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Code Issues Releases Activity

adpcmdec: use planar sample format for adpcm_ima_ws for vqa version 3

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This commit is contained in:
Justin Ruggles 2012-08-29 15:54:39 -04:00
parent 4356d66d78
commit 8b854283c3
1 changed files with 11 additions and 6 deletions
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17
libavcodec/adpcm.c
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@ -141,6 +141,10 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx)
case AV_CODEC_ID_ADPCM_4XM:
avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
break;
case AV_CODEC_ID_ADPCM_IMA_WS:
avctx->sample_fmt = c->vqa_version == 3 ? AV_SAMPLE_FMT_S16P :
AV_SAMPLE_FMT_S16;
break;
default:
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
}
@ -862,14 +866,12 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
case AV_CODEC_ID_ADPCM_IMA_WS:
if (c->vqa_version == 3) {
for (channel = 0; channel < avctx->channels; channel++) {
int16_t *smp = samples + channel;
int16_t *smp = samples_p[channel];
for (n = nb_samples / 2; n > 0; n--) {
int v = bytestream2_get_byteu(&gb);
*smp = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
smp += avctx->channels;
*smp = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
smp += avctx->channels;
*smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
*smp++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
}
}
} else {
@ -1273,6 +1275,9 @@ static const enum AVSampleFormat sample_fmts_s16[] = { AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_NONE };
static const enum AVSampleFormat sample_fmts_s16p[] = { AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_NONE };
static const enum AVSampleFormat sample_fmts_both[] = { AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_NONE };
#define ADPCM_DECODER(id_, sample_fmts_, name_, long_name_) \
AVCodec ff_ ## name_ ## _decoder = { \
@ -1306,7 +1311,7 @@ ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_ISS, sample_fmts_s16, adpcm_ima_iss,
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT, sample_fmts_s16p, adpcm_ima_qt, "ADPCM IMA QuickTime");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SMJPEG, sample_fmts_s16, adpcm_ima_smjpeg, "ADPCM IMA Loki SDL MJPEG");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WAV, sample_fmts_s16p, adpcm_ima_wav, "ADPCM IMA WAV");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_s16, adpcm_ima_ws, "ADPCM IMA Westwood");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_both, adpcm_ima_ws, "ADPCM IMA Westwood");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_MS, sample_fmts_s16, adpcm_ms, "ADPCM Microsoft");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_2, sample_fmts_s16, adpcm_sbpro_2, "ADPCM Sound Blaster Pro 2-bit");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_3, sample_fmts_s16, adpcm_sbpro_3, "ADPCM Sound Blaster Pro 2.6-bit");