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authorprigaux <[email protected]>2007-02-11 20:00:15 +0000
committerprigaux <[email protected]>2007-02-11 20:00:15 +0000
commita74fd5a1ec37e53fe7008f022639af6ede0e82c9 (patch)
tree0a6a32640a840b72653149aa11efa264674df976 /libhb/deca52.c
parentf45dfeb2afb1b0bf46054959e8ea9494f3b7d14f (diff)
Merge the 0.8.0_mpeg4ip branch into the trunk
git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@285 b64f7644-9d1e-0410-96f1-a4d463321fa5
Diffstat (limited to 'libhb/deca52.c')
-rw-r--r--libhb/deca52.c203
1 files changed, 0 insertions, 203 deletions
diff --git a/libhb/deca52.c b/libhb/deca52.c
deleted file mode 100644
index b18acf641..000000000
--- a/libhb/deca52.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/* $Id: deca52.c,v 1.14 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 "a52dec/a52.h"
-
-struct hb_work_private_s
-{
- hb_job_t * job;
-
- /* liba52 handle */
- a52_state_t * state;
-
- int flags_in;
- int flags_out;
- int rate;
- int bitrate;
- float level;
-
- int error;
- int sync;
- int size;
-
- uint8_t frame[3840];
-
- hb_list_t * list;
-};
-
-int deca52Init( hb_work_object_t *, hb_job_t * );
-int deca52Work( hb_work_object_t *, hb_buffer_t **, hb_buffer_t ** );
-void deca52Close( hb_work_object_t * );
-
-hb_work_object_t hb_deca52 =
-{
- WORK_DECA52,
- "AC3 decoder",
- deca52Init,
- deca52Work,
- deca52Close
-};
-
-/***********************************************************************
- * Local prototypes
- **********************************************************************/
-static hb_buffer_t * Decode( hb_work_object_t * w );
-
-/***********************************************************************
- * hb_work_deca52_init
- ***********************************************************************
- * Allocate the work object, initialize liba52
- **********************************************************************/
-int deca52Init( hb_work_object_t * w, hb_job_t * job )
-{
- hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
- w->private_data = pv;
-
- pv->job = job;
-
- pv->list = hb_list_init();
- pv->state = a52_init( 0 );
- pv->flags_out = A52_STEREO;
- pv->level = 32768.0;
-
- return 0;
-}
-
-/***********************************************************************
- * Close
- ***********************************************************************
- * Free memory
- **********************************************************************/
-void deca52Close( hb_work_object_t * w )
-{
- hb_work_private_t * pv = w->private_data;
- a52_free( pv->state );
-}
-
-/***********************************************************************
- * Work
- ***********************************************************************
- * Add the given buffer to the data we already have, and decode as much
- * as we can
- **********************************************************************/
-int deca52Work( 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( pv->list, *buf_in );
- *buf_in = NULL;
-
- /* If we got more than a frame, chain raw buffers */
- *buf_out = buf = Decode( w );
- while( buf )
- {
- buf->next = Decode( w );
- buf = buf->next;
- }
-
- return HB_WORK_OK;
-}
-
-/***********************************************************************
- * Decode
- ***********************************************************************
- *
- **********************************************************************/
-static hb_buffer_t * Decode( hb_work_object_t * w )
-{
- hb_work_private_t * pv = w->private_data;
- hb_buffer_t * buf;
- int i, j;
- uint64_t pts;
- int pos;
-
- /* Get a frame header if don't have one yet */
- if( !pv->sync )
- {
- while( hb_list_bytes( pv->list ) >= 7 )
- {
- /* We have 7 bytes, check if this is a correct header */
- hb_list_seebytes( pv->list, pv->frame, 7 );
- pv->size = a52_syncinfo( pv->frame, &pv->flags_in, &pv->rate,
- &pv->bitrate );
- if( pv->size )
- {
- /* It is. W00t. */
- if( pv->error )
- {
- hb_log( "a52_syncinfo ok" );
- }
- pv->error = 0;
- pv->sync = 1;
- break;
- }
-
- /* It is not */
- if( !pv->error )
- {
- hb_log( "a52_syncinfo failed" );
- pv->error = 1;
- }
-
- /* Try one byte later */
- hb_list_getbytes( pv->list, pv->frame, 1, NULL, NULL );
- }
- }
-
- if( !pv->sync ||
- hb_list_bytes( pv->list ) < pv->size )
- {
- /* Need more data */
- return NULL;
- }
-
- /* Get the whole frame */
- hb_list_getbytes( pv->list, pv->frame, pv->size, &pts, &pos );
-
- /* AC3 passthrough: don't decode the AC3 frame */
- if( pv->job->acodec & HB_ACODEC_AC3 )
- {
- buf = hb_buffer_init( pv->size );
- memcpy( buf->data, pv->frame, pv->size );
- buf->start = pts + ( pos / pv->size ) * 6 * 256 * 90000 / pv->rate;
- buf->stop = buf->start + 6 * 256 * 90000 / pv->rate;
- pv->sync = 0;
- return buf;
- }
-
- /* Feed liba52 */
- a52_frame( pv->state, pv->frame, &pv->flags_out, &pv->level, 0 );
-
- /* 6 blocks per frame, 256 samples per block, 2 channels */
- buf = hb_buffer_init( 3072 * sizeof( float ) );
- buf->start = pts + ( pos / pv->size ) * 6 * 256 * 90000 / pv->rate;
- buf->stop = buf->start + 6 * 256 * 90000 / pv->rate;
-
- for( i = 0; i < 6; i++ )
- {
- sample_t * samples_in;
- float * samples_out;
-
- a52_block( pv->state );
- samples_in = a52_samples( pv->state );
- samples_out = ((float *) buf->data) + 512 * i;
-
- /* Interleave */
- for( j = 0; j < 256; j++ )
- {
- samples_out[2*j] = samples_in[j];
- samples_out[2*j+1] = samples_in[256+j];
- }
- }
-
- pv->sync = 0;
- return buf;
-}
-