mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-23 11:19:55 +00:00
46a47077ee
* qatar/master: configure: add functions for testing code fragments af_amix: avoid spurious EAGAIN. af_amix: return AVERROR(EAGAIN) when request_frame didn't produce output. af_amix: only consider negative return codes as errors. avconv: use only meaningful timestamps in start time check. avconv: fix the check for -ss as an output option. mss3: add forgotten 'static' qualifier for private table lavc: options: add planar names for request_sample_fmt flacdec: add planar output support flvdec: Treat all nellymoser versions as the same codec Conflicts: ffmpeg.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2012 Mans Rullgard <mans@mansr.com>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include "libavutil/avutil.h"
|
|
|
|
#undef FUNC
|
|
#undef FSUF
|
|
#undef sample
|
|
#undef sample_type
|
|
#undef OUT
|
|
#undef S
|
|
|
|
#if SAMPLE_SIZE == 32
|
|
# define sample_type int32_t
|
|
#else
|
|
# define sample_type int16_t
|
|
#endif
|
|
|
|
#if PLANAR
|
|
# define FSUF AV_JOIN(SAMPLE_SIZE, p)
|
|
# define sample sample_type *
|
|
# define OUT(n) n
|
|
# define S(s, c, i) (s[c][i])
|
|
#else
|
|
# define FSUF SAMPLE_SIZE
|
|
# define sample sample_type
|
|
# define OUT(n) n[0]
|
|
# define S(s, c, i) (*s++)
|
|
#endif
|
|
|
|
#define FUNC(n) AV_JOIN(n ## _, FSUF)
|
|
|
|
static void FUNC(flac_decorrelate_indep_c)(uint8_t **out, int32_t **in,
|
|
int channels, int len, int shift)
|
|
{
|
|
sample *samples = (sample *) OUT(out);
|
|
int i, j;
|
|
|
|
for (j = 0; j < len; j++)
|
|
for (i = 0; i < channels; i++)
|
|
S(samples, i, j) = in[i][j] << shift;
|
|
}
|
|
|
|
static void FUNC(flac_decorrelate_ls_c)(uint8_t **out, int32_t **in,
|
|
int channels, int len, int shift)
|
|
{
|
|
sample *samples = (sample *) OUT(out);
|
|
int i;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
int a = in[0][i];
|
|
int b = in[1][i];
|
|
S(samples, 0, i) = a << shift;
|
|
S(samples, 1, i) = (a - b) << shift;
|
|
}
|
|
}
|
|
|
|
static void FUNC(flac_decorrelate_rs_c)(uint8_t **out, int32_t **in,
|
|
int channels, int len, int shift)
|
|
{
|
|
sample *samples = (sample *) OUT(out);
|
|
int i;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
int a = in[0][i];
|
|
int b = in[1][i];
|
|
S(samples, 0, i) = (a + b) << shift;
|
|
S(samples, 1, i) = b << shift;
|
|
}
|
|
}
|
|
|
|
static void FUNC(flac_decorrelate_ms_c)(uint8_t **out, int32_t **in,
|
|
int channels, int len, int shift)
|
|
{
|
|
sample *samples = (sample *) OUT(out);
|
|
int i;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
int a = in[0][i];
|
|
int b = in[1][i];
|
|
a -= b >> 1;
|
|
S(samples, 0, i) = (a + b) << shift;
|
|
S(samples, 1, i) = a << shift;
|
|
}
|
|
}
|