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h266parse: Parse and attach LCEVC metadata to buffers if present

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Similar to h264parse and h265parse, this patch enhances the element to parse
LCEVC enhancement data from SEI, and attach it to output buffers as GstLcevcMeta.
The 'lcevc' field in the output caps is also set to TRUE or FALSE depending on
whether LCEVC data is present or not.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9365>
This commit is contained in:
Julian Bouzas 2025-07-09 07:50:43 -04:00 committed by Olivier Crête
parent e44bab9fe9
commit 36bb470d1d
2 changed files with 9 additions and 0 deletions
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8
subprojects/gst-plugins-bad/gst/videoparsers/gsth266parse.c
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@ -276,6 +276,7 @@ gst_h266_parse_reset_stream_info (GstH266Parse * h266parse)
h266parse->parsed_colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
h266parse->parsed_colorimetry.transfer = GST_VIDEO_TRANSFER_UNKNOWN;
h266parse->parsed_colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_UNKNOWN;
h266parse->lcevc = FALSE;
h266parse->have_pps = FALSE;
h266parse->have_sps = FALSE;
h266parse->have_vps = FALSE;
@ -2556,6 +2557,11 @@ gst_h266_parse_update_src_caps (GstH266Parse * h266parse, GstCaps * caps)
"Couldn't set content light level to caps");
}
if (h266parse->user_data.lcevc_enhancement_data || h266parse->lcevc)
gst_caps_set_simple (caps, "lcevc", G_TYPE_BOOLEAN, TRUE, NULL);
else
gst_caps_set_simple (caps, "lcevc", G_TYPE_BOOLEAN, FALSE, NULL);
src_caps = gst_pad_get_current_caps (GST_BASE_PARSE_SRC_PAD (h266parse));
if (src_caps) {
@ -3151,6 +3157,7 @@ gst_h266_parse_set_caps (GstBaseParse * parse, GstCaps * caps)
&h266parse->fps_den);
gst_structure_get_fraction (str, "pixel-aspect-ratio",
&h266parse->upstream_par_n, &h266parse->upstream_par_d);
gst_structure_get_boolean (str, "lcevc", &h266parse->lcevc);
/* get upstream format and align from caps */
gst_h266_parse_format_from_caps (h266parse, caps, &format, &align);
@ -3337,6 +3344,7 @@ gst_h266_parse_process_sei_user_data (GstH266Parse * h266parse,
/* only US and UK country codes are currently supported */
switch (rud->country_code) {
case ITU_T_T35_COUNTRY_CODE_UK:
case ITU_T_T35_COUNTRY_CODE_US:
break;
default:

1
subprojects/gst-plugins-bad/gst/videoparsers/gsth266parse.h
View File

@ -66,6 +66,7 @@ struct _GstH266Parse
gint parsed_par_n, parsed_par_d;
gint parsed_fps_n, parsed_fps_d;
GstVideoColorimetry parsed_colorimetry;
gboolean lcevc;
/* current codec_data in output caps, if any */
GstBuffer *codec_data;
/* input codec_data, if any */