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From: Lynne <dev@lynne.ee>
To: ffmpeg-devel@ffmpeg.org
Date: Thu, 13 Mar 2025 18:03:33 +0100
Message-ID: <20250313170355.92290-2-dev@lynne.ee>
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Subject: [FFmpeg-devel] [PATCH v4 01/16] pixfmt: add AV_PIX_FMT_GBRAP32
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This commit adds a 32-bit *integer* planar RGBA format.
Vulkan FFv1 decoding is best performed on separate planes, rather than
packed RGBA (i.e. RGBA128), hence this is useful as an intermediate format.
---
libavutil/pixdesc.c | 28 ++++++++++++++++++++++++++++
libavutil/pixfmt.h | 4 ++++
2 files changed, 32 insertions(+)
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index 1917ae74d8..53adde5aba 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -1991,6 +1991,34 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
},
+ [AV_PIX_FMT_GBRAP32LE] = {
+ .name = "gbrap32le",
+ .nb_components = 4,
+ .log2_chroma_w = 0,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 2, 4, 0, 0, 32 }, /* R */
+ { 0, 4, 0, 0, 32 }, /* G */
+ { 1, 4, 0, 0, 32 }, /* B */
+ { 3, 4, 0, 0, 32 }, /* A */
+ },
+ .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB |
+ AV_PIX_FMT_FLAG_ALPHA,
+ },
+ [AV_PIX_FMT_GBRAP32BE] = {
+ .name = "gbrap32be",
+ .nb_components = 4,
+ .log2_chroma_w = 0,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 2, 4, 0, 0, 32 }, /* R */
+ { 0, 4, 0, 0, 32 }, /* G */
+ { 1, 4, 0, 0, 32 }, /* B */
+ { 3, 4, 0, 0, 32 }, /* A */
+ },
+ .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+ AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_ALPHA,
+ },
[AV_PIX_FMT_VDPAU] = {
.name = "vdpau",
.log2_chroma_w = 1,
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index e6d2b08c5c..bf1b8ed008 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -485,6 +485,9 @@ enum AVPixelFormat {
AV_PIX_FMT_YAF16BE, ///< IEEE-754 half precision packed YA, 16 bits gray, 16 bits alpha, 32bpp, big-endian
AV_PIX_FMT_YAF16LE, ///< IEEE-754 half precision packed YA, 16 bits gray, 16 bits alpha, 32bpp, little-endian
+ AV_PIX_FMT_GBRAP32BE, ///< planar GBRA 4:4:4:4 128bpp, big-endian
+ AV_PIX_FMT_GBRAP32LE, ///< planar GBRA 4:4:4:4 128bpp, little-endian
+
AV_PIX_FMT_NB ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
};
@@ -546,6 +549,7 @@ enum AVPixelFormat {
#define AV_PIX_FMT_GBRAP12 AV_PIX_FMT_NE(GBRAP12BE, GBRAP12LE)
#define AV_PIX_FMT_GBRAP14 AV_PIX_FMT_NE(GBRAP14BE, GBRAP14LE)
#define AV_PIX_FMT_GBRAP16 AV_PIX_FMT_NE(GBRAP16BE, GBRAP16LE)
+#define AV_PIX_FMT_GBRAP32 AV_PIX_FMT_NE(GBRAP32BE, GBRAP32LE)
#define AV_PIX_FMT_BAYER_BGGR16 AV_PIX_FMT_NE(BAYER_BGGR16BE, BAYER_BGGR16LE)
#define AV_PIX_FMT_BAYER_RGGB16 AV_PIX_FMT_NE(BAYER_RGGB16BE, BAYER_RGGB16LE)
--
2.47.2
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