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matroskademux: Add support parsing HDR metadata
Set SMPTE ST 2086 mastering-display-metadata and content-light-level to caps, if any
This commit is contained in:
Seungha Yang
parent
53fedc43ae
commit
61f9a2a415
3 changed files with 175 additions and 1 deletions
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@ -463,6 +463,110 @@ gst_matroska_demux_add_stream_headers_to_caps (GstMatroskaDemux * demux,
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g_value_unset (&buf_val);
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}
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static GstFlowReturn
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gst_matroska_demux_parse_mastering_metadata (GstMatroskaDemux * demux,
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GstEbmlRead * ebml, GstMatroskaTrackVideoContext * video_context)
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{
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GstFlowReturn ret = GST_FLOW_OK;
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GstVideoMasteringDisplayInfo minfo;
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guint32 id;
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gdouble num;
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/* Precision defined by HEVC specification */
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const guint chroma_den = 50000;
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const guint luma_den = 10000;
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gst_video_mastering_display_info_init (&minfo);
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DEBUG_ELEMENT_START (demux, ebml, "MasteringMetadata");
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if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
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goto beach;
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while (ret == GST_FLOW_OK && gst_ebml_read_has_remaining (ebml, 1, TRUE)) {
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if ((ret = gst_ebml_peek_id (ebml, &id)) != GST_FLOW_OK)
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goto beach;
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/* all sub elements have float type */
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if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
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goto beach;
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/* chromaticity should be in [0, 1] range */
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if (id >= GST_MATROSKA_ID_PRIMARYRCHROMATICITYX &&
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id <= GST_MATROSKA_ID_WHITEPOINTCHROMATICITYY) {
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if (num < 0 || num > 1.0) {
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GST_WARNING_OBJECT (demux, "0x%x has invalid value %f", id, num);
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goto beach;
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}
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} else if (id == GST_MATROSKA_ID_LUMINANCEMAX ||
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id == GST_MATROSKA_ID_LUMINANCEMIN) {
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/* Note: webM spec said valid range is [0, 999.9999] but
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* 1000 cd/m^2 is generally used value on HDR. Just check guint range here.
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* See https://www.webmproject.org/docs/container/#LuminanceMax
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*/
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if (num < 0 || num > (gdouble) (G_MAXUINT32 / luma_den)) {
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GST_WARNING_OBJECT (demux, "0x%x has invalid value %f", id, num);
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goto beach;
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}
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}
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switch (id) {
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case GST_MATROSKA_ID_PRIMARYRCHROMATICITYX:
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minfo.Rx_n = (guint) round (num * chroma_den);
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minfo.Rx_d = chroma_den;
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break;
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case GST_MATROSKA_ID_PRIMARYRCHROMATICITYY:
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minfo.Ry_n = (guint) round (num * chroma_den);
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minfo.Ry_d = chroma_den;
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break;
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case GST_MATROSKA_ID_PRIMARYGCHROMATICITYX:
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minfo.Gx_n = (guint) round (num * chroma_den);
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minfo.Gx_d = chroma_den;
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break;
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case GST_MATROSKA_ID_PRIMARYGCHROMATICITYY:
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minfo.Gy_n = (guint) round (num * chroma_den);
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minfo.Gy_d = chroma_den;
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break;
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case GST_MATROSKA_ID_PRIMARYBCHROMATICITYX:
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minfo.Bx_n = (guint) round (num * chroma_den);
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minfo.Bx_d = chroma_den;
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break;
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case GST_MATROSKA_ID_PRIMARYBCHROMATICITYY:
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minfo.By_n = (guint) round (num * chroma_den);
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minfo.By_d = chroma_den;
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break;
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case GST_MATROSKA_ID_WHITEPOINTCHROMATICITYX:
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minfo.Wx_n = (guint) round (num * chroma_den);
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minfo.Wx_d = chroma_den;
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break;
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case GST_MATROSKA_ID_WHITEPOINTCHROMATICITYY:
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minfo.Wy_n = (guint) round (num * chroma_den);
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minfo.Wy_d = chroma_den;
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break;
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case GST_MATROSKA_ID_LUMINANCEMAX:
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minfo.max_luma_n = (guint) round (num * luma_den);
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minfo.max_luma_d = luma_den;
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break;
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case GST_MATROSKA_ID_LUMINANCEMIN:
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minfo.min_luma_n = (guint) round (num * luma_den);
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minfo.min_luma_d = luma_den;
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break;
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default:
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GST_FIXME_OBJECT (demux,
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"Unsupported subelement 0x%x in MasteringMetadata", id);
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ret = gst_ebml_read_skip (ebml);
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break;
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}
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}
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video_context->mastering_display_info = minfo;
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video_context->mastering_display_info_present = TRUE;
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beach:
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DEBUG_ELEMENT_STOP (demux, ebml, "MasteringMetadata", ret);
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return ret;
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}
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static GstFlowReturn
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gst_matroska_demux_parse_colour (GstMatroskaDemux * demux, GstEbmlRead * ebml,
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GstMatroskaTrackVideoContext * video_context)
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@ -631,6 +735,40 @@ gst_matroska_demux_parse_colour (GstMatroskaDemux * demux, GstEbmlRead * ebml,
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break;
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}
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case GST_MATROSKA_ID_MASTERINGMETADATA:{
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if ((ret =
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gst_matroska_demux_parse_mastering_metadata (demux, ebml,
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video_context)) != GST_FLOW_OK)
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goto beach;
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break;
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}
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case GST_MATROSKA_ID_MAXCLL:{
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if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
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goto beach;
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if (num >= G_MAXUINT32) {
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GST_WARNING_OBJECT (demux,
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"Too large maxCLL value %" G_GUINT64_FORMAT, num);
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} else {
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video_context->content_light_level.maxCLL_n = num;
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video_context->content_light_level.maxCLL_d = 1;
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}
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break;
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}
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case GST_MATROSKA_ID_MAXFALL:{
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if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
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goto beach;
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if (num >= G_MAXUINT32) {
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GST_WARNING_OBJECT (demux,
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"Too large maxFALL value %" G_GUINT64_FORMAT, num);
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} else {
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video_context->content_light_level.maxFALL_n = num;
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video_context->content_light_level.maxFALL_d = 1;
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}
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break;
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}
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default:
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GST_FIXME_OBJECT (demux, "Unsupported subelement 0x%x in Colour", id);
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ret = gst_ebml_read_skip (ebml);
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@ -6429,6 +6567,21 @@ gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext *
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g_free (colorimetry);
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}
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if (videocontext->mastering_display_info_present) {
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if (!gst_video_mastering_display_info_add_to_caps
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(&videocontext->mastering_display_info, caps)) {
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GST_WARNING ("couldn't set mastering display info to caps");
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}
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}
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if (videocontext->content_light_level.maxCLL_n &&
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videocontext->content_light_level.maxFALL_n) {
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if (!gst_video_content_light_level_add_to_caps
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(&videocontext->content_light_level, caps)) {
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GST_WARNING ("couldn't set content light level to caps");
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}
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}
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caps = gst_caps_simplify (caps);
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}
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@ -68,7 +68,9 @@ gst_matroska_track_init_video_context (GstMatroskaTrackContext ** p_context)
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video_context->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
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video_context->colorimetry.transfer = GST_VIDEO_TRANSFER_UNKNOWN;
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video_context->colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_UNKNOWN;
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gst_video_mastering_display_info_init
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(&video_context->mastering_display_info);
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gst_video_content_light_level_init (&video_context->content_light_level);
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return TRUE;
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}
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@ -145,6 +145,20 @@
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#define GST_MATROSKA_ID_VIDEORANGE 0x55B9
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#define GST_MATROSKA_ID_VIDEOTRANSFERCHARACTERISTICS 0x55BA
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#define GST_MATROSKA_ID_VIDEOPRIMARIES 0x55BB
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#define GST_MATROSKA_ID_MAXCLL 0x55BC
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#define GST_MATROSKA_ID_MAXFALL 0x55BD
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#define GST_MATROSKA_ID_MASTERINGMETADATA 0x55D0
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/* IDs in the MasteringMetadata */
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#define GST_MATROSKA_ID_PRIMARYRCHROMATICITYX 0x55D1
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#define GST_MATROSKA_ID_PRIMARYRCHROMATICITYY 0x55D2
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#define GST_MATROSKA_ID_PRIMARYGCHROMATICITYX 0x55D3
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#define GST_MATROSKA_ID_PRIMARYGCHROMATICITYY 0x55D4
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#define GST_MATROSKA_ID_PRIMARYBCHROMATICITYX 0x55D5
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#define GST_MATROSKA_ID_PRIMARYBCHROMATICITYY 0x55D6
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#define GST_MATROSKA_ID_WHITEPOINTCHROMATICITYX 0x55D7
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#define GST_MATROSKA_ID_WHITEPOINTCHROMATICITYY 0x55D8
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#define GST_MATROSKA_ID_LUMINANCEMAX 0x55D9
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#define GST_MATROSKA_ID_LUMINANCEMIN 0x55DA
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/* IDs in the TrackAudio master */
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#define GST_MATROSKA_ID_AUDIOSAMPLINGFREQ 0xB5
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@ -627,6 +641,11 @@ typedef struct _GstMatroskaTrackVideoContext {
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GstBuffer *dirac_unit;
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GstVideoColorimetry colorimetry;
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GstVideoMasteringDisplayInfo mastering_display_info;
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gboolean mastering_display_info_present;
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GstVideoContentLightLevel content_light_level;
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} GstMatroskaTrackVideoContext;
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typedef struct _GstMatroskaTrackAudioContext {
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