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lavu/pixfmt: add AV_PIX_FMT_RGBA128

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This format is useful for doing certain lossless transforms on images,
RCT in particular, which require you to escalate the size from 16 to
32 bits to avoid overflows.

APIchanges will be done alongside when comitting.
This commit is contained in:
Lynne
2024-10-10 06:50:06 +02:00
parent 9ce63e65d6
commit 281bba1d26
4 changed files with 47 additions and 0 deletions
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27
libavutil/pixdesc.c
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@ -2828,6 +2828,33 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_FLOAT |
AV_PIX_FMT_FLAG_ALPHA,
},
[AV_PIX_FMT_RGBA128BE] = {
.name = "rgba128be",
.nb_components = 4,
.log2_chroma_w = 0,
.log2_chroma_h = 0,
.comp = {
{ 0, 16, 0, 0, 32 }, /* R */
{ 0, 16, 4, 0, 32 }, /* G */
{ 0, 16, 8, 0, 32 }, /* B */
{ 0, 16, 12, 0, 32 }, /* A */
},
.flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_RGB |
AV_PIX_FMT_FLAG_ALPHA,
},
[AV_PIX_FMT_RGBA128LE] = {
.name = "rgba128le",
.nb_components = 4,
.log2_chroma_w = 0,
.log2_chroma_h = 0,
.comp = {
{ 0, 16, 0, 0, 32 }, /* R */
{ 0, 16, 4, 0, 32 }, /* G */
{ 0, 16, 8, 0, 32 }, /* B */
{ 0, 16, 12, 0, 32 }, /* A */
},
.flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
},
[AV_PIX_FMT_P212BE] = {
.name = "p212be",
.nb_components = 3,