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ac3dec: actually use drc_scale private option

This commit is contained in:
Anton Khirnov 2011-09-01 16:48:29 +02:00
parent 63e4c8a653
commit feedc0754b
2 changed files with 7 additions and 2 deletions
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7
libavcodec/ac3dec.c
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@ -176,6 +176,11 @@ static av_cold int ac3_decode_init(AVCodecContext *avctx)
AC3DecodeContext *s = avctx->priv_data;
s->avctx = avctx;
#if FF_API_DRC_SCALE
if (avctx->drc_scale)
s->drc_scale = avctx->drc_scale;
#endif
ff_ac3_common_init();
ac3_tables_init();
ff_mdct_init(&s->imdct_256, 8, 1, 1.0);
@ -788,7 +793,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
do {
if(get_bits1(gbc)) {
s->dynamic_range[i] = ((dynamic_range_tab[get_bits(gbc, 8)]-1.0) *
s->avctx->drc_scale)+1.0;
s->drc_scale)+1.0;
} else if(blk == 0) {
s->dynamic_range[i] = 1.0f;
}

2
libavcodec/options.c
View File

@ -447,7 +447,7 @@ static const AVOption options[]={
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D},
#endif
#if FF_API_DRC_SCALE
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, {.dbl = 1.0 }, 0.0, 1.0, A|D},
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 1.0, A|D},
#endif
#if FF_API_LAME_GLOBAL_OPTS
{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BIT_RESERVOIR }, INT_MIN, INT_MAX, A|E, "flags2"},