out_vorbis.h Source File

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# out_vorbis.h

    00001 /* MuSE - Multiple Streaming Engine
    00002  * Copyright (C) 2000-2002 Denis Rojo aka jaromil <jaromil@dyne.org>
    00003  *
    00004  * This source code is free software; you can redistribute it and/or
    00005  * modify it under the terms of the GNU Public License as published
    00006  * by the Free Software Foundation; either version 2 of the License,
    00007  * or (at your option) any later version.
    00008  *
    00009  * This source code is distributed in the hope that it will be useful,
    00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00012  * Please refer to the GNU Public License for more details.
    00013  *
    00014  * You should have received a copy of the GNU Public License along with
    00015  * this source code; if not, write to:
    00016  * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00017  *
    00018  * "$Id: out_vorbis.h,v 1.2 2004/01/24 17:22:52 jaromil Exp $"
    00019  *
    00020  */
    00021
    00022 #ifndef __OUT_VORBIS_H__
    00023 #define __OUT_VORBIS_H__
    00024
    00025 #include <outchannels.h>
    00026
    00027 #include <config.h>
    00028 #ifdef HAVE_VORBIS
    00029
    00030 extern "C" {
    00031 #include <vorbis/vorbisenc.h>
    00032 }
    00033
    00034 /* safe bounds! */
    00035 #define INBUF OUT_CHUNK*sizeof(float)*8
    00036 #define RSMPBUF INBUF*sizeof(float)*12
    00037
    00038 class OutVorbis : public OutChannel {
    00039  private:
    00040   ogg_stream_state os;
    00041   ogg_page               og;
    00042   ogg_packet             op;
    00043
    00044   vorbis_dsp_state vd;
    00045   vorbis_block     vb;
    00046   vorbis_info      vi;
    00047   vorbis_comment   vc;
    00048
    00049   ogg_packet header_main;
    00050   ogg_packet header_comments;
    00051   ogg_packet header_codebooks;
    00052
    00053   short int header[8192];
    00054   int headersize;
    00055
    00056   /* the audio jumps in three buffers, with the resampling in between
    00057      one step could be saved if the resampling routine would result in a bidimensional array
    00058      or if vorbis library could accept interleaved float.
    00059      to save steps i did my best with the pipe class, which now read in intl|bidi float. */
    00060   float *pcm; /* read from pipe to here */
    00061   float *rsmpled; /* resample from pcm to here */
    00062   float **_intbuf; /* process from resampled to a bidimensional array here */
    00063   int8_t *_pbyte;
    00064
    00065   int out_chunk_len;
    00066   int prepare(float *buf, float **fbuf, int num);
    00067
    00068   SRC_STATE *rsmp_state;
    00069   SRC_DATA rsmp_data;
    00070
    00071  public:
    00072   OutVorbis();
    00073   ~OutVorbis();
    00074   int encode();
    00075   bool init();
    00076   void flush();
    00077
    00078   bool apply_profile();
    00079
    00080
    00081 };
    00082
    00083 #endif
    00084 #endif