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atrac3: move the 'samples_per_frame' field from ATRAC3Context to where it is used

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This commit is contained in:
Justin Ruggles 2012-10-18 22:50:40 -04:00
parent 7c1f93afe6
commit a2664c91fb
1 changed files with 6 additions and 7 deletions
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13
libavcodec/atrac3.c
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@ -92,7 +92,6 @@ typedef struct ATRAC3Context {
int coding_mode;
int bit_rate;
int sample_rate;
int samples_per_frame;
ChannelUnit *units;
//@}
@ -849,7 +848,7 @@ static int atrac3_decode_frame(AVCodecContext *avctx, void *data,
static av_cold int atrac3_decode_init(AVCodecContext *avctx)
{
int i, ret;
int version, delay;
int version, delay, samples_per_frame;
const uint8_t *edata_ptr = avctx->extradata;
ATRAC3Context *q = avctx->priv_data;
static VLC_TYPE atrac3_vlc_table[4096][2];
@ -878,7 +877,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
bytestream_get_le16(&edata_ptr)); // Unknown always 0
/* setup */
q->samples_per_frame = SAMPLES_PER_FRAME * avctx->channels;
samples_per_frame = SAMPLES_PER_FRAME * avctx->channels;
version = 4;
delay = 0x88E;
q->coding_mode = q->coding_mode ? JOINT_STEREO : STEREO;
@ -895,7 +894,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
} else if (avctx->extradata_size == 10) {
/* Parse the extradata, RM format. */
version = bytestream_get_be32(&edata_ptr);
q->samples_per_frame = bytestream_get_be16(&edata_ptr);
samples_per_frame = bytestream_get_be16(&edata_ptr);
delay = bytestream_get_be16(&edata_ptr);
q->coding_mode = bytestream_get_be16(&edata_ptr);
q->scrambled_stream = 1;
@ -912,10 +911,10 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
if (q->samples_per_frame != SAMPLES_PER_FRAME &&
q->samples_per_frame != SAMPLES_PER_FRAME * 2) {
if (samples_per_frame != SAMPLES_PER_FRAME &&
samples_per_frame != SAMPLES_PER_FRAME * 2) {
av_log(avctx, AV_LOG_ERROR, "Unknown amount of samples per frame %d.\n",
q->samples_per_frame);
samples_per_frame);
return AVERROR_INVALIDDATA;
}