typedef struct NellyMoserEncodeContext {
AVCodecContext *avctx;
int last_frame;
+ DSPContext dsp;
+ MDCTContext mdct_ctx;
} NellyMoserEncodeContext;
static float pow_table[POW_TABLE_SIZE]; ///< -pow(2, -i / 2048.0 - 3.0);
return -1;
}
+ if (avctx->sample_rate != 8000 && avctx->sample_rate != 11025 &&
+ avctx->sample_rate != 22050 && avctx->sample_rate != 44100 &&
+ avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
+ av_log(avctx, AV_LOG_ERROR, "Nellymoser works only with 8000, 11025, 22050 and 44100 sample rate\n");
+ return -1;
+ }
+
avctx->frame_size = NELLY_SAMPLES;
s->avctx = avctx;
ff_mdct_init(&s->mdct_ctx, 8, 0);
return 0;
}
+#define find_best(val, table, LUT, LUT_add, LUT_size) \
+ best_idx = \
+ LUT[av_clip ((lrintf(val) >> 8) + LUT_add, 0, LUT_size - 1)]; \
+ if (fabs(val - table[best_idx]) > fabs(val - table[best_idx + 1])) \
+ best_idx++;
+
AVCodec nellymoser_encoder = {
.name = "nellymoser",
.type = CODEC_TYPE_AUDIO,