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Merge "Moving vp9_reader into decode_tiles function."

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This commit is contained in:
Dmitry Kovalev 2013-07-20 22:39:22 -07:00 committed by Gerrit Code Review
commit ad46753378
1 changed files with 18 additions and 19 deletions
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37
vp9/decoder/vp9_decodframe.c
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@ -645,12 +645,11 @@ static void setup_tile_info(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
cm->log2_tile_rows += vp9_rb_read_bit(rb);
}
static void decode_tiles(VP9D_COMP *pbi,
const uint8_t *data, size_t first_partition_size,
vp9_reader *residual_bc) {
static const uint8_t *decode_tiles(VP9D_COMP *pbi, const uint8_t *data) {
vp9_reader residual_bc;
VP9_COMMON *const pc = &pbi->common;
const uint8_t *data_ptr = data + first_partition_size;
const uint8_t *const data_end = pbi->source + pbi->source_sz;
const int aligned_mi_cols = mi_cols_aligned_to_sb(pc->mi_cols);
const int tile_cols = 1 << pc->log2_tile_cols;
@ -670,7 +669,7 @@ static void decode_tiles(VP9D_COMP *pbi,
vp9_reader bc_bak = {0};
// pre-initialize the offsets, we're going to read in inverse order
data_ptr2[0][0] = data_ptr;
data_ptr2[0][0] = data;
for (tile_row = 0; tile_row < tile_rows; tile_row++) {
if (tile_row) {
const int size = read_be32(data_ptr2[tile_row - 1][tile_cols - 1]);
@ -692,13 +691,13 @@ static void decode_tiles(VP9D_COMP *pbi,
vp9_get_tile_col_offsets(pc, tile_col);
setup_token_decoder(pbi, data_ptr2[tile_row][tile_col],
data_end - data_ptr2[tile_row][tile_col],
residual_bc);
decode_tile(pbi, residual_bc);
&residual_bc);
decode_tile(pbi, &residual_bc);
if (tile_row == tile_rows - 1 && tile_col == tile_cols - 1)
bc_bak = *residual_bc;
bc_bak = residual_bc;
}
}
*residual_bc = bc_bak;
residual_bc = bc_bak;
} else {
int has_more;
@ -711,22 +710,24 @@ static void decode_tiles(VP9D_COMP *pbi,
has_more = tile_col < tile_cols - 1 || tile_row < tile_rows - 1;
if (has_more) {
if (!read_is_valid(data_ptr, 4, data_end))
if (!read_is_valid(data, 4, data_end))
vpx_internal_error(&pc->error, VPX_CODEC_CORRUPT_FRAME,
"Truncated packet or corrupt tile length");
size = read_be32(data_ptr);
data_ptr += 4;
size = read_be32(data);
data += 4;
} else {
size = data_end - data_ptr;
size = data_end - data;
}
setup_token_decoder(pbi, data_ptr, size, residual_bc);
decode_tile(pbi, residual_bc);
data_ptr += size;
setup_token_decoder(pbi, data, size, &residual_bc);
decode_tile(pbi, &residual_bc);
data += size;
}
}
}
return vp9_reader_find_end(&residual_bc);
}
static void check_sync_code(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
@ -923,7 +924,6 @@ void vp9_init_dequantizer(VP9_COMMON *cm) {
int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
int i;
vp9_reader residual_bc;
VP9_COMMON *const pc = &pbi->common;
MACROBLOCKD *const xd = &pbi->mb;
@ -985,7 +985,7 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
set_prev_mi(pc);
decode_tiles(pbi, data, first_partition_size, &residual_bc);
*p_data_end = decode_tiles(pbi, data + first_partition_size);
pc->last_width = pc->width;
pc->last_height = pc->height;
@ -1013,6 +1013,5 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
if (pc->refresh_frame_context)
pc->frame_contexts[pc->frame_context_idx] = pc->fc;
*p_data_end = vp9_reader_find_end(&residual_bc);
return 0;
}