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g723_1: scale output as supposed for the case with postfilter disabled

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This commit is contained in:
Kostya Shishkov 2012-08-02 19:34:53 +02:00
parent 94bfdfd6f0
commit d3e0766fc0
1 changed files with 10 additions and 4 deletions
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14
libavcodec/g723_1.c
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@ -1012,6 +1012,7 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
int16_t lpc[SUBFRAMES * LPC_ORDER];
int16_t acb_vector[SUBFRAME_LEN];
int16_t *vector_ptr;
int16_t *out;
int bad_frame = 0, i, j, ret;
if (buf_size < frame_size[dec_mode]) {
@ -1037,6 +1038,8 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
return ret;
}
out = (int16_t *)p->frame.data[0];
if (p->cur_frame_type == ACTIVE_FRAME) {
if (!bad_frame)
p->erased_frames = 0;
@ -1120,7 +1123,7 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
memcpy(p->prev_excitation, p->excitation + FRAME_LEN,
PITCH_MAX * sizeof(*p->excitation));
} else {
memset(p->frame.data[0], 0, FRAME_LEN * 2);
memset(out, 0, FRAME_LEN * 2);
av_log(avctx, AV_LOG_WARNING,
"G.723.1: Comfort noise generation not supported yet\n");
@ -1138,10 +1141,13 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
0, 1, 1 << 12);
memcpy(p->synth_mem, p->audio + FRAME_LEN, LPC_ORDER * sizeof(*p->audio));
if (p->postfilter)
if (p->postfilter) {
formant_postfilter(p, lpc, p->audio);
memcpy(p->frame.data[0], p->audio + LPC_ORDER, FRAME_LEN * 2);
memcpy(p->frame.data[0], p->audio + LPC_ORDER, FRAME_LEN * 2);
} else { // if output is not postfiltered it should be scaled by 2
for (i = 0; i < FRAME_LEN; i++)
out[i] = av_clip_int16(p->audio[LPC_ORDER + i] << 1);
}
*got_frame_ptr = 1;
*(AVFrame *)data = p->frame;