#define AMR_AGC_ALPHA 0.9
typedef struct AMRContext {
- AVFrame avframe; ///< AVFrame for decoded samples
AMRNBFrame frame; ///< decoded AMR parameters (lsf coefficients, codebook indexes, etc)
uint8_t bad_frame_indicator; ///< bad frame ? 1 : 0
enum Mode cur_frame_mode;
for (i = 0; i < 4; i++)
p->prediction_error[i] = MIN_ENERGY;
- avcodec_get_frame_defaults(&p->avframe);
- avctx->coded_frame = &p->avframe;
-
ff_acelp_filter_init(&p->acelpf_ctx);
ff_acelp_vectors_init(&p->acelpv_ctx);
ff_celp_filter_init(&p->celpf_ctx);
{
AMRContext *p = avctx->priv_data; // pointer to private data
+ AVFrame *frame = data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
float *buf_out; // pointer to the output data buffer
const float *synth_fixed_vector; // pointer to the fixed vector that synthesis should use
/* get output buffer */
- p->avframe.nb_samples = AMR_BLOCK_SIZE;
- if ((ret = ff_get_buffer(avctx, &p->avframe)) < 0) {
+ frame->nb_samples = AMR_BLOCK_SIZE;
+ if ((ret = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
- buf_out = (float *)p->avframe.data[0];
+ buf_out = (float *)frame->data[0];
p->cur_frame_mode = unpack_bitstream(p, buf, buf_size);
if (p->cur_frame_mode == NO_DATA) {
p->acelpv_ctx.weighted_vector_sumf(p->lsf_avg, p->lsf_avg, p->lsf_q[3],
0.84, 0.16, LP_FILTER_ORDER);
- *got_frame_ptr = 1;
- *(AVFrame *)data = p->avframe;
+ *got_frame_ptr = 1;
/* return the amount of bytes consumed if everything was OK */
return frame_sizes_nb[p->cur_frame_mode] + 1; // +7 for rounding and +8 for TOC