Changes between Version 2 and Version 3 of Ticket #4231


Ignore:
Timestamp:
Feb 17, 2016, 1:53:48 PM (3 years ago)
Author:
cehoyos
Comment:

If it is still reproducible it is a missing feature in Chrome, C420mpeg2 was added a decade ago.

$ yuv4mpeg -x help
yuv4mpeg -x usage: Only the 3 plane formats are actually supported
        420jpeg - 4:2:0 JPEG/MPEG-1 (interstitial)
        420mpeg2 - 4:2:0 MPEG-2 (horiz. cositing)
        420paldv - 4:2:0 PAL-DV (altern. siting)
        444 - 4:4:4 (no subsampling)
        422 - 4:2:2 (horiz. cositing)
        411 - 4:1:1 (horiz. cositing)
        mono - luma plane only
        444alpha - 4:4:4 with alpha channel

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  • Ticket #4231

    • Property Status changed from new to closed
    • Property Component changed from ffmpeg to avformat
    • Property Resolution changed from to invalid
  • Ticket #4231 – Description

    v2 v3  
    1515I also tried (same end result) :
    1616
    17  * {{{ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -y does_not_play_in_chrome.y4m }}}
     17 * {{{ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -y does_not_play_in_chrome.y4m }}}
    1818
    1919
    2020 * {{{ ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -pix_fmt yuv420p -y does_not_play_in_chrome.y4m }}}
    2121
    22 To test it, start chrome with the flags {{{--use-file-for-fake-video-capture=does_not_play_in_chrome.y4m --use-fake-device-for-media-stream }}}, and trigger a media access (ex. by accessing https://apprtc.appspot.com/).
     22To test it, start chrome with the flags {{{--use-file-for-fake-video-capture=does_not_play_in_chrome.y4m --use-fake-device-for-media-stream }}}, and trigger a media access (ex. by accessing https://apprtc.appspot.com/).
    2323
    2424