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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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mxfdemux: Simplify caps selection by using a lookup table
This commit is contained in:
Sebastian Dröge
parent
9aa16c2ea5
commit
b6bac882f9
147
gst/mxf/mxfup.c
147
gst/mxf/mxfup.c
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@ -45,6 +45,39 @@
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GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
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#define GST_CAT_DEFAULT mxf_debug
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static const struct
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{
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const gchar *caps;
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guint32 n_pixel_layout;
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guint8 pixel_layout[10];
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} _rgba_mapping_table[] = {
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{
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GST_VIDEO_CAPS_RGB, 3, {
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'R', 8, 'G', 8, 'B', 8}}, {
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GST_VIDEO_CAPS_BGR, 3, {
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'B', 8, 'G', 8, 'R', 8}}, {
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GST_VIDEO_CAPS_YUV ("v308"), 3, {
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'Y', 8, 'U', 8, 'V', 8}}, {
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GST_VIDEO_CAPS_xRGB, 4, {
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'F', 8, 'R', 8, 'G', 8, 'B', 8}}, {
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GST_VIDEO_CAPS_RGBx, 4, {
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'R', 8, 'G', 8, 'B', 8, 'F', 8}}, {
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GST_VIDEO_CAPS_xBGR, 4, {
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'F', 8, 'B', 8, 'G', 8, 'R', 8}}, {
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GST_VIDEO_CAPS_BGRx, 4, {
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'B', 8, 'G', 8, 'R', 8, 'F', 8}}, {
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GST_VIDEO_CAPS_RGBA, 4, {
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'R', 8, 'G', 8, 'B', 8, 'A', 8}}, {
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GST_VIDEO_CAPS_ARGB, 4, {
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'A', 8, 'R', 8, 'G', 8, 'B', 8}}, {
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GST_VIDEO_CAPS_BGRA, 4, {
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'B', 8, 'G', 8, 'R', 8, 'A', 8}}, {
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GST_VIDEO_CAPS_ABGR, 4, {
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'A', 8, 'B', 8, 'G', 8, 'R', 8}}, {
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GST_VIDEO_CAPS_YUV ("AYUV"), 4, {
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'A', 8, 'Y', 8, 'U', 8, 'V', 8}}
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};
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typedef struct
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{
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guint32 image_start_offset;
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@ -118,83 +151,22 @@ mxf_up_rgba_create_caps (MXFMetadataTimelineTrack * track,
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MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
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{
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GstCaps *caps = NULL;
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guint i;
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if (!d->pixel_layout) {
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GST_ERROR ("No pixel layout");
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return NULL;
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}
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if (d->n_pixel_layout == 3) {
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if (d->pixel_layout[0] == 'R' && d->pixel_layout[2] == 'G'
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&& d->pixel_layout[4] == 'B' && d->pixel_layout[1] == 8
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&& d->pixel_layout[3] == 8 && d->pixel_layout[5] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_RGB);
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} else if (d->pixel_layout[0] == 'B' && d->pixel_layout[2] == 'G'
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&& d->pixel_layout[4] == 'R' && d->pixel_layout[1] == 8
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&& d->pixel_layout[3] == 8 && d->pixel_layout[5] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_BGR);
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} else if (d->pixel_layout[0] == 'Y' && d->pixel_layout[2] == 'U'
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&& d->pixel_layout[4] == 'V' && d->pixel_layout[1] == 8
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&& d->pixel_layout[3] == 8 && d->pixel_layout[5] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_YUV ("v308"));
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} else {
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GST_ERROR ("Unsupport 3 component pixel layout");
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return NULL;
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for (i = 0; i < G_N_ELEMENTS (_rgba_mapping_table); i++) {
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if (d->n_pixel_layout != _rgba_mapping_table[i].n_pixel_layout)
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continue;
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if (memcmp (d->pixel_layout, &_rgba_mapping_table[i].pixel_layout,
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_rgba_mapping_table[i].n_pixel_layout * 2) == 0) {
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caps = gst_caps_from_string (_rgba_mapping_table[i].caps);
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break;
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}
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} else if (d->n_pixel_layout == 4) {
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if (d->pixel_layout[0] == 'R' && d->pixel_layout[2] == 'G'
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&& d->pixel_layout[4] == 'B' && d->pixel_layout[6] == 'F'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_RGBx);
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} else if (d->pixel_layout[0] == 'B' && d->pixel_layout[2] == 'G'
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&& d->pixel_layout[4] == 'R' && d->pixel_layout[6] == 'F'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_BGRx);
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} else if (d->pixel_layout[0] == 'F' && d->pixel_layout[2] == 'R'
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&& d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'B'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_xRGB);
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} else if (d->pixel_layout[0] == 'F' && d->pixel_layout[2] == 'B'
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&& d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'R'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_xBGR);
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} else if (d->pixel_layout[0] == 'A' && d->pixel_layout[2] == 'R'
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&& d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'B'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_ARGB);
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} else if (d->pixel_layout[0] == 'A' && d->pixel_layout[2] == 'B'
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&& d->pixel_layout[4] == 'G' && d->pixel_layout[6] == 'R'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_ABGR);
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} else if (d->pixel_layout[0] == 'R' && d->pixel_layout[2] == 'G'
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&& d->pixel_layout[4] == 'B' && d->pixel_layout[6] == 'A'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_RGBA);
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} else if (d->pixel_layout[0] == 'B' && d->pixel_layout[2] == 'G'
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&& d->pixel_layout[4] == 'R' && d->pixel_layout[6] == 'A'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_BGRA);
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} else if (d->pixel_layout[0] == 'A' && d->pixel_layout[2] == 'Y'
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&& d->pixel_layout[4] == 'U' && d->pixel_layout[6] == 'V'
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&& d->pixel_layout[1] == 8 && d->pixel_layout[3] == 8
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&& d->pixel_layout[5] == 8 && d->pixel_layout[7] == 8) {
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caps = gst_caps_from_string (GST_VIDEO_CAPS_YUV ("AYUV"));
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} else {
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GST_ERROR ("Unsupport 4 component pixel layout");
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return NULL;
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}
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} else {
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GST_ERROR ("Pixel layouts with %u components not supported yet",
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d->n_pixel_layout);
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return NULL;
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}
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if (caps) {
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@ -206,6 +178,8 @@ mxf_up_rgba_create_caps (MXFMetadataTimelineTrack * track,
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((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_end_offset;
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*mapping_data = data;
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} else {
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GST_WARNING ("Unsupported pixel layout");
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}
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return caps;
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@ -287,39 +261,6 @@ static const guint8 up_essence_container_ul[] = {
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0x0D, 0x01, 0x03, 0x01, 0x02, 0x05, 0x7F, 0x01
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};
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static const struct
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{
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const gchar *caps;
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guint32 n_pixel_layout;
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guint8 pixel_layout[10];
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} _rgba_mapping_table[] = {
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{
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GST_VIDEO_CAPS_RGB, 3, {
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'R', 8, 'G', 8, 'B', 8}}, {
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GST_VIDEO_CAPS_BGR, 3, {
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'B', 8, 'G', 8, 'R', 8}}, {
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GST_VIDEO_CAPS_YUV ("v308"), 3, {
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'Y', 8, 'U', 8, 'V', 8}}, {
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GST_VIDEO_CAPS_xRGB, 4, {
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'F', 8, 'R', 8, 'G', 8, 'B', 8}}, {
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GST_VIDEO_CAPS_RGBx, 4, {
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'R', 8, 'G', 8, 'B', 8, 'F', 8}}, {
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GST_VIDEO_CAPS_xBGR, 4, {
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'F', 8, 'B', 8, 'G', 8, 'R', 8}}, {
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GST_VIDEO_CAPS_BGRx, 4, {
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'B', 8, 'G', 8, 'R', 8, 'F', 8}}, {
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GST_VIDEO_CAPS_RGBA, 4, {
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'R', 8, 'G', 8, 'B', 8, 'A', 8}}, {
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GST_VIDEO_CAPS_ARGB, 4, {
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'A', 8, 'R', 8, 'G', 8, 'B', 8}}, {
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GST_VIDEO_CAPS_BGRA, 4, {
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'B', 8, 'G', 8, 'R', 8, 'A', 8}}, {
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GST_VIDEO_CAPS_ABGR, 4, {
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'A', 8, 'B', 8, 'G', 8, 'R', 8}}, {
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GST_VIDEO_CAPS_YUV ("AYUV"), 4, {
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'A', 8, 'Y', 8, 'U', 8, 'V', 8}}
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};
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static MXFMetadataFileDescriptor *
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mxf_up_get_rgba_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
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MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
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