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video-converter: add options to control chroma resampling

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Add an option to disable chroma resampling.
Improve the matrix option values so that you can choose to use the input
or output matrix or disable conversion.
This commit is contained in:
Wim Taymans 2015-01-07 15:52:57 +01:00
parent cd45983e86
commit fff41f06be
2 changed files with 79 additions and 29 deletions
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41
gst-libs/gst/video/video-converter.c
View file

@ -527,12 +527,14 @@ get_opt_str (GstVideoConverter * convert, const gchar * opt, const gchar * def)
#define DEFAULT_OPT_FILL_BORDER TRUE
#define DEFAULT_OPT_BORDER_ARGB 0x00000000
/* options full, no-yuv */
/* options full, input-only, output-only, none */
#define DEFAULT_OPT_MATRIX_MODE "full"
/* none, remap */
#define DEFAULT_OPT_GAMMA_MODE "none"
/* none, merge-only, fast */
#define DEFAULT_OPT_PRIMARIES_MODE "none"
/* options full, upsample-only, downsample-only, none */
#define DEFAULT_OPT_CHROMA_MODE "full"
#define DEFAULT_OPT_RESAMPLER_METHOD GST_VIDEO_RESAMPLER_METHOD_CUBIC
#define DEFAULT_OPT_RESAMPLER_TAPS 0
#define DEFAULT_OPT_DITHER_METHOD GST_VIDEO_DITHER_BAYER
@ -548,6 +550,8 @@ get_opt_str (GstVideoConverter * convert, const gchar * opt, const gchar * def)
GST_VIDEO_CONVERTER_OPT_GAMMA_MODE, DEFAULT_OPT_GAMMA_MODE)
#define GET_OPT_PRIMARIES_MODE(c) get_opt_str(c, \
GST_VIDEO_CONVERTER_OPT_PRIMARIES_MODE, DEFAULT_OPT_PRIMARIES_MODE)
#define GET_OPT_CHROMA_MODE(c) get_opt_str(c, \
GST_VIDEO_CONVERTER_OPT_CHROMA_MODE, DEFAULT_OPT_CHROMA_MODE)
#define GET_OPT_RESAMPLER_METHOD(c) get_opt_enum(c, \
GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD, GST_TYPE_VIDEO_RESAMPLER_METHOD, \
DEFAULT_OPT_RESAMPLER_METHOD)
@ -560,7 +564,9 @@ get_opt_str (GstVideoConverter * convert, const gchar * opt, const gchar * def)
GST_VIDEO_CONVERTER_OPT_DITHER_QUANTIZATION, DEFAULT_OPT_DITHER_QUANTIZATION)
#define CHECK_MATRIX_FULL(c) (!g_strcmp0(GET_OPT_MATRIX_MODE(c), "full"))
#define CHECK_MATRIX_NO_YUV(c) (!g_strcmp0(GET_OPT_MATRIX_MODE(c), "no-yuv"))
#define CHECK_MATRIX_INPUT(c) (!g_strcmp0(GET_OPT_MATRIX_MODE(c), "input-only"))
#define CHECK_MATRIX_OUTPUT(c) (!g_strcmp0(GET_OPT_MATRIX_MODE(c), "output-only"))
#define CHECK_MATRIX_NONE(c) (!g_strcmp0(GET_OPT_MATRIX_MODE(c), "none"))
#define CHECK_GAMMA_NONE(c) (!g_strcmp0(GET_OPT_GAMMA_MODE(c), "none"))
#define CHECK_GAMMA_REMAP(c) (!g_strcmp0(GET_OPT_GAMMA_MODE(c), "remap"))
@ -569,6 +575,11 @@ get_opt_str (GstVideoConverter * convert, const gchar * opt, const gchar * def)
#define CHECK_PRIMARIES_MERGE(c) (!g_strcmp0(GET_OPT_PRIMARIES_MODE(c), "merge-only"))
#define CHECK_PRIMARIES_FAST(c) (!g_strcmp0(GET_OPT_PRIMARIES_MODE(c), "fast"))
#define CHECK_CHROMA_FULL(c) (!g_strcmp0(GET_OPT_CHROMA_MODE(c), "full"))
#define CHECK_CHROMA_UPSAMPLE(c) (!g_strcmp0(GET_OPT_CHROMA_MODE(c), "upsample-only"))
#define CHECK_CHROMA_DOWNSAMPLE(c) (!g_strcmp0(GET_OPT_CHROMA_MODE(c), "downsample-only"))
#define CHECK_CHROMA_NONE(c) (!g_strcmp0(GET_OPT_CHROMA_MODE(c), "none"))
static GstLineCache *
chain_unpack_line (GstVideoConverter * convert)
{
@ -994,9 +1005,14 @@ compute_matrix_to_RGB (GstVideoConverter * convert, MatrixData * data)
1 / ((float) scale[1]), 1 / ((float) scale[2]));
}
if (!CHECK_MATRIX_NONE (convert)) {
if (CHECK_MATRIX_OUTPUT (convert))
info = &convert->out_info;
/* bring components to R'G'B' space */
if (gst_video_color_matrix_get_Kr_Kb (info->colorimetry.matrix, &Kr, &Kb))
color_matrix_YCbCr_to_RGB (data, Kr, Kb);
}
color_matrix_debug (data);
}
@ -1007,11 +1023,18 @@ compute_matrix_to_YUV (GstVideoConverter * convert, MatrixData * data)
GstVideoInfo *info;
gdouble Kr = 0, Kb = 0;
if (!CHECK_MATRIX_NONE (convert)) {
if (CHECK_MATRIX_INPUT (convert))
info = &convert->in_info;
else
info = &convert->out_info;
/* bring components to YCbCr space */
if (gst_video_color_matrix_get_Kr_Kb (info->colorimetry.matrix, &Kr, &Kb))
color_matrix_RGB_to_YCbCr (data, Kr, Kb);
}
info = &convert->out_info;
{
const GstVideoFormatInfo *uinfo;
@ -1288,9 +1311,14 @@ chain_convert (GstVideoConverter * convert, GstLineCache * prev)
MatrixData p1, p2;
same_bits = convert->unpack_bits == convert->pack_bits;
if (CHECK_MATRIX_NONE (convert)) {
same_matrix = TRUE;
} else {
same_matrix =
convert->in_info.colorimetry.matrix ==
convert->out_info.colorimetry.matrix;
}
if (CHECK_PRIMARIES_NONE (convert)) {
same_primaries = TRUE;
} else {
@ -1923,6 +1951,9 @@ video_converter_compute_resample (GstVideoConverter * convert)
GstVideoInfo *in_info, *out_info;
const GstVideoFormatInfo *sfinfo, *dfinfo;
if (CHECK_CHROMA_NONE (convert))
return;
in_info = &convert->in_info;
out_info = &convert->out_info;
@ -1939,17 +1970,21 @@ video_converter_compute_resample (GstVideoConverter * convert)
in_info->width != out_info->width ||
in_info->height != out_info->height) {
if (GST_VIDEO_INFO_IS_INTERLACED (in_info)) {
if (!CHECK_CHROMA_DOWNSAMPLE (convert))
convert->upsample_i = gst_video_chroma_resample_new (0,
in_info->chroma_site, GST_VIDEO_CHROMA_FLAG_INTERLACED,
sfinfo->unpack_format, sfinfo->w_sub[2], sfinfo->h_sub[2]);
if (!CHECK_CHROMA_UPSAMPLE (convert))
convert->downsample_i =
gst_video_chroma_resample_new (0, out_info->chroma_site,
GST_VIDEO_CHROMA_FLAG_INTERLACED, dfinfo->unpack_format,
-dfinfo->w_sub[2], -dfinfo->h_sub[2]);
}
if (!CHECK_CHROMA_DOWNSAMPLE (convert))
convert->upsample_p = gst_video_chroma_resample_new (0,
in_info->chroma_site, 0, sfinfo->unpack_format, sfinfo->w_sub[2],
sfinfo->h_sub[2]);
if (!CHECK_CHROMA_UPSAMPLE (convert))
convert->downsample_p = gst_video_chroma_resample_new (0,
out_info->chroma_site, 0, dfinfo->unpack_format, -dfinfo->w_sub[2],
-dfinfo->h_sub[2]);
@ -3137,7 +3172,7 @@ video_converter_lookup_fastpath (GstVideoConverter * convert)
in_format = GST_VIDEO_INFO_FORMAT (&convert->in_info);
out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
if (CHECK_MATRIX_NO_YUV (convert)) {
if (CHECK_MATRIX_NONE (convert)) {
same_matrix = TRUE;
} else {
GstVideoColorMatrix in_matrix, out_matrix;

21
gst-libs/gst/video/video-converter.h
View file

@ -124,13 +124,29 @@ G_BEGIN_DECLS
* is set to %TRUE. Default 0x00000000
*/
#define GST_VIDEO_CONVERTER_OPT_BORDER_ARGB "GstVideoConverter.border-argb"
/**
* GST_VIDEO_CONVERTER_OPT_CHROMA_MODE:
*
* #G_TYPE_STRING, set the chroma resample mode subsampled formats.
*
* "full": do full chroma up and down sampling
* "upsample-only": only perform chroma upsampling
* "downsample-only": only perform chroma downsampling
* "none": disable chroma resampling
*
* Default "full"
*/
#define GST_VIDEO_CONVERTER_OPT_CHROMA_MODE "GstVideoConverter.chroma-mode"
/**
* GST_VIDEO_CONVERTER_OPT_MATRIX_MODE:
*
* #G_TYPE_STRING, set the color matrix conversion mode.
* #G_TYPE_STRING, set the color matrix conversion mode for converting
* between Y'PbPr and non-linear RGB (R'G'B').
*
* "full": do conversion between color matrices
* "no-yuv": disable conversion between yuv color matrices
* "input-only": use the input color matrix to convert to and from R'G'B
* "output-only": use the output color matrix to convert to and from R'G'B
* "none": disable color matrix conversion.
*
* Default "full"
*/
@ -160,7 +176,6 @@ G_BEGIN_DECLS
*/
#define GST_VIDEO_CONVERTER_OPT_PRIMARIES_MODE "GstVideoConverter.primaries-mode"
typedef struct _GstVideoConverter GstVideoConverter;
GstVideoConverter * gst_video_converter_new (GstVideoInfo *in_info,