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Changes between Version 3 and Version 4 of Ticket #95, comment 6


Ignore:
Timestamp:
04/04/12 12:23:09 (9 years ago)
Author:
ahuillet
Comment:

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  • Ticket #95, comment 6

    v3 v4  
    11I've dumped the data at various points:
    22
    3 - input to compress_image, data isn't corrupted
    4 - compressed stream replays fine with mplayer (no corruption)
    5 - after colorspace conversion, data isn't corrupted
    6 - after decompression, data is corrupted
     3- the input to compress_image is not corrupted
     4- after colorspace conversion to YUV, the data isn't corrupted
     5- the compressed stream replays fine with mplayer (no corruption)
     6- the compressed stream as dumped by decompress_image isn't corrupted
     7- after decompression, the image isn't corrupted
    78
    8 So the *transfer*, or actual *decompression* is to blame.
     9So the problem is in the final YUV420 -> RGB colorspace conversion.
    910
    1011Note: the corrupted zone seems to be exactly 4 pixels wide - actually it seems to be tied to modulo 16. If the width is divisible by 16, no corruption appears.