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Issue #2357 - VPXDecoder does not decode alpha frames.

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Another requirement to have transparency in videos. Straight port of Firefox 53 implementation, save for some oddities relating to needing to put uint8_t instead of uint8 in yuv_convert to get this to compile.

Ref: BZ 1321076, 1329104
This commit is contained in:
Jeremy Andrews 2023-10-23 22:20:36 -05:00 • committed by roytam1
commit c0ba3a8d2e
9 changed files with 315 additions and 65 deletions
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7
dom/media/platforms/ffmpeg/FFmpegDecoderModule.h
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@ -32,6 +32,13 @@ public:
already_AddRefed<MediaDataDecoder>
CreateVideoDecoder(const CreateDecoderParams& aParams) override
{
// Temporary - forces use of VPXDecoder when alpha is present.
// Bug 1263836 will handle alpha scenario once implemented. It will shift
// the check for alpha to PDMFactory but not itself remove the need for a
// check.
if (aParams.VideoConfig().HasAlpha()) {
return nullptr;
}
RefPtr<MediaDataDecoder> decoder =
new FFmpegVideoDecoder<V>(mLib,
aParams.mTaskQueue,