ffmpeg/libavcodec/flacdsp.c

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/*
* Copyright (c) 2012 Mans Rullgard <mans@mansr.com>
*
Merge remote-tracking branch 'qatar/master' * qatar/master: (29 commits) lavfi: reclassify showfiltfmts as a TESTPROG graph2dot: fix printf format specifier swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32. vp8: loopfilter >=sse2 functions need aligned stack on x86-32. amr: remove shift out of the AMR_BIT() macro. dsputilenc: group yasm and inline asm function pointer assignment. mov: use forward declaration of a function instead of a table. Clarify Doxygen comment for FF_API_* #defines. configure: simplify get_version() Create version.h headers for libraries that lack them gitignore: Use full path instead of relative path to specify patterns mpegvideo: remove VLAs Add XTEA encryption support in libavutil Add Blowfish encryption support in libavutil eval: Add the isinf() function and tests for it flacdec: move lpc filter to flacdsp flacdec: split off channel decorrelation as flacdsp avplay: Add an option for not limiting the input buffer size FATE: add a test for WMA cover art. FATE: add a test for apetag cover art ... Conflicts: .gitignore configure ffplay.c libavcodec/Makefile libavcodec/error_resilience.c libavcodec/mpegvideo.c libavcodec/ratecontrol.c libavdevice/avdevice.h libavfilter/Makefile libavfilter/filtfmts.c libavfilter/version.h libavformat/mov.c libavformat/version.h libavutil/Makefile libavutil/avutil.h libavutil/version.h libswscale/swscale.h libswscale/x86/swscale_mmx.c tests/fate/libavutil.mak tests/lavfi-regression.sh tools/graph2dot.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-04 18:39:50 +00:00
* This file is part of FFmpeg.
*
Merge remote-tracking branch 'qatar/master' * qatar/master: (29 commits) lavfi: reclassify showfiltfmts as a TESTPROG graph2dot: fix printf format specifier swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32. vp8: loopfilter >=sse2 functions need aligned stack on x86-32. amr: remove shift out of the AMR_BIT() macro. dsputilenc: group yasm and inline asm function pointer assignment. mov: use forward declaration of a function instead of a table. Clarify Doxygen comment for FF_API_* #defines. configure: simplify get_version() Create version.h headers for libraries that lack them gitignore: Use full path instead of relative path to specify patterns mpegvideo: remove VLAs Add XTEA encryption support in libavutil Add Blowfish encryption support in libavutil eval: Add the isinf() function and tests for it flacdec: move lpc filter to flacdsp flacdec: split off channel decorrelation as flacdsp avplay: Add an option for not limiting the input buffer size FATE: add a test for WMA cover art. FATE: add a test for apetag cover art ... Conflicts: .gitignore configure ffplay.c libavcodec/Makefile libavcodec/error_resilience.c libavcodec/mpegvideo.c libavcodec/ratecontrol.c libavdevice/avdevice.h libavfilter/Makefile libavfilter/filtfmts.c libavfilter/version.h libavformat/mov.c libavformat/version.h libavutil/Makefile libavutil/avutil.h libavutil/version.h libswscale/swscale.h libswscale/x86/swscale_mmx.c tests/fate/libavutil.mak tests/lavfi-regression.sh tools/graph2dot.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-04 18:39:50 +00:00
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
Merge remote-tracking branch 'qatar/master' * qatar/master: (29 commits) lavfi: reclassify showfiltfmts as a TESTPROG graph2dot: fix printf format specifier swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32. vp8: loopfilter >=sse2 functions need aligned stack on x86-32. amr: remove shift out of the AMR_BIT() macro. dsputilenc: group yasm and inline asm function pointer assignment. mov: use forward declaration of a function instead of a table. Clarify Doxygen comment for FF_API_* #defines. configure: simplify get_version() Create version.h headers for libraries that lack them gitignore: Use full path instead of relative path to specify patterns mpegvideo: remove VLAs Add XTEA encryption support in libavutil Add Blowfish encryption support in libavutil eval: Add the isinf() function and tests for it flacdec: move lpc filter to flacdsp flacdec: split off channel decorrelation as flacdsp avplay: Add an option for not limiting the input buffer size FATE: add a test for WMA cover art. FATE: add a test for apetag cover art ... Conflicts: .gitignore configure ffplay.c libavcodec/Makefile libavcodec/error_resilience.c libavcodec/mpegvideo.c libavcodec/ratecontrol.c libavdevice/avdevice.h libavfilter/Makefile libavfilter/filtfmts.c libavfilter/version.h libavformat/mov.c libavformat/version.h libavutil/Makefile libavutil/avutil.h libavutil/version.h libswscale/swscale.h libswscale/x86/swscale_mmx.c tests/fate/libavutil.mak tests/lavfi-regression.sh tools/graph2dot.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-04 18:39:50 +00:00
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
Merge remote-tracking branch 'qatar/master' * qatar/master: (29 commits) lavfi: reclassify showfiltfmts as a TESTPROG graph2dot: fix printf format specifier swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32. vp8: loopfilter >=sse2 functions need aligned stack on x86-32. amr: remove shift out of the AMR_BIT() macro. dsputilenc: group yasm and inline asm function pointer assignment. mov: use forward declaration of a function instead of a table. Clarify Doxygen comment for FF_API_* #defines. configure: simplify get_version() Create version.h headers for libraries that lack them gitignore: Use full path instead of relative path to specify patterns mpegvideo: remove VLAs Add XTEA encryption support in libavutil Add Blowfish encryption support in libavutil eval: Add the isinf() function and tests for it flacdec: move lpc filter to flacdsp flacdec: split off channel decorrelation as flacdsp avplay: Add an option for not limiting the input buffer size FATE: add a test for WMA cover art. FATE: add a test for apetag cover art ... Conflicts: .gitignore configure ffplay.c libavcodec/Makefile libavcodec/error_resilience.c libavcodec/mpegvideo.c libavcodec/ratecontrol.c libavdevice/avdevice.h libavfilter/Makefile libavfilter/filtfmts.c libavfilter/version.h libavformat/mov.c libavformat/version.h libavutil/Makefile libavutil/avutil.h libavutil/version.h libswscale/swscale.h libswscale/x86/swscale_mmx.c tests/fate/libavutil.mak tests/lavfi-regression.sh tools/graph2dot.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-04 18:39:50 +00:00
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavutil/samplefmt.h"
#include "flacdsp.h"
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#include "config.h"
#define SAMPLE_SIZE 16
#define PLANAR 0
#include "flacdsp_template.c"
#include "flacdsp_lpc_template.c"
#undef PLANAR
#define PLANAR 1
#include "flacdsp_template.c"
#undef SAMPLE_SIZE
#undef PLANAR
#define SAMPLE_SIZE 32
#define PLANAR 0
#include "flacdsp_template.c"
#include "flacdsp_lpc_template.c"
#undef PLANAR
#define PLANAR 1
#include "flacdsp_template.c"
static void flac_lpc_16_c(int32_t *decoded, const int coeffs[32],
int pred_order, int qlevel, int len)
{
int i, j;
for (i = pred_order; i < len - 1; i += 2, decoded += 2) {
int c = coeffs[0];
int d = decoded[0];
int s0 = 0, s1 = 0;
for (j = 1; j < pred_order; j++) {
s0 += c*d;
d = decoded[j];
s1 += c*d;
c = coeffs[j];
}
s0 += c*d;
d = decoded[j] += s0 >> qlevel;
s1 += c*d;
decoded[j + 1] += s1 >> qlevel;
}
if (i < len) {
int sum = 0;
for (j = 0; j < pred_order; j++)
sum += coeffs[j] * decoded[j];
decoded[j] += sum >> qlevel;
}
}
static void flac_lpc_32_c(int32_t *decoded, const int coeffs[32],
int pred_order, int qlevel, int len)
{
int i, j;
for (i = pred_order; i < len; i++, decoded++) {
int64_t sum = 0;
for (j = 0; j < pred_order; j++)
sum += (int64_t)coeffs[j] * decoded[j];
decoded[j] += sum >> qlevel;
}
}
av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt,
int bps)
{
if (bps > 16) {
c->lpc = flac_lpc_32_c;
c->lpc_encode = flac_lpc_encode_c_32;
} else {
c->lpc = flac_lpc_16_c;
c->lpc_encode = flac_lpc_encode_c_16;
}
switch (fmt) {
case AV_SAMPLE_FMT_S32:
c->decorrelate[0] = flac_decorrelate_indep_c_32;
c->decorrelate[1] = flac_decorrelate_ls_c_32;
c->decorrelate[2] = flac_decorrelate_rs_c_32;
c->decorrelate[3] = flac_decorrelate_ms_c_32;
break;
case AV_SAMPLE_FMT_S32P:
c->decorrelate[0] = flac_decorrelate_indep_c_32p;
c->decorrelate[1] = flac_decorrelate_ls_c_32p;
c->decorrelate[2] = flac_decorrelate_rs_c_32p;
c->decorrelate[3] = flac_decorrelate_ms_c_32p;
break;
case AV_SAMPLE_FMT_S16:
c->decorrelate[0] = flac_decorrelate_indep_c_16;
c->decorrelate[1] = flac_decorrelate_ls_c_16;
c->decorrelate[2] = flac_decorrelate_rs_c_16;
c->decorrelate[3] = flac_decorrelate_ms_c_16;
break;
case AV_SAMPLE_FMT_S16P:
c->decorrelate[0] = flac_decorrelate_indep_c_16p;
c->decorrelate[1] = flac_decorrelate_ls_c_16p;
c->decorrelate[2] = flac_decorrelate_rs_c_16p;
c->decorrelate[3] = flac_decorrelate_ms_c_16p;
break;
}
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if (ARCH_ARM)
ff_flacdsp_init_arm(c, fmt, bps);
}