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vima: decode directly to the user-provided AVFrame 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-02-13 12:06:40 +00:00
parent 845fa2f5c9
commit 9145818ecd
1 changed files with 4 additions and 7 deletions
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11
libavcodec/vima.c
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@ -26,7 +26,6 @@
#include "adpcm_data.h"
typedef struct {
AVFrame frame;
uint16_t predict_table[5786 * 2];
} VimaContext;
@ -125,8 +124,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
}
}
avcodec_get_frame_defaults(&vima->frame);
avctx->coded_frame = &vima->frame;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
return 0;
@ -137,6 +134,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
{
GetBitContext gb;
VimaContext *vima = avctx->priv_data;
AVFrame *frame = data;
int16_t pcm_data[2];
uint32_t samples;
int8_t channel_hint[2];
@ -171,14 +169,14 @@ static int decode_frame(AVCodecContext *avctx, void *data,
pcm_data[1] = get_sbits(&gb, 16);
}
vima->frame.nb_samples = samples;
if ((ret = ff_get_buffer(avctx, &vima->frame)) < 0) {
frame->nb_samples = samples;
if ((ret = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
for (chan = 0; chan < channels; chan++) {
uint16_t *dest = (uint16_t*)vima->frame.data[0] + chan;
uint16_t *dest = (uint16_t*)frame->data[0] + chan;
int step_index = channel_hint[chan];
int output = pcm_data[chan];
int sample;
@ -221,7 +219,6 @@ static int decode_frame(AVCodecContext *avctx, void *data,
}
*got_frame_ptr = 1;
*(AVFrame *)data = vima->frame;
return pkt->size;
}