[FFmpeg-devel] [PATCH] Add YUV-based floating-point pixel formats.
Andrew Sun
adsun701 at gmail.com
Sat Jul 28 02:05:01 EEST 2018
This commit adds support for 32-bpc YUV-based floating-point pixel formats.
---
doc/APIchanges | 2 ++
libavutil/pixdesc.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++
libavutil/pixfmt.h | 11 ++++++++
libavutil/version.h | 2 +-
4 files changed, 89 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index 4effbf9364..980b6e01bf 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -14,6 +14,8 @@ libavutil: 2015-08-28
API changes, most recent first:
+2017-09-01 - xxxxxxx - lavu 57.82.100 - pixfmt.h
+ Add YUV-based floating-point pixel formats.
2017-09-01 - xxxxxxx - lavf 57.81.100 - avio.h
Add avio_read_partial().
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index d45eae5772..d954866470 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -2237,6 +2237,81 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA |
AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_FLOAT,
},
+ [AV_PIX_FMT_YUV420PF32BE] = {
+ .name = "yuv420pf32be",
+ .nb_components = 3,
+ .log2_chroma_w = 1,
+ .log2_chroma_h = 1,
+ .comp = {
+ { 0, 4, 0, 0, 32, 3, 31, 1 }, /* R */
+ { 1, 4, 0, 0, 32, 3, 31, 1 }, /* G */
+ { 2, 4, 0, 0, 32, 3, 31, 1 }, /* B */
+ },
+ .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+ AV_PIX_FMT_FLAG_FLOAT,
+ },
+ [AV_PIX_FMT_YUV420PF32LE] = {
+ .name = "yuv420pf32le",
+ .nb_components = 3,
+ .log2_chroma_w = 1,
+ .log2_chroma_h = 1,
+ .comp = {
+ { 0, 4, 0, 0, 32, 3, 31, 1 }, /* R */
+ { 1, 4, 0, 0, 32, 3, 31, 1 }, /* G */
+ { 2, 4, 0, 0, 32, 3, 31, 1 }, /* B */
+ },
+ .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_FLOAT,
+ },
+ [AV_PIX_FMT_YUV422PF32BE] = {
+ .name = "yuv422pf32be",
+ .nb_components = 3,
+ .log2_chroma_w = 1,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 0, 4, 0, 0, 32, 3, 31, 1 }, /* R */
+ { 1, 4, 0, 0, 32, 3, 31, 1 }, /* G */
+ { 2, 4, 0, 0, 32, 3, 31, 1 }, /* B */
+ },
+ .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+ AV_PIX_FMT_FLAG_FLOAT,
+ },
+ [AV_PIX_FMT_YUV422PF32LE] = {
+ .name = "yuv422pf32le",
+ .nb_components = 3,
+ .log2_chroma_w = 1,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 0, 4, 0, 0, 32, 3, 31, 1 }, /* R */
+ { 1, 4, 0, 0, 32, 3, 31, 1 }, /* G */
+ { 2, 4, 0, 0, 32, 3, 31, 1 }, /* B */
+ },
+ .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_FLOAT,
+ },
+ [AV_PIX_FMT_YUV444PF32BE] = {
+ .name = "yuv444pf32be",
+ .nb_components = 3,
+ .log2_chroma_w = 0,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 0, 4, 0, 0, 32, 3, 31, 1 }, /* R */
+ { 1, 4, 0, 0, 32, 3, 31, 1 }, /* G */
+ { 2, 4, 0, 0, 32, 3, 31, 1 }, /* B */
+ },
+ .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR |
+ AV_PIX_FMT_FLAG_FLOAT,
+ },
+ [AV_PIX_FMT_YUV444PF32LE] = {
+ .name = "yuv444pf32le",
+ .nb_components = 3,
+ .log2_chroma_w = 0,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 0, 4, 0, 0, 32, 3, 31, 1 }, /* R */
+ { 1, 4, 0, 0, 32, 3, 31, 1 }, /* G */
+ { 2, 4, 0, 0, 32, 3, 31, 1 }, /* B */
+ },
+ .flags = AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_FLOAT,
+ },
};
#if FF_API_PLUS1_MINUS1
FF_ENABLE_DEPRECATION_WARNINGS
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 6dd094376f..3863e1c9a9 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -334,6 +334,13 @@ enum AVPixelFormat {
AV_PIX_FMT_GBRAPF32BE, ///< IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, big-endian
AV_PIX_FMT_GBRAPF32LE, ///< IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, little-endian
+ AV_PIX_FMT_YUV420PF32BE, ///< IEEE-754 single precision planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples), 48bpp, big-endian
+ AV_PIX_FMT_YUV420PF32LE, ///< IEEE-754 single precision planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples), 48bpp, little-endian
+ AV_PIX_FMT_YUV422PF32BE, ///< IEEE-754 single precision planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples), 64bpp, big-endian
+ AV_PIX_FMT_YUV422PF32LE, ///< IEEE-754 single precision planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples), 64bpp, little-endian
+ AV_PIX_FMT_YUV444PF32BE, ///< IEEE-754 single precision planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples), 96bpp, big-endian
+ AV_PIX_FMT_YUV444PF32LE, ///< IEEE-754 single precision planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples), 96bpp, 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
};
@@ -401,6 +408,10 @@ enum AVPixelFormat {
#define AV_PIX_FMT_GBRPF32 AV_PIX_FMT_NE(GBRPF32BE, GBRPF32LE)
#define AV_PIX_FMT_GBRAPF32 AV_PIX_FMT_NE(GBRAPF32BE, GBRAPF32LE)
+#define AV_PIX_FMT_YUV420PF32 AV_PIX_FMT_NE(YUV420PF32BE, YUV420PF32LE)
+#define AV_PIX_FMT_YUV422PF32 AV_PIX_FMT_NE(YUV422PF32BE, YUV422PF32LE)
+#define AV_PIX_FMT_YUV444PF32 AV_PIX_FMT_NE(YUV444PF32BE, YUV444PF32LE)
+
#define AV_PIX_FMT_YUVA420P9 AV_PIX_FMT_NE(YUVA420P9BE , YUVA420P9LE)
#define AV_PIX_FMT_YUVA422P9 AV_PIX_FMT_NE(YUVA422P9BE , YUVA422P9LE)
#define AV_PIX_FMT_YUVA444P9 AV_PIX_FMT_NE(YUVA444P9BE , YUVA444P9LE)
diff --git a/libavutil/version.h b/libavutil/version.h
index 6e25b4690c..d99eff5d15 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -80,7 +80,7 @@
#define LIBAVUTIL_VERSION_MAJOR 55
-#define LIBAVUTIL_VERSION_MINOR 74
+#define LIBAVUTIL_VERSION_MINOR 75
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
--
2.14.1
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