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fixed to work nicely with the new system (and yes, I did originate the RoQ

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audio decoder for this project)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5350 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
melanson 2002-03-26 04:22:47 +00:00
parent 3eb9a68435
commit bfe1dcfba9
1 changed files with 20 additions and 18 deletions
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36
libmpcodecs/ad_roqaudio.c
View File

@ -5,7 +5,6 @@
#include "config.h"
#include "ad_internal.h"
#include "../roqav.h"
//#include "../adpcm.h"
static ad_info_t info =
{
@ -13,30 +12,36 @@ static ad_info_t info =
"roqaudio",
AFM_ROQAUDIO,
"Nick Kurshev",
"Mike Melanson ???"
"Mike Melanson"
"RoQA is an internal MPlayer FOURCC"
};
LIBAD_EXTERN(roqaudio)
static int preinit(sh_audio_t *sh_audio)
{
// minsize was stored in wf->nBlockAlign by the RoQ demuxer
sh_audio->audio_out_minsize=sh_audio->wf->nBlockAlign;
sh_audio->context = roq_decode_audio_init();
return 1;
}
static int init(sh_audio_t *sh_audio)
{
sh_audio->channels=sh_audio->wf->nChannels;
sh_audio->samplerate=sh_audio->wf->nSamplesPerSec;
sh_audio->i_bps = (sh_audio->channels * 22050) / 2;
if ((sh_audio->a_in_buffer =
(unsigned char *)malloc(sh_audio->audio_out_minsize / 2)) == NULL)
return 0;
return 1;
}
static int preinit(sh_audio_t *sh_audio)
{
/* minsize was stored in wf->nBlockAlign by the RoQ demuxer */
sh_audio->audio_out_minsize=sh_audio->wf->nBlockAlign;
sh_audio->context = roq_decode_audio_init();
return 1;
}
static void uninit(sh_audio_t *sh)
static void uninit(sh_audio_t *sh_audio)
{
free(sh_audio->a_in_buffer);
}
static int control(sh_audio_t *sh,int cmd,void* arg, ...)
@ -47,19 +52,16 @@ static int control(sh_audio_t *sh,int cmd,void* arg, ...)
static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
{
static unsigned char *ibuf = NULL;
unsigned char header_data[6];
int read_len;
// TODO!! FIXME!!!
if (!ibuf) ibuf = (unsigned char *)malloc(sh_audio->audio_out_minsize / 2);
/* figure out how much data to read */
if (demux_read_data(sh_audio->ds, header_data, 6) != 6) return -1; /* EOF */
read_len = (header_data[5] << 24) | (header_data[4] << 16) |
(header_data[3] << 8) | header_data[2];
read_len += 2; /* 16-bit arguments */
if (demux_read_data(sh_audio->ds, ibuf, read_len) != read_len) return -1;
return 2 * roq_decode_audio((unsigned short *)buf, ibuf,
if (demux_read_data(sh_audio->ds, sh_audio->a_in_buffer, read_len) !=
read_len) return -1;
return 2 * roq_decode_audio((unsigned short *)buf, sh_audio->a_in_buffer,
read_len, sh_audio->channels, sh_audio->context);
}