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avcodec/cbs_vp9: keep track of reference frames

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-10-30 13:44:55 -03:00
parent edcdf35123
commit ec440339b2
2 changed files with 72 additions and 4 deletions
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16
libavcodec/cbs_vp9.h
View File

@ -181,6 +181,13 @@ typedef struct VP9RawSuperframe {
VP9RawSuperframeIndex index;
} VP9RawSuperframe;
typedef struct VP9ReferenceFrameState {
int frame_width; // RefFrameWidth
int frame_height; // RefFrameHeight
int subsampling_x; // RefSubsamplingX
int subsampling_y; // RefSubsamplingY
int bit_depth; // RefBitDepth
} VP9ReferenceFrameState;
typedef struct CodedBitstreamVP9Context {
// Frame dimensions in 8x8 mode info blocks.
@ -190,6 +197,15 @@ typedef struct CodedBitstreamVP9Context {
uint16_t sb64_cols;
uint16_t sb64_rows;
int frame_width;
int frame_height;
uint8_t subsampling_x;
uint8_t subsampling_y;
int bit_depth;
VP9ReferenceFrameState ref[VP9_NUM_REF_FRAMES];
// Write buffer.
uint8_t *write_buffer;
size_t write_buffer_size;

60
libavcodec/cbs_vp9_syntax_template.c
View File

@ -43,10 +43,14 @@ static int FUNC(frame_sync_code)(CodedBitstreamContext *ctx, RWContext *rw,
static int FUNC(color_config)(CodedBitstreamContext *ctx, RWContext *rw,
VP9RawFrameHeader *current, int profile)
{
CodedBitstreamVP9Context *vp9 = ctx->priv_data;
int err;
if (profile >= 2)
if (profile >= 2) {
f(1, ten_or_twelve_bit);
vp9->bit_depth = current->ten_or_twelve_bit ? 12 : 10;
} else
vp9->bit_depth = 8;
f(3, color_space);
@ -69,6 +73,9 @@ static int FUNC(color_config)(CodedBitstreamContext *ctx, RWContext *rw,
}
}
vp9->subsampling_x = current->subsampling_x;
vp9->subsampling_y = current->subsampling_y;
return 0;
}
@ -81,8 +88,11 @@ static int FUNC(frame_size)(CodedBitstreamContext *ctx, RWContext *rw,
f(16, frame_width_minus_1);
f(16, frame_height_minus_1);
vp9->mi_cols = (current->frame_width_minus_1 + 8) >> 3;
vp9->mi_rows = (current->frame_height_minus_1 + 8) >> 3;
vp9->frame_width = current->frame_width_minus_1 + 1;
vp9->frame_height = current->frame_height_minus_1 + 1;
vp9->mi_cols = (vp9->frame_width + 7) >> 3;
vp9->mi_rows = (vp9->frame_height + 7) >> 3;
vp9->sb64_cols = (vp9->mi_cols + 7) >> 3;
vp9->sb64_rows = (vp9->mi_rows + 7) >> 3;
@ -107,15 +117,33 @@ static int FUNC(render_size)(CodedBitstreamContext *ctx, RWContext *rw,
static int FUNC(frame_size_with_refs)(CodedBitstreamContext *ctx, RWContext *rw,
VP9RawFrameHeader *current)
{
CodedBitstreamVP9Context *vp9 = ctx->priv_data;
int err, i;
for (i = 0; i < VP9_REFS_PER_FRAME; i++) {
fs(1, found_ref[i], 1, i);
if (current->found_ref[i])
if (current->found_ref[i]) {
VP9ReferenceFrameState *ref =
&vp9->ref[current->ref_frame_idx[i]];
vp9->frame_width = ref->frame_width;
vp9->frame_height = ref->frame_height;
vp9->subsampling_x = ref->subsampling_x;
vp9->subsampling_y = ref->subsampling_y;
vp9->bit_depth = ref->bit_depth;
break;
}
}
if (i >= VP9_REFS_PER_FRAME)
CHECK(FUNC(frame_size)(ctx, rw, current));
else {
vp9->mi_cols = (vp9->frame_width + 7) >> 3;
vp9->mi_rows = (vp9->frame_height + 7) >> 3;
vp9->sb64_cols = (vp9->mi_cols + 7) >> 3;
vp9->sb64_rows = (vp9->mi_rows + 7) >> 3;
}
CHECK(FUNC(render_size)(ctx, rw, current));
return 0;
@ -249,6 +277,7 @@ static int FUNC(tile_info)(CodedBitstreamContext *ctx, RWContext *rw,
static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
VP9RawFrameHeader *current)
{
CodedBitstreamVP9Context *vp9 = ctx->priv_data;
int profile, i;
int err;
@ -301,6 +330,10 @@ static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
infer(color_space, 1);
infer(subsampling_x, 1);
infer(subsampling_y, 1);
vp9->bit_depth = 8;
vp9->subsampling_x = current->subsampling_x;
vp9->subsampling_y = current->subsampling_y;
}
f(8, refresh_frame_flags);
@ -339,6 +372,25 @@ static int FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
f(16, header_size_in_bytes);
for (i = 0; i < VP9_NUM_REF_FRAMES; i++) {
if (current->refresh_frame_flags & (1 << i)) {
vp9->ref[i] = (VP9ReferenceFrameState) {
.frame_width = vp9->frame_width,
.frame_height = vp9->frame_height,
.subsampling_x = vp9->subsampling_x,
.subsampling_y = vp9->subsampling_y,
.bit_depth = vp9->bit_depth,
};
}
}
av_log(ctx->log_ctx, AV_LOG_DEBUG, "Frame: size %dx%d "
"subsample %dx%d bit_depth %d tiles %dx%d.\n",
vp9->frame_width, vp9->frame_height,
vp9->subsampling_x, vp9->subsampling_y,
vp9->bit_depth, 1 << current->tile_cols_log2,
1 << current->tile_rows_log2);
return 0;
}