[FFmpeg-devel] [PATCH v4 01/16] pixfmt: add AV_PIX_FMT_GBRAP32

[Lynne]

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