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video-converter: avoid primaries conversion when asked

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Don't do conversion between primaries when the option is disabled.
Only do some matrix code when needed.
This commit is contained in:
Wim Taymans 2014-11-19 12:53:03 +01:00
parent f6683b8f14
commit 23adc12e02
1 changed files with 39 additions and 33 deletions
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72
gst-libs/gst/video/video-converter.c
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@ -1147,20 +1147,26 @@ chain_convert (GstVideoConverter * convert, GstLineCache * prev)
gboolean same_matrix, same_primaries, same_bits;
MatrixData p1, p2;
color_matrix_set_identity (&convert->convert_matrix);
same_bits = convert->unpack_bits == convert->pack_bits;
same_matrix =
convert->in_info.colorimetry.matrix ==
convert->out_info.colorimetry.matrix;
GST_DEBUG ("matrix %d -> %d", convert->in_info.colorimetry.matrix,
convert->out_info.colorimetry.matrix);
same_bits = convert->unpack_bits == convert->pack_bits;
GST_DEBUG ("bits %d -> %d", convert->unpack_bits, convert->pack_bits);
same_primaries =
convert->in_info.colorimetry.primaries ==
convert->out_info.colorimetry.primaries;
GST_DEBUG ("primaries %d -> %d", convert->in_info.colorimetry.primaries,
convert->out_info.colorimetry.primaries);
if (CHECK_PRIMARIES_NONE (convert)) {
same_primaries = TRUE;
} else {
same_primaries =
convert->in_info.colorimetry.primaries ==
convert->out_info.colorimetry.primaries;
}
GST_DEBUG ("matrix %d -> %d (%d)", convert->in_info.colorimetry.matrix,
convert->out_info.colorimetry.matrix, same_matrix);
GST_DEBUG ("bits %d -> %d (%d)", convert->unpack_bits, convert->pack_bits,
same_bits);
GST_DEBUG ("primaries %d -> %d (%d)", convert->in_info.colorimetry.primaries,
convert->out_info.colorimetry.primaries, same_primaries);
color_matrix_set_identity (&convert->convert_matrix);
if (!same_primaries) {
const GstVideoColorPrimariesInfo *pi;
@ -1195,29 +1201,29 @@ chain_convert (GstVideoConverter * convert, GstLineCache * prev)
convert->in_bits = convert->unpack_bits;
convert->out_bits = convert->pack_bits;
/* no gamma, combine all conversions into 1 */
if (convert->in_bits < convert->out_bits) {
gint scale = 1 << (convert->out_bits - convert->in_bits);
color_matrix_scale_components (&convert->convert_matrix,
1 / (float) scale, 1 / (float) scale, 1 / (float) scale);
}
GST_DEBUG ("to RGB matrix");
compute_matrix_to_RGB (convert, &convert->convert_matrix);
GST_DEBUG ("current matrix");
color_matrix_debug (&convert->convert_matrix);
GST_DEBUG ("to YUV matrix");
compute_matrix_to_YUV (convert, &convert->convert_matrix);
GST_DEBUG ("current matrix");
color_matrix_debug (&convert->convert_matrix);
if (convert->in_bits > convert->out_bits) {
gint scale = 1 << (convert->in_bits - convert->out_bits);
color_matrix_scale_components (&convert->convert_matrix,
(float) scale, (float) scale, (float) scale);
}
convert->current_bits = MAX (convert->in_bits, convert->out_bits);
if (!same_bits || !same_matrix || !same_primaries) {
/* no gamma, combine all conversions into 1 */
if (convert->in_bits < convert->out_bits) {
gint scale = 1 << (convert->out_bits - convert->in_bits);
color_matrix_scale_components (&convert->convert_matrix,
1 / (float) scale, 1 / (float) scale, 1 / (float) scale);
}
GST_DEBUG ("to RGB matrix");
compute_matrix_to_RGB (convert, &convert->convert_matrix);
GST_DEBUG ("current matrix");
color_matrix_debug (&convert->convert_matrix);
GST_DEBUG ("to YUV matrix");
compute_matrix_to_YUV (convert, &convert->convert_matrix);
GST_DEBUG ("current matrix");
color_matrix_debug (&convert->convert_matrix);
if (convert->in_bits > convert->out_bits) {
gint scale = 1 << (convert->in_bits - convert->out_bits);
color_matrix_scale_components (&convert->convert_matrix,
(float) scale, (float) scale, (float) scale);
}
convert->current_bits = MAX (convert->in_bits, convert->out_bits);
do_conversion = TRUE;
if (!same_matrix || !same_primaries)
prepare_matrix (convert, &convert->convert_matrix);