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Code Issues Releases Activity

libavcodec/hevcdec: implement skip_frame

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
sfan5 2017-12-07 20:40:35 +01:00 committed by Michael Niedermayer
parent cfd52094c0
commit 05c1c79d37
1 changed files with 15 additions and 1 deletions
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16
libavcodec/hevcdec.c
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@ -2905,6 +2905,13 @@ static int decode_nal_unit(HEVCContext *s, const H2645NAL *nal)
if (ret < 0)
return ret;
if (
(s->avctx->skip_frame >= AVDISCARD_BIDIR && s->sh.slice_type == HEVC_SLICE_B) ||
(s->avctx->skip_frame >= AVDISCARD_NONINTRA && s->sh.slice_type != HEVC_SLICE_I) ||
(s->avctx->skip_frame >= AVDISCARD_NONKEY && !IS_IDR(s))) {
break;
}
if (s->sh.first_slice_in_pic_flag) {
if (s->max_ra == INT_MAX) {
if (s->nal_unit_type == HEVC_NAL_CRA_NUT || IS_BLA(s)) {
@ -3028,7 +3035,14 @@ static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
/* decode the NAL units */
for (i = 0; i < s->pkt.nb_nals; i++) {
ret = decode_nal_unit(s, &s->pkt.nals[i]);
H2645NAL *nal = &s->pkt.nals[i];
if (s->avctx->skip_frame >= AVDISCARD_ALL ||
(s->avctx->skip_frame >= AVDISCARD_NONREF
&& ff_hevc_nal_is_nonref(nal->type)))
continue;
ret = decode_nal_unit(s, nal);
if (ret < 0) {
av_log(s->avctx, AV_LOG_WARNING,
"Error parsing NAL unit #%d.\n", i);