/* $Id: encvorbis.c,v 1.6 2005/03/05 15:08:32 titer Exp $
This file is part of the HandBrake source code.
- Homepage: <http://handbrake.m0k.org/>.
+ Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#include "hb.h"
uint64_t pts;
hb_list_t * list;
- int channelsused;
+ int out_discrete_channels;
int channel_map[6];
+ int64_t prev_blocksize;
};
int encvorbisInit( hb_work_object_t * w, hb_job_t * job )
{
+ hb_audio_t * audio = w->audio;
int i;
ogg_packet header[3];
hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
w->private_data = pv;
- pv->channelsused = w->config->vorbis.channelsused;
+ pv->out_discrete_channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(audio->config.out.mixdown);
pv->job = job;
hb_log( "encvorbis: opening libvorbis" );
+ /* 28kbps/channel seems to be the minimum for 6ch vorbis. */
+ int min_bitrate = 28 * pv->out_discrete_channels;
+ if (pv->out_discrete_channels > 2 && audio->config.out.bitrate < min_bitrate)
+ {
+ hb_log( "encvorbis: Selected bitrate (%d kbps) too low for %d channel audio.", audio->config.out.bitrate, pv->out_discrete_channels);
+ hb_log( "encvorbis: Resetting bitrate to %d kbps", min_bitrate);
+ /* Naughty! We shouldn't modify the audio from here. */
+ audio->config.out.bitrate = min_bitrate;
+ }
+
/* init */
+ for( i = 0; i < 3; i++ )
+ {
+ // Zero vorbis headers so that we don't crash in mk_laceXiph
+ // when vorbis_encode_setup_managed fails.
+ memset( w->config->vorbis.headers[i], 0, sizeof( ogg_packet ) );
+ }
vorbis_info_init( &pv->vi );
- if( vorbis_encode_setup_managed( &pv->vi, pv->channelsused,
- job->arate, -1, 1000 * job->abitrate, -1 ) ||
- vorbis_encode_ctl( &pv->vi, OV_ECTL_RATEMANAGE_AVG, NULL ) ||
+ if( vorbis_encode_setup_managed( &pv->vi, pv->out_discrete_channels,
+ audio->config.out.samplerate, -1, 1000 * audio->config.out.bitrate, -1 ) )
+ {
+ hb_error( "encvorbis: vorbis_encode_setup_managed failed.\n" );
+ *job->die = 1;
+ return 0;
+ }
+
+ if( vorbis_encode_ctl( &pv->vi, OV_ECTL_RATEMANAGE2_SET, NULL ) ||
vorbis_encode_setup_init( &pv->vi ) )
{
- hb_log( "encvorbis: vorbis_encode_setup_managed failed" );
+ hb_error( "encvorbis: vorbis_encode_ctl( ratemanage2_set ) OR vorbis_encode_setup_init failed.\n" );
+ *job->die = 1;
+ return 0;
}
/* add a comment */
header[i].packet, header[i].bytes );
}
- pv->input_samples = pv->channelsused * OGGVORBIS_FRAME_SIZE;
+ pv->input_samples = pv->out_discrete_channels * OGGVORBIS_FRAME_SIZE;
pv->buf = malloc( pv->input_samples * sizeof( float ) );
pv->list = hb_list_init();
- switch (pv->channelsused) {
+ switch (pv->out_discrete_channels) {
case 1:
pv->channel_map[0] = 0;
break;
case 6:
- pv->channel_map[0] = 0;
- pv->channel_map[1] = 2;
- pv->channel_map[2] = 1;
- pv->channel_map[3] = 4;
- pv->channel_map[4] = 5;
- pv->channel_map[5] = 3;
+ // Vorbis use the following channels map = L C R Ls Rs Lfe
+ if( audio->config.in.codec == HB_ACODEC_AC3 )
+ {
+ pv->channel_map[0] = 1;
+ pv->channel_map[1] = 2;
+ pv->channel_map[2] = 3;
+ pv->channel_map[3] = 4;
+ pv->channel_map[4] = 5;
+ pv->channel_map[5] = 0;
+ }
+ else
+ {
+ pv->channel_map[0] = 1;
+ pv->channel_map[1] = 0;
+ pv->channel_map[2] = 2;
+ pv->channel_map[3] = 3;
+ pv->channel_map[4] = 4;
+ pv->channel_map[5] = 5;
+ }
break;
default:
- hb_log("encvorbis.c: Unable to correctly proccess %d channels, assuming stereo.", pv->channelsused);
+ hb_log("encvorbis.c: Unable to correctly proccess %d channels, assuming stereo.", pv->out_discrete_channels);
case 2:
// Assume stereo
pv->channel_map[0] = 0;
**********************************************************************/
void encvorbisClose( hb_work_object_t * w )
{
+ hb_work_private_t * pv = w->private_data;
+
+ vorbis_block_clear( &pv->vb );
+ vorbis_dsp_clear( &pv->vd );
+ vorbis_comment_clear( &pv->vc );
+ vorbis_info_clear( &pv->vi );
+
+ if (pv->list)
+ hb_list_empty( &pv->list );
+
+ free( pv->buf );
+ free( pv );
+ w->private_data = NULL;
}
/***********************************************************************
{
hb_work_private_t * pv = w->private_data;
hb_buffer_t * buf;
+ int64_t blocksize = 0;
if( vorbis_analysis_blockout( &pv->vd, &pv->vb ) == 1 )
{
memcpy( buf->data, &op, sizeof( ogg_packet ) );
memcpy( buf->data + sizeof( ogg_packet ), op.packet,
op.bytes );
- buf->key = 1;
- buf->start = pv->pts; /* No exact, but who cares - the OGM
- muxer doesn't use it */
- buf->stop = buf->start +
- 90000 * OGGVORBIS_FRAME_SIZE + pv->job->arate;
-
+ blocksize = vorbis_packet_blocksize(&pv->vi, &op);
+ buf->frametype = HB_FRAME_AUDIO;
+ buf->start = (int64_t)(vorbis_granule_time(&pv->vd, op.granulepos) * 90000);
+ buf->stop = (int64_t)(vorbis_granule_time(&pv->vd, (pv->prev_blocksize + blocksize)/4 + op.granulepos) * 90000);
+ /* The stop time isn't accurate for the first ~3 packets, as the actual blocksize depends on the previous _and_ current packets. */
+ pv->prev_blocksize = blocksize;
return buf;
}
}
buffer = vorbis_analysis_buffer( &pv->vd, OGGVORBIS_FRAME_SIZE );
for( i = 0; i < OGGVORBIS_FRAME_SIZE; i++ )
{
- for( j = 0; j < pv->channelsused; j++)
+ for( j = 0; j < pv->out_discrete_channels; j++)
{
- buffer[j][i] = ((float *) pv->buf)[(pv->channelsused * i + pv->channel_map[j])] / 32768.f;
+ buffer[j][i] = ((float *) pv->buf)[(pv->out_discrete_channels * i + pv->channel_map[j])] / 32768.f;
}
}
vorbis_analysis_wrote( &pv->vd, OGGVORBIS_FRAME_SIZE );
hb_work_private_t * pv = w->private_data;
hb_buffer_t * buf;
+ if ( (*buf_in)->size <= 0 )
+ {
+ /* EOF on input - send it downstream & say we're done */
+ *buf_out = *buf_in;
+ *buf_in = NULL;
+ return HB_WORK_DONE;
+ }
+
hb_list_add( pv->list, *buf_in );
*buf_in = NULL;
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