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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <stdlib.h>
#include <string.h>
#include <avdec_private.h>
#include <codecs.h>
typedef struct
{
bgav_packet_t * p;
} gavl_t;
static gavl_source_status_t decode_frame_gavl(bgav_stream_t * s)
{
gavl_t * priv;
gavl_source_status_t st;
priv = s->decoder_priv;
if(priv->p)
{
bgav_stream_done_packet_read(s, priv->p);
priv->p = NULL;
}
if((st = bgav_stream_get_packet_read(s, &priv->p)) != GAVL_SOURCE_OK)
return st;
gavl_audio_frame_copy_ptrs(s->data.audio.format, s->data.audio.frame, priv->p->audio_frame);
return GAVL_SOURCE_OK;
}
static int init_gavl(bgav_stream_t * s)
{
gavl_t * priv;
if(s->action == BGAV_STREAM_PARSE)
return 1;
priv = calloc(1, sizeof(*priv));
s->decoder_priv = priv;
/* Need to get the first packet because the dv avi decoder
won't know the format before */
#if 1
if(bgav_stream_get_packet_read(s, &priv->p) != GAVL_SOURCE_OK)
return 0;
if(!priv->p->audio_frame)
return 0;
#endif
return 1;
}
static void close_gavl(bgav_stream_t * s)
{
gavl_t * priv;
priv = s->decoder_priv;
if(priv)
free(priv);
}
static void resync_gavl(bgav_stream_t * s)
{
gavl_t * priv;
priv = s->decoder_priv;
if(priv->p)
{
bgav_stream_done_packet_read(s, priv->p);
priv->p = NULL;
}
}
static bgav_audio_decoder_t decoder =
{
.fourccs = (uint32_t[]){ BGAV_MK_FOURCC('g', 'a', 'v', 'l'),
0x00 },
.name = "gavl audio decoder",
.init = init_gavl,
.close = close_gavl,
.resync = resync_gavl,
.decode_frame = decode_frame_gavl
};
void bgav_init_audio_decoders_gavl()
{
bgav_audio_decoder_register(&decoder);
}
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