*/
#define CONFIG_AC3ENC_FLOAT 1
+#include "internal.h"
#include "ac3enc.h"
#include "eac3enc.h"
#include "kbdwin.h"
/**
* Finalize MDCT and free allocated memory.
+ *
+ * @param s AC-3 encoder private context
*/
av_cold void ff_ac3_float_mdct_end(AC3EncodeContext *s)
{
/**
* Initialize MDCT tables.
- * @param nbits log2(MDCT size)
+ *
+ * @param s AC-3 encoder private context
+ * @return 0 on success, negative error code on failure
*/
av_cold int ff_ac3_float_mdct_init(AC3EncodeContext *s)
{
}
-/**
+/*
* Apply KBD window to input samples prior to MDCT.
*/
-static void apply_window(DSPContext *dsp, float *output, const float *input,
- const float *window, unsigned int len)
+static void apply_window(void *dsp, float *output,
+ const float *input, const float *window,
+ unsigned int len)
{
- dsp->vector_fmul(output, input, window, len);
+ AVFloatDSPContext *fdsp = dsp;
+ fdsp->vector_fmul(output, input, window, len);
}
-/**
+/*
* Normalize the input samples.
* Not needed for the floating-point encoder.
*/
}
-/**
+/*
* Scale MDCT coefficients from float to 24-bit fixed-point.
*/
static void scale_coefficients(AC3EncodeContext *s)
}
-/**
+/*
* Clip MDCT coefficients to allowable range.
*/
static void clip_coefficients(DSPContext *dsp, float *coef, unsigned int len)
}
-/**
+/*
* Calculate a single coupling coordinate.
*/
static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)
#if CONFIG_AC3_ENCODER
AVCodec ff_ac3_encoder = {
- .name = "ac3",
- .type = AVMEDIA_TYPE_AUDIO,
- .id = CODEC_ID_AC3,
- .priv_data_size = sizeof(AC3EncodeContext),
- .init = ff_ac3_encode_init,
- .encode = ff_ac3_float_encode_frame,
- .close = ff_ac3_encode_close,
- .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_FLT,AV_SAMPLE_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
- .priv_class = &ac3enc_class,
+ .name = "ac3",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_AC3,
+ .priv_data_size = sizeof(AC3EncodeContext),
+ .init = ff_ac3_encode_init,
+ .encode2 = ff_ac3_float_encode_frame,
+ .close = ff_ac3_encode_close,
+ .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+ AV_SAMPLE_FMT_NONE },
+ .long_name = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"),
+ .priv_class = &ac3enc_class,
.channel_layouts = ff_ac3_channel_layouts,
+ .defaults = ac3_defaults,
};
#endif