsharp -b:v 250k -maxrate 250k -bufsize 600k -qmin 10 -qmax 42 -threads 4 -an -y /home/website/public_html/media/videos/tmb/2407/video_copy.mp4

    PHP Info :
    PHP 5.6
    memory_limit 2001M
    max_execution_time 7200
    upload_max_filesize 2000M
    post_max_size 2000M
    max_input_time 7200
    exec is not disabled

    Server info
    CentOS Linux 7 (Core)
    ADVANCE-4 - AMD Epyc 7351P - 128GB DDR4 ECC 2400MHz - 2x HDD SATA 4TB Datacenter Class + 2x SSD NVMe 500GB Enterprise Class Soft RAID

    All help is really appreciated ! Thanks in advance

  • FFmpeg enable videotoolbox on iOS

    27 février 2016, par bigbangvn

    I build FFmpeg for iOS and have enabled VideoToolbox, but when decoding video use function avcodec_decode_video2, it doesn’t use VideoToolbox and very slow on iPhone.
    I use the example demuxing_decoding here : https://ffmpeg.org/doxygen/trunk/demuxing_decoding_8c-example.html
    and have try to setup VideoToolbox decoding without success.

    Have anyone encountered that problem ?

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