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Code Issues Releases Activity

imc/iac: decode directly to the user-provided AVFrame

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This commit is contained in:
Justin Ruggles 2012-12-23 18:01:45 -05:00
parent 6fdfdb23d3
commit 9b28e58357
1 changed files with 7 additions and 12 deletions
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19
libavcodec/imc.c
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@ -80,8 +80,6 @@ typedef struct IMCChannel {
} IMCChannel; } IMCChannel;
typedef struct { typedef struct {
AVFrame frame;
IMCChannel chctx[2]; IMCChannel chctx[2];
/** MDCT tables */ /** MDCT tables */
@ -252,9 +250,6 @@ static av_cold int imc_decode_init(AVCodecContext *avctx)
avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO
: AV_CH_LAYOUT_STEREO; : AV_CH_LAYOUT_STEREO;
avcodec_get_frame_defaults(&q->frame);
avctx->coded_frame = &q->frame;
return 0; return 0;
} }
@ -929,6 +924,7 @@ static int imc_decode_block(AVCodecContext *avctx, IMCContext *q, int ch)
static int imc_decode_frame(AVCodecContext *avctx, void *data, static int imc_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt) int *got_frame_ptr, AVPacket *avpkt)
{ {
AVFrame *frame = data;
const uint8_t *buf = avpkt->data; const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size; int buf_size = avpkt->size;
int ret, i; int ret, i;
@ -943,14 +939,14 @@ static int imc_decode_frame(AVCodecContext *avctx, void *data,
} }
/* get output buffer */ /* get output buffer */
q->frame.nb_samples = COEFFS; frame->nb_samples = COEFFS;
if ((ret = ff_get_buffer(avctx, &q->frame)) < 0) { if ((ret = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret; return ret;
} }
for (i = 0; i < avctx->channels; i++) { for (i = 0; i < avctx->channels; i++) {
q->out_samples = (float *)q->frame.extended_data[i]; q->out_samples = (float *)frame->extended_data[i];
q->dsp.bswap16_buf(buf16, (const uint16_t*)buf, IMC_BLOCK_SIZE / 2); q->dsp.bswap16_buf(buf16, (const uint16_t*)buf, IMC_BLOCK_SIZE / 2);
@ -963,12 +959,11 @@ static int imc_decode_frame(AVCodecContext *avctx, void *data,
} }
if (avctx->channels == 2) { if (avctx->channels == 2) {
q->fdsp.butterflies_float((float *)q->frame.extended_data[0], q->fdsp.butterflies_float((float *)frame->extended_data[0],
(float *)q->frame.extended_data[1], COEFFS); (float *)frame->extended_data[1], COEFFS);
} }
*got_frame_ptr = 1; *got_frame_ptr = 1;
*(AVFrame *)data = q->frame;
return IMC_BLOCK_SIZE * avctx->channels; return IMC_BLOCK_SIZE * avctx->channels;
} }