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-rw-r--r--src/stream.c181
1 files changed, 167 insertions, 14 deletions
diff --git a/src/stream.c b/src/stream.c
index b69f9a5..ef57b93 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -95,6 +95,8 @@ enopen_stream(int status, struct stream *stream, const char *file)
int
set_pixel_format(struct stream *stream, const char *pixfmt)
{
+#define TEST_ENCODING_AGNOSTIC(FMT) (!strcmp(stream->pixfmt, FMT) || !strcmp(stream->pixfmt, FMT" f"))
+
if (pixfmt) {
pixfmt = get_pixel_format(pixfmt, "xyza");
if (strlen(pixfmt) >= sizeof(stream->pixfmt))
@@ -102,27 +104,101 @@ set_pixel_format(struct stream *stream, const char *pixfmt)
strcpy(stream->pixfmt, pixfmt);
}
+ stream->n_chan = 4;
+ stream->alpha = UNPREMULTIPLIED;
+ stream->encoding = DOUBLE;
+ stream->endian = HOST_ENDIAN;
+ stream->alpha_chan = 3;
+ stream->luma_chan = -1;
+
if (!strcmp(stream->pixfmt, "xyza")) {
- stream->n_chan = 4;
- stream->chan_size = sizeof(double);
stream->space = CIEXYZ;
- stream->alpha = UNPREMULTIPLIED;
- stream->encoding = DOUBLE;
} else if (!strcmp(stream->pixfmt, "xyza f")) {
- stream->n_chan = 4;
- stream->chan_size = sizeof(float);
stream->space = CIEXYZ;
- stream->alpha = UNPREMULTIPLIED;
stream->encoding = FLOAT;
+ } else if (!strcmp(stream->pixfmt, "raw0")) {
+ stream->space = YUV_NONLINEAR;
+ stream->encoding = UINT16;
+ stream->endian = LITTLE_ENDIAN;
+ stream->alpha_chan = 0;
+ stream->luma_chan = 1;
+ } else if (!strcmp(stream->pixfmt, "raw1")) {
+ stream->space = YUV_NONLINEAR;
+ stream->encoding = UINT16;
+ stream->endian = LITTLE_ENDIAN;
+ } else if (!strcmp(stream->pixfmt, "raw2a") || !strcmp(stream->pixfmt, "raw2")) {
+ stream->space = YUV_NONLINEAR;
+ stream->alpha = stream->pixfmt[4] == 'a' ? UNPREMULTIPLIED : NO_ALPHA;
+ stream->encoding = UINT16;
+ } else if (TEST_ENCODING_AGNOSTIC("raw3") || TEST_ENCODING_AGNOSTIC("raw3a")) {
+ stream->space = YUV_NONLINEAR;
+ stream->alpha = stream->pixfmt[4] == 'a' ? UNPREMULTIPLIED : NO_ALPHA;
+ stream->encoding = strlen(stream->pixfmt) > 6 ? FLOAT : DOUBLE;
+ } else if (TEST_ENCODING_AGNOSTIC("raw4") || TEST_ENCODING_AGNOSTIC("raw4a")) {
+ stream->space = CIEXYZ_NONLINEAR;
+ stream->alpha = stream->pixfmt[4] == 'a' ? UNPREMULTIPLIED : NO_ALPHA;
+ stream->encoding = strlen(stream->pixfmt) > 6 ? FLOAT : DOUBLE;
+ } else if (TEST_ENCODING_AGNOSTIC("raw5") || TEST_ENCODING_AGNOSTIC("raw5a")) {
+ stream->space = SRGB_NONLINEAR;
+ stream->alpha = stream->pixfmt[4] == 'a' ? UNPREMULTIPLIED : NO_ALPHA;
+ stream->encoding = strlen(stream->pixfmt) > 6 ? FLOAT : DOUBLE;
+ } else if (TEST_ENCODING_AGNOSTIC("raw6") || TEST_ENCODING_AGNOSTIC("raw6a")) {
+ stream->space = SRGB;
+ stream->alpha = stream->pixfmt[4] == 'a' ? UNPREMULTIPLIED : NO_ALPHA;
+ stream->encoding = strlen(stream->pixfmt) > 6 ? FLOAT : DOUBLE;
} else {
return -1;
}
+ if (stream->alpha == NO_ALPHA) {
+ stream->n_chan -= 1;
+ stream->alpha_chan = -1;
+ }
+
+ if (stream->luma_chan == -1) {
+ switch (stream->space) {
+ case CIEXYZ:
+ case CIEXYZ_NONLINEAR:
+ stream->luma_chan = 1;
+ break;
+ case YUV_NONLINEAR:
+ stream->luma_chan = 0;
+ break;
+ default:
+ break;
+ }
+ }
+
+ switch (stream->encoding) {
+ case DOUBLE:
+ stream->chan_size = sizeof(double);
+ break;
+ case FLOAT:
+ stream->chan_size = sizeof(float);
+ break;
+ case UINT8:
+ stream->chan_size = sizeof(uint8_t);
+ break;
+ case UINT16:
+ stream->chan_size = sizeof(uint16_t);
+ break;
+ case UINT32:
+ stream->chan_size = sizeof(uint32_t);
+ break;
+ case UINT64:
+ stream->chan_size = sizeof(uint64_t);
+ break;
+ default:
+ abort();
+ }
+
stream->pixel_size = stream->n_chan * stream->chan_size;
stream->row_size = stream->pixel_size * stream->width;
stream->col_size = stream->pixel_size * stream->height;
stream->frame_size = stream->pixel_size * stream->height * stream->width;
return 0;
+
+#undef TEST_ENCODING_AGNOSTIC
}
void
@@ -235,30 +311,107 @@ const char *
get_pixel_format(const char *specified, const char *current)
{
enum colour_space space;
- enum encoding encoding;
+ enum alpha alpha = UNPREMULTIPLIED;
+ enum encoding encoding = DOUBLE;
+ enum endian endian = HOST_ENDIAN;
+ int alpha_first = 0;
if (!strcmp(current, "xyza"))
- space = CIEXYZ, encoding = DOUBLE;
+ space = CIEXYZ;
else if (!strcmp(current, "xyza f"))
- space = CIEXYZ, encoding = FLOAT;
+ space = CIEXYZ;
+ else if (!strcmp(current, "raw0"))
+ space = YUV_NONLINEAR, encoding = UINT16, endian = LITTLE_ENDIAN, alpha_first = 1;
+ else if (!strcmp(current, "raw1"))
+ space = YUV_NONLINEAR, encoding = UINT16, endian = LITTLE_ENDIAN;
+ else if (!strcmp(current, "raw2"))
+ space = YUV_NONLINEAR, encoding = UINT16, alpha = NO_ALPHA;
+ else if (!strcmp(current, "raw2a"))
+ space = YUV_NONLINEAR, encoding = UINT16;
+ else if (!strcmp(current, "raw3"))
+ space = YUV_NONLINEAR, alpha = NO_ALPHA;
+ else if (!strcmp(current, "raw3a"))
+ space = YUV_NONLINEAR;
+ else if (!strcmp(current, "raw4"))
+ space = CIEXYZ_NONLINEAR, alpha = NO_ALPHA;
+ else if (!strcmp(current, "raw4a"))
+ space = CIEXYZ_NONLINEAR;
+ else if (!strcmp(current, "raw5"))
+ space = SRGB_NONLINEAR, alpha = NO_ALPHA;
+ else if (!strcmp(current, "raw5a"))
+ space = SRGB_NONLINEAR;
+ else if (!strcmp(current, "raw6"))
+ space = SRGB, alpha = NO_ALPHA;
+ else if (!strcmp(current, "raw6a"))
+ space = SRGB;
else
return specified;
if (!strcmp(specified, "xyza"))
- space = CIEXYZ;
- else if (!strcmp(specified, "xyza f"))
- return "xyza f";
+ space = CIEXYZ, alpha = UNPREMULTIPLIED;
else if (!strcmp(specified, "xyza !f"))
return "xyza";
else if (!strcmp(specified, "f"))
encoding = FLOAT;
else if (!strcmp(specified, "!f"))
encoding = DOUBLE;
+ else if (!strcmp(specified, "raw3 !f"))
+ return "raw3";
+ else if (!strcmp(specified, "raw3a !f"))
+ return "raw3a";
+ else if (!strcmp(specified, "raw4 !f"))
+ return "raw4";
+ else if (!strcmp(specified, "raw4a !f"))
+ return "raw4a";
+ else if (!strcmp(specified, "raw5 !f"))
+ return "raw5";
+ else if (!strcmp(specified, "raw5a !f"))
+ return "raw5a";
+ else if (!strcmp(specified, "raw6 !f"))
+ return "raw6";
+ else if (!strcmp(specified, "raw6a !f"))
+ return "raw6a";
+ else if (!strcmp(specified, "raw3"))
+ space = YUV_NONLINEAR, alpha = NO_ALPHA;
+ else if (!strcmp(specified, "raw4"))
+ space = CIEXYZ_NONLINEAR, alpha = NO_ALPHA;
+ else if (!strcmp(specified, "raw5"))
+ space = SRGB_NONLINEAR, alpha = NO_ALPHA;
+ else if (!strcmp(specified, "raw6"))
+ space = SRGB, alpha = NO_ALPHA;
+ else if (!strcmp(specified, "raw3a"))
+ space = YUV_NONLINEAR, alpha = UNPREMULTIPLIED;
+ else if (!strcmp(specified, "raw4a"))
+ space = CIEXYZ_NONLINEAR, alpha = UNPREMULTIPLIED;
+ else if (!strcmp(specified, "raw5a"))
+ space = SRGB_NONLINEAR, alpha = UNPREMULTIPLIED;
+ else if (!strcmp(specified, "raw6a"))
+ space = SRGB, alpha = UNPREMULTIPLIED;
else
return specified;
- if (space == CIEXYZ)
+ if (space == CIEXYZ && alpha == UNPREMULTIPLIED)
return encoding == FLOAT ? "xyza f" : "xyza";
+ else if (space == YUV_NONLINEAR && alpha == UNPREMULTIPLIED && encoding == UINT16 && endian == LITTLE_ENDIAN)
+ return alpha_first ? "raw0" : "raw1";
+ else if (space == YUV_NONLINEAR && encoding == UINT16)
+ return alpha ? "raw2" : "raw2a";
+ else if (space == YUV_NONLINEAR && encoding == DOUBLE)
+ return alpha ? "raw3" : "raw3a";
+ else if (space == YUV_NONLINEAR && encoding == FLOAT)
+ return alpha ? "raw3 f" : "raw3a f";
+ else if (space == CIEXYZ_NONLINEAR && encoding == DOUBLE)
+ return alpha ? "raw4" : "raw4a";
+ else if (space == CIEXYZ_NONLINEAR && encoding == FLOAT)
+ return alpha ? "raw4 f" : "raw4a f";
+ else if (space == SRGB_NONLINEAR && encoding == DOUBLE)
+ return alpha ? "raw5" : "raw5a";
+ else if (space == SRGB_NONLINEAR && encoding == FLOAT)
+ return alpha ? "raw5 f" : "raw5a f";
+ else if (space == SRGB && encoding == DOUBLE)
+ return alpha ? "raw6" : "raw6a";
+ else if (space == SRGB && encoding == FLOAT)
+ return alpha ? "raw6 f" : "raw6a f";
else
return specified;
}
generated by cgit v1.2.3-70-g09d2 (git 2.51.0) at 2026-02-18 18:27:00 +0000