#include "faac.h"
-struct hb_work_object_s
+struct hb_work_private_s
{
- HB_WORK_COMMON;
-
hb_job_t * job;
- hb_audio_t * audio;
faacEncHandle * faac;
unsigned long input_samples;
hb_list_t * list;
int64_t pts;
+
+ int out_discrete_channels;
+
};
-/***********************************************************************
- * Local prototypes
- **********************************************************************/
-static void Close( hb_work_object_t ** _w );
-static int Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
- hb_buffer_t ** buf_out );
+int encfaacInit( hb_work_object_t *, hb_job_t * );
+int encfaacWork( hb_work_object_t *, hb_buffer_t **, hb_buffer_t ** );
+void encfaacClose( hb_work_object_t * );
+
+hb_work_object_t hb_encfaac =
+{
+ WORK_ENCFAAC,
+ "AAC encoder (libfaac)",
+ encfaacInit,
+ encfaacWork,
+ encfaacClose
+};
/***********************************************************************
* hb_work_encfaac_init
***********************************************************************
*
**********************************************************************/
-hb_work_object_t * hb_work_encfaac_init( hb_job_t * job, hb_audio_t * audio )
+int encfaacInit( hb_work_object_t * w, hb_job_t * job )
{
- hb_work_object_t * w = calloc( sizeof( hb_work_object_t ), 1 );
+ hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
faacEncConfigurationPtr cfg;
- w->name = strdup( "AAC encoder (libfaac)" );
- w->work = Work;
- w->close = Close;
+ uint8_t * bytes;
+ unsigned long length;
- w->job = job;
- w->audio = audio;
+ w->private_data = pv;
- w->faac = faacEncOpen( job->arate, 2, &w->input_samples,
- &w->output_bytes );
- w->buf = malloc( w->input_samples * sizeof( float ) );
+ pv->job = job;
+
+ /* pass the number of channels used into the private work data */
+ pv->out_discrete_channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(w->amixdown);
+
+ pv->faac = faacEncOpen( job->arate, pv->out_discrete_channels, &pv->input_samples,
+ &pv->output_bytes );
+ pv->buf = malloc( pv->input_samples * sizeof( float ) );
- cfg = faacEncGetCurrentConfiguration( w->faac );
+ cfg = faacEncGetCurrentConfiguration( pv->faac );
cfg->mpegVersion = MPEG4;
cfg->aacObjectType = LOW;
cfg->allowMidside = 1;
- cfg->useLfe = 0;
+
+ if (pv->out_discrete_channels == 6) {
+ /* we are preserving 5.1 audio into 6-channel AAC,
+ so indicate that we have an lfe channel */
+ cfg->useLfe = 1;
+ } else {
+ cfg->useLfe = 0;
+ }
+
cfg->useTns = 0;
- cfg->bitRate = job->abitrate * 500; /* Per channel */
+ cfg->bitRate = job->abitrate * 1000 / pv->out_discrete_channels; /* Per channel */
cfg->bandWidth = 0;
cfg->outputFormat = 0;
cfg->inputFormat = FAAC_INPUT_FLOAT;
- if( !faacEncSetConfiguration( w->faac, cfg ) )
+
+ if (w->amixdown == HB_AMIXDOWN_6CH && w->source_acodec == HB_ACODEC_AC3)
+ {
+ /* we are preserving 5.1 AC-3 audio into 6-channel AAC, and need to
+ re-map the output of deca52 into our own mapping - the mapping
+ below is the default mapping expected by QuickTime */
+ /* DTS output from libdca is already in the right mapping for QuickTime */
+ /* This doesn't seem to be correct for VLC on Linux */
+ cfg->channel_map[0] = 2;
+ cfg->channel_map[1] = 1;
+ cfg->channel_map[2] = 3;
+ cfg->channel_map[3] = 4;
+ cfg->channel_map[4] = 5;
+ cfg->channel_map[5] = 0;
+ }
+
+ if( !faacEncSetConfiguration( pv->faac, cfg ) )
{
hb_log( "faacEncSetConfiguration failed" );
+ *job->die = 1;
+ return 0;
}
- if( faacEncGetDecoderSpecificInfo( w->faac, &audio->config.faac.decinfo,
- &audio->config.faac.size ) < 0 )
+
+ if( faacEncGetDecoderSpecificInfo( pv->faac, &bytes, &length ) < 0 )
{
hb_log( "faacEncGetDecoderSpecificInfo failed" );
+ *job->die = 1;
+ return 0;
}
+ memcpy( w->config->aac.bytes, bytes, length );
+ w->config->aac.length = length;
+ free( bytes );
- w->list = hb_list_init();
- w->pts = -1;
+ pv->list = hb_list_init();
+ pv->pts = -1;
- return w;
+ return 0;
}
/***********************************************************************
***********************************************************************
*
**********************************************************************/
-static void Close( hb_work_object_t ** _w )
+void encfaacClose( hb_work_object_t * w )
{
- hb_work_object_t * w = *_w;
-
- faacEncClose( w->faac );
- free( w->buf );
- hb_list_empty( &w->list );
- free( w->audio->config.faac.decinfo );
-
- free( w->name );
- free( w );
- *_w = NULL;
+ hb_work_private_t * pv = w->private_data;
+ faacEncClose( pv->faac );
+ free( pv->buf );
+ hb_list_empty( &pv->list );
+ free( pv );
+ w->private_data = NULL;
}
/***********************************************************************
**********************************************************************/
static hb_buffer_t * Encode( hb_work_object_t * w )
{
+ hb_work_private_t * pv = w->private_data;
hb_buffer_t * buf;
- uint64_t pts;
- int pos;
+ uint64_t pts, pos;
- if( hb_list_bytes( w->list ) < w->input_samples * sizeof( float ) )
+ if( hb_list_bytes( pv->list ) < pv->input_samples * sizeof( float ) )
{
/* Need more data */
return NULL;
}
- hb_list_getbytes( w->list, w->buf, w->input_samples * sizeof( float ),
+ hb_list_getbytes( pv->list, pv->buf, pv->input_samples * sizeof( float ),
&pts, &pos );
- buf = hb_buffer_init( w->output_bytes );
- buf->start = pts + 90000 * pos / 2 / sizeof( float ) / w->job->arate;
- buf->stop = buf->start + 90000 * w->input_samples / w->job->arate / 2;
- buf->size = faacEncEncode( w->faac, (int32_t *) w->buf,
- w->input_samples, buf->data, w->output_bytes );
- buf->key = 1;
+ buf = hb_buffer_init( pv->output_bytes );
+ buf->start = pts + 90000 * pos / pv->out_discrete_channels / sizeof( float ) / pv->job->arate;
+ buf->stop = buf->start + 90000 * pv->input_samples / pv->job->arate / pv->out_discrete_channels;
+ buf->size = faacEncEncode( pv->faac, (int32_t *) pv->buf,
+ pv->input_samples, buf->data, pv->output_bytes );
+ buf->frametype = HB_FRAME_AUDIO;
if( !buf->size )
{
***********************************************************************
*
**********************************************************************/
-static int Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
+int encfaacWork( hb_work_object_t * w, hb_buffer_t ** buf_in,
hb_buffer_t ** buf_out )
{
+ hb_work_private_t * pv = w->private_data;
hb_buffer_t * buf;
- hb_list_add( w->list, *buf_in );
+ hb_list_add( pv->list, *buf_in );
*buf_in = NULL;
*buf_out = buf = Encode( w );
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