diff options
Diffstat (limited to 'vp9/encoder')
| -rw-r--r-- | vp9/encoder/vp9_bitstream.c | 51 |
1 files changed, 23 insertions, 28 deletions
diff --git a/vp9/encoder/vp9_bitstream.c b/vp9/encoder/vp9_bitstream.c index 31ec069d0..4814b7df3 100644 --- a/vp9/encoder/vp9_bitstream.c +++ b/vp9/encoder/vp9_bitstream.c @@ -200,45 +200,40 @@ static void write_segment_id(vp9_writer *w, const struct segmentation *seg, } // This function encodes the reference frame -static void encode_ref_frame(VP9_COMP *cpi, vp9_writer *bc) { - VP9_COMMON *const cm = &cpi->common; - MACROBLOCK *const x = &cpi->mb; - MACROBLOCKD *const xd = &x->e_mbd; - MB_MODE_INFO *mi = &xd->mi_8x8[0]->mbmi; - const int segment_id = mi->segment_id; - int seg_ref_active = vp9_segfeature_active(&cm->seg, segment_id, - SEG_LVL_REF_FRAME); +static void write_ref_frames(const VP9_COMP *cpi, vp9_writer *w) { + const VP9_COMMON *const cm = &cpi->common; + const MACROBLOCKD *const xd = &cpi->mb.e_mbd; + const MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi; + const int is_compound = has_second_ref(mbmi); + const int segment_id = mbmi->segment_id; + // If segment level coding of this signal is disabled... // or the segment allows multiple reference frame options - if (!seg_ref_active) { + if (vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) { + assert(!is_compound); + assert(mbmi->ref_frame[0] == + vp9_get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME)); + } else { // does the feature use compound prediction or not // (if not specified at the frame/segment level) if (cm->reference_mode == REFERENCE_MODE_SELECT) { - vp9_write(bc, mi->ref_frame[1] > INTRA_FRAME, - vp9_get_reference_mode_prob(cm, xd)); + vp9_write(w, is_compound, vp9_get_reference_mode_prob(cm, xd)); } else { - assert((mi->ref_frame[1] <= INTRA_FRAME) == - (cm->reference_mode == SINGLE_REFERENCE)); + assert(!is_compound == (cm->reference_mode == SINGLE_REFERENCE)); } - if (mi->ref_frame[1] > INTRA_FRAME) { - vp9_write(bc, mi->ref_frame[0] == GOLDEN_FRAME, + if (is_compound) { + vp9_write(w, mbmi->ref_frame[0] == GOLDEN_FRAME, vp9_get_pred_prob_comp_ref_p(cm, xd)); } else { - vp9_write(bc, mi->ref_frame[0] != LAST_FRAME, - vp9_get_pred_prob_single_ref_p1(cm, xd)); - if (mi->ref_frame[0] != LAST_FRAME) - vp9_write(bc, mi->ref_frame[0] != GOLDEN_FRAME, - vp9_get_pred_prob_single_ref_p2(cm, xd)); + const int bit0 = mbmi->ref_frame[0] != LAST_FRAME; + vp9_write(w, bit0, vp9_get_pred_prob_single_ref_p1(cm, xd)); + if (bit0) { + const int bit1 = mbmi->ref_frame[0] != GOLDEN_FRAME; + vp9_write(w, bit1, vp9_get_pred_prob_single_ref_p2(cm, xd)); + } } - } else { - assert(mi->ref_frame[1] <= INTRA_FRAME); - assert(vp9_get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME) == - mi->ref_frame[0]); } - - // If using the prediction model we have nothing further to do because - // the reference frame is fully coded by the segment. } static void pack_inter_mode_mvs(VP9_COMP *cpi, MODE_INFO *m, vp9_writer *bc) { @@ -304,7 +299,7 @@ static void pack_inter_mode_mvs(VP9_COMP *cpi, MODE_INFO *m, vp9_writer *bc) { write_intra_mode(bc, mi->uv_mode, cm->fc.uv_mode_prob[mode]); } else { vp9_prob *mv_ref_p; - encode_ref_frame(cpi, bc); + write_ref_frames(cpi, bc); mv_ref_p = cm->fc.inter_mode_probs[mi->mode_context[ref0]]; #ifdef ENTROPY_STATS |