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403 results
Show changes
Commits on Source (2)
......@@ -402,6 +402,83 @@ cvpx_map_TransferFunction_from_vtf(video_transfer_func_t transfer_func)
return NULL;
}
bool cvpx_has_attachment(CVPixelBufferRef pixelBuffer, CFStringRef key) {
if (__builtin_available(macOS 10.12, iOS 15, *)) {
return CVBufferHasAttachment(pixelBuffer, key);
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
return CVBufferGetAttachment(pixelBuffer, key, NULL) != NULL;
#pragma clang diagnostic pop
}
void cvpx_attach_mapped_color_properties(CVPixelBufferRef cvpx,
const video_format_t *fmt)
{
if (!cvpx_has_attachment(cvpx, kCVImageBufferYCbCrMatrixKey))
{
CFStringRef color_matrix =
cvpx_map_YCbCrMatrix_from_vcs(fmt->space);
if (color_matrix) {
CVBufferSetAttachment(
cvpx,
kCVImageBufferYCbCrMatrixKey,
color_matrix,
kCVAttachmentMode_ShouldPropagate
);
}
}
if (!cvpx_has_attachment(cvpx, kCVImageBufferColorPrimariesKey))
{
CFStringRef color_primaries =
cvpx_map_ColorPrimaries_from_vcp(fmt->primaries);
if (color_primaries) {
CVBufferSetAttachment(
cvpx,
kCVImageBufferColorPrimariesKey,
color_primaries,
kCVAttachmentMode_ShouldPropagate
);
}
}
if (!cvpx_has_attachment(cvpx, kCVImageBufferTransferFunctionKey))
{
CFStringRef color_transfer_func =
cvpx_map_TransferFunction_from_vtf(fmt->transfer);
if (color_transfer_func) {
CVBufferSetAttachment(
cvpx,
kCVImageBufferTransferFunctionKey,
color_transfer_func,
kCVAttachmentMode_ShouldPropagate
);
}
}
if (!cvpx_has_attachment(cvpx, kCVImageBufferGammaLevelKey))
{
Float32 gamma = 0;
if (fmt->transfer == TRANSFER_FUNC_SRGB)
gamma = 2.2;
if (gamma != 0) {
CFNumberRef value =
CFNumberCreate(NULL, kCFNumberFloat32Type, &gamma);
CVBufferSetAttachment(
cvpx,
kCVImageBufferGammaLevelKey,
value,
kCVAttachmentMode_ShouldPropagate
);
CFRelease(value);
}
}
}
struct cvpx_video_context
{
const struct vlc_video_context_operations *ops;
......
......@@ -107,6 +107,29 @@ cvpx_map_ColorPrimaries_from_vcp(video_color_primaries_t color_primaries);
CFStringRef
cvpx_map_TransferFunction_from_vtf(video_transfer_func_t transfer_func);
/**
* @brief Check if an image buffer has an attachment corresponding to the key
* parameter
*
* @param pixelBuffer the image buffer where attachment is searched
* @param key the attachment's key to search
* @return true if attachment is present
* @return false if key didn't match any attachment
*/
bool cvpx_has_attachment(CVPixelBufferRef pixelBuffer, CFStringRef key);
/**
* @brief Try to map and attach kCVImageBufferYCbCrMatrixKey,
* kCVImageBufferColorPrimariesKey, kCVImageBufferTransferFunctionKey and
* kCVImageBufferGammaLevelKey if correspondance is found from a video_format_t.
* Attachments can be optionally kept if already present or overwritten
*
* @param cvpx The image buffer where properties will be attached
* @param fmt The video format that contains the source color properties
*/
void cvpx_attach_mapped_color_properties(CVPixelBufferRef cvpx,
const video_format_t *fmt);
enum cvpx_video_context_type
{
CVPX_VIDEO_CONTEXT_DEFAULT,
......
......@@ -198,6 +198,8 @@ static picture_t *SW_TO_CVPX_Filter(filter_t *p_filter, picture_t *src)
return NULL;
}
cvpx_attach_mapped_color_properties(cvpx, &p_sys->sw.fmt);
/* Allocate a CPVX backed picture mapped for read/write */
picture_t *mapped_dst =
cvpxpic_create_mapped(&p_sys->sw.fmt, cvpx, p_filter->vctx_out, false);
......