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Okayed parts of nellymoserenc.c

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Originally committed as revision 15126 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Bartlomiej Wolowiec 2008-08-31 19:26:33 +00:00
parent 1cf151e9ae
commit 748384a186
1 changed files with 15 additions and 0 deletions
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15
libavcodec/nellymoserenc.c
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@ -48,6 +48,8 @@
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);
@ -110,6 +112,13 @@ static av_cold int encode_init(AVCodecContext *avctx)
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);
@ -131,6 +140,12 @@ static av_cold int encode_end(AVCodecContext *avctx)
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,