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@ -36,6 +36,7 @@ |
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#include "g723_1_data.h" |
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typedef struct g723_1_context { |
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AVFrame frame; |
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G723_1_Subframe subframe[4]; |
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FrameType cur_frame_type; |
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FrameType past_frame_type; |
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@ -80,6 +81,9 @@ static av_cold int g723_1_decode_init(AVCodecContext *avctx) |
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p->pf_gain = 1 << 12; |
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memcpy(p->prev_lsp, dc_lsp, LPC_ORDER * sizeof(int16_t)); |
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avcodec_get_frame_defaults(&p->frame); |
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avctx->coded_frame = &p->frame; |
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return 0; |
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} |
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@ -950,12 +954,12 @@ static void formant_postfilter(G723_1_Context *p, int16_t *lpc, int16_t *buf) |
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} |
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static int g723_1_decode_frame(AVCodecContext *avctx, void *data, |
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int *data_size, AVPacket *avpkt) |
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int *got_frame_ptr, AVPacket *avpkt) |
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{ |
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G723_1_Context *p = avctx->priv_data; |
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const uint8_t *buf = avpkt->data; |
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int buf_size = avpkt->size; |
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int16_t *out = data; |
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int16_t *out; |
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int dec_mode = buf[0] & 3; |
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PPFParam ppf[SUBFRAMES]; |
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@ -963,10 +967,10 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data, |
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int16_t lpc[SUBFRAMES * LPC_ORDER]; |
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int16_t acb_vector[SUBFRAME_LEN]; |
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int16_t *vector_ptr; |
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int bad_frame = 0, i, j; |
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int bad_frame = 0, i, j, ret; |
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if (!buf_size || buf_size < frame_size[dec_mode]) { |
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*data_size = 0; |
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*got_frame_ptr = 0; |
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return buf_size; |
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} |
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@ -976,7 +980,14 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data, |
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ActiveFrame : UntransmittedFrame; |
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} |
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*data_size = FRAME_LEN * sizeof(int16_t); |
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p->frame.nb_samples = FRAME_LEN + LPC_ORDER; |
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if ((ret = avctx->get_buffer(avctx, &p->frame)) < 0) { |
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av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
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return ret; |
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} |
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out= p->frame.data[0]; |
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if(p->cur_frame_type == ActiveFrame) { |
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if (!bad_frame) { |
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p->erased_frames = 0; |
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@ -1051,7 +1062,7 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data, |
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memcpy(p->prev_excitation, p->excitation + FRAME_LEN, |
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PITCH_MAX * sizeof(int16_t)); |
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} else { |
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memset(out, 0, *data_size); |
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memset(out, 0, sizeof(int16_t)*FRAME_LEN); |
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av_log(avctx, AV_LOG_WARNING, |
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"G.723.1: Comfort noise generation not supported yet\n"); |
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return frame_size[dec_mode]; |
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@ -1068,7 +1079,10 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data, |
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formant_postfilter(p, lpc, out); |
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memmove(out, out + LPC_ORDER, *data_size); |
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memmove(out, out + LPC_ORDER, sizeof(int16_t)*FRAME_LEN); |
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p->frame.nb_samples = FRAME_LEN; |
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*(AVFrame*)data = p->frame; |
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*got_frame_ptr = 1; |
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return frame_size[dec_mode]; |
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} |
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