diff options
| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-08-02 19:34:53 +0200 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-08-03 07:07:07 +0200 |
| commit | d3e0766fc00734adbb589eb4c865feb8d26785ab (patch) | |
| tree | 42782204e089894a30c9addfdfe6c7068baacf50 /libavcodec/g723_1.c | |
| parent | 94bfdfd6f05a3ccbf048a3ea70694247c2929053 (diff) | |
g723_1: scale output as supposed for the case with postfilter disabled
Diffstat (limited to 'libavcodec/g723_1.c')
| -rw-r--r-- | libavcodec/g723_1.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c index 0b59f81ff6..18a5fe316a 100644 --- a/libavcodec/g723_1.c +++ b/libavcodec/g723_1.c @@ -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; |