MythTV: audiooutputdigitalencoder.h Source File

00001 #ifndef AUDIOOUTPUTREENCODER
00002 #define AUDIOOUTPUTREENCODER
00003 
00004 extern "C" {
00005 #include "libavcodec/avcodec.h"
00006 };
00007 
00008 class AudioOutputDigitalEncoder
00009 {
00010   public:
00011     AudioOutputDigitalEncoder(void);
00012     ~AudioOutputDigitalEncoder();
00013 
00014     bool   Init(CodecID codec_id, int bitrate, int samplerate, int channels);
00015     void   Dispose(void);
00016     size_t Encode(short * buff);
00017 
00018     inline char *GetFrameBuffer(void);
00019     size_t FrameSize(void)  const { return one_frame_bytes; }
00020     char  *GetOutBuff(void) const { return outbuf;          }
00021 
00022   public:
00023     size_t audio_bytes_per_sample;
00024 
00025   private:
00026     AVCodecContext *av_context;
00027     char           *outbuf;
00028     int             outbuf_size;
00029     char           *frame_buffer;
00030     size_t          one_frame_bytes;
00031 };
00032 
00033 inline char *AudioOutputDigitalEncoder::GetFrameBuffer(void)
00034 {
00035     if (!frame_buffer && av_context)
00036         frame_buffer = new char [one_frame_bytes];
00037 
00038     return frame_buffer; 
00039 }
00040 
00041 #endif