| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_MEDIA_DRIVERS_AMLOGIC_DECODER_CODEC_ADAPTER_H264_H_ |
| #define SRC_MEDIA_DRIVERS_AMLOGIC_DECODER_CODEC_ADAPTER_H264_H_ |
| |
| #include <fuchsia/mediacodec/cpp/fidl.h> |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/async-loop/default.h> |
| #include <lib/media/codec_impl/codec_adapter.h> |
| #include <lib/zx/bti.h> |
| |
| #include <fbl/macros.h> |
| |
| #include "amlogic_codec_adapter.h" |
| #include "video_decoder.h" |
| |
| class AmlogicVideo; |
| class DeviceCtx; |
| struct VideoFrame; |
| class CodecAdapterH264 : public AmlogicCodecAdapter { |
| public: |
| explicit CodecAdapterH264(std::mutex& lock, CodecAdapterEvents* codec_adapter_events, |
| DeviceCtx* device); |
| ~CodecAdapterH264(); |
| |
| std::optional<media_metrics::StreamProcessorEvents2MetricDimensionImplementation> |
| CoreCodecMetricsImplementation() override; |
| bool IsCoreCodecRequiringOutputConfigForFormatDetection() override; |
| bool IsCoreCodecMappedBufferUseful(CodecPort port) override; |
| bool IsCoreCodecHwBased(CodecPort port) override; |
| zx::unowned_bti CoreCodecBti() override; |
| void CoreCodecInit(const fuchsia::media::FormatDetails& initial_input_format_details) override; |
| void CoreCodecSetSecureMemoryMode( |
| CodecPort port, fuchsia::mediacodec::SecureMemoryMode secure_memory_mode) override; |
| void CoreCodecStartStream() override; |
| void CoreCodecQueueInputFormatDetails( |
| const fuchsia::media::FormatDetails& per_stream_override_format_details) override; |
| void CoreCodecQueueInputPacket(CodecPacket* packet) override; |
| void CoreCodecQueueInputEndOfStream() override; |
| void CoreCodecStopStream() override; |
| void CoreCodecAddBuffer(CodecPort port, const CodecBuffer* buffer) override; |
| void CoreCodecConfigureBuffers(CodecPort port, |
| const std::vector<std::unique_ptr<CodecPacket>>& packets) override; |
| void CoreCodecRecycleOutputPacket(CodecPacket* packet) override; |
| void CoreCodecEnsureBuffersNotConfigured(CodecPort port) override; |
| std::unique_ptr<const fuchsia::media::StreamOutputConstraints> CoreCodecBuildNewOutputConstraints( |
| uint64_t stream_lifetime_ordinal, uint64_t new_output_buffer_constraints_version_ordinal, |
| bool buffer_constraints_action_required) override; |
| fuchsia::sysmem::BufferCollectionConstraints CoreCodecGetBufferCollectionConstraints( |
| CodecPort port, const fuchsia::media::StreamBufferConstraints& stream_buffer_constraints, |
| const fuchsia::media::StreamBufferPartialSettings& partial_settings) override; |
| void CoreCodecSetBufferCollectionInfo( |
| CodecPort port, |
| const fuchsia::sysmem::BufferCollectionInfo_2& buffer_collection_info) override; |
| fuchsia::media::StreamOutputFormat CoreCodecGetOutputFormat( |
| uint64_t stream_lifetime_ordinal, |
| uint64_t new_output_format_details_version_ordinal) override; |
| void CoreCodecMidStreamOutputBufferReConfigPrepare() override; |
| void CoreCodecMidStreamOutputBufferReConfigFinish() override; |
| std::string CoreCodecGetName() override { return "AmlH264"; } |
| |
| // VideoDecoder::Client implementation; |
| void OnError() override; |
| void OnEos() override {} |
| bool IsOutputReady() override { return true; } |
| void OnFrameReady(std::shared_ptr<VideoFrame> frame) override; |
| zx_status_t InitializeFrames(uint32_t min_frame_count, uint32_t max_frame_count, uint32_t width, |
| uint32_t height, uint32_t stride, uint32_t display_width, |
| uint32_t display_height, bool has_sar, uint32_t sar_width, |
| uint32_t sar_height) override; |
| bool IsCurrentOutputBufferCollectionUsable(uint32_t min_frame_count, uint32_t max_frame_count, |
| uint32_t coded_width, uint32_t coded_height, |
| uint32_t stride, uint32_t display_width, |
| uint32_t display_height) override { |
| return true; |
| } |
| |
| private: |
| void PostSerial(async_dispatcher_t* dispatcher, fit::closure to_run); |
| void PostToInputProcessingThread(fit::closure to_run); |
| void QueueInputItem(CodecInputItem input_item); |
| CodecInputItem DequeueInputItem(); |
| void ProcessInput(); |
| bool ParseAndDeliverCodecOobBytes(); |
| // If parsing something whose format depends on is_avcc_, use this method. |
| // |
| // The buffer pointer can be nullptr unless the VMO is a secure VMO. |
| bool ParseVideo(const CodecBuffer* buffer, const uint8_t* data, uint32_t length); |
| // If parsing something that's known to be in AVCC format, such as a bunch of |
| // 0x00 without start codes or emulation prevention bytes, use this method. |
| // |
| // This does not support secure buffers, as this requires a CPU re-pack which at least for now is |
| // only implemented in the REE (rich execution environment), so the re-pack can't happen if the |
| // buffer can't be read by the CPU from the REE. |
| bool ParseVideoAvcc(const uint8_t* data, uint32_t length); |
| // If parsing something that's known to be in AnnexB format, such as the |
| // end-of-stream marker data, use this method. |
| // |
| // The buffer pointer can be nullptr unless the VMO is a secure VMO. |
| bool ParseVideoAnnexB(const CodecBuffer* buffer, const uint8_t* data, uint32_t length); |
| |
| void OnCoreCodecFailStream(fuchsia::media::StreamError error); |
| CodecPacket* GetFreePacket(); |
| |
| bool IsPortSecureRequired(CodecPort port); |
| bool IsPortSecurePermitted(CodecPort port); |
| bool IsPortSecure(CodecPort port); |
| bool IsOutputSecure(); |
| |
| DeviceCtx* device_ = nullptr; |
| AmlogicVideo* video_ = nullptr; |
| |
| fuchsia::mediacodec::SecureMemoryMode secure_memory_mode_[kPortCount] = {}; |
| |
| fuchsia::media::FormatDetails initial_input_format_details_; |
| fuchsia::media::FormatDetails latest_input_format_details_; |
| |
| std::optional<fuchsia::sysmem::SingleBufferSettings> buffer_settings_[kPortCount]; |
| |
| // Currently, AmlogicVideo::ParseVideo() can indirectly block on availability |
| // of output buffers to make space in the ring buffer the parser is outputting |
| // into, so avoid calling ParseVideo() on shared_fidl_thread() since the |
| // shared_fidl_thread() is needed for output buffers to become available. We |
| // use processing_loop_ (aka processing_thread_) to call ParseVideo(). |
| // |
| // Only StreamControl ever adds anything to input_queue_. Only |
| // processing_thread_ ever removes anything from input_queue_, including when |
| // stopping. |
| async::Loop input_processing_loop_; |
| thrd_t input_processing_thread_ = 0; |
| bool is_process_input_queued_ = false; |
| |
| // Skip any further processing in ProcessInput(). |
| bool is_cancelling_input_processing_ = false; |
| |
| std::vector<const CodecBuffer*> all_output_buffers_; |
| std::vector<CodecPacket*> all_output_packets_; |
| std::vector<uint32_t> free_output_packets_; |
| |
| uint32_t min_buffer_count_[kPortCount] = {}; |
| uint32_t max_buffer_count_[kPortCount] = {}; |
| uint32_t width_ = 0; |
| uint32_t height_ = 0; |
| uint32_t min_stride_ = 0; |
| uint32_t display_width_ = 0; |
| uint32_t display_height_ = 0; |
| bool has_sar_ = false; |
| uint32_t sar_width_ = 0; |
| uint32_t sar_height_ = 0; |
| |
| // Output frames get a PTS based on looking up the output frame's input stream |
| // offset via the PtsManager. For that to work we have to feed the input PTSs |
| // into the PtsManager by their input stream offset. This member tracks the |
| // cumulative input stream offset. This is implicitly the same count of bytes |
| // so far that the amlogic firmware will accumulate and stamp on output |
| // frames. This counts all bytes delivered to the amlogic firmware, including |
| // start code bytes. |
| // |
| // The SW keeps a uint64_t for input, but the HW has 28 bits available for |
| // each output frame. PtsManager does bit extension. |
| uint64_t parsed_video_size_ = 0; |
| // If true, the core codec will need the oob_bytes info, if any. The |
| // core codec in this case wants the info in annex B form in-band, not |
| // AVCC/avcC form out-of-band. |
| bool is_input_format_details_pending_ = false; |
| |
| // For any new stream, remains false until proven otherwise. If this is true |
| // we have to add start code emulation prevention bytes, and replace AVCC |
| // nal_length fields (themselves usually 4 bytes long but not always) with |
| // start codes (out-of-place conversion). |
| bool is_avcc_ = false; |
| // This is the length in bytes of the pseudo_nal_length field, which in turn |
| // has the length of a pseudo_nal in bytes. Feel free to suggest a better |
| // name for this field, but I want to strongly emphasize that it's the length |
| // of a length field, not itself directly the length... |
| // |
| // Typically 4 if is_avcc_, but not always. |
| uint32_t pseudo_nal_length_field_bytes_ = 0; |
| |
| bool is_input_end_of_stream_queued_ = false; |
| |
| bool is_stream_failed_ = false; |
| |
| CodecAdapterH264() = delete; |
| DISALLOW_COPY_ASSIGN_AND_MOVE(CodecAdapterH264); |
| }; |
| |
| #endif // SRC_MEDIA_DRIVERS_AMLOGIC_DECODER_CODEC_ADAPTER_H264_H_ |