1 /* 2 * Copyright 2009, Stephan Aßmus <superstippi@gmx.de>. 3 * All rights reserved. Distributed under the terms of the MIT license. 4 */ 5 #ifndef AVCODEC_ENCODER_H 6 #define AVCODEC_ENCODER_H 7 8 9 #include <MediaFormats.h> 10 11 extern "C" { 12 #include "avcodec.h" 13 #include "swscale.h" 14 #include "libavutil/fifo.h" 15 } 16 17 #include "EncoderPlugin.h" 18 19 20 typedef AVCodecID CodecID; 21 22 23 class AVCodecEncoder : public Encoder { 24 public: 25 AVCodecEncoder(uint32 codecID, 26 int bitRateScale); 27 28 virtual ~AVCodecEncoder(); 29 30 virtual status_t AcceptedFormat( 31 const media_format* proposedInputFormat, 32 media_format* _acceptedInputFormat = NULL); 33 34 virtual status_t SetUp(const media_format* inputFormat); 35 36 virtual status_t GetEncodeParameters( 37 encode_parameters* parameters) const; 38 virtual status_t SetEncodeParameters( 39 encode_parameters* parameters); 40 41 virtual status_t Encode(const void* buffer, int64 frameCount, 42 media_encode_info* info); 43 44 // TODO: Turns out we need Flush() after all. We buffer encoded audio 45 // in a FIFO, since the user suggested buffer size may not fit the 46 // codec buffer size. 47 48 private: 49 void _Init(); 50 status_t _Setup(); 51 52 bool _OpenCodecIfNeeded(); 53 54 status_t _EncodeAudio(const void* buffer, 55 int64 frameCount, 56 media_encode_info* info); 57 status_t _EncodeAudio(const uint8* buffer, 58 size_t bufferSize, int64 frameCount, 59 media_encode_info* info); 60 61 status_t _EncodeVideo(const void* buffer, 62 int64 frameCount, 63 media_encode_info* info); 64 status_t _EncodeVideoFrame(AVFrame* frame, 65 AVPacket* pkt, 66 media_encode_info* info); 67 68 private: 69 media_format fInputFormat; 70 encode_parameters fEncodeParameters; 71 int fBitRateScale; 72 73 // FFmpeg related members 74 // TODO: Refactor common base class from AVCodec[De|En]Coder! 75 CodecID fCodecID; 76 const AVCodec* fCodec; 77 AVCodecContext* fCodecContext; 78 79 enum { 80 CODEC_INIT_NEEDED = 0, 81 CODEC_INIT_DONE, 82 CODEC_INIT_FAILED 83 }; 84 uint32 fCodecInitStatus; 85 86 // For video (color space conversion): 87 AVFrame* fFrame; 88 SwsContext* fSwsContext; 89 90 // For encoded audio: 91 AVFifoBuffer* fAudioFifo; 92 93 int64 fFramesWritten; 94 95 uint8* fChunkBuffer; 96 }; 97 98 #endif // AVCODEC_ENCODER_H 99