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h265timestamper: Use gst_h265_parser_parse_decoder_config_record()

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2759>
This commit is contained in:
Seungha Yang 2023-03-01 03:33:24 +09:00 committed by GStreamer Marge Bot
parent b5fb709be7
commit 837d8d1b20
1 changed files with 19 additions and 41 deletions
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60
subprojects/gst-plugins-bad/gst/codectimestamper/gsth265timestamper.c
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@ -139,6 +139,7 @@ gst_h265_timestamper_set_caps (GstCodecTimestamper * timestamper,
const gchar *str;
gboolean found_format = FALSE;
const GValue *codec_data_val;
gboolean ret = TRUE;
self->packetized = FALSE;
self->nal_length_size = 4;
@ -155,70 +156,47 @@ gst_h265_timestamper_set_caps (GstCodecTimestamper * timestamper,
GstBuffer *codec_data = gst_value_get_buffer (codec_data_val);
GstH265Parser *parser = self->parser;
GstMapInfo map;
GstH265NalUnit nalu;
GstH265ParserResult pres;
guint num_nal_arrays;
guint off;
guint num_nals, i, j;
guint8 *data;
gsize size;
GstH265DecoderConfigRecord *config = NULL;
guint i, j;
if (!gst_buffer_map (codec_data, &map, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Unable to map codec-data buffer");
return FALSE;
}
data = map.data;
size = map.size;
/* parse the hvcC data */
if (size < 23) {
GST_WARNING_OBJECT (self, "hvcC too small");
pres = gst_h265_parser_parse_decoder_config_record (parser,
map.data, map.size, &config);
if (pres != GST_H265_PARSER_OK) {
GST_WARNING_OBJECT (self, "Failed to parse hvcC data");
ret = FALSE;
goto unmap;
}
/* wrong hvcC version */
if (data[0] != 0 && data[0] != 1) {
goto unmap;
}
self->nal_length_size = (data[21] & 0x03) + 1;
self->nal_length_size = config->length_size_minus_one + 1;
GST_DEBUG_OBJECT (self, "nal length size %u", self->nal_length_size);
num_nal_arrays = data[22];
off = 23;
for (i = 0; i < config->nalu_array->len; i++) {
GstH265DecoderConfigRecordNalUnitArray *array =
&g_array_index (config->nalu_array,
GstH265DecoderConfigRecordNalUnitArray, i);
for (i = 0; i < num_nal_arrays; i++) {
if (off + 3 >= size) {
GST_WARNING_OBJECT (self, "hvcC too small");
goto unmap;
}
num_nals = GST_READ_UINT16_BE (data + off + 1);
off += 3;
for (j = 0; j < num_nals; j++) {
pres = gst_h265_parser_identify_nalu_hevc (parser,
data, off, size, 2, &nalu);
if (pres != GST_H265_PARSER_OK) {
GST_WARNING_OBJECT (self, "hvcC too small");
goto unmap;
}
gst_h265_timestamper_process_nal (self, &nalu);
off = nalu.offset + nalu.size;
for (j = 0; j < array->nalu->len; j++) {
GstH265NalUnit *nalu = &g_array_index (array->nalu, GstH265NalUnit, j);
gst_h265_timestamper_process_nal (self, nalu);
}
}
/* codec_data would mean packetized format */
if (!found_format)
self->packetized = TRUE;
unmap:
gst_buffer_unmap (codec_data, &map);
gst_h265_decoder_config_record_free (config);
}
return TRUE;
return ret;
}
static void