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avcodec/atrac3p: use float_dsp in ff_atrac3p_power_compensation

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Signed-off-by: James Almer <jamrial@gmail.com>
pull/265/head
James Almer 8 years ago
parent b664d1f3ff
commit 8f2f166c99
3 changed files with 26 additions and 25 deletions
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  1. 5
      libavcodec/atrac3plus.h
  2. 36
      libavcodec/atrac3plusdec.c
  3. 10
      libavcodec/atrac3plusdsp.c

5
libavcodec/atrac3plus.h
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@ -199,13 +199,14 @@ void ff_atrac3p_generate_tones(Atrac3pChanUnitCtx *ch_unit, AVFloatDSPContext *f
* Perform power compensation aka noise dithering.
*
* @param[in] ctx ptr to the channel context
* @param[in] fdsp pointer to float DSP context
* @param[in] ch_index which channel to process
* @param[in,out] sp ptr to channel spectrum to process
* @param[in] rng_index indicates which RNG table to use
* @param[in] sb_num which subband to process
*/
void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, int ch_index,
float *sp, int rng_index, int sb_num);
void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, AVFloatDSPContext *fdsp,
int ch_index, float *sp, int rng_index, int sb_num);
/**
* Regular IMDCT and windowing without overlapping,

36
libavcodec/atrac3plusdec.c
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@ -198,7 +198,7 @@ static av_cold int atrac3p_decode_init(AVCodecContext *avctx)
return 0;
}
static void decode_residual_spectrum(Atrac3pChanUnitCtx *ctx,
static void decode_residual_spectrum(ATRAC3PContext *ctx, Atrac3pChanUnitCtx *ch_unit,
float out[2][ATRAC3P_FRAME_SAMPLES],
int num_channels,
AVCodecContext *avctx)
@ -209,17 +209,17 @@ static void decode_residual_spectrum(Atrac3pChanUnitCtx *ctx,
/* calculate RNG table index for each subband */
int sb_RNG_index[ATRAC3P_SUBBANDS] = { 0 };
if (ctx->mute_flag) {
if (ch_unit->mute_flag) {
for (ch = 0; ch < num_channels; ch++)
memset(out[ch], 0, ATRAC3P_FRAME_SAMPLES * sizeof(*out[ch]));
return;
}
for (qu = 0, RNG_index = 0; qu < ctx->used_quant_units; qu++)
RNG_index += ctx->channels[0].qu_sf_idx[qu] +
ctx->channels[1].qu_sf_idx[qu];
for (qu = 0, RNG_index = 0; qu < ch_unit->used_quant_units; qu++)
RNG_index += ch_unit->channels[0].qu_sf_idx[qu] +
ch_unit->channels[1].qu_sf_idx[qu];
for (sb = 0; sb < ctx->num_coded_subbands; sb++, RNG_index += 128)
for (sb = 0; sb < ch_unit->num_coded_subbands; sb++, RNG_index += 128)
sb_RNG_index[sb] = RNG_index & 0x3FC;
/* inverse quant and power compensation */
@ -227,35 +227,35 @@ static void decode_residual_spectrum(Atrac3pChanUnitCtx *ctx,
/* clear channel's residual spectrum */
memset(out[ch], 0, ATRAC3P_FRAME_SAMPLES * sizeof(*out[ch]));
for (qu = 0; qu < ctx->used_quant_units; qu++) {
src = &ctx->channels[ch].spectrum[ff_atrac3p_qu_to_spec_pos[qu]];
for (qu = 0; qu < ch_unit->used_quant_units; qu++) {
src = &ch_unit->channels[ch].spectrum[ff_atrac3p_qu_to_spec_pos[qu]];
dst = &out[ch][ff_atrac3p_qu_to_spec_pos[qu]];
nspeclines = ff_atrac3p_qu_to_spec_pos[qu + 1] -
ff_atrac3p_qu_to_spec_pos[qu];
if (ctx->channels[ch].qu_wordlen[qu] > 0) {
q = ff_atrac3p_sf_tab[ctx->channels[ch].qu_sf_idx[qu]] *
ff_atrac3p_mant_tab[ctx->channels[ch].qu_wordlen[qu]];
if (ch_unit->channels[ch].qu_wordlen[qu] > 0) {
q = ff_atrac3p_sf_tab[ch_unit->channels[ch].qu_sf_idx[qu]] *
ff_atrac3p_mant_tab[ch_unit->channels[ch].qu_wordlen[qu]];
for (i = 0; i < nspeclines; i++)
dst[i] = src[i] * q;
}
}
for (sb = 0; sb < ctx->num_coded_subbands; sb++)
ff_atrac3p_power_compensation(ctx, ch, &out[ch][0],
for (sb = 0; sb < ch_unit->num_coded_subbands; sb++)
ff_atrac3p_power_compensation(ch_unit, ctx->fdsp, ch, &out[ch][0],
sb_RNG_index[sb], sb);
}
if (ctx->unit_type == CH_UNIT_STEREO) {
for (sb = 0; sb < ctx->num_coded_subbands; sb++) {
if (ctx->swap_channels[sb]) {
if (ch_unit->unit_type == CH_UNIT_STEREO) {
for (sb = 0; sb < ch_unit->num_coded_subbands; sb++) {
if (ch_unit->swap_channels[sb]) {
for (i = 0; i < ATRAC3P_SUBBAND_SAMPLES; i++)
FFSWAP(float, out[0][sb * ATRAC3P_SUBBAND_SAMPLES + i],
out[1][sb * ATRAC3P_SUBBAND_SAMPLES + i]);
}
/* flip coefficients' sign if requested */
if (ctx->negate_coeffs[sb])
if (ch_unit->negate_coeffs[sb])
for (i = 0; i < ATRAC3P_SUBBAND_SAMPLES; i++)
out[1][sb * ATRAC3P_SUBBAND_SAMPLES + i] = -(out[1][sb * ATRAC3P_SUBBAND_SAMPLES + i]);
}
@ -369,7 +369,7 @@ static int atrac3p_decode_frame(AVCodecContext *avctx, void *data,
avctx)) < 0)
return ret;
decode_residual_spectrum(&ctx->ch_units[ch_block], ctx->samples,
decode_residual_spectrum(ctx, &ctx->ch_units[ch_block], ctx->samples,
channels_to_process, avctx);
reconstruct_frame(ctx, &ctx->ch_units[ch_block],
channels_to_process, avctx);

10
libavcodec/atrac3plusdsp.c
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@ -415,11 +415,12 @@ static const int subband_to_qu[17] = {
0, 8, 12, 16, 18, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32
};
void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, int ch_index,
float *sp, int rng_index, int sb)
void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, AVFloatDSPContext *fdsp,
int ch_index, float *sp, int rng_index, int sb)
{
AtracGainInfo *g1, *g2;
float pwcsp[ATRAC3P_SUBBAND_SAMPLES], *dst, grp_lev, qu_lev;
LOCAL_ALIGNED_32(float, pwcsp, [ATRAC3P_SUBBAND_SAMPLES]);
float *dst, grp_lev, qu_lev;
int i, gain_lev, gcv = 0, qu, nsp;
int swap_ch = (ctx->unit_type == CH_UNIT_STEREO && ctx->swap_channels[sb]) ? 1 : 0;
@ -456,8 +457,7 @@ void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, int ch_index,
dst = &sp[ff_atrac3p_qu_to_spec_pos[qu]];
nsp = ff_atrac3p_qu_to_spec_pos[qu + 1] - ff_atrac3p_qu_to_spec_pos[qu];
for (i = 0; i < nsp; i++)
dst[i] += pwcsp[i] * qu_lev;
fdsp->vector_fmac_scalar(dst, pwcsp, qu_lev, nsp);
}
}

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