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Partial frame support.

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This commit is contained in:
Dr. Chat
2015-08-29 20:57:42 -05:00
parent d8ed66c336
commit 6c83b35003
7 changed files with 518 additions and 330 deletions
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11
src/xenia/apu/xma_context.h
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@@ -167,12 +167,14 @@ class XmaContext {
private:
static int GetSampleRate(int id);
size_t SavePartial(uint8_t* packet, uint32_t frame_offset_bits, size_t frame_size_bits, bool append);
bool ValidFrameOffset(uint8_t* block, size_t size_bytes, size_t frame_offset_bits);
void DecodePackets(XMA_CONTEXT_DATA* data);
uint32_t GetFramePacketNumber(uint8_t* block, size_t size, size_t bit_offset);
int PrepareDecoder(uint8_t* block, size_t size, int sample_rate,
int channels);
bool ConvertFrame(const float** samples, int num_channels, int num_samples,
bool ConvertFrame(const uint8_t** samples, int num_channels, int num_samples,
uint8_t* output_buffer);
int StartPacket(XMA_CONTEXT_DATA* data);
@@ -199,6 +201,13 @@ class XmaContext {
AVPacket* packet_ = nullptr;
WmaProExtraData extra_data_;
bool partial_frame_saved_ = false;
bool partial_frame_size_known_ = false;
size_t partial_frame_total_size_bits_ = 0;
size_t partial_frame_start_offset_bits_ = 0;
size_t partial_frame_offset_bits_ = 0; // blah internal don't use this
std::vector<uint8_t> partial_frame_buffer_;
// If we didn't finish writing a frame to the output buffer, this is the offset.
size_t current_frame_pos_ = 0;
uint32_t last_input_read_pos_ = 0; // Last seen read buffer pos