Ejemplo n.º 1
0
/*!
 * \brief Create a new OGG/Vorbis filestream and set it up for writing.
 * \param s File pointer that points to on-disk storage.
 * \param comment Comment that should be embedded in the OGG/Vorbis file.
 * \return A new filestream.
 */
static int ogg_vorbis_rewrite(struct ast_filestream *s,
						 const char *comment)
{
	ogg_packet header;
	ogg_packet header_comm;
	ogg_packet header_code;
	struct vorbis_desc *tmp = (struct vorbis_desc *)s->_private;

	tmp->writing = 1;

	vorbis_info_init(&tmp->vi);

	if (vorbis_encode_init_vbr(&tmp->vi, 1, DEFAULT_SAMPLE_RATE, 0.4)) {
		ast_log(LOG_ERROR, "Unable to initialize Vorbis encoder!\n");
		return -1;
	}

	vorbis_comment_init(&tmp->vc);
	vorbis_comment_add_tag(&tmp->vc, "ENCODER", "Asterisk PBX");
	if (comment)
		vorbis_comment_add_tag(&tmp->vc, "COMMENT", (char *) comment);

	vorbis_analysis_init(&tmp->vd, &tmp->vi);
	vorbis_block_init(&tmp->vd, &tmp->vb);

	ogg_stream_init(&tmp->os, ast_random());

	vorbis_analysis_headerout(&tmp->vd, &tmp->vc, &header, &header_comm,
				  &header_code);
	ogg_stream_packetin(&tmp->os, &header);
	ogg_stream_packetin(&tmp->os, &header_comm);
	ogg_stream_packetin(&tmp->os, &header_code);

	while (!tmp->eos) {
		if (ogg_stream_flush(&tmp->os, &tmp->og) == 0)
			break;
		if (!fwrite(tmp->og.header, 1, tmp->og.header_len, s->f)) {
			ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno));
		}
		if (!fwrite(tmp->og.body, 1, tmp->og.body_len, s->f)) {
			ast_log(LOG_WARNING, "fwrite() failed: %s\n", strerror(errno));
		}
		if (ogg_page_eos(&tmp->og))
			tmp->eos = 1;
	}

	return 0;
}
Ejemplo n.º 2
0
static av_cold int oggvorbis_encode_init(AVCodecContext *avccontext) {
    OggVorbisContext *context = avccontext->priv_data ;
    ogg_packet header, header_comm, header_code;
    uint8_t *p;
    unsigned int offset, len;

    vorbis_info_init(&context->vi) ;
    if(oggvorbis_init_encoder(&context->vi, avccontext) < 0) {
        av_log(avccontext, AV_LOG_ERROR, "oggvorbis_encode_init: init_encoder failed\n") ;
        return -1 ;
    }
    vorbis_analysis_init(&context->vd, &context->vi) ;
    vorbis_block_init(&context->vd, &context->vb) ;

    vorbis_comment_init(&context->vc);
    vorbis_comment_add_tag(&context->vc, "encoder", LIBAVCODEC_IDENT) ;

    vorbis_analysis_headerout(&context->vd, &context->vc, &header,
                                &header_comm, &header_code);

    len = header.bytes + header_comm.bytes +  header_code.bytes;
    avccontext->extradata_size= 64 + len + len/255;
    p = avccontext->extradata= av_mallocz(avccontext->extradata_size);
    p[0] = 2;
    offset = 1;
    offset += av_xiphlacing(&p[offset], header.bytes);
    offset += av_xiphlacing(&p[offset], header_comm.bytes);
    memcpy(&p[offset], header.packet, header.bytes);
    offset += header.bytes;
    memcpy(&p[offset], header_comm.packet, header_comm.bytes);
    offset += header_comm.bytes;
    memcpy(&p[offset], header_code.packet, header_code.bytes);
    offset += header_code.bytes;
    avccontext->extradata_size = offset;
    avccontext->extradata= av_realloc(avccontext->extradata, avccontext->extradata_size);

/*    vorbis_block_clear(&context->vb);
    vorbis_dsp_clear(&context->vd);
    vorbis_info_clear(&context->vi);*/
    vorbis_comment_clear(&context->vc);

    avccontext->frame_size = OGGVORBIS_FRAME_SIZE ;

    avccontext->coded_frame= avcodec_alloc_frame();
    avccontext->coded_frame->key_frame= 1;

    return 0 ;
}
Ejemplo n.º 3
0
void WebMEncoder::initializeAudioEncoder() {
    /* Initialize Vorbis */
    vorbis_info_init(&vi);
    const float QUALITY = 0.4f;
    int ret2=vorbis_encode_init_vbr(&vi,audioChannels,audioSampleRate,QUALITY);
    if(ret2) {
        printf("ERROR: BAD VORBIS INIT\n");
        exit(1);
    }
    /* add a comment */
    vorbis_comment_init(&vc);
    vorbis_comment_add_tag(&vc,"SOURCE","MAME Game Audio");
    /* set up the analysis state and auxiliary encoding storage */
    vorbis_analysis_init(&vd,&vi);
    vorbis_block_init(&vd,&vb);
}
Ejemplo n.º 4
0
static void vorbis_start(stream_processor *stream)
{
    misc_vorbis_info *info;

    stream->type = "vorbis";
    stream->process_page = vorbis_process;
    stream->process_end = vorbis_end;

    stream->data = calloc(1, sizeof(misc_vorbis_info));

    info = stream->data;

    vorbis_comment_init(&info->vc);
    vorbis_info_init(&info->vi);

}
Ejemplo n.º 5
0
static GstStateChangeReturn
vorbis_dec_change_state (GstElement * element, GstStateChange transition)
{
  GstVorbisDec *vd = GST_VORBIS_DEC (element);
  GstStateChangeReturn res;

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      break;
    case GST_STATE_CHANGE_READY_TO_PAUSED:
      vorbis_info_init (&vd->vi);
      vorbis_comment_init (&vd->vc);
      vd->initialized = FALSE;
      gst_vorbis_dec_reset (vd);
      break;
    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
      break;
    default:
      break;
  }

  res = parent_class->change_state (element, transition);

  switch (transition) {
    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
      break;
    case GST_STATE_CHANGE_PAUSED_TO_READY:
      GST_DEBUG_OBJECT (vd, "PAUSED -> READY, clearing vorbis structures");
      vd->initialized = FALSE;

#ifndef USE_TREMOLO
      vorbis_block_clear (&vd->vb);
#endif

      vorbis_dsp_clear (&vd->vd);
      vorbis_comment_clear (&vd->vc);
      vorbis_info_clear (&vd->vi);
      gst_vorbis_dec_reset (vd);
      break;
    case GST_STATE_CHANGE_READY_TO_NULL:
      break;
    default:
      break;
  }

  return res;
}
Ejemplo n.º 6
0
bool startRecording(const char *outputFile)
{
	assert(hasRecordingThread==0);

	//initialize output file
	RecordingParams *rp=(RecordingParams*)malloc(sizeof(RecordingParams));
	rp->outputFile=fopen(outputFile, "wb");
	if (rp->outputFile==NULL) {
		free(rp);
		return false;
	}

	//initialize vorbis encoder
	vorbis_info_init(&rp->vi);
	vorbis_encode_init_vbr(&rp->vi, RecordingNoOfChannels, DefaultSampleRate, .5);
	vorbis_comment_init(&rp->vc);
	vorbis_comment_add_tag(&rp->vc,(char*)"ENCODER",(char*)"QGis-mapper ogg encoder");
	vorbis_analysis_init(&rp->vd, &rp->vi);
	vorbis_block_init(&rp->vd, &rp->vb);

	//initialize ogg output stream
	srand(time(NULL));
	ogg_stream_init(&rp->os,rand());
	{
		ogg_packet header;
		ogg_packet header_comm;
		ogg_packet header_code;
		
		vorbis_analysis_headerout(&rp->vd,&rp->vc,&header,&header_comm,&header_code);
		ogg_stream_packetin(&rp->os,&header);
		ogg_stream_packetin(&rp->os,&header_comm);
		ogg_stream_packetin(&rp->os,&header_code);
		
		ogg_flushall(rp);
	}

	//initialize audio buffer
	pthread_spin_lock(&recBufferLock);
	recBuffer=sb_createBuffer();
	pthread_spin_unlock(&recBufferLock);
	
	threadRunStop=0;
	pthread_create(&recordingThread, NULL, recordingThreadFct, rp);
	hasRecordingThread=true;

	return true;
}
Ejemplo n.º 7
0
MyVorbisExtractor::MyVorbisExtractor(const sp<DataSource> &source)
    : mSource(source),
      mOffset(0),
      mPrevGranulePosition(0),
      mCurrentPageSize(0),
      mFirstPacketInPage(true),
      mCurrentPageSamples(0),
      mNextLaceIndex(0),
      mFirstDataOffset(-1) {
    mCurrentPage.mNumSegments = 0;
#ifdef MTK_AOSP_ENHANCEMENT
    mTocStarted = false;
    mTocDone = false;
    mFileSize = 0;
#endif
    vorbis_info_init(&mVi);
    vorbis_comment_init(&mVc);
}
Ejemplo n.º 8
0
RefPtr<MediaDataDecoder::InitPromise>
VorbisDataDecoder::Init()
{
  vorbis_info_init(&mVorbisInfo);
  vorbis_comment_init(&mVorbisComment);
  PodZero(&mVorbisDsp);
  PodZero(&mVorbisBlock);

  AutoTArray<unsigned char*,4> headers;
  AutoTArray<size_t,4> headerLens;
  if (!XiphExtradataToHeaders(headers, headerLens,
                              mInfo.mCodecSpecificConfig->Elements(),
                              mInfo.mCodecSpecificConfig->Length())) {
    return InitPromise::CreateAndReject(DecoderFailureReason::INIT_ERROR, __func__);
  }
  for (size_t i = 0; i < headers.Length(); i++) {
    if (NS_FAILED(DecodeHeader(headers[i], headerLens[i]))) {
      return InitPromise::CreateAndReject(DecoderFailureReason::INIT_ERROR, __func__);
    }
  }

  MOZ_ASSERT(mPacketCount == 3);

  int r = vorbis_synthesis_init(&mVorbisDsp, &mVorbisInfo);
  if (r) {
    return InitPromise::CreateAndReject(DecoderFailureReason::INIT_ERROR, __func__);
  }

  r = vorbis_block_init(&mVorbisDsp, &mVorbisBlock);
  if (r) {
    return InitPromise::CreateAndReject(DecoderFailureReason::INIT_ERROR, __func__);
  }

  if (mInfo.mRate != (uint32_t)mVorbisDsp.vi->rate) {
    LOG(LogLevel::Warning,
        ("Invalid Vorbis header: container and codec rate do not match!"));
  }
  if (mInfo.mChannels != (uint32_t)mVorbisDsp.vi->channels) {
    LOG(LogLevel::Warning,
        ("Invalid Vorbis header: container and codec channels do not match!"));
  }

  return InitPromise::CreateAndResolve(TrackInfo::kAudioTrack, __func__);
}
Ejemplo n.º 9
0
		void OggWriter::setupEncoder() {
			vorbis_info * vi = static_cast< vorbis_info * >( std::malloc( sizeof( vorbis_info ) ) );
			this->encoder_.reset( vi, vorbisInfoHelper );
			vorbis_info_init( vi );
			int ret = vorbis_encode_init_vbr( vi, this->getChannels(), this->getSampleRate(), this->quality_ );
			if( ret != 0 ) {
				throw error::CodecError( "Vorbis initialization error" );
			}

			vorbis_dsp_state * vd = static_cast< vorbis_dsp_state * >( std::malloc( sizeof( vorbis_dsp_state ) ) );
			this->dsp_.reset( vd, vorbisDSPHelper );
			vorbis_analysis_init( vd, vi );

			vorbis_block * vb = static_cast< vorbis_block * >( std::malloc( sizeof( vorbis_block ) ) );
			this->block_.reset( vb, vorbisBlockHelper );
			vorbis_block_init( vd, vb );

			this->getSampleBuffer().resize( 1024 * 4 * this->getChannels() );
		}
Ejemplo n.º 10
0
static int vcedit_supported_stream(vcedit_state *state, ogg_page *og) {
	ogg_stream_state os;
	vorbis_info vi;
	vorbis_comment vc;
	ogg_packet header;
	int result = 0;
	
	ogg_stream_init(&os, ogg_page_serialno(og));
	vorbis_info_init(&vi);
	vorbis_comment_init(&vc);
	
	if( !ogg_page_bos(og) )
                result = -1;

	if(result >= 0 && ogg_stream_pagein(&os, og) < 0)
	{
		state->lasterror =
			_("Error reading first page of Ogg bitstream.");
		result = -1;
	}

	if(result >= 0 && ogg_stream_packetout(&os, &header) != 1)
	{
		state->lasterror = _("Error reading initial header packet.");
		result = -1;
	}

	if(result >= 0 && vorbis_synthesis_headerin(&vi, &vc, &header) >= 0)
	{
                result = 1;
	} else {
		/* Not vorbis, may eventually become a chain of checks (Speex,
		 * Theora), but for the moment return 0, bos scan will push
                 * the current page onto the buffer.
		 */
	}

	ogg_stream_clear(&os);
	vorbis_info_clear(&vi);
	vorbis_comment_clear(&vc);
        return result;
}
Ejemplo n.º 11
0
static GstBuffer *
_create_codebook_header_buffer (void)
{
  GstBuffer *buffer;
  ogg_packet header;
  ogg_packet header_comm;
  ogg_packet header_code;

  vorbis_info_init (&vi);
  vorbis_encode_setup_vbr (&vi, 1, 44000, 0.5);
  vorbis_encode_setup_init (&vi);
  vorbis_analysis_init (&vd, &vi);
  vorbis_block_init (&vd, &vb);
  vorbis_comment_init (&vc);
  vorbis_analysis_headerout (&vd, &vc, &header, &header_comm, &header_code);

  buffer = gst_buffer_new_and_alloc (header_code.bytes);
  gst_buffer_fill (buffer, 0, header_code.packet, header_code.bytes);

  return buffer;
}
Ejemplo n.º 12
0
static GF_Err VORB_AttachStream(GF_BaseDecoder *ifcg, u16 ES_ID, char *decSpecInfo, u32 decSpecInfoSize, u16 DependsOnES_ID, u32 objectTypeIndication, Bool UpStream)
{
    ogg_packet oggpacket;
	GF_BitStream *bs;

	VORBISCTX();
	if (ctx->ES_ID) return GF_BAD_PARAM;
	
	if (!decSpecInfo || !decSpecInfoSize) return GF_NON_COMPLIANT_BITSTREAM;
	if (objectTypeIndication != GPAC_OGG_MEDIA_OTI) return GF_NON_COMPLIANT_BITSTREAM;
	if ((decSpecInfoSize<9) || strncmp(&decSpecInfo[3], "vorbis", 6)) return GF_NON_COMPLIANT_BITSTREAM;

	ctx->ES_ID = ES_ID;

    vorbis_info_init(&ctx->vi);
    vorbis_comment_init(&ctx->vc);

	oggpacket.granulepos = -1;
	oggpacket.b_o_s = 1;
	oggpacket.e_o_s = 0;
	oggpacket.packetno = 0;

	bs = gf_bs_new(decSpecInfo, decSpecInfoSize, GF_BITSTREAM_READ);
	while (gf_bs_available(bs)) {
		oggpacket.bytes = gf_bs_read_u16(bs);
		oggpacket.packet = malloc(sizeof(char) * oggpacket.bytes);
		gf_bs_read_data(bs, oggpacket.packet, oggpacket.bytes);
		if (vorbis_synthesis_headerin(&ctx->vi, &ctx->vc, &oggpacket) < 0 ) {
			free(oggpacket.packet);
			gf_bs_del(bs);
			return GF_NON_COMPLIANT_BITSTREAM;
		}
		free(oggpacket.packet);
	}
	vorbis_synthesis_init(&ctx->vd, &ctx->vi);
	vorbis_block_init(&ctx->vd, &ctx->vb); 
	gf_bs_del(bs);

	return GF_OK;
}
Ejemplo n.º 13
0
/*****************************************************************************
 * OpenDecoder: probe the decoder and return score
 *****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
    decoder_t *p_dec = (decoder_t*)p_this;
    decoder_sys_t *p_sys;

    if( p_dec->fmt_in.i_codec != VLC_CODEC_VORBIS )
    {
        return VLC_EGENERIC;
    }

    /* Allocate the memory needed to store the decoder's structure */
    if( ( p_dec->p_sys = p_sys = malloc( sizeof(*p_sys) ) ) == NULL )
        return VLC_ENOMEM;

    /* Misc init */
    date_Set( &p_sys->end_date, 0 );
    p_sys->i_last_block_size = 0;
    p_sys->b_packetizer = false;
    p_sys->i_headers = 0;

    /* Take care of vorbis init */
    vorbis_info_init( &p_sys->vi );
    vorbis_comment_init( &p_sys->vc );

    /* Set output properties */
    p_dec->fmt_out.i_cat = AUDIO_ES;
#ifdef MODULE_NAME_IS_tremor
    p_dec->fmt_out.i_codec = VLC_CODEC_FI32;
#else
    p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
#endif

    /* Set callbacks */
    p_dec->pf_decode_audio = (aout_buffer_t *(*)(decoder_t *, block_t **))
        DecodeBlock;
    p_dec->pf_packetize    = (block_t *(*)(decoder_t *, block_t **))
        DecodeBlock;

    return VLC_SUCCESS;
}
Ejemplo n.º 14
0
static GstStateChangeReturn
vorbis_parse_change_state (GstElement * element, GstStateChange transition)
{
    GstVorbisParse *parse = GST_VORBIS_PARSE (element);
    GstStateChangeReturn ret;

    switch (transition) {
    case GST_STATE_CHANGE_READY_TO_PAUSED:
        vorbis_info_init (&parse->vi);
        vorbis_comment_init (&parse->vc);
        parse->prev_granulepos = -1;
        parse->prev_blocksize = -1;
        parse->packetno = 0;
        parse->streamheader_sent = FALSE;
        parse->buffer_queue = g_queue_new ();
        parse->event_queue = g_queue_new ();
        break;
    default:
        break;
    }

    ret = parent_class->change_state (element, transition);

    switch (transition) {
    case GST_STATE_CHANGE_PAUSED_TO_READY:
        vorbis_info_clear (&parse->vi);
        vorbis_comment_clear (&parse->vc);
        vorbis_parse_clear_queue (parse);
        g_queue_free (parse->buffer_queue);
        parse->buffer_queue = NULL;
        g_queue_free (parse->event_queue);
        parse->event_queue = NULL;
        break;
    default:
        break;
    }

    return ret;
}
Ejemplo n.º 15
0
encoder_instance encoder_create_vbr(int ch, int bitrate, float quality) {
  encoder_instance state = malloc(sizeof(struct encoder_state));
  state->data = NULL;
  state->data_len = 0;
  
  vorbis_info_init(&state->vi);
  
  if (vorbis_encode_init_vbr(&state->vi, ch, bitrate, quality) != 0) {
    free(state);
    return NULL;
  }
  
  vorbis_comment_init(&state->vc);
  vorbis_comment_add_tag(&state->vc, "ENCODER", "libvorbis.js");
  
  vorbis_analysis_init(&state->vd, &state->vi);
  vorbis_block_init(&state->vd, &state->vb);
  
  srand(time(NULL));
  ogg_stream_init(&state->os, rand());
  
  return state;
}
Ejemplo n.º 16
0
Archivo: vorbis.c Proyecto: IAPark/vlc
/*****************************************************************************
 * OpenDecoder: probe the decoder and return score
 *****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
    decoder_t *p_dec = (decoder_t*)p_this;
    decoder_sys_t *p_sys;

    if( p_dec->fmt_in.i_codec != VLC_CODEC_VORBIS )
        return VLC_EGENERIC;

    /* Allocate the memory needed to store the decoder's structure */
    p_dec->p_sys = p_sys = malloc( sizeof(*p_sys) );
    if( unlikely( !p_sys ) )
        return VLC_ENOMEM;

    /* Misc init */
    date_Set( &p_sys->end_date, 0 );
    p_sys->i_last_block_size = 0;
    p_sys->b_packetizer = false;
    p_sys->b_has_headers = false;

    /* Take care of vorbis init */
    vorbis_info_init( &p_sys->vi );
    vorbis_comment_init( &p_sys->vc );

    /* Set output properties */
#ifdef MODULE_NAME_IS_tremor
    p_dec->fmt_out.i_codec = VLC_CODEC_S32N;
#else
    p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
#endif

    /* Set callbacks */
    p_dec->pf_decode     = DecodeAudio;
    p_dec->pf_packetize  = Packetize;
    p_dec->pf_flush      = Flush;

    return VLC_SUCCESS;
}
Ejemplo n.º 17
0
static bool
vorbis_encoder_reinit(struct vorbis_encoder *encoder, GError **error)
{
	vorbis_info_init(&encoder->vi);

	if (encoder->quality >= -1.0) {
		/* a quality was configured (VBR) */

		if (0 != vorbis_encode_init_vbr(&encoder->vi,
						encoder->audio_format.channels,
						encoder->audio_format.sample_rate,
						encoder->quality * 0.1)) {
			g_set_error(error, vorbis_encoder_quark(), 0,
				    "error initializing vorbis vbr");
			vorbis_info_clear(&encoder->vi);
			return false;
		}
	} else {
		/* a bit rate was configured */

		if (0 != vorbis_encode_init(&encoder->vi,
					    encoder->audio_format.channels,
					    encoder->audio_format.sample_rate, -1.0,
					    encoder->bitrate * 1000, -1.0)) {
			g_set_error(error, vorbis_encoder_quark(), 0,
				    "error initializing vorbis encoder");
			vorbis_info_clear(&encoder->vi);
			return false;
		}
	}

	vorbis_analysis_init(&encoder->vd, &encoder->vi);
	vorbis_block_init(&encoder->vd, &encoder->vb);
	ogg_stream_init(&encoder->os, g_random_int());

	return true;
}
Ejemplo n.º 18
0
/* Create an ogg stream and vorbis encoder, with the configuration
 * specified in the encoder_state.
 */
static gboolean
xmms_ices_encoder_create (encoder_state *s, vorbis_comment *vc)
{
	ogg_packet header[3];

	if (s->encoder_inited) {
		XMMS_DBG ("OOPS: xmms_ices_encoder_create called "
		          "with s->encoder_inited == TRUE !");
	}

	XMMS_DBG ("Creating encoder in ABR mode: min/avg/max bitrate %d/%d/%d",
	          s->min_br, s->nom_br, s->max_br);

	/* Create the Vorbis encoder. */
	vorbis_info_init (&s->vi);
	if (vorbis_encode_init (&s->vi, s->channels, s->rate,
	                        s->max_br, s->nom_br, s->min_br) < 0)
		return FALSE;
	vorbis_analysis_init (&s->vd, &s->vi);
	vorbis_block_init (&s->vd, &s->vb);

	/* Initialize the ogg stream and input the vorbis header
	 * packets. */
	ogg_stream_init (&s->os, s->serial++);
	vorbis_analysis_headerout (&s->vd, vc, &header[0], &header[1], &header[2]);
	ogg_stream_packetin (&s->os, &header[0]);
	ogg_stream_packetin (&s->os, &header[1]);
	ogg_stream_packetin (&s->os, &header[2]);

	s->in_header = TRUE;
	s->flushing = FALSE;
	s->samples_in_current_page = 0;
	s->previous_granulepos = 0;
	s->encoder_inited = TRUE;

	return TRUE;
}
Ejemplo n.º 19
0
	StreamEncoder::StreamEncoder()
	{
		//Initialize the info 
		vorbis_info_init(&mVorbisInfo);

		if (ErrorCheck(vorbis_encode_init(&mVorbisInfo, 2, 44100, 100, 80, 60)) == true)
		{
			//Error
			Write("vorbis_encode_init error");
			return;
		}

		if (ErrorCheck(vorbis_analysis_init(&mVorbisDspState, &mVorbisInfo)) == true)
		{
			//Error
			Write("vorbis_analysis_init error");
			return;
		}

		vorbis_comment_init(&mVorbisComment);
		//vorbis_comment_add(&mVorbisComment, "Comments");
		int vahCode = vorbis_analysis_headerout(&mVorbisDspState, &mVorbisComment, &mOggPacketIdentification, &mOggPacketComment, &mOggPacketCodes);
		if (ErrorCheck(vahCode) == true)
		{
			//Error
			Write("vorbis_analysis_init error");
			return;
		}

		if (ErrorCheck(vorbis_block_init(&mVorbisDspState, &mVorbisBlock)) == true)
		{
			//Error
			Write("vorbis_block_init error");
			return;
		}
	}
Ejemplo n.º 20
0
BOOL ovd_reparse_stream(ovd_stream_buf* buf)
{
	ovd_handle* handle = (ovd_handle*)buf->handle;

	if (buf->len) {
		ogg_sync_wrote(handle->oy, buf->len);
		int result = ogg_sync_pageout(handle->oy, &handle->og);
		if (result == 0) {
			buf->len = OVD_STREAM_BUF_LEN;
			return TRUE;
		}
		else if (result < 0)
			return FALSE;
	}

//	ogg_stream_init(&handle->os, ogg_page_serialno(&handle->og));
	handle->os = ogg_stream_create(ogg_page_serialno(&handle->og));
	vorbis_info_init(&handle->vi);
    vorbis_comment_init(&handle->vc);
	if (ogg_stream_pagein(handle->os, &handle->og) < 0)
		return FALSE;

	if (ogg_stream_packetout(handle->os,&handle->op) != 1)
		return FALSE;

	if (vorbis_synthesis_headerin(&handle->vi, &handle->vc, &handle->op) < 0)
		return FALSE;

	handle->init = 0;
	handle->eof = 0;
	ovd_header_init(handle);

	buf->buf = ogg_sync_bufferin(handle->oy, OVD_STREAM_BUF_LEN);
	buf->len = OVD_STREAM_BUF_LEN;
	return TRUE;
}
Ejemplo n.º 21
0
BOOL OggDec::GetWaveformat(WAVEFORMATEX *wfx,char *buf)
{
	char	*buffer;

	if(NULL==wfx)return FALSE;
	if(bWaveGet){
		memcpy(wfx,&wfmt,sizeof(WAVEFORMATEX));
		return TRUE;
	}else if(NULL==buf){
		return FALSE;
	}
	buffer=ogg_sync_buffer(&oy,4096);
	memcpy(buffer,buf,4096);
	ogg_sync_wrote(&oy,4096);
	ogg_sync_pageout(&oy,&og);
	ogg_stream_init(&os,ogg_page_serialno(&og));
	vorbis_info_init(&vi);
	vorbis_comment_init(&vc);
	ogg_stream_pagein(&os,&og);
	ogg_stream_packetout(&os,&op);
	vorbis_synthesis_headerin(&vi,&vc,&op);

	wfx->wFormatTag = WAVE_FORMAT_PCM;
	wfx->nChannels = vi.channels;
	wfx->wBitsPerSample = 16;
	wfx->nSamplesPerSec = vi.rate;
	wfx->nBlockAlign = wfx->nChannels * (wfx->wBitsPerSample/8);
	wfx->nAvgBytesPerSec = wfx->nSamplesPerSec * wfx->nBlockAlign;
	wfx->cbSize = 0;

	ogg_sync_clear(&oy);
	ogg_stream_clear(&os);
	vorbis_comment_clear(&vc);
	vorbis_info_clear(&vi);
	return TRUE;
}
Ejemplo n.º 22
0
int OggInit(CFile *f, OggData *data)
{
	ogg_packet packet;
	int num_vorbis;
#ifdef USE_THEORA
	int num_theora;
#endif
	int stream_start;
	int ret;

	unsigned magic;
	f->read(&magic, sizeof(magic));
	if (SDL_SwapLE32(magic) != 0x5367674F) { // "OggS" in ASCII
		return -1;
	}
	f->seek(0, SEEK_SET);

	ogg_sync_init(&data->sync);

	vorbis_info_init(&data->vinfo);
	vorbis_comment_init(&data->vcomment);

#ifdef USE_THEORA
	theora_info_init(&data->tinfo);
	theora_comment_init(&data->tcomment);
#endif

#ifdef USE_THEORA
	num_theora = 0;
#endif
	num_vorbis = 0;
	stream_start = 0;
	while (!stream_start) {
		ogg_stream_state test;

		if (OggGetNextPage(&data->page, &data->sync, f)) {
			return -1;
		}

		if (!ogg_page_bos(&data->page)) {
			if (num_vorbis) {
				ogg_stream_pagein(&data->astream, &data->page);
			}
#ifdef USE_THEORA
			if (num_theora) {
				ogg_stream_pagein(&data->vstream, &data->page);
			}
#endif
			stream_start = 1;
			break;
		}

		ogg_stream_init(&test, ogg_page_serialno(&data->page));
		ogg_stream_pagein(&test, &data->page);

		// initial codec headers
		while (ogg_stream_packetout(&test, &packet) == 1) {
#ifdef USE_THEORA
			if (theora_decode_header(&data->tinfo, &data->tcomment, &packet) >= 0) {
				memcpy(&data->vstream, &test, sizeof(test));
				++num_theora;
			} else
#endif
			if (!vorbis_synthesis_headerin(&data->vinfo, &data->vcomment, &packet)) {
				memcpy(&data->astream, &test, sizeof(test));
				++num_vorbis;
			} else {
				ogg_stream_clear(&test);
			}
		}
	}

	data->audio = num_vorbis;
#ifdef USE_THEORA
	data->video = num_theora;
#endif

	// remainint codec headers
	while ((num_vorbis && num_vorbis < 3)
#ifdef USE_THEORA
	  || (num_theora && num_theora < 3) ) {
		// are we in the theora page ?
		while (num_theora && num_theora < 3 &&
		  (ret = ogg_stream_packetout(&data->vstream, &packet))) {
			if (ret < 0) {
				return -1;
			}
			if (theora_decode_header(&data->tinfo, &data->tcomment, &packet)) {
				return -1;
			}
			++num_theora;
		}
#else
	  ) {
#endif

		// are we in the vorbis page ?
		while (num_vorbis && num_vorbis < 3 && 
		  (ret = ogg_stream_packetout(&data->astream, &packet))) {
			if (ret < 0) {
				return -1;
			}
			if (vorbis_synthesis_headerin(&data->vinfo, &data->vcomment, &packet)) {
				return -1;
				
			}
			++num_vorbis;
		}

		if (OggGetNextPage(&data->page, &data->sync, f)) {
				break;
		}

		if (num_vorbis) {
			ogg_stream_pagein(&data->astream, &data->page);
		}
#ifdef USE_THEORA
		if (num_theora) {
			ogg_stream_pagein(&data->vstream, &data->page);
		}
#endif
	}

	if (num_vorbis) {
		vorbis_synthesis_init(&data->vdsp, &data->vinfo);
		vorbis_block_init(&data->vdsp, &data->vblock);
	} else {
    	vorbis_info_clear(&data->vinfo);
    	vorbis_comment_clear(&data->vcomment);
	}

#ifdef USE_THEORA
	if (num_theora) {
		theora_decode_init(&data->tstate, &data->tinfo);
		data->tstate.internal_encode = NULL;  // needed for a bug in libtheora (fixed in next release)
	} else {
    	theora_info_clear(&data->tinfo);
    	theora_comment_clear(&data->tcomment);
	}

	return !(num_vorbis || num_theora);
#else
	return !num_vorbis;
#endif
}
Ejemplo n.º 23
0
static gint vorbis_open(void)
{
    ogg_packet header;
    ogg_packet header_comm;
    ogg_packet header_code;

    vorbis_init(NULL);

    vorbis_info_init(&vi);
    vorbis_comment_init(&vc);

    if (tuple)
    {
        gchar tmpstr[32];
        gint scrint;

        add_string_from_tuple (& vc, "title", tuple, FIELD_TITLE);
        add_string_from_tuple (& vc, "artist", tuple, FIELD_ARTIST);
        add_string_from_tuple (& vc, "album", tuple, FIELD_ALBUM);
        add_string_from_tuple (& vc, "genre", tuple, FIELD_GENRE);
        add_string_from_tuple (& vc, "date", tuple, FIELD_DATE);
        add_string_from_tuple (& vc, "comment", tuple, FIELD_COMMENT);

        if ((scrint = tuple_get_int(tuple, FIELD_TRACK_NUMBER, NULL)))
        {
            g_snprintf(tmpstr, sizeof(tmpstr), "%d", scrint);
            vorbis_comment_add_tag(&vc, "tracknumber", tmpstr);
        }

        if ((scrint = tuple_get_int(tuple, FIELD_YEAR, NULL)))
        {
            g_snprintf(tmpstr, sizeof(tmpstr), "%d", scrint);
            vorbis_comment_add_tag(&vc, "year", tmpstr);
        }
    }

    if (vorbis_encode_init_vbr (& vi, input.channels, input.frequency,
     v_base_quality))
    {
        vorbis_info_clear(&vi);
        return 0;
    }

    vorbis_analysis_init(&vd, &vi);
    vorbis_block_init(&vd, &vb);

    srand(time(NULL));
    ogg_stream_init(&os, rand());

    vorbis_analysis_headerout(&vd, &vc, &header, &header_comm, &header_code);

    ogg_stream_packetin(&os, &header);
    ogg_stream_packetin(&os, &header_comm);
    ogg_stream_packetin(&os, &header_code);

    while (ogg_stream_flush (& os, & og))
    {
        write_output(og.header, og.header_len);
        write_output(og.body, og.body_len);
    }

    return 1;
}
Ejemplo n.º 24
0
int input_calculate_ogg_sleep(ogg_page *page)
{
    static ogg_stream_state os;
    ogg_packet op;
    static vorbis_info vi;
    static vorbis_comment vc;
    static input_type codec = ICES_INPUT_UNKNOWN;
    static int need_start_pos, need_headers, state_in_use = 0;
    static int serialno = 0;
    static uint64_t offset;
    static uint64_t first_granulepos;

    if (ogg_page_granulepos(page) == -1)
    {
        LOG_ERROR0("Timing control: corrupt timing information in vorbis file, cannot stream.");
        return -1;
    }
    if (ogg_page_bos (page))
    {
        control.oldsamples = 0;

        if (state_in_use)
            ogg_stream_clear (&os);
        ogg_stream_init (&os, ogg_page_serialno (page));
        serialno = ogg_page_serialno (page);
        state_in_use = 1;
        vorbis_info_init (&vi);
        vorbis_comment_init (&vc);
        need_start_pos = 1;
        need_headers = 3;
        codec = ICES_INPUT_UNKNOWN;
        offset = (uint64_t)0;
    }
    if (need_start_pos)
    {
        int found_first_granulepos = 0;

        ogg_stream_pagein (&os, page);
        while (ogg_stream_packetout (&os, &op) == 1)
        {
            if (need_headers)
            {
                /* check for Vorbis. For Vorbis the Magic is {0x01|0x03|0x05}"vorbis" */
                if (op.bytes > 7 && memcmp(op.packet+1, "vorbis", 6) == 0)
                {
                    if (vorbis_synthesis_headerin (&vi, &vc, &op) < 0)
                    {
                        LOG_ERROR0("Timing control: can't determine sample rate for input, not vorbis.");
                        control.samplerate = 0;
                        vorbis_info_clear (&vi);
                        ogg_stream_clear (&os);
                        return -1;
                    }
                    control.samplerate = vi.rate;
                    codec = ICES_INPUT_VORBIS;
                }
                /* check for Opus. For Opus the magic is "OpusHead" */
                else if (op.bytes == 19 && memcmp(op.packet, "OpusHead", 8) == 0)
                {
                    if (op.packet[8] != 1)
                    {
                        LOG_ERROR0("Timing control: can't determine sample rate for input, unsupported Opus version.");
                        control.samplerate = 0;
                        vorbis_info_clear (&vi);
                        ogg_stream_clear (&os);
                        return -1;
                    }
                    /* Sample rate is fixed for Opus: 48kHz */
                    control.samplerate = 48000;
                    codec = ICES_INPUT_OGG;
                    /* No more headers after this one needed */
                    need_headers = 1;
                }
                else if (op.bytes >= 80 && memcmp(op.packet, "Speex   ", 8) == 0)
                {
                    if (__read_int32_le(op.packet+28) != 1 || __read_int32_le(op.packet+32) != op.bytes)
                    {
                        LOG_ERROR0("Timing control: can't determine sample rate for input, bad or unsupported Speex header.");
                        control.samplerate = 0;
                        vorbis_info_clear (&vi);
                        ogg_stream_clear (&os);
                        return -1;
                    }

                    control.samplerate = __read_int32_le(op.packet+36);
                    codec = ICES_INPUT_OGG;
                    /* No more headers after this one needed */
                    need_headers = 1;
                }
                else if (op.bytes >= 51 && memcmp(op.packet, "\177FLAC\1\0", 7) == 0 && memcmp(op.packet+9, "fLaC\0", 5) == 0)
                {
                    control.samplerate = __read_int20_be(op.packet+27);
                    codec = ICES_INPUT_OGG;
                    /* No more headers after this one needed */
                    need_headers = 1;
                }
                else if (codec == ICES_INPUT_UNKNOWN)
                {
                    LOG_ERROR0("Timing control: can't determine sample rate for input, unsupported input format.");
                    control.samplerate = 0;
                    vorbis_info_clear (&vi);
                    ogg_stream_clear (&os);
                    return -1;
                }
                need_headers--;

                if (need_headers == 0)
                {
                    vorbis_comment_clear (&vc);
                    first_granulepos = (uint64_t)0;
                    return 0;
                }
                continue;
            }
            /* headers have been read */
            if (first_granulepos == 0 && op.granulepos > 0)
            {
                first_granulepos = op.granulepos;
                found_first_granulepos = 1;
            }
            if (codec == ICES_INPUT_VORBIS)
            {
                offset += vorbis_packet_blocksize (&vi, &op) / 4;
            }
        }
        if (!found_first_granulepos)
            return 0;

        need_start_pos = 0;
        control.oldsamples = first_granulepos - offset;
        vorbis_info_clear (&vi);
        ogg_stream_clear (&os);
        state_in_use = 0;
    }
    if (serialno != ogg_page_serialno (page))
    {
        LOG_ERROR0 ("Found page which does not belong to current logical stream");
        return -1;
    }
    control.samples = ogg_page_granulepos (page) - control.oldsamples;
    control.oldsamples = ogg_page_granulepos (page);

    control.senttime += ((uint64_t)control.samples * 1000000 /
            (uint64_t)control.samplerate);

    return 0;
}
Ejemplo n.º 25
0
void VideoStreamPlaybackTheora::set_file(const String &p_file) {

	ERR_FAIL_COND(playing);
	ogg_packet op;
	th_setup_info *ts = NULL;

	file_name = p_file;
	if (file) {
		memdelete(file);
	}
	file = FileAccess::open(p_file, FileAccess::READ);
	ERR_FAIL_COND(!file);

#ifdef THEORA_USE_THREAD_STREAMING
	thread_exit = false;
	thread_eof = false;
	//pre-fill buffer
	int to_read = ring_buffer.space_left();
	int read = file->get_buffer(read_buffer.ptr(), to_read);
	ring_buffer.write(read_buffer.ptr(), read);

	thread = Thread::create(_streaming_thread, this);

#endif

	ogg_sync_init(&oy);

	/* init supporting Vorbis structures needed in header parsing */
	vorbis_info_init(&vi);
	vorbis_comment_init(&vc);

	/* init supporting Theora structures needed in header parsing */
	th_comment_init(&tc);
	th_info_init(&ti);

	theora_eos = false;
	vorbis_eos = false;

	/* Ogg file open; parse the headers */
	/* Only interested in Vorbis/Theora streams */
	int stateflag = 0;

	int audio_track_skip = audio_track;

	while (!stateflag) {
		int ret = buffer_data();
		if (ret == 0) break;
		while (ogg_sync_pageout(&oy, &og) > 0) {
			ogg_stream_state test;

			/* is this a mandated initial header? If not, stop parsing */
			if (!ogg_page_bos(&og)) {
				/* don't leak the page; get it into the appropriate stream */
				queue_page(&og);
				stateflag = 1;
				break;
			}

			ogg_stream_init(&test, ogg_page_serialno(&og));
			ogg_stream_pagein(&test, &og);
			ogg_stream_packetout(&test, &op);

			/* identify the codec: try theora */
			if (!theora_p && th_decode_headerin(&ti, &tc, &ts, &op) >= 0) {
				/* it is theora */
				copymem(&to, &test, sizeof(test));
				theora_p = 1;
			} else if (!vorbis_p && vorbis_synthesis_headerin(&vi, &vc, &op) >= 0) {

				/* it is vorbis */
				if (audio_track_skip) {
					vorbis_info_clear(&vi);
					vorbis_comment_clear(&vc);
					ogg_stream_clear(&test);
					vorbis_info_init(&vi);
					vorbis_comment_init(&vc);

					audio_track_skip--;
				} else {
					copymem(&vo, &test, sizeof(test));
					vorbis_p = 1;
				}
			} else {
				/* whatever it is, we don't care about it */
				ogg_stream_clear(&test);
			}
		}
		/* fall through to non-bos page parsing */
	}

	/* we're expecting more header packets. */
	while ((theora_p && theora_p < 3) || (vorbis_p && vorbis_p < 3)) {
		int ret;

		/* look for further theora headers */
		while (theora_p && (theora_p < 3) && (ret = ogg_stream_packetout(&to, &op))) {
			if (ret < 0) {
				fprintf(stderr, "Error parsing Theora stream headers; "
								"corrupt stream?\n");
				clear();
				return;
			}
			if (!th_decode_headerin(&ti, &tc, &ts, &op)) {
				fprintf(stderr, "Error parsing Theora stream headers; "
								"corrupt stream?\n");
				clear();
				return;
			}
			theora_p++;
		}

		/* look for more vorbis header packets */
		while (vorbis_p && (vorbis_p < 3) && (ret = ogg_stream_packetout(&vo, &op))) {
			if (ret < 0) {
				fprintf(stderr, "Error parsing Vorbis stream headers; corrupt stream?\n");
				clear();
				return;
			}
			ret = vorbis_synthesis_headerin(&vi, &vc, &op);
			if (ret) {
				fprintf(stderr, "Error parsing Vorbis stream headers; corrupt stream?\n");
				clear();
				return;
			}
			vorbis_p++;
			if (vorbis_p == 3) break;
		}

		/* The header pages/packets will arrive before anything else we
		care about, or the stream is not obeying spec */

		if (ogg_sync_pageout(&oy, &og) > 0) {
			queue_page(&og); /* demux into the appropriate stream */
		} else {
			int ret = buffer_data(); /* someone needs more data */
			if (ret == 0) {
				fprintf(stderr, "End of file while searching for codec headers.\n");
				clear();
				return;
			}
		}
	}

	/* and now we have it all.  initialize decoders */
	if (theora_p) {
		td = th_decode_alloc(&ti, ts);
		printf("Ogg logical stream %lx is Theora %dx%d %.02f fps",
				to.serialno, ti.pic_width, ti.pic_height,
				(double)ti.fps_numerator / ti.fps_denominator);
		px_fmt = ti.pixel_fmt;
		switch (ti.pixel_fmt) {
			case TH_PF_420: printf(" 4:2:0 video\n"); break;
			case TH_PF_422: printf(" 4:2:2 video\n"); break;
			case TH_PF_444: printf(" 4:4:4 video\n"); break;
			case TH_PF_RSVD:
			default:
				printf(" video\n  (UNKNOWN Chroma sampling!)\n");
				break;
		}
		if (ti.pic_width != ti.frame_width || ti.pic_height != ti.frame_height)
			printf("  Frame content is %dx%d with offset (%d,%d).\n",
					ti.frame_width, ti.frame_height, ti.pic_x, ti.pic_y);
		th_decode_ctl(td, TH_DECCTL_GET_PPLEVEL_MAX, &pp_level_max,
				sizeof(pp_level_max));
		pp_level = 0;
		th_decode_ctl(td, TH_DECCTL_SET_PPLEVEL, &pp_level, sizeof(pp_level));
		pp_inc = 0;

		int w;
		int h;
		w = (ti.pic_x + ti.frame_width + 1 & ~1) - (ti.pic_x & ~1);
		h = (ti.pic_y + ti.frame_height + 1 & ~1) - (ti.pic_y & ~1);
		size.x = w;
		size.y = h;

		texture->create(w, h, Image::FORMAT_RGBA8, Texture::FLAG_FILTER | Texture::FLAG_VIDEO_SURFACE);

	} else {
		/* tear down the partial theora setup */
		th_info_clear(&ti);
		th_comment_clear(&tc);
	}

	th_setup_free(ts);

	if (vorbis_p) {
		vorbis_synthesis_init(&vd, &vi);
		vorbis_block_init(&vd, &vb);
		fprintf(stderr, "Ogg logical stream %lx is Vorbis %d channel %ld Hz audio.\n",
				vo.serialno, vi.channels, vi.rate);
		//_setup(vi.channels, vi.rate);

	} else {
		/* tear down the partial vorbis setup */
		vorbis_info_clear(&vi);
		vorbis_comment_clear(&vc);
	}

	playing = false;
	buffering = true;
	time = 0;
	audio_frames_wrote = 0;
};
Ejemplo n.º 26
0
int main(){
  ogg_stream_state os; /* take physical pages, weld into a logical
			  stream of packets */
  ogg_page         og; /* one Ogg bitstream page.  Vorbis packets are inside */
  ogg_packet       op; /* one raw packet of data for decode */
  
  vorbis_info      vi; /* struct that stores all the static vorbis bitstream
			  settings */
  vorbis_comment   vc; /* struct that stores all the user comments */

  vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
  vorbis_block     vb; /* local working space for packet->PCM decode */

  int eos=0,ret;
  int i, founddata;

#if defined(macintosh) && defined(__MWERKS__)
  int argc = 0;
  char **argv = NULL;
  argc = ccommand(&argv); /* get a "command line" from the Mac user */
                          /* this also lets the user set stdin and stdout */
#endif

  /* we cheat on the WAV header; we just bypass 44 bytes and never
     verify that it matches 16bit/stereo/44.1kHz.  This is just an
     example, after all. */

#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
  /* if we were reading/writing a file, it would also need to in
     binary mode, eg, fopen("file.wav","wb"); */
  /* Beware the evil ifdef. We avoid these where we can, but this one we 
     cannot. Don't add any more, you'll probably go to hell if you do. */
  _setmode( _fileno( stdin ), _O_BINARY );
  _setmode( _fileno( stdout ), _O_BINARY );
#endif


  /* we cheat on the WAV header; we just bypass the header and never
     verify that it matches 16bit/stereo/44.1kHz.  This is just an
     example, after all. */

  readbuffer[0] = '\0';
  for (i=0, founddata=0; i<30 && ! feof(stdin) && ! ferror(stdin); i++)
  {
    fread(readbuffer,1,2,stdin);

    if ( ! strncmp((char*)readbuffer, "da", 2) )
    {
      founddata = 1;
      fread(readbuffer,1,6,stdin);
      break;
    }
  }

  /********** Encode setup ************/

  vorbis_info_init(&vi);

  /* choose an encoding mode.  A few possibilities commented out, one
     actually used: */

  /*********************************************************************
   Encoding using a VBR quality mode.  The usable range is -.1
   (lowest quality, smallest file) to 1. (highest quality, largest file).
   Example quality mode .4: 44kHz stereo coupled, roughly 128kbps VBR 
  
   ret = vorbis_encode_init_vbr(&vi,2,44100,.4);

   ---------------------------------------------------------------------

   Encoding using an average bitrate mode (ABR).
   example: 44kHz stereo coupled, average 128kbps VBR 
  
   ret = vorbis_encode_init(&vi,2,44100,-1,128000,-1);

   ---------------------------------------------------------------------

   Encode using a quality mode, but select that quality mode by asking for
   an approximate bitrate.  This is not ABR, it is true VBR, but selected
   using the bitrate interface, and then turning bitrate management off:

   ret = ( vorbis_encode_setup_managed(&vi,2,44100,-1,128000,-1) ||
           vorbis_encode_ctl(&vi,OV_ECTL_RATEMANAGE2_SET,NULL) ||
           vorbis_encode_setup_init(&vi));

   *********************************************************************/

  ret=vorbis_encode_init_vbr(&vi,2,44100,0.1);

  /* do not continue if setup failed; this can happen if we ask for a
     mode that libVorbis does not support (eg, too low a bitrate, etc,
     will return 'OV_EIMPL') */

  if(ret)exit(1);

  /* add a comment */
  vorbis_comment_init(&vc);
  vorbis_comment_add_tag(&vc,"ENCODER","encoder_example.c");

  /* set up the analysis state and auxiliary encoding storage */
  vorbis_analysis_init(&vd,&vi);
  vorbis_block_init(&vd,&vb);
  
  /* set up our packet->stream encoder */
  /* pick a random serial number; that way we can more likely build
     chained streams just by concatenation */
  srand(time(NULL));
  ogg_stream_init(&os,rand());

  /* Vorbis streams begin with three headers; the initial header (with
     most of the codec setup parameters) which is mandated by the Ogg
     bitstream spec.  The second header holds any comment fields.  The
     third header holds the bitstream codebook.  We merely need to
     make the headers, then pass them to libvorbis one at a time;
     libvorbis handles the additional Ogg bitstream constraints */

  {
    ogg_packet header;
    ogg_packet header_comm;
    ogg_packet header_code;

    vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
    ogg_stream_packetin(&os,&header); /* automatically placed in its own
					 page */
    ogg_stream_packetin(&os,&header_comm);
    ogg_stream_packetin(&os,&header_code);

	/* This ensures the actual
	 * audio data will start on a new page, as per spec
	 */
	while(!eos){
		int result=ogg_stream_flush(&os,&og);
		if(result==0)break;
		fwrite(og.header,1,og.header_len,stdout);
		fwrite(og.body,1,og.body_len,stdout);
	}

  }
  
  while(!eos){
    long i;
    long bytes=fread(readbuffer,1,READ*4,stdin); /* stereo hardwired here */

    if(bytes==0){
      /* end of file.  this can be done implicitly in the mainline,
         but it's easier to see here in non-clever fashion.
         Tell the library we're at end of stream so that it can handle
         the last frame and mark end of stream in the output properly */
      vorbis_analysis_wrote(&vd,0);

    }else{
      /* data to encode */

      /* expose the buffer to submit data */
      float **buffer=vorbis_analysis_buffer(&vd,READ);
      
      /* uninterleave samples */
      for(i=0;i<bytes/4;i++){
	buffer[0][i]=((readbuffer[i*4+1]<<8)|
		      (0x00ff&(int)readbuffer[i*4]))/32768.f;
	buffer[1][i]=((readbuffer[i*4+3]<<8)|
		      (0x00ff&(int)readbuffer[i*4+2]))/32768.f;
      }
    
      /* tell the library how much we actually submitted */
      vorbis_analysis_wrote(&vd,i);
    }

    /* vorbis does some data preanalysis, then divvies up blocks for
       more involved (potentially parallel) processing.  Get a single
       block for encoding now */
    while(vorbis_analysis_blockout(&vd,&vb)==1){

      /* analysis, assume we want to use bitrate management */
      vorbis_analysis(&vb,NULL);
      vorbis_bitrate_addblock(&vb);

      while(vorbis_bitrate_flushpacket(&vd,&op)){
	
	/* weld the packet into the bitstream */
	ogg_stream_packetin(&os,&op);
	
	/* write out pages (if any) */
	while(!eos){
	  int result=ogg_stream_pageout(&os,&og);
	  if(result==0)break;
	  fwrite(og.header,1,og.header_len,stdout);
	  fwrite(og.body,1,og.body_len,stdout);
	  
	  /* this could be set above, but for illustrative purposes, I do
	     it here (to show that vorbis does know where the stream ends) */
	  
	  if(ogg_page_eos(&og))eos=1;
	}
      }
    }
  }

  /* clean up and exit.  vorbis_info_clear() must be called last */
  
  ogg_stream_clear(&os);
  vorbis_block_clear(&vb);
  vorbis_dsp_clear(&vd);
  vorbis_comment_clear(&vc);
  vorbis_info_clear(&vi);
  
  /* ogg_page and ogg_packet structs always point to storage in
     libvorbis.  They're never freed or manipulated directly */
  
  fprintf(stderr,"Done.\n");
  return(0);
}
Ejemplo n.º 27
0
static int init(sh_audio_t *sh)
{
  unsigned int offset, i, length, hsizes[3];
  void *headers[3];
  unsigned char* extradata;
  ogg_packet op;
  vorbis_comment vc;
  struct ov_struct_st *ov;
#define ERROR() { \
    vorbis_comment_clear(&vc); \
    vorbis_info_clear(&ov->vi); \
    free(ov); \
    return 0; \
  }

  /// Init the decoder with the 3 header packets
  ov = malloc(sizeof(struct ov_struct_st));
  vorbis_info_init(&ov->vi);
  vorbis_comment_init(&vc);

  if(! sh->wf) {
    mp_msg(MSGT_DECAUDIO,MSGL_ERR,"ad_vorbis, extradata seems to be absent! exit\n");
    ERROR();
  }

  if(! sh->wf->cbSize) {
    mp_msg(MSGT_DECAUDIO,MSGL_ERR,"ad_vorbis, extradata seems to be absent!, exit\n");
    ERROR();
  }

  mp_msg(MSGT_DECAUDIO,MSGL_V,"ad_vorbis, extradata seems is %d bytes long\n", sh->wf->cbSize);
  extradata = (char*) (sh->wf+1);

  if(*extradata != 2) {
    mp_msg (MSGT_DEMUX, MSGL_WARN, "ad_vorbis: Vorbis track does not contain valid headers.\n");
    ERROR();
  }

  offset = 1;
  for (i=0; i < 2; i++) {
    length = 0;
    while ((extradata[offset] == (unsigned char) 0xFF) && length < sh->wf->cbSize) {
      length += 255;
      offset++;
    }
    if(offset >= (sh->wf->cbSize - 1)) {
      mp_msg (MSGT_DEMUX, MSGL_WARN, "ad_vorbis: Vorbis track does not contain valid headers.\n");
      ERROR();
    }
    length += extradata[offset];
    offset++;
    mp_msg (MSGT_DEMUX, MSGL_V, "ad_vorbis, offset: %u, length: %u\n", offset, length);
    hsizes[i] = length;
  }

  headers[0] = &extradata[offset];
  headers[1] = &extradata[offset + hsizes[0]];
  headers[2] = &extradata[offset + hsizes[0] + hsizes[1]];
  hsizes[2] = sh->wf->cbSize - offset - hsizes[0] - hsizes[1];
  mp_msg (MSGT_DEMUX, MSGL_V, "ad_vorbis, header sizes: %d %d %d\n", hsizes[0], hsizes[1], hsizes[2]);

  for(i=0; i<3; i++) {
    op.bytes = hsizes[i];
    op.packet = headers[i];
    op.b_o_s  = (i == 0);
    if(vorbis_synthesis_headerin(&ov->vi,&vc,&op) <0) {
      mp_msg(MSGT_DECAUDIO,MSGL_ERR,"OggVorbis: header n. %d broken! len=%ld\n", i, op.bytes);
      ERROR();
    }
    if(i == 2) {
      float rg_gain=0.f, rg_peak=0.f;
    char **ptr=vc.user_comments;
    while(*ptr){
      mp_msg(MSGT_DECAUDIO,MSGL_V,"OggVorbisComment: %s\n",*ptr);
      /* replaygain */
      read_vorbis_comment( *ptr, "replaygain_album_gain=", "%f", &rg_gain );
      read_vorbis_comment( *ptr, "rg_audiophile=", "%f", &rg_gain );
      if( !rg_gain ) {
	read_vorbis_comment( *ptr, "replaygain_track_gain=", "%f", &rg_gain );
	read_vorbis_comment( *ptr, "rg_radio=", "%f", &rg_gain );
      }
      read_vorbis_comment( *ptr, "replaygain_album_peak=", "%f", &rg_peak );
      if( !rg_peak ) {
	read_vorbis_comment( *ptr, "replaygain_track_peak=", "%f", &rg_peak );
	read_vorbis_comment( *ptr, "rg_peak=", "%f", &rg_peak );
      }
      ++ptr;
    }
    /* replaygain: scale */
    if(!rg_gain)
      ov->rg_scale = 1.f; /* just in case pow() isn't standard-conformant */
    else
      ov->rg_scale = pow(10.f, rg_gain/20);
    /* replaygain: anticlip */
    if(ov->rg_scale * rg_peak > 1.f)
      ov->rg_scale = 1.f / rg_peak;
    /* replaygain: security */
    if(ov->rg_scale > 15.)
      ov->rg_scale = 15.;
#ifdef CONFIG_TREMOR
    ov->rg_scale_int = (int)(ov->rg_scale*64.f);
#endif
    mp_msg(MSGT_DECAUDIO,MSGL_V,"OggVorbis: Bitstream is %d channel%s, %dHz, %dbit/s %cBR\n",(int)ov->vi.channels,ov->vi.channels>1?"s":"",(int)ov->vi.rate,(int)ov->vi.bitrate_nominal,
	(ov->vi.bitrate_lower!=ov->vi.bitrate_nominal)||(ov->vi.bitrate_upper!=ov->vi.bitrate_nominal)?'V':'C');
    if(rg_gain || rg_peak)
      mp_msg(MSGT_DECAUDIO,MSGL_V,"OggVorbis: Gain = %+.2f dB, Peak = %.4f, Scale = %.2f\n", rg_gain, rg_peak, ov->rg_scale);
    mp_msg(MSGT_DECAUDIO,MSGL_V,"OggVorbis: Encoded by: %s\n",vc.vendor);
    }
  }

  vorbis_comment_clear(&vc);

//  printf("lower=%d  upper=%d  \n",(int)ov->vi.bitrate_lower,(int)ov->vi.bitrate_upper);

  // Setup the decoder
  sh->channels=ov->vi.channels;
  sh->samplerate=ov->vi.rate;
  sh->samplesize=2;
  // assume 128kbit if bitrate not specified in the header
  sh->i_bps=((ov->vi.bitrate_nominal>0) ? ov->vi.bitrate_nominal : 128000)/8;
  sh->context = ov;

  /// Finish the decoder init
  vorbis_synthesis_init(&ov->vd,&ov->vi);
  vorbis_block_init(&ov->vd,&ov->vb);
  mp_msg(MSGT_DECAUDIO,MSGL_V,"OggVorbis: Init OK!\n");

  return 1;
}
Ejemplo n.º 28
0
 int main(){
  ogg_sync_state   oy; /* sync and verify incoming physical bitstream */
  ogg_stream_state os; /* take physical pages, weld into a logical
                          stream of packets */
  ogg_page         og; /* one Ogg bitstream page. Vorbis packets are inside */
  ogg_packet       op; /* one raw packet of data for decode */

  vorbis_info      vi; /* struct that stores all the static vorbis bitstream
                          settings */
  vorbis_comment   vc; /* struct that stores all the bitstream user comments */
  vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
  vorbis_block     vb; /* local working space for packet->PCM decode */

  char *buffer;
  int  bytes;

  FILE *instream;
  FILE *outstream;
  char *inname = "01.ogg";
  char *outname = "esmith2000-09-28d1t15.raw";

//#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
//  /* Beware the evil ifdef. We avoid these where we can, but this one we
//     cannot. Don't add any more, you'll probably go to hell if you do. */
//  //_setmode( _fileno( stdin ), _O_BINARY );
//  //_setmode( _fileno( stdout ), _O_BINARY );
//#endif

#if defined(macintosh) && defined(__MWERKS__)
  {
    int argc;
    char **argv;
    argc=ccommand(&argv); /* get a "command line" from the Mac user */
                     /* this also lets the user set stdin and stdout */
  }
#endif

  /********** Decode setup ************/

  //opening the file
  
  
  if( fopen_s( &instream, inname, "rb" ) != 0 )
  {
	  fprintf(stderr,"Can not open file %s\n", inname);
      exit(1);
  };
  
  if( fopen_s( &outstream, outname, "wb" ) != 0 )
  {
	  fprintf(stderr,"Can not open file %s\n", outname);
      exit(1);
  }


  ogg_sync_init(&oy); /* Now we can read pages */
  
  while(1){ /* we repeat if the bitstream is chained */
    int eos=0;
    int i;

    /* grab some data at the head of the stream. We want the first page
       (which is guaranteed to be small and only contain the Vorbis
       stream initial header) We need the first page to get the stream
       serialno. */

    /* submit a 4k block to libvorbis' Ogg layer */
    buffer=ogg_sync_buffer(&oy,4096);
    //bytes=fread(buffer,1,4096,stdin);
	bytes=fread(buffer,1,4096,instream);
    ogg_sync_wrote(&oy,bytes);
    
    /* Get the first page. */
    if(ogg_sync_pageout(&oy,&og)!=1){
      /* have we simply run out of data?  If so, we're done. */
      if(bytes<4096)break;
      
      /* error case.  Must not be Vorbis data */
      fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n");
      exit(1);
    }
  
    /* Get the serial number and set up the rest of decode. */
    /* serialno first; use it to set up a logical stream */
    ogg_stream_init(&os,ogg_page_serialno(&og));
    
    /* extract the initial header from the first page and verify that the
       Ogg bitstream is in fact Vorbis data */
    
    /* I handle the initial header first instead of just having the code
       read all three Vorbis headers at once because reading the initial
       header is an easy way to identify a Vorbis bitstream and it's
       useful to see that functionality seperated out. */
    
    vorbis_info_init(&vi);
    vorbis_comment_init(&vc);
    if(ogg_stream_pagein(&os,&og)<0){ 
      /* error; stream version mismatch perhaps */
      fprintf(stderr,"Error reading first page of Ogg bitstream data.\n");
      exit(1);
    }
    
    if(ogg_stream_packetout(&os,&op)!=1){ 
      /* no page? must not be vorbis */
      fprintf(stderr,"Error reading initial header packet.\n");
      exit(1);
    }
    
    if(vorbis_synthesis_headerin(&vi,&vc,&op)<0){ 
      /* error case; not a vorbis header */
      fprintf(stderr,"This Ogg bitstream does not contain Vorbis "
              "audio data.\n");
      exit(1);
    }
    
    /* At this point, we're sure we're Vorbis. We've set up the logical
       (Ogg) bitstream decoder. Get the comment and codebook headers and
       set up the Vorbis decoder */
    
    /* The next two packets in order are the comment and codebook headers.
       They're likely large and may span multiple pages. Thus we read
       and submit data until we get our two packets, watching that no
       pages are missing. If a page is missing, error out; losing a
       header page is the only place where missing data is fatal. */
    
    i=0;
    while(i<2){
      while(i<2){
        int result=ogg_sync_pageout(&oy,&og);
        if(result==0)break; /* Need more data */
        /* Don't complain about missing or corrupt data yet. We'll
           catch it at the packet output phase */
        if(result==1){
          ogg_stream_pagein(&os,&og); /* we can ignore any errors here
                                         as they'll also become apparent
                                         at packetout */
          while(i<2){
            result=ogg_stream_packetout(&os,&op);
            if(result==0)break;
            if(result<0){
              /* Uh oh; data at some point was corrupted or missing!
                 We can't tolerate that in a header.  Die. */
              fprintf(stderr,"Corrupt secondary header.  Exiting.\n");
              exit(1);
            }
            result=vorbis_synthesis_headerin(&vi,&vc,&op);
            if(result<0){
              fprintf(stderr,"Corrupt secondary header.  Exiting.\n");
              exit(1);
            }
            i++;
          }
        }
      }
      /* no harm in not checking before adding more */
      buffer=ogg_sync_buffer(&oy,4096);
      //bytes=fread(buffer,1,4096,stdin);
	  bytes=fread(buffer,1,4096,instream);
      if(bytes==0 && i<2){
        fprintf(stderr,"End of file before finding all Vorbis headers!\n");
        exit(1);
      }
      ogg_sync_wrote(&oy,bytes);
    }
    
    /* Throw the comments plus a few lines about the bitstream we're
       decoding */
    {
      char **ptr=vc.user_comments;
      while(*ptr){
        fprintf(stderr,"%s\n",*ptr);
        ++ptr;
      }
      fprintf(stderr,"\nBitstream is %d channel, %ldHz\n",vi.channels,vi.rate);
      fprintf(stderr,"Encoded by: %s\n\n",vc.vendor);
    }
    
    convsize=4096/vi.channels;

    /* OK, got and parsed all three headers. Initialize the Vorbis
       packet->PCM decoder. */
    if(vorbis_synthesis_init(&vd,&vi)==0){ /* central decode state */
      vorbis_block_init(&vd,&vb);          /* local state for most of the decode
                                              so multiple block decodes can
                                              proceed in parallel. We could init
                                              multiple vorbis_block structures
                                              for vd here */
      
      /* The rest is just a straight decode loop until end of stream */
      while(!eos){
        while(!eos){
          int result=ogg_sync_pageout(&oy,&og);
          if(result==0)break; /* need more data */
          if(result<0){ /* missing or corrupt data at this page position */
            fprintf(stderr,"Corrupt or missing data in bitstream; "
                    "continuing...\n");
          }else{
            ogg_stream_pagein(&os,&og); /* can safely ignore errors at
                                           this point */
            while(1){
              result=ogg_stream_packetout(&os,&op);
              
              if(result==0)break; /* need more data */
              if(result<0){ /* missing or corrupt data at this page position */
                /* no reason to complain; already complained above */
              }else{
                /* we have a packet.  Decode it */
                float **pcm;
                int samples;
                
                if(vorbis_synthesis(&vb,&op)==0) /* test for success! */
                  vorbis_synthesis_blockin(&vd,&vb);
                /* 
                   
                **pcm is a multichannel float vector.  In stereo, for
                example, pcm[0] is left, and pcm[1] is right.  samples is
                the size of each channel.  Convert the float values
                (-1.<=range<=1.) to whatever PCM format and write it out */
                
                while((samples=vorbis_synthesis_pcmout(&vd,&pcm))>0){
                  int j;
                  int clipflag=0;
                  int bout=(samples<convsize?samples:convsize);
                  
                  /* convert floats to 16 bit signed ints (host order) and
                     interleave */
                  for(i=0;i<vi.channels;i++){
                    ogg_int16_t *ptr=convbuffer+i;
                    float  *mono=pcm[i];
                    for(j=0;j<bout;j++){
#if 1
                      int val=floor(mono[j]*32767.f+.5f);
#else /* optional dither */
                      int val=mono[j]*32767.f+drand48()-0.5f;
#endif
                      /* might as well guard against clipping */
                      if(val>32767){
                        val=32767;
                        clipflag=1;
                      }
                      if(val<-32768){
                        val=-32768;
                        clipflag=1;
                      }
                      *ptr=val;
                      ptr+=vi.channels;
                    }
                  }
                  
                  if(clipflag)
                    fprintf(stderr,"Clipping in frame %ld\n",(long)(vd.sequence));
                  
                  
                  //fwrite(convbuffer,2*vi.channels,bout,stdout);
				  fwrite(convbuffer,2*vi.channels,bout,outstream);
                  
                  vorbis_synthesis_read(&vd,bout); /* tell libvorbis how
                                                      many samples we
                                                      actually consumed */
                }            
              }
            }
            if(ogg_page_eos(&og))eos=1;
          }
        }
        if(!eos){
          buffer=ogg_sync_buffer(&oy,4096);
          //bytes=fread(buffer,1,4096,stdin);
		  bytes=fread(buffer,1,4096,instream);
          ogg_sync_wrote(&oy,bytes);
          if(bytes==0)eos=1;
        }
      }
      
      /* ogg_page and ogg_packet structs always point to storage in
         libvorbis.  They're never freed or manipulated directly */
      
      vorbis_block_clear(&vb);
      vorbis_dsp_clear(&vd);
    }else{
      fprintf(stderr,"Error: Corrupt header during playback initialization.\n");
    }

    /* clean up this logical bitstream; before exit we see if we're
       followed by another [chained] */
    
    ogg_stream_clear(&os);
    vorbis_comment_clear(&vc);
    vorbis_info_clear(&vi);  /* must be called last */
  }

  /* OK, clean up the framer */
  ogg_sync_clear(&oy);
  
  fprintf(stderr,"Done.\n");
  return(0);
}
Ejemplo n.º 29
0
RefPtr<MediaDataDecoder::InitPromise>
VorbisDataDecoder::Init()
{
  vorbis_info_init(&mVorbisInfo);
  vorbis_comment_init(&mVorbisComment);
  PodZero(&mVorbisDsp);
  PodZero(&mVorbisBlock);

  AutoTArray<unsigned char*,4> headers;
  AutoTArray<size_t,4> headerLens;
  if (!XiphExtradataToHeaders(headers, headerLens,
                              mInfo.mCodecSpecificConfig->Elements(),
                              mInfo.mCodecSpecificConfig->Length())) {
    return InitPromise::CreateAndReject(
      MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
                  RESULT_DETAIL("Could not get vorbis header.")),
      __func__);
  }
  for (size_t i = 0; i < headers.Length(); i++) {
    if (NS_FAILED(DecodeHeader(headers[i], headerLens[i]))) {
      return InitPromise::CreateAndReject(
        MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
                    RESULT_DETAIL("Could not decode vorbis header.")),
        __func__);
    }
  }

  MOZ_ASSERT(mPacketCount == 3);

  int r = vorbis_synthesis_init(&mVorbisDsp, &mVorbisInfo);
  if (r) {
    return InitPromise::CreateAndReject(
      MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
                  RESULT_DETAIL("Systhesis init fail.")),
      __func__);
  }

  r = vorbis_block_init(&mVorbisDsp, &mVorbisBlock);
  if (r) {
    return InitPromise::CreateAndReject(
      MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
                  RESULT_DETAIL("Block init fail.")),
      __func__);
  }

  if (mInfo.mRate != (uint32_t)mVorbisDsp.vi->rate) {
    LOG(LogLevel::Warning,
        ("Invalid Vorbis header: container and codec rate do not match!"));
  }
  if (mInfo.mChannels != (uint32_t)mVorbisDsp.vi->channels) {
    LOG(LogLevel::Warning,
        ("Invalid Vorbis header: container and codec channels do not match!"));
  }

  AudioConfig::ChannelLayout layout(mVorbisDsp.vi->channels);
  if (!layout.IsValid()) {
    return InitPromise::CreateAndReject(
      MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
                  RESULT_DETAIL("Invalid audio layout.")),
      __func__);
  }

  return InitPromise::CreateAndResolve(TrackInfo::kAudioTrack, __func__);
}
Ejemplo n.º 30
0
qboolean OGV_StartRead(cinematic_t *cin)
{
	int        status;
	ogg_page   og;
	ogg_packet op;
	int        i;

	cin->data = Com_Allocate(sizeof(cin_ogv_t));
	Com_Memset(cin->data, 0, sizeof(cin_ogv_t));

	ogg_sync_init(&g_ogm->oy);  /* Now we can read pages */

	//FIXME? can serialno be 0 in ogg? (better way to check inited?)
	//TODO: support for more than one audio stream? / detect files with one stream(or without correct ones)
	while (!g_ogm->os_audio.serialno || !g_ogm->os_video.serialno)
	{
		if (ogg_sync_pageout(&g_ogm->oy, &og) == 1)
		{
			if (strstr((char *)(og.body + 1), "vorbis"))
			{
				//FIXME? better way to find audio stream
				if (g_ogm->os_audio.serialno)
				{
					Com_Printf(S_COLOR_YELLOW "WARNING: more than one audio stream, in ogm-file(%s) ... we will stay at the first one\n", cin->name);
				}
				else
				{
					ogg_stream_init(&g_ogm->os_audio, ogg_page_serialno(&og));
					ogg_stream_pagein(&g_ogm->os_audio, &og);
				}
			}
			if (strstr((char *)(og.body + 1), "theora"))
			{
				if (g_ogm->os_video.serialno)
				{
					Com_Printf(S_COLOR_YELLOW "WARNING: more than one video stream, in ogm-file(%s) ... we will stay at the first one\n", cin->name);
				}
				else
				{
					ogg_stream_init(&g_ogm->os_video, ogg_page_serialno(&og));
					ogg_stream_pagein(&g_ogm->os_video, &og);
				}
			}
		}
		else if (OGV_LoadBlockToSync(cin))
		{
			break;
		}
	}

	if (!g_ogm->os_audio.serialno)
	{
		Com_Printf(S_COLOR_YELLOW "WARNING: Haven't found a audio(vorbis) stream in ogm-file (%s)\n", cin->name);
		return qfalse;
	}

	if (!g_ogm->os_video.serialno)
	{
		Com_Printf(S_COLOR_YELLOW "WARNING: Haven't found a video stream in ogm-file (%s)\n", cin->name);
		return qfalse;
	}

	//load vorbis header
	vorbis_info_init(&g_ogm->vi);
	vorbis_comment_init(&g_ogm->vc);
	i = 0;
	while (i < 3)
	{
		status = ogg_stream_packetout(&g_ogm->os_audio, &op);
		if (status < 0)
		{
			Com_Printf(S_COLOR_YELLOW "WARNING: Corrupt ogg packet while loading vorbis-headers, ogm-file(%s)\n", cin->name);
			return qfalse;
		}
		if (status > 0)
		{
			status = vorbis_synthesis_headerin(&g_ogm->vi, &g_ogm->vc, &op);
			if (i == 0 && status < 0)
			{
				Com_Printf(S_COLOR_YELLOW "WARNING: This Ogg bitstream does not contain Vorbis audio data, ogm-file(%s)\n", cin->name);
				return qfalse;
			}
			++i;
		}
		else if (OGV_LoadPagesToStreams(cin))
		{
			if (OGV_LoadBlockToSync(cin))
			{
				Com_Printf(S_COLOR_YELLOW "WARNING: Couldn't find all vorbis headers before end of ogm-file (%s)\n", cin->name);
				return qfalse;
			}
		}
	}

	vorbis_synthesis_init(&g_ogm->vd, &g_ogm->vi);

	// Do init
	{
		theora_info_init(&g_ogm->th_info);
		theora_comment_init(&g_ogm->th_comment);

		i = 0;
		while (i < 3)
		{
			status = ogg_stream_packetout(&g_ogm->os_video, &op);
			if (status < 0)
			{
				Com_Printf(S_COLOR_YELLOW "WARNING: Corrupt ogg packet while loading theora-headers, ogm-file(%s)\n", cin->name);
				return qfalse;
			}
			else if (status > 0)
			{
				status = theora_decode_header(&g_ogm->th_info, &g_ogm->th_comment, &op);
				if (i == 0 && status != 0)
				{
					Com_Printf(S_COLOR_YELLOW "WARNING: This Ogg bitstream does not contain theora data, ogm-file(%s)\n", cin->name);
					return qfalse;
				}
				++i;
			}
			else if (OGV_LoadPagesToStreams(cin))
			{
				if (OGV_LoadBlockToSync(cin))
				{
					Com_Printf(S_COLOR_YELLOW "WARNING: Couldn't find all theora headers before end of ogm-file (%s)\n", cin->name);
					return qfalse;
				}
			}
		}

		theora_decode_init(&g_ogm->th_state, &g_ogm->th_info);

		g_ogm->Vtime_unit = ((ogg_int64_t) g_ogm->th_info.fps_denominator * 1000 * 10000 / g_ogm->th_info.fps_numerator);
	}

	Com_DPrintf("Theora init done (%s)\n", cin->name);
	return qtrue;
}