92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/*
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*******************************************************************************
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* INCLUDE
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*******************************************************************************
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*/
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#include "AudioDecodeHandler.h"
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#include "Logger.h"
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#include <cstring>
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namespace Video
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{
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namespace LibOPUS
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{
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/*
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*******************************************************************************
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* CLASS DEFINE
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*******************************************************************************
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*/
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AudioDecodeHandler::AudioDecodeHandler(Core::CodecID codecID, Core::AudioComponent::Ptr pPrevious)
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: Core::AudioDecodeHandler(Poco::format("LibOPUS::AudioDecodeHandler(%s)", Core::codecIDToString(codecID)), codecID,
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pPrevious),
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_pDecoder(nullptr), _queue("LibOPUS::AudioDecodeHandler", Core::MediaType::AUDIO, 300)
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{
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int err;
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_pDecoder = opus_decoder_create(pPrevious->getSampleRate(),
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Core::channelLayoutChannels(pPrevious->getChannelLayout()), &err);
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if (err != OPUS_OK)
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throw Poco::InvalidAccessException(
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Poco::format("%s: Create decoder FAIL: %d(%s)", name(), err, std::string(opus_strerror(err))), err);
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}
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AudioDecodeHandler::~AudioDecodeHandler()
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{
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if (_pDecoder)
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{
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opus_decoder_destroy(_pDecoder);
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_pDecoder = nullptr;
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}
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}
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void AudioDecodeHandler::write(Core::Packet::Ptr pPacket)
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{
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const int channels = Core::channelLayoutChannels(previous()->getChannelLayout());
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int n = opus_decode(_pDecoder, pPacket->data(), (opus_int32)pPacket->length(), _pcm, 5760, 0);
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if (n <= 0)
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{
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logger().error("%s: Decode FAIL: %d(%s)", name(), n, std::string(opus_strerror(n)));
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conceal(pPacket);
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return;
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}
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const int bytes = n * channels * (int)sizeof(int16_t);
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Core::Frame::Ptr pFrame = new Core::Frame();
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pFrame->data[0] = new uint8_t[bytes];
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memcpy(pFrame->data[0].get(), _pcm, bytes);
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pFrame->length = bytes;
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pFrame->timestamp = pPacket->pts();
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_queue.enqueue(pFrame, true);
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}
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void AudioDecodeHandler::conceal(Core::Packet::Ptr pPacket)
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{
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const int channels = Core::channelLayoutChannels(previous()->getChannelLayout());
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int n = opus_decode(_pDecoder, NULL, 0, _pcm, 5760, 0);
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if (n <= 0)
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return;
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const int bytes = n * channels * (int)sizeof(int16_t);
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Core::Frame::Ptr pFrame = new Core::Frame();
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pFrame->data[0] = new uint8_t[bytes];
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memcpy(pFrame->data[0].get(), _pcm, bytes);
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pFrame->length = bytes;
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pFrame->timestamp = pPacket->pts();
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_queue.enqueue(pFrame, true);
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}
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Core::Frame::Ptr AudioDecodeHandler::read()
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{
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try
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{
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return _queue.dequeue(0);
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}
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catch (Poco::TimeoutException&)
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{
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return nullptr;
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}
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}
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}
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}
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