// Create a whole 'frame' from VP8 (+ alpha) or lossless.
static int SynthesizeFrame(const WebPDemuxer* const dmux,
const Frame* const first_frame,
int fragment_num, WebPIterator* const iter) {
const uint8_t* const mem_buf = dmux->mem_.buf_;
int num_fragments;
size_t payload_size = 0;
const Frame* const fragment =
GetFragment(first_frame, fragment_num, &num_fragments);
const uint8_t* const payload =
GetFramePayload(mem_buf, fragment, &payload_size);
if (payload == NULL) return 0;
assert(first_frame != NULL);
iter->frame_num = first_frame->frame_num_;
iter->num_frames = dmux->num_frames_;
iter->fragment_num = fragment_num;
iter->num_fragments = num_fragments;
iter->x_offset = fragment->x_offset_;
iter->y_offset = fragment->y_offset_;
iter->width = fragment->width_;
iter->height = fragment->height_;
iter->has_alpha = fragment->has_alpha_;
iter->duration = fragment->duration_;
iter->dispose_method = fragment->dispose_method_;
iter->blend_method = fragment->blend_method_;
iter->complete = fragment->complete_;
iter->fragment.bytes = payload;
iter->fragment.size = payload_size;
// TODO(jzern): adjust offsets for 'FRGM's embedded in 'ANMF's
return 1;
}
// Create a whole 'frame' from VP8 (+ alpha) or lossless.
static int SynthesizeFrame(const WebPDemuxer* const dmux,
const Frame* const first_frame,
int tile_num, WebPIterator* const iter) {
const uint8_t* const mem_buf = dmux->mem_.buf_;
int num_tiles;
size_t payload_size = 0;
const Frame* const tile = GetTile(first_frame, tile_num, &num_tiles);
const uint8_t* const payload = GetFramePayload(mem_buf, tile, &payload_size);
if (payload == NULL) return 0;
iter->frame_num_ = first_frame->frame_num_;
iter->num_frames_ = dmux->num_frames_;
iter->tile_num_ = tile_num;
iter->num_tiles_ = num_tiles;
iter->x_offset_ = tile->x_offset_;
iter->y_offset_ = tile->y_offset_;
iter->width_ = tile->width_;
iter->height_ = tile->height_;
iter->duration_ = tile->duration_;
iter->complete_ = tile->complete_;
iter->tile_.bytes_ = payload;
iter->tile_.size_ = payload_size;
// TODO(jzern): adjust offsets for 'TILE's embedded in 'FRM 's
return 1;
}
// Create a whole 'frame' from VP8 (+ alpha) or lossless.
static int SynthesizeFrame(const WebPDemuxer* const dmux,
const Frame* const frame,
WebPIterator* const iter) {
const uint8_t* const mem_buf = dmux->mem_.buf_;
size_t payload_size = 0;
const uint8_t* const payload = GetFramePayload(mem_buf, frame, &payload_size);
if (payload == NULL) return 0;
assert(frame != NULL);
iter->frame_num = frame->frame_num_;
iter->num_frames = dmux->num_frames_;
iter->x_offset = frame->x_offset_;
iter->y_offset = frame->y_offset_;
iter->width = frame->width_;
iter->height = frame->height_;
iter->has_alpha = frame->has_alpha_;
iter->duration = frame->duration_;
iter->dispose_method = frame->dispose_method_;
iter->blend_method = frame->blend_method_;
iter->complete = frame->complete_;
iter->fragment.bytes = payload;
iter->fragment.size = payload_size;
return 1;
}
void FFrameGrabberProtocol::CaptureFrame(const FFrameMetrics& FrameMetrics, const ICaptureProtocolHost& Host)
{
FrameGrabber->CaptureThisFrame(GetFramePayload(FrameMetrics, Host));
}