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Simplify: use two distinct functions to decode MACE3 and MACE6, since the

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previous mace_decode_init() function was almost just a switch statement.

Originally committed as revision 15208 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-09-04 23:18:28 +00:00
parent b97c413832
commit 78df225866
1 changed files with 23 additions and 21 deletions
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44
libavcodec/mace.c
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@ -391,7 +391,7 @@ static av_cold int mace_decode_init(AVCodecContext * avctx)
return 0;
}
static int mace_decode_frame(AVCodecContext *avctx,
static int mace3_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
const uint8_t *buf, int buf_size)
{
@ -399,27 +399,29 @@ static int mace_decode_frame(AVCodecContext *avctx,
MACEContext *c = avctx->priv_data;
int i;
switch (avctx->codec->id) {
case CODEC_ID_MACE3:
dprintf(avctx, "mace_decode_frame[3]()");
for(i = 0; i < avctx->channels; i++)
Exp1to3(c, buf, samples + i, buf_size / 2 / avctx->channels,
avctx->channels, i + 1);
for(i = 0; i < avctx->channels; i++)
Exp1to3(c, buf, samples + i, buf_size / 2 / avctx->channels,
avctx->channels, i + 1);
*data_size = 2 * 3 * buf_size;
break;
case CODEC_ID_MACE6:
dprintf(avctx, "mace_decode_frame[6]()");
*data_size = 2 * 3 * buf_size;
for(i = 0; i < avctx->channels; i++)
Exp1to6(c, buf, samples + i, buf_size / avctx->channels,
avctx->channels, i + 1);
return buf_size;
}
static int mace6_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
const uint8_t *buf, int buf_size)
{
short *samples = data;
MACEContext *c = avctx->priv_data;
int i;
for(i = 0; i < avctx->channels; i++)
Exp1to6(c, buf, samples + i, buf_size / avctx->channels,
avctx->channels, i + 1);
*data_size = 2 * 6 * buf_size;
*data_size = 2 * 6 * buf_size;
break;
default:
return -1;
}
return buf_size;
}
@ -431,7 +433,7 @@ AVCodec mace3_decoder = {
mace_decode_init,
NULL,
NULL,
mace_decode_frame,
mace3_decode_frame,
.long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 3:1"),
};
@ -443,7 +445,7 @@ AVCodec mace6_decoder = {
mace_decode_init,
NULL,
NULL,
mace_decode_frame,
mace6_decode_frame,
.long_name = NULL_IF_CONFIG_SMALL("MACE (Macintosh Audio Compression/Expansion) 6:1"),
};