* audio conversion
* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
*/
#include "libavutil/avstring.h"
+#include "libavutil/common.h"
#include "libavutil/libm.h"
-#include "libavcore/samplefmt.h"
+#include "libavutil/samplefmt.h"
#include "avcodec.h"
#include "audioconvert.h"
-#if FF_API_OLD_SAMPLE_FMT
-const char *avcodec_get_sample_fmt_name(int sample_fmt)
-{
- return av_get_sample_fmt_name(sample_fmt);
-}
-
-enum AVSampleFormat avcodec_get_sample_fmt(const char* name)
-{
- return av_get_sample_fmt(name);
-}
-
-void avcodec_sample_fmt_string (char *buf, int buf_size, int sample_fmt)
-{
- av_get_sample_fmt_string(buf, buf_size, sample_fmt);
-}
-#endif
-
-int64_t avcodec_guess_channel_layout(int nb_channels, enum CodecID codec_id, const char *fmt_name)
-{
- switch(nb_channels) {
- case 1: return CH_LAYOUT_MONO;
- case 2: return CH_LAYOUT_STEREO;
- case 3: return CH_LAYOUT_SURROUND;
- case 4: return CH_LAYOUT_QUAD;
- case 5: return CH_LAYOUT_5POINT0;
- case 6: return CH_LAYOUT_5POINT1;
- case 8: return CH_LAYOUT_7POINT1;
- default: return 0;
- }
-}
-
-#if FF_API_OLD_AUDIOCONVERT
-int64_t avcodec_get_channel_layout(const char *name)
-{
- return av_get_channel_layout(name);
-}
-
-void avcodec_get_channel_layout_string(char *buf, int buf_size, int nb_channels, int64_t channel_layout)
-{
- av_get_channel_layout_string(buf, buf_size, nb_channels, channel_layout);
-}
-
-int avcodec_channel_layout_num_channels(int64_t channel_layout)
-{
- return av_get_channel_layout_nb_channels(channel_layout);
-}
-#endif
-
struct AVAudioConvert {
int in_channels, out_channels;
int fmt_pair;
else CONV(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_S32, (*(const int32_t*)pi>>24) + 0x80)
else CONV(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S32, *(const int32_t*)pi>>16)
else CONV(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S32, *(const int32_t*)pi)
- else CONV(AV_SAMPLE_FMT_FLT, float , AV_SAMPLE_FMT_S32, *(const int32_t*)pi*(1.0 / (1<<31)))
- else CONV(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_S32, *(const int32_t*)pi*(1.0 / (1<<31)))
+ else CONV(AV_SAMPLE_FMT_FLT, float , AV_SAMPLE_FMT_S32, *(const int32_t*)pi*(1.0 / (1U<<31)))
+ else CONV(AV_SAMPLE_FMT_DBL, double , AV_SAMPLE_FMT_S32, *(const int32_t*)pi*(1.0 / (1U<<31)))
else CONV(AV_SAMPLE_FMT_U8 , uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8( lrintf(*(const float*)pi * (1<<7)) + 0x80))
else CONV(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16( lrintf(*(const float*)pi * (1<<15))))
else CONV(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float*)pi * (1U<<31))))