On 1/1/2024 11:12 AM, Nuo Mi wrote:
+static int decode_nal_units(VVCContext *s, VVCFrameContext *fc, AVPacket
*avpkt)
+{
+ const CodedBitstreamH266Context *h266 = s->cbc->priv_data;
+ CodedBitstreamFragment *frame = &s->current_frame;
+ int ret = 0;
+ int eos_at_start = 1;
This never changes, yet it's checked below like it does.
+ s->last_eos = s->eos;
+ s->eos = 0;
+
+ ff_cbs_fragment_reset(frame);
+ ret = ff_cbs_read_packet(s->cbc, frame, avpkt);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Failed to read packet.\n");
+ return ret;
+ }
+ /* decode the NAL units */
+ for (int i = 0; i < frame->nb_units; i++) {
+ const H2645NAL *nal = h266->common.read_packet.nals + i;
+ const CodedBitstreamUnit *unit = frame->units + i;
+
+ if (unit->type == VVC_EOB_NUT || unit->type == VVC_EOS_NUT) {
+ if (eos_at_start)
+ s->last_eos = 1;
+ else
+ s->eos = 1;
+ } else {
+ ret = decode_nal_unit(s, fc, nal, unit);
+ if (ret < 0) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Error parsing NAL unit #%d.\n", i);
+ goto fail;
+ }
+ }
+ }
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