---
This could be interesting to mark gray pixel formats category. so that
applications should be able to detect rgb/yuv/gray/mono color types only
by looking at pixdesc.flags.
I'll add version bump and doc at commit time, if this patch is deemed useful
Vittorio
libavutil/pixdesc.c | 11 ++++++-----
libavutil/pixdesc.h | 4 ++++
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index 14f84d7..082a041 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -244,7 +244,7 @@ static const AVPixFmtDescriptor
av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.comp = {
{ 0, 1, 0, 0, 8, 0, 7, 1 }, /* Y */
},
- .flags = AV_PIX_FMT_FLAG_PSEUDOPAL,
+ .flags = AV_PIX_FMT_FLAG_PSEUDOPAL | AV_PIX_FMT_FLAG_GRAY,
.alias = "gray8,y8",
},
[AV_PIX_FMT_MONOWHITE] = {
@@ -501,7 +501,7 @@ static const AVPixFmtDescriptor
av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.comp = {
{ 0, 2, 0, 0, 16, 1, 15, 1 }, /* Y */
},
- .flags = AV_PIX_FMT_FLAG_BE,
+ .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_GRAY,
.alias = "y16be",
},
[AV_PIX_FMT_GRAY16LE] = {
@@ -512,6 +512,7 @@ static const AVPixFmtDescriptor
av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.comp = {
{ 0, 2, 0, 0, 16, 1, 15, 1 }, /* Y */
},
+ .flags = AV_PIX_FMT_FLAG_GRAY,
.alias = "y16le",
},
[AV_PIX_FMT_YUV440P] = {
@@ -1352,7 +1353,7 @@ static const AVPixFmtDescriptor
av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
{ 0, 2, 0, 0, 8, 1, 7, 1 }, /* Y */
{ 0, 2, 1, 0, 8, 1, 7, 2 }, /* A */
},
- .flags = AV_PIX_FMT_FLAG_ALPHA,
+ .flags = AV_PIX_FMT_FLAG_ALPHA | AV_PIX_FMT_FLAG_GRAY,
.alias = "gray8a",
},
[AV_PIX_FMT_YA16LE] = {
@@ -1362,7 +1363,7 @@ static const AVPixFmtDescriptor
av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
{ 0, 4, 0, 0, 16, 3, 15, 1 }, /* Y */
{ 0, 4, 2, 0, 16, 3, 15, 3 }, /* A */
},
- .flags = AV_PIX_FMT_FLAG_ALPHA,
+ .flags = AV_PIX_FMT_FLAG_ALPHA | AV_PIX_FMT_FLAG_GRAY,
},
[AV_PIX_FMT_YA16BE] = {
.name = "ya16be",
@@ -1371,7 +1372,7 @@ static const AVPixFmtDescriptor
av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
{ 0, 4, 0, 0, 16, 3, 15, 1 }, /* Y */
{ 0, 4, 2, 0, 16, 3, 15, 3 }, /* A */
},
- .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_ALPHA,
+ .flags = AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_ALPHA |
AV_PIX_FMT_FLAG_GRAY,
},
[AV_PIX_FMT_GBRP] = {
.name = "gbrp",
diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h
index ea84fd3..7ebec09 100644
--- a/libavutil/pixdesc.h
+++ b/libavutil/pixdesc.h
@@ -151,6 +151,10 @@ typedef struct AVPixFmtDescriptor {
* The pixel format has an alpha channel.
*/
#define AV_PIX_FMT_FLAG_ALPHA (1 << 7)
+/**
+ * The pixel format is grayscale.
+ */
+#define AV_PIX_FMT_FLAG_GRAY (1 << 8)
/**
* Read a line from an image, and write the values of the
--
1.9.5 (Apple Git-50.3)
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