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/********************************************************************
* libavio/include/Decoder.h
*
* Copyright (c) 2022 Stephen Rhodes
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*********************************************************************/
#ifndef DECODER_H
#define DECODER_H
#include "Exception.h"
#include "Queue.h"
#include "Frame.h"
#include "Reader.h"
namespace avio
{
class Decoder
{
public:
Decoder(Reader& reader, AVMediaType mediaType, AVHWDeviceType hw_device_type = AV_HWDEVICE_TYPE_NONE);
~Decoder();
int decode(AVPacket* pkt);
void close();
void flush();
int sample_rate() { return dec_ctx->sample_rate; }
int channels() { return dec_ctx->channels; }
int frame_size() { return reader->fmt_ctx->streams[stream_index]->codecpar->frame_size; }
uint64_t channel_layout() { return dec_ctx->channel_layout; }
AVSampleFormat sample_format() { return dec_ctx->sample_fmt; }
int bit_rate() { return dec_ctx->bit_rate; }
int width() { return dec_ctx->width; }
int height() { return dec_ctx->height; }
AVPixelFormat pix_fmt() { return dec_ctx->pix_fmt; }
int64_t nb_frames() { return reader->fmt_ctx->streams[stream_index]->nb_frames; }
int64_t duration() { return reader->fmt_ctx->streams[stream_index]->duration; }
AVRational time_base() { return reader->fmt_ctx->streams[stream_index]->time_base; }
AVMediaType mediaType;
std::string strMediaType;
AVFrame* frame = NULL;
AVFrame* sw_frame = NULL;
AVFrame* cvt_frame = NULL;
AVStream* stream = NULL;
const AVCodec* dec = NULL;
AVCodecContext* dec_ctx = NULL;
AVBufferRef* hw_device_ctx = NULL;
SwsContext* sws_ctx = NULL;
AVHWDeviceType hw_device_type;
int stream_index;
Reader* reader;
bool show_frames = false;
Queue<Frame>* frame_q = nullptr;
Queue<AVPacket*>* pkt_q = nullptr;
std::string frame_q_name;
std::string pkt_q_name;
std::string video_in() const { return std::string(pkt_q_name); }
std::string audio_in() const { return std::string(pkt_q_name); }
std::string video_out() const { return std::string(frame_q_name); }
std::string audio_out() const { return std::string(frame_q_name); }
void set_video_in(const std::string& name) { pkt_q_name = std::string(name); }
void set_audio_in(const std::string& name) { pkt_q_name = std::string(name); }
void set_video_out(const std::string& name) { frame_q_name = std::string(name); }
void set_audio_out(const std::string& name) { frame_q_name = std::string(name); }
ExceptionHandler ex;
};
}
#endif // DECODER_H
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