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qtdemux: Read colorimetry information from colr atom if available

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=772181
This commit is contained in:
Sebastian Dröge 2016-09-30 09:55:58 +03:00
parent 53e436883a
commit ec7f699604
1 changed files with 85 additions and 0 deletions
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85
gst/isomp4/qtdemux.c
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@ -277,6 +277,7 @@ struct _QtDemuxStream
/* Numerator/denominator framerate */
gint fps_n;
gint fps_d;
GstVideoColorimetry colorimetry;
guint16 bits_per_sample;
guint16 color_table_id;
GstMemory *rgb8_palette;
@ -7544,6 +7545,17 @@ gst_qtdemux_configure_stream (GstQTDemux * qtdemux, QtDemuxStream * stream)
GST_TYPE_FRACTION, stream->par_w, stream->par_h, NULL);
}
/* Create incomplete colorimetry here if needed */
if (stream->colorimetry.range ||
stream->colorimetry.matrix ||
stream->colorimetry.transfer || stream->colorimetry.primaries) {
gchar *colorimetry =
gst_video_colorimetry_to_string_full (&stream->colorimetry, TRUE);
gst_caps_set_simple (stream->caps, "colorimetry", G_TYPE_STRING,
colorimetry, NULL);
g_free (colorimetry);
}
if (stream->multiview_mode != GST_VIDEO_MULTIVIEW_MODE_NONE) {
guint par_w = 1, par_h = 1;
@ -9190,6 +9202,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
GNode *wave;
GNode *esds;
GNode *pasp;
GNode *colr;
GNode *tref;
GNode *udta;
GNode *svmi;
@ -9622,6 +9635,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
esds = NULL;
pasp = NULL;
colr = NULL;
/* pick 'the' stsd child */
if (!stream->protected)
mp4v = qtdemux_tree_get_child_by_type (stsd, fourcc);
@ -9631,6 +9645,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
if (mp4v) {
esds = qtdemux_tree_get_child_by_type (mp4v, FOURCC_esds);
pasp = qtdemux_tree_get_child_by_type (mp4v, FOURCC_pasp);
colr = qtdemux_tree_get_child_by_type (mp4v, FOURCC_colr);
}
if (pasp) {
@ -9643,6 +9658,76 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
stream->par_h = 0;
}
if (colr) {
const guint8 *colr_data = (const guint8 *) colr->data;
gint len = QT_UINT32 (colr_data);
if (len == 19 || len == 18) {
guint32 color_type = GST_READ_UINT32_LE (colr_data + 8);
if (color_type == FOURCC_nclx || color_type == FOURCC_nclc) {
guint16 primaries = GST_READ_UINT16_BE (colr_data + 12);
guint16 transfer_function = GST_READ_UINT16_BE (colr_data + 14);
guint16 matrix = GST_READ_UINT16_BE (colr_data + 16);
gboolean full_range = len == 19 ? colr_data[17] >> 7 : FALSE;
switch (primaries) {
case 1:
stream->colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT709;
break;
case 5:
stream->colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT470BG;
break;
case 6:
stream->colorimetry.primaries =
GST_VIDEO_COLOR_PRIMARIES_SMPTE170M;
break;
case 9:
stream->colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT2020;
break;
default:
break;
}
switch (transfer_function) {
case 1:
stream->colorimetry.transfer = GST_VIDEO_TRANSFER_BT709;
break;
case 7:
stream->colorimetry.transfer = GST_VIDEO_TRANSFER_SMPTE240M;
break;
default:
break;
}
switch (matrix) {
case 1:
stream->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT709;
break;
case 6:
stream->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
break;
case 7:
stream->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_SMPTE240M;
break;
case 9:
stream->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT2020;
break;
default:
break;
}
stream->colorimetry.range =
full_range ? GST_VIDEO_COLOR_RANGE_0_255 :
GST_VIDEO_COLOR_RANGE_16_235;
} else {
GST_DEBUG_OBJECT (qtdemux, "Unsupported color type");
}
} else {
GST_WARNING_OBJECT (qtdemux, "Invalid colr atom size");
}
}
if (esds) {
gst_qtdemux_handle_esds (qtdemux, stream, esds, stream->pending_tags);
} else {