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gsm: decode directly to the user-provided AVFrame

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This commit is contained in:
Justin Ruggles 2012-12-23 18:00:01 -05:00
parent cb7b47a61d
commit 6fdfdb23d3
2 changed files with 5 additions and 12 deletions
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16
libavcodec/gsmdec.c
View File

@ -34,8 +34,6 @@
static av_cold int gsm_init(AVCodecContext *avctx)
{
GSMContext *s = avctx->priv_data;
avctx->channels = 1;
avctx->channel_layout = AV_CH_LAYOUT_MONO;
avctx->sample_rate = 8000;
@ -51,16 +49,13 @@ static av_cold int gsm_init(AVCodecContext *avctx)
avctx->block_align = GSM_MS_BLOCK_SIZE;
}
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;
return 0;
}
static int gsm_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
GSMContext *s = avctx->priv_data;
AVFrame *frame = data;
int res;
GetBitContext gb;
const uint8_t *buf = avpkt->data;
@ -73,12 +68,12 @@ static int gsm_decode_frame(AVCodecContext *avctx, void *data,
}
/* get output buffer */
s->frame.nb_samples = avctx->frame_size;
if ((res = ff_get_buffer(avctx, &s->frame)) < 0) {
frame->nb_samples = avctx->frame_size;
if ((res = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return res;
}
samples = (int16_t *)s->frame.data[0];
samples = (int16_t *)frame->data[0];
switch (avctx->codec_id) {
case AV_CODEC_ID_GSM:
@ -95,8 +90,7 @@ static int gsm_decode_frame(AVCodecContext *avctx, void *data,
return res;
}
*got_frame_ptr = 1;
*(AVFrame *)data = s->frame;
*got_frame_ptr = 1;
return avctx->block_align;
}

1
libavcodec/gsmdec_data.h
View File

@ -26,7 +26,6 @@
#include "avcodec.h"
typedef struct GSMContext {
AVFrame frame;
// Contains first 120 elements from the previous frame
// (used by long_term_synth according to the "lag"),
// then in the following 160 elements the current