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8svx: unify mono and stereo code paths.

This commit is contained in:
Nicolas George 2012-07-29 12:46:48 +02:00
parent 5caea648d4
commit 7a539e67f4
1 changed files with 9 additions and 8 deletions
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17
libavcodec/8svx.c
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@ -121,8 +121,9 @@ static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
/* decompress */
if (esc->table) {
const uint8_t *buf = avpkt->data;
uint8_t *dst;
int buf_size = avpkt->size;
int n = esc->samples_size;
int i, n = esc->samples_size;
if (buf_size < 2) {
av_log(avctx, AV_LOG_ERROR, "packet size is too small\n");
@ -130,15 +131,15 @@ static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
}
if (!(deinterleaved_samples = av_mallocz(n)))
return AVERROR(ENOMEM);
p = deinterleaved_samples;
dst = p = deinterleaved_samples;
/* the uncompressed starting value is contained in the first byte */
if (avctx->channels == 2) {
delta_decode(deinterleaved_samples , buf+1, buf_size/2-1, buf[0], esc->table);
buf += buf_size/2;
delta_decode(deinterleaved_samples+n/2-1, buf+1, buf_size/2-1, buf[0], esc->table);
} else
delta_decode(deinterleaved_samples , buf+1, buf_size-1 , buf[0], esc->table);
dst = deinterleaved_samples;
for (i = 0; i < avctx->channels; i++) {
delta_decode(dst, buf + 1, buf_size / avctx->channels - 1, buf[0], esc->table);
buf += buf_size / avctx->channels;
dst += n / avctx->channels - 1;
}
} else {
deinterleaved_samples = avpkt->data;
}