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adpcm: simplify reading of IMA DK4 frame header.

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This commit is contained in:
Justin Ruggles 2011-09-10 13:52:33 -04:00
parent 8114f94ac9
commit a57ea1a87e
1 changed files with 5 additions and 8 deletions
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13
libavcodec/adpcm.c
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@ -528,15 +528,12 @@ static int adpcm_decode_frame(AVCodecContext *avctx,
if (avctx->block_align != 0 && buf_size > avctx->block_align) if (avctx->block_align != 0 && buf_size > avctx->block_align)
buf_size = avctx->block_align; buf_size = avctx->block_align;
c->status[0].predictor = (int16_t)bytestream_get_le16(&src); for (channel = 0; channel < avctx->channels; channel++) {
c->status[0].step_index = *src++; cs = &c->status[channel];
src++; cs->predictor = (int16_t)bytestream_get_le16(&src);
*samples++ = c->status[0].predictor; cs->step_index = *src++;
if (st) {
c->status[1].predictor = (int16_t)bytestream_get_le16(&src);
c->status[1].step_index = *src++;
src++; src++;
*samples++ = c->status[1].predictor; *samples++ = cs->predictor;
} }
while (src < buf + buf_size) { while (src < buf + buf_size) {
uint8_t v = *src++; uint8_t v = *src++;