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author | Diego Biurrun <diego@biurrun.de> | 2016-01-04 11:58:21 +0100 |
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committer | Diego Biurrun <diego@biurrun.de> | 2016-11-28 17:19:30 +0100 |
commit | f0d3e43bd77b3194a28d75884cf83083b188bf30 (patch) | |
tree | 9cfa47c1a1136855a900dfa9c46500671f604aaf /libavcodec/ac3enc_float.c | |
parent | e22c63ac74b2968075be8bf0d2deb1ee63b28976 (diff) | |
download | ffmpeg-f0d3e43bd77b3194a28d75884cf83083b188bf30.tar.gz |
ac3enc: Reshuffle functions to avoid forward declarations
Diffstat (limited to 'libavcodec/ac3enc_float.c')
-rw-r--r-- | libavcodec/ac3enc_float.c | 70 |
1 files changed, 36 insertions, 34 deletions
diff --git a/libavcodec/ac3enc_float.c b/libavcodec/ac3enc_float.c index 5bae4bcb3c..249f9edd11 100644 --- a/libavcodec/ac3enc_float.c +++ b/libavcodec/ac3enc_float.c @@ -39,6 +39,42 @@ static const AVClass ac3enc_class = { "AC-3 Encoder", av_default_item_name, ac3_options, LIBAVUTIL_VERSION_INT }; + +/* + * Scale MDCT coefficients from float to 24-bit fixed-point. + */ +static void scale_coefficients(AC3EncodeContext *s) +{ + int chan_size = AC3_MAX_COEFS * s->num_blocks; + int cpl = s->cpl_on; + s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer + (chan_size * !cpl), + s->mdct_coef_buffer + (chan_size * !cpl), + chan_size * (s->channels + cpl)); +} + + +/* + * Clip MDCT coefficients to allowable range. + */ +static void clip_coefficients(AudioDSPContext *adsp, float *coef, + unsigned int len) +{ + adsp->vector_clipf(coef, coef, len, COEF_MIN, COEF_MAX); +} + + +/* + * Calculate a single coupling coordinate. + */ +static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl) +{ + float coord = 0.125; + if (energy_cpl > 0) + coord *= sqrtf(energy_ch / energy_cpl); + return FFMIN(coord, COEF_MAX); +} + + #include "ac3enc_template.c" @@ -82,40 +118,6 @@ av_cold int ff_ac3_float_mdct_init(AC3EncodeContext *s) } -/* - * Scale MDCT coefficients from float to 24-bit fixed-point. - */ -static void scale_coefficients(AC3EncodeContext *s) -{ - int chan_size = AC3_MAX_COEFS * s->num_blocks; - int cpl = s->cpl_on; - s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer + (chan_size * !cpl), - s->mdct_coef_buffer + (chan_size * !cpl), - chan_size * (s->channels + cpl)); -} - - -/* - * Clip MDCT coefficients to allowable range. - */ -static void clip_coefficients(AudioDSPContext *adsp, float *coef, - unsigned int len) -{ - adsp->vector_clipf(coef, coef, len, COEF_MIN, COEF_MAX); -} - - -/* - * Calculate a single coupling coordinate. - */ -static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl) -{ - float coord = 0.125; - if (energy_cpl > 0) - coord *= sqrtf(energy_ch / energy_cpl); - return FFMIN(coord, COEF_MAX); -} - av_cold int ff_ac3_float_encode_init(AVCodecContext *avctx) { AC3EncodeContext *s = avctx->priv_data; |