diff options
Diffstat (limited to 'libhb/encfaac.c')
| -rw-r--r-- | libhb/encfaac.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/libhb/encfaac.c b/libhb/encfaac.c new file mode 100644 index 000000000..a5b704f4c --- /dev/null +++ b/libhb/encfaac.c @@ -0,0 +1,166 @@ +/* $Id: encfaac.c,v 1.13 2005/03/03 17:21:57 titer Exp $ + + This file is part of the HandBrake source code. + Homepage: <http://handbrake.m0k.org/>. + It may be used under the terms of the GNU General Public License. */ + +#include "hb.h" + +#include "faac.h" + +struct hb_work_object_s +{ + HB_WORK_COMMON; + + hb_job_t * job; + hb_audio_t * audio; + + faacEncHandle * faac; + unsigned long input_samples; + unsigned long output_bytes; + uint8_t * buf; + + hb_list_t * list; + int64_t pts; +}; + +/*********************************************************************** + * 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 ); + +/*********************************************************************** + * hb_work_encfaac_init + *********************************************************************** + * + **********************************************************************/ +hb_work_object_t * hb_work_encfaac_init( hb_job_t * job, hb_audio_t * audio ) +{ + hb_work_object_t * w = calloc( sizeof( hb_work_object_t ), 1 ); + faacEncConfigurationPtr cfg; + w->name = strdup( "AAC encoder (libfaac)" ); + w->work = Work; + w->close = Close; + + w->job = job; + w->audio = audio; + + w->faac = faacEncOpen( job->arate, 2, &w->input_samples, + &w->output_bytes ); + w->buf = malloc( w->input_samples * sizeof( float ) ); + + cfg = faacEncGetCurrentConfiguration( w->faac ); + cfg->mpegVersion = MPEG4; + cfg->aacObjectType = LOW; + cfg->allowMidside = 1; + cfg->useLfe = 0; + cfg->useTns = 0; + cfg->bitRate = job->abitrate * 500; /* Per channel */ + cfg->bandWidth = 0; + cfg->outputFormat = 0; + cfg->inputFormat = FAAC_INPUT_FLOAT; + if( !faacEncSetConfiguration( w->faac, cfg ) ) + { + hb_log( "faacEncSetConfiguration failed" ); + } + if( faacEncGetDecoderSpecificInfo( w->faac, &audio->config.faac.decinfo, + &audio->config.faac.size ) < 0 ) + { + hb_log( "faacEncGetDecoderSpecificInfo failed" ); + } + + w->list = hb_list_init(); + w->pts = -1; + + return w; +} + +/*********************************************************************** + * Close + *********************************************************************** + * + **********************************************************************/ +static void Close( 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; +} + +/*********************************************************************** + * Encode + *********************************************************************** + * + **********************************************************************/ +static hb_buffer_t * Encode( hb_work_object_t * w ) +{ + hb_buffer_t * buf; + uint64_t pts; + int pos; + + if( hb_list_bytes( w->list ) < w->input_samples * sizeof( float ) ) + { + /* Need more data */ + return NULL; + } + + hb_list_getbytes( w->list, w->buf, w->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; + + if( !buf->size ) + { + /* Encoding was successful but we got no data. Try to encode + more */ + hb_buffer_close( &buf ); + return Encode( w ); + } + else if( buf->size < 0 ) + { + hb_log( "faacEncEncode failed" ); + hb_buffer_close( &buf ); + return NULL; + } + + return buf; +} + +/*********************************************************************** + * Work + *********************************************************************** + * + **********************************************************************/ +static int Work( hb_work_object_t * w, hb_buffer_t ** buf_in, + hb_buffer_t ** buf_out ) +{ + hb_buffer_t * buf; + + hb_list_add( w->list, *buf_in ); + *buf_in = NULL; + + *buf_out = buf = Encode( w ); + + while( buf ) + { + buf->next = Encode( w ); + buf = buf->next; + } + + return HB_WORK_OK; +} + |