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avplayer NV12 frame copy

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Kravickas 2026-04-05 14:44:00 +02:00 committed by GitHub
parent 304a2c7c78
commit c9fe38fd96
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1 changed files with 15 additions and 11 deletions
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26
src/core/libraries/avplayer/avplayer_source.cpp
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@ -551,18 +551,22 @@ static void CopyNV12Data(u8* dst, const AVFrame& src, bool use_vdec2) {
height = Common::AlignUp(height, 16);
}
if (src.width == width) {
std::memcpy(dst, src.data[0], src.width * src.height);
std::memcpy(dst + src.width * height, src.data[1], (src.width * src.height) / 2);
// Copy Y plane: source stride is linesize[0], destination stride is width.
if (u32(src.linesize[0]) == width) {
std::memcpy(dst, src.data[0], width * src.height);
} else {
const auto luma_dst = dst;
for (u32 y = 0; y < src.height; ++y) {
std::memcpy(luma_dst + y * width, src.data[0] + y * src.width, src.width);
for (u32 y = 0; y < u32(src.height); ++y) {
std::memcpy(dst + y * width, src.data[0] + y * src.linesize[0], src.width);
}
const auto chroma_dst = dst + width * height;
for (u32 y = 0; y < src.height / 2; ++y) {
std::memcpy(chroma_dst + y * (width / 2), src.data[0] + y * (src.width / 2),
src.width / 2);
}
// Copy interleaved UV plane: source stride is linesize[1], destination stride is width.
const auto chroma_dst = dst + width * height;
if (u32(src.linesize[1]) == width) {
std::memcpy(chroma_dst, src.data[1], width * (src.height / 2));
} else {
for (u32 y = 0; y < u32(src.height) / 2; ++y) {
std::memcpy(chroma_dst + y * width, src.data[1] + y * src.linesize[1], src.width);
}
}
}
@ -605,7 +609,7 @@ Frame AvPlayerSource::PrepareVideoFrame(GuestBuffer buffer, const AVFrame& frame
.crop_top_offset = u32(frame.crop_top),
.crop_bottom_offset =
u32(frame.crop_bottom + (height - frame.height)),
.pitch = u32(frame.linesize[0]),
.pitch = width,
.luma_bit_depth = 8,
.chroma_bit_depth = 8,
},