#include <math.h>
#define BITSTREAM_READER_LE
+#include "libavutil/float_dsp.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
AVFrame frame;
GetBitContext gb;
DSPContext dsp;
+ AVFloatDSPContext fdsp;
FmtConvertContext fmt_conv;
FFTContext mdct[2];
for (i = 0; i < vc->codebook_count; ++i) {
av_free(vc->codebooks[i].codevectors);
- free_vlc(&vc->codebooks[i].vlc);
+ ff_free_vlc(&vc->codebooks[i].vlc);
}
av_freep(&vc->codebooks);
}
// Precalculate order of x coordinates - needed for decode
- ff_vorbis_ready_floor1_list(floor_setup->data.t1.list, floor_setup->data.t1.x_list_dim);
+ if (ff_vorbis_ready_floor1_list(vc->avccontext,
+ floor_setup->data.t1.list,
+ floor_setup->data.t1.x_list_dim)) {
+ return AVERROR_INVALIDDATA;
+ }
} else if (floor_setup->floor_type == 0) {
unsigned max_codebook_dim = 0;
int hdr_type, ret;
vc->avccontext = avccontext;
- dsputil_init(&vc->dsp, avccontext);
+ ff_dsputil_init(&vc->dsp, avccontext);
+ avpriv_float_dsp_init(&vc->fdsp, avccontext->flags & CODEC_FLAG_BITEXACT);
ff_fmt_convert_init(&vc->fmt_conv, avccontext);
if (avccontext->request_sample_fmt == AV_SAMPLE_FMT_FLT) {
avccontext->channels = vc->audio_channels;
avccontext->sample_rate = vc->audio_samplerate;
- avccontext->frame_size = FFMIN(vc->blocksize[0], vc->blocksize[1]) >> 2;
avcodec_get_frame_defaults(&vc->frame);
avccontext->coded_frame = &vc->frame;
floor1_flag[i] = 1;
if (val >= room) {
if (highroom > lowroom) {
- floor1_Y_final[i] = val - lowroom + predicted;
+ floor1_Y_final[i] = av_clip_uint16(val - lowroom + predicted);
} else {
- floor1_Y_final[i] = predicted - val + highroom - 1;
+ floor1_Y_final[i] = av_clip_uint16(predicted - val + highroom - 1);
}
} else {
if (val & 1) {
- floor1_Y_final[i] = predicted - (val + 1) / 2;
+ floor1_Y_final[i] = av_clip_uint16(predicted - (val + 1) / 2);
} else {
- floor1_Y_final[i] = predicted + val / 2;
+ floor1_Y_final[i] = av_clip_uint16(predicted + val / 2);
}
}
} else {
floor1_flag[i] = 0;
- floor1_Y_final[i] = predicted;
+ floor1_Y_final[i] = av_clip_uint16(predicted);
}
av_dlog(NULL, " Decoded floor(%d) = %u / val %u\n",
if (vqbook >= 0 && vc->codebooks[vqbook].codevectors) {
unsigned coffs;
unsigned dim = vc->codebooks[vqbook].dimensions;
- unsigned step = dim == 1 ? vr->partition_size
- : FASTDIV(vr->partition_size, dim);
+ unsigned step = FASTDIV(vr->partition_size << 1, dim << 1);
vorbis_codebook codebook = vc->codebooks[vqbook];
if (vr_type == 0) {
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
for (l = 0; l < dim; ++l)
- vec[voffs + k + l * step] += codebook.codevectors[coffs + l]; // FPMATH
+ vec[voffs + k + l * step] += codebook.codevectors[coffs + l];
}
} else if (vr_type == 1) {
voffs = voffset + j * vlen;
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
for (l = 0; l < dim; ++l, ++voffs) {
- vec[voffs]+=codebook.codevectors[coffs+l]; // FPMATH
+ vec[voffs]+=codebook.codevectors[coffs+l];
av_dlog(NULL, " pass %d offs: %d curr: %f change: %f cv offs.: %d \n",
pass, voffs, vec[voffs], codebook.codevectors[coffs+l], coffs);
if (dim == 2) {
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 2;
- vec[voffs + k ] += codebook.codevectors[coffs ]; // FPMATH
- vec[voffs + k + vlen] += codebook.codevectors[coffs + 1]; // FPMATH
+ vec[voffs + k ] += codebook.codevectors[coffs ];
+ vec[voffs + k + vlen] += codebook.codevectors[coffs + 1];
}
} else if (dim == 4) {
for (k = 0; k < step; ++k, voffs += 2) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 4;
- vec[voffs ] += codebook.codevectors[coffs ]; // FPMATH
- vec[voffs + 1 ] += codebook.codevectors[coffs + 2]; // FPMATH
- vec[voffs + vlen ] += codebook.codevectors[coffs + 1]; // FPMATH
- vec[voffs + vlen + 1] += codebook.codevectors[coffs + 3]; // FPMATH
+ vec[voffs ] += codebook.codevectors[coffs ];
+ vec[voffs + 1 ] += codebook.codevectors[coffs + 2];
+ vec[voffs + vlen ] += codebook.codevectors[coffs + 1];
+ vec[voffs + vlen + 1] += codebook.codevectors[coffs + 3];
}
} else
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
for (l = 0; l < dim; l += 2, voffs++) {
- vec[voffs ] += codebook.codevectors[coffs + l ]; // FPMATH
- vec[voffs + vlen] += codebook.codevectors[coffs + l + 1]; // FPMATH
+ vec[voffs ] += codebook.codevectors[coffs + l ];
+ vec[voffs + vlen] += codebook.codevectors[coffs + l + 1];
av_dlog(NULL, " pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n",
pass, voffset / ch + (voffs % ch) * vlen,
}
} else if (vr_type == 2) {
- voffs = voffset;
+ unsigned voffs_div = FASTDIV(voffset << 1, ch <<1);
+ unsigned voffs_mod = voffset - voffs_div * ch;
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
- for (l = 0; l < dim; ++l, ++voffs) {
- vec[voffs / ch + (voffs % ch) * vlen] += codebook.codevectors[coffs + l]; // FPMATH FIXME use if and counter instead of / and %
+ for (l = 0; l < dim; ++l) {
+ vec[voffs_div + voffs_mod * vlen] +=
+ codebook.codevectors[coffs + l];
av_dlog(NULL, " pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n",
- pass, voffset / ch + (voffs % ch) * vlen,
- vec[voffset / ch + (voffs % ch) * vlen],
+ pass, voffs_div + voffs_mod * vlen,
+ vec[voffs_div + voffs_mod * vlen],
codebook.codevectors[coffs + l], coffs, l);
+
+ if (++voffs_mod == ch) {
+ voffs_div++;
+ voffs_mod = 0;
+ }
}
}
}
}
}
-void vorbis_inverse_coupling(float *mag, float *ang, int blocksize)
+void ff_vorbis_inverse_coupling(float *mag, float *ang, int blocksize)
{
int i;
for (i = 0; i < blocksize; i++) {
blockflag = vc->modes[mode_number].blockflag;
blocksize = vc->blocksize[blockflag];
vlen = blocksize / 2;
- if (blockflag)
- skip_bits(gb, 2); // previous_window, next_window
+ if (blockflag) {
+ previous_window = get_bits(gb, 1);
+ skip_bits1(gb); // next_window
+ }
memset(ch_res_ptr, 0, sizeof(float) * vc->audio_channels * vlen); //FIXME can this be removed ?
memset(ch_floor_ptr, 0, sizeof(float) * vc->audio_channels * vlen); //FIXME can this be removed ?
ch_left -= ch;
}
+ if (ch_left > 0)
+ return AVERROR_INVALIDDATA;
+
// Inverse coupling
for (i = mapping->coupling_steps - 1; i >= 0; --i) { //warning: i has to be signed
for (j = vc->audio_channels-1;j >= 0; j--) {
ch_floor_ptr = vc->channel_floors + j * blocksize / 2;
ch_res_ptr = vc->channel_residues + res_chan[j] * blocksize / 2;
- vc->dsp.vector_fmul(ch_floor_ptr, ch_floor_ptr, ch_res_ptr, blocksize / 2);
+ vc->fdsp.vector_fmul(ch_floor_ptr, ch_floor_ptr, ch_res_ptr, blocksize / 2);
mdct->imdct_half(mdct, ch_res_ptr, ch_floor_ptr);
}
-// Overlap/add, save data for next overlapping FPMATH
+// Overlap/add, save data for next overlapping
retlen = (blocksize + vc->blocksize[previous_window]) / 4;
for (j = 0; j < vc->audio_channels; j++) {
return 0;
}
+static av_cold void vorbis_decode_flush(AVCodecContext *avccontext)
+{
+ vorbis_context *vc = avccontext->priv_data;
+
+ if (vc->saved) {
+ memset(vc->saved, 0, (vc->blocksize[1] / 4) * vc->audio_channels *
+ sizeof(*vc->saved));
+ }
+ vc->previous_window = 0;
+}
+
AVCodec ff_vorbis_decoder = {
- .name = "vorbis",
- .type = AVMEDIA_TYPE_AUDIO,
- .id = CODEC_ID_VORBIS,
- .priv_data_size = sizeof(vorbis_context),
- .init = vorbis_decode_init,
- .close = vorbis_decode_close,
- .decode = vorbis_decode_frame,
- .capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Vorbis"),
+ .name = "vorbis",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_VORBIS,
+ .priv_data_size = sizeof(vorbis_context),
+ .init = vorbis_decode_init,
+ .close = vorbis_decode_close,
+ .decode = vorbis_decode_frame,
+ .flush = vorbis_decode_flush,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Vorbis"),
.channel_layouts = ff_vorbis_channel_layouts,
- .sample_fmts = (const enum AVSampleFormat[]) {
+ .sample_fmts = (const enum AVSampleFormat[]) {
AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE
},
};
-
projects / ffmpeg / blobdiff