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| author | Linjie Fu <linjie.fu@intel.com> | 2023-02-16 13:46:33 +0800 |
|---|---|---|
| committer | Haihao Xiang <haihao.xiang@intel.com> | 2023-02-27 13:42:06 +0800 |
| commit | 09c656d9c4f6fc66f0f2d60c235bb393b979e27f (patch) | |
| tree | ccb4d6b7ff8b99c0b1a8bc9564559fcc6a0c19c7 /libavcodec | |
| parent | fc3837ba85eafaeb5674c3d6b574a79da46d55b2 (diff) | |
| download | ffmpeg-09c656d9c4f6fc66f0f2d60c235bb393b979e27f.tar.gz | |
lavc/hevc: Update reference list for SCC
Screen Content Coding allows non-intra slice in an IRAP frame which can
reference the frame itself, and would mark the current decoded picture
as "used for long-term reference", no matter TwoVersionsOfCurrDecPicFlag(8.1.3),
hence some previous restricts are not suitable any more.
Constructe RefPicListTemp and RefPicList according to 8-8/9/10. Disable
slice decoding for SCC profile to avoid unexpected error in hevc native
decoder and patch welcome.
Signed-off-by: Linjie Fu <linjie.justin.fu@gmail.com>
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/hevc_refs.c | 21 | ||||
| -rw-r--r-- | libavcodec/hevcdec.c | 10 |
2 files changed, 29 insertions, 2 deletions
diff --git a/libavcodec/hevc_refs.c b/libavcodec/hevc_refs.c index 811e8feff8..96153a2459 100644 --- a/libavcodec/hevc_refs.c +++ b/libavcodec/hevc_refs.c @@ -322,7 +322,7 @@ int ff_hevc_slice_rpl(HEVCContext *s) return ret; if (!(s->rps[ST_CURR_BEF].nb_refs + s->rps[ST_CURR_AFT].nb_refs + - s->rps[LT_CURR].nb_refs)) { + s->rps[LT_CURR].nb_refs) && !s->ps.pps->pps_curr_pic_ref_enabled_flag) { av_log(s->avctx, AV_LOG_ERROR, "Zero refs in the frame RPS.\n"); return AVERROR_INVALIDDATA; } @@ -349,6 +349,13 @@ int ff_hevc_slice_rpl(HEVCContext *s) rpl_tmp.nb_refs++; } } + // Construct RefPicList0, RefPicList1 (8-8, 8-10) + if (s->ps.pps->pps_curr_pic_ref_enabled_flag) { + rpl_tmp.list[rpl_tmp.nb_refs] = s->ref->poc; + rpl_tmp.ref[rpl_tmp.nb_refs] = s->ref; + rpl_tmp.isLongTerm[rpl_tmp.nb_refs] = 1; + rpl_tmp.nb_refs++; + } } /* reorder the references if necessary */ @@ -371,6 +378,14 @@ int ff_hevc_slice_rpl(HEVCContext *s) rpl->nb_refs = FFMIN(rpl->nb_refs, sh->nb_refs[list_idx]); } + // 8-9 + if (s->ps.pps->pps_curr_pic_ref_enabled_flag && + !sh->rpl_modification_flag[list_idx] && + rpl_tmp.nb_refs > sh->nb_refs[L0]) { + rpl->list[sh->nb_refs[L0] - 1] = s->ref->poc; + rpl->ref[sh->nb_refs[L0] - 1] = s->ref; + } + if (sh->collocated_list == list_idx && sh->collocated_ref_idx < rpl->nb_refs) s->ref->collocated_ref = rpl->ref[sh->collocated_ref_idx]; @@ -541,5 +556,9 @@ int ff_hevc_frame_nb_refs(const HEVCContext *s) for (i = 0; i < long_rps->nb_refs; i++) ret += !!long_rps->used[i]; } + + if (s->ps.pps->pps_curr_pic_ref_enabled_flag) + ret++; + return ret; } diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c index 52fa627133..121ceb4e75 100644 --- a/libavcodec/hevcdec.c +++ b/libavcodec/hevcdec.c @@ -668,7 +668,8 @@ static int hls_slice_header(HEVCContext *s) sh->slice_type); return AVERROR_INVALIDDATA; } - if (IS_IRAP(s) && sh->slice_type != HEVC_SLICE_I) { + if (IS_IRAP(s) && sh->slice_type != HEVC_SLICE_I && + !s->ps.pps->pps_curr_pic_ref_enabled_flag) { av_log(s->avctx, AV_LOG_ERROR, "Inter slices in an IRAP frame.\n"); return AVERROR_INVALIDDATA; } @@ -3123,6 +3124,13 @@ static int decode_nal_unit(HEVCContext *s, const H2645NAL *nal) if (ret < 0) goto fail; } else { + if (s->avctx->profile == FF_PROFILE_HEVC_SCC) { + av_log(s->avctx, AV_LOG_ERROR, + "SCC profile is not yet implemented in hevc native decoder.\n"); + ret = AVERROR_PATCHWELCOME; + goto fail; + } + if (s->threads_number > 1 && s->sh.num_entry_point_offsets > 0) ctb_addr_ts = hls_slice_data_wpp(s, nal); else |