diff options
author | James Almer <jamrial@gmail.com> | 2017-04-07 00:14:52 -0300 |
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committer | James Almer <jamrial@gmail.com> | 2017-04-07 00:19:32 -0300 |
commit | e7ec8c181fe4b78ba66cc37911e707a1fb4ec0df (patch) | |
tree | 079ff98dbd306ed413db84ba844abdc3331a2b83 /libavcodec | |
parent | c37e8c0b7fd4a68604102eb4c9d9c9f347c57ad2 (diff) | |
parent | f0d3e43bd77b3194a28d75884cf83083b188bf30 (diff) |
Merge commit 'f0d3e43bd77b3194a28d75884cf83083b188bf30'
* commit 'f0d3e43bd77b3194a28d75884cf83083b188bf30':
ac3enc: Reshuffle functions to avoid forward declarations
Merged-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/ac3enc_fixed.c | 58 | ||||
-rw-r--r-- | libavcodec/ac3enc_float.c | 83 | ||||
-rw-r--r-- | libavcodec/ac3enc_template.c | 12 |
3 files changed, 71 insertions, 82 deletions
diff --git a/libavcodec/ac3enc_fixed.c b/libavcodec/ac3enc_fixed.c index f10c3b5465..5e4250af3d 100644 --- a/libavcodec/ac3enc_fixed.c +++ b/libavcodec/ac3enc_fixed.c @@ -43,36 +43,6 @@ static const AVClass ac3enc_class = { .version = LIBAVUTIL_VERSION_INT, }; -static int normalize_samples(AC3EncodeContext *s); - -#include "ac3enc_template.c" - - -/** - * Finalize MDCT and free allocated memory. - * - * @param s AC-3 encoder private context - */ -av_cold void AC3_NAME(mdct_end)(AC3EncodeContext *s) -{ - ff_mdct_end(&s->mdct); -} - - -/** - * Initialize MDCT tables. - * - * @param s AC-3 encoder private context - * @return 0 on success, negative error code on failure - */ -av_cold int AC3_NAME(mdct_init)(AC3EncodeContext *s) -{ - int ret = ff_mdct_init(&s->mdct, 9, 0, -1.0); - s->mdct_window = ff_ac3_window; - return ret; -} - - /* * Normalize the input samples to use the maximum available precision. * This assumes signed 16-bit input samples. @@ -137,6 +107,34 @@ static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl) } +#include "ac3enc_template.c" + + +/** + * Finalize MDCT and free allocated memory. + * + * @param s AC-3 encoder private context + */ +av_cold void AC3_NAME(mdct_end)(AC3EncodeContext *s) +{ + ff_mdct_end(&s->mdct); +} + + +/** + * Initialize MDCT tables. + * + * @param s AC-3 encoder private context + * @return 0 on success, negative error code on failure + */ +av_cold int AC3_NAME(mdct_init)(AC3EncodeContext *s) +{ + int ret = ff_mdct_init(&s->mdct, 9, 0, -1.0); + s->mdct_window = ff_ac3_window; + return ret; +} + + static av_cold int ac3_fixed_encode_init(AVCodecContext *avctx) { AC3EncodeContext *s = avctx->priv_data; diff --git a/libavcodec/ac3enc_float.c b/libavcodec/ac3enc_float.c index 79839df6ce..d6e658b2b4 100644 --- a/libavcodec/ac3enc_float.c +++ b/libavcodec/ac3enc_float.c @@ -43,6 +43,49 @@ static const AVClass ac3enc_class = { .version = 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); +} + +static void sum_square_butterfly(AC3EncodeContext *s, float sum[4], + const float *coef0, const float *coef1, + int len) +{ + s->ac3dsp.sum_square_butterfly_float(sum, coef0, coef1, len); +} + + #include "ac3enc_template.c" @@ -86,46 +129,6 @@ 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)); -} - -static void sum_square_butterfly(AC3EncodeContext *s, float sum[4], - const float *coef0, const float *coef1, - int len) -{ - s->ac3dsp.sum_square_butterfly_float(sum, coef0, coef1, len); -} - -/* - * 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; diff --git a/libavcodec/ac3enc_template.c b/libavcodec/ac3enc_template.c index 0b23b964ac..be659872f7 100644 --- a/libavcodec/ac3enc_template.c +++ b/libavcodec/ac3enc_template.c @@ -36,18 +36,6 @@ #include "ac3enc.h" #include "eac3enc.h" -/* prototypes for static functions in ac3enc_fixed.c and ac3enc_float.c */ - -static void scale_coefficients(AC3EncodeContext *s); - -static void clip_coefficients(AudioDSPContext *adsp, CoefType *coef, - unsigned int len); - -static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl); - -static void sum_square_butterfly(AC3EncodeContext *s, CoefSumType sum[4], - const CoefType *coef0, const CoefType *coef1, - int len); int AC3_NAME(allocate_sample_buffers)(AC3EncodeContext *s) { |