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Rewrite of encoder_state_write_bitstream_leaf: handle slice + tiles + wavefronts correctly

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Laurent Fasnacht 2014-05-08 09:56:24 +02:00
parent 27f694e3e8
commit d05f8b52aa
1 changed files with 25 additions and 14 deletions
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39
src/encoder.c
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@ -1154,16 +1154,6 @@ static void encoder_state_encode_leaf(encoder_state * const encoder_state) {
sao_luma->merge_left_flag = sao_luma->merge_left_flag & sao_chroma->merge_left_flag;
sao_luma->merge_up_flag = sao_luma->merge_up_flag & sao_chroma->merge_up_flag;
}
if (encoder_state->type == ENCODER_STATE_TYPE_WAVEFRONT_ROW && i == 1) {
int j;
//Find next encoder (next row)
for (j=0; encoder_state->parent->children[j].encoder_control; ++j) {
if (encoder_state->parent->children[j].wfrow->lcu_offset_y == encoder_state->wfrow->lcu_offset_y + 1) {
context_copy(&encoder_state->parent->children[j], encoder_state);
}
}
}
}
if (encoder->sao_enable) {
@ -1359,17 +1349,38 @@ static void encoder_state_write_bitstream_leaf(encoder_state * const encoder_sta
for (i = 0; i < encoder_state->lcu_order_count; ++i) {
const lcu_order_element * const lcu = &encoder_state->lcu_order[i];
int at_slice_end = lcu_at_slice_end(encoder, lcu->id + encoder_state->tile->lcu_offset_in_ts);
if (encoder->sao_enable) {
encode_sao(encoder_state, lcu->position.x, lcu->position.y, &cur_pic->sao_luma[lcu->position.y * cur_pic->width_in_lcu + lcu->position.x], &cur_pic->sao_chroma[lcu->position.y * cur_pic->width_in_lcu + lcu->position.x]);
}
encode_coding_tree(encoder_state, lcu->position.x << MAX_DEPTH, lcu->position.y << MAX_DEPTH, 0);
cabac_encode_bin_trm(&encoder_state->cabac, ((i == encoder_state->lcu_order_count - 1) && at_slice_end) ? 1 : 0); // end_of_slice_segment_flag
if (i < encoder_state->lcu_order_count - 1) {
//Since we don't handle slice segments, end of slice segment == end of slice
//Always 0 since otherwise it would be split
cabac_encode_bin_trm(&encoder_state->cabac, 0); // end_of_slice_segment_flag
}
if (encoder_state->type == ENCODER_STATE_TYPE_WAVEFRONT_ROW && i == 1) {
int j;
//Find next encoder (next row)
for (j=0; encoder_state->parent->children[j].encoder_control; ++j) {
if (encoder_state->parent->children[j].wfrow->lcu_offset_y == encoder_state->wfrow->lcu_offset_y + 1) {
context_copy(&encoder_state->parent->children[j], encoder_state);
}
}
}
}
if (!lcu_at_slice_end(encoder, encoder_state->tile->lcu_offset_in_ts + cur_pic->width_in_lcu * cur_pic->height_in_lcu - 1)) {
//Last LCU
const lcu_order_element * const lcu = &encoder_state->lcu_order[encoder_state->lcu_order_count - 1];
const int lcu_addr_in_ts = lcu->id + encoder_state->tile->lcu_offset_in_ts;
const int end_of_slice_segment_flag = lcu_at_slice_end(encoder, lcu_addr_in_ts);
cabac_encode_bin_trm(&encoder_state->cabac, end_of_slice_segment_flag); // end_of_slice_segment_flag
if (!end_of_slice_segment_flag) {
assert(lcu_at_tile_end(encoder, lcu_addr_in_ts) || lcu->position.x == (encoder_state->tile->cur_pic->width_in_lcu - 1));
cabac_encode_bin_trm(&encoder_state->cabac, 1); // end_of_sub_stream_one_bit == 1
cabac_flush(&encoder_state->cabac);
} else {