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Implement functions:

Browse Source 
av_get_sample_fmt_name()
av_get_sample_fmt()
av_get_sample_fmt_string()

in libavcore, and deprecate the corresponding libavcodec/audioconvert.h functions:
avcodec_get_sample_fmt_name()
avcodec_get_sample_fmt()
avcodec_sample_fmt_string()

Originally committed as revision 25653 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-11-02 22:08:02 +00:00
parent 262d1c5d22
commit d63e456a2a
8 changed files with 117 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
doc/APIchanges
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@ -13,6 +13,16 @@ libavutil: 2009-03-08
API changes, most recent first:
2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
Add sample format functions in libavcore/samplefmt.h:
av_get_sample_fmt_name(),
av_get_sample_fmt(),
av_get_sample_fmt_string(),
and deprecate the corresponding libavcodec/audioconvert.h functions:
avcodec_get_sample_fmt_name(),
avcodec_get_sample_fmt(),
avcodec_sample_fmt_string().
2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
SampleFormat.

36
libavcodec/audioconvert.c
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@ -27,50 +27,26 @@
#include "libavutil/avstring.h"
#include "libavutil/libm.h"
#include "libavcore/samplefmt.h"
#include "avcodec.h"
#include "audioconvert.h"
typedef struct SampleFmtInfo {
const char *name;
int bits;
} SampleFmtInfo;
/** this table gives more information about formats */
static const SampleFmtInfo sample_fmt_info[SAMPLE_FMT_NB] = {
[SAMPLE_FMT_U8] = { .name = "u8", .bits = 8 },
[SAMPLE_FMT_S16] = { .name = "s16", .bits = 16 },
[SAMPLE_FMT_S32] = { .name = "s32", .bits = 32 },
[SAMPLE_FMT_FLT] = { .name = "flt", .bits = 32 },
[SAMPLE_FMT_DBL] = { .name = "dbl", .bits = 64 },
};
#if FF_API_OLD_SAMPLE_FMT
const char *avcodec_get_sample_fmt_name(int sample_fmt)
{
if (sample_fmt < 0 || sample_fmt >= SAMPLE_FMT_NB)
return NULL;
return sample_fmt_info[sample_fmt].name;
return av_get_sample_fmt_name(sample_fmt);
}
enum SampleFormat avcodec_get_sample_fmt(const char* name)
{
int i;
for (i=0; i < SAMPLE_FMT_NB; i++)
if (!strcmp(sample_fmt_info[i].name, name))
return i;
return SAMPLE_FMT_NONE;
return av_get_sample_fmt(name);
}
void avcodec_sample_fmt_string (char *buf, int buf_size, int sample_fmt)
{
/* print header */
if (sample_fmt < 0)
snprintf (buf, buf_size, "name " " depth");
else if (sample_fmt < SAMPLE_FMT_NB) {
SampleFmtInfo info= sample_fmt_info[sample_fmt];
snprintf (buf, buf_size, "%-6s" " %2d ", info.name, info.bits);
}
av_get_sample_fmt_string(buf, buf_size, sample_fmt);
}
#endif
static const char* const channel_names[]={
"FL", "FR", "FC", "LFE", "BL", "BR", "FLC", "FRC",

19
libavcodec/audioconvert.h
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@ -32,28 +32,25 @@
#include "libavutil/cpu.h"
#include "avcodec.h"
#if FF_API_OLD_SAMPLE_FMT
/**
* Generate string corresponding to the sample format with
* number sample_fmt, or a header if sample_fmt is negative.
*
* @param[in] buf the buffer where to write the string
* @param[in] buf_size the size of buf
* @param[in] sample_fmt the number of the sample format to print the corresponding info string, or
* a negative value to print the corresponding header.
* Meaningful values for obtaining a sample format info vary from 0 to SAMPLE_FMT_NB -1.
* @deprecated Use av_get_sample_fmt_string() instead.
*/
attribute_deprecated
void avcodec_sample_fmt_string(char *buf, int buf_size, int sample_fmt);
/**
* @return NULL on error
* @deprecated Use av_get_sample_fmt_name() instead.
*/
attribute_deprecated
const char *avcodec_get_sample_fmt_name(int sample_fmt);
/**
* @return SAMPLE_FMT_NONE on error
* @deprecated Use av_get_sample_fmt() instead.
*/
attribute_deprecated
enum SampleFormat avcodec_get_sample_fmt(const char* name);
#endif
/**
* @return NULL on error

2
libavcodec/avcodec.h
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@ -33,7 +33,7 @@
#define LIBAVCODEC_VERSION_MAJOR 52
#define LIBAVCODEC_VERSION_MINOR 94
#define LIBAVCODEC_VERSION_MICRO 1
#define LIBAVCODEC_VERSION_MICRO 2
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \

1
libavcore/Makefile
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@ -10,6 +10,7 @@ HEADERS = avcore.h \
OBJS = imgutils.o \
parseutils.o \
samplefmt.o \
utils.o \
include $(SUBDIR)../subdir.mak

2
libavcore/avcore.h
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@ -27,7 +27,7 @@
#include "libavutil/avutil.h"
#define LIBAVCORE_VERSION_MAJOR 0
#define LIBAVCORE_VERSION_MINOR 10
#define LIBAVCORE_VERSION_MINOR 11
#define LIBAVCORE_VERSION_MICRO 0
#define LIBAVCORE_VERSION_INT AV_VERSION_INT(LIBAVCORE_VERSION_MAJOR, \

64
libavcore/samplefmt.c Normal file
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@ -0,0 +1,64 @@
/*
* 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 "avcore.h"
#include "samplefmt.h"
typedef struct SampleFmtInfo {
const char *name;
int bits;
} SampleFmtInfo;
/** this table gives more information about formats */
static const SampleFmtInfo sample_fmt_info[AV_SAMPLE_FMT_NB] = {
[AV_SAMPLE_FMT_U8] = { .name = "u8", .bits = 8 },
[AV_SAMPLE_FMT_S16] = { .name = "s16", .bits = 16 },
[AV_SAMPLE_FMT_S32] = { .name = "s32", .bits = 32 },
[AV_SAMPLE_FMT_FLT] = { .name = "flt", .bits = 32 },
[AV_SAMPLE_FMT_DBL] = { .name = "dbl", .bits = 64 },
};
const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
{
if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
return NULL;
return sample_fmt_info[sample_fmt].name;
}
enum AVSampleFormat av_get_sample_fmt(const char *name)
{
int i;
for (i = 0; i < AV_SAMPLE_FMT_NB; i++)
if (!strcmp(sample_fmt_info[i].name, name))
return i;
return AV_SAMPLE_FMT_NONE;
}
char *av_get_sample_fmt_string (char *buf, int buf_size, enum AVSampleFormat sample_fmt)
{
/* print header */
if (sample_fmt < 0)
snprintf(buf, buf_size, "name " " depth");
else if (sample_fmt < AV_SAMPLE_FMT_NB) {
SampleFmtInfo info = sample_fmt_info[sample_fmt];
snprintf (buf, buf_size, "%-6s" " %2d ", info.name, info.bits);
}
return buf;
}

26
libavcore/samplefmt.h
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@ -32,4 +32,30 @@ enum AVSampleFormat {
AV_SAMPLE_FMT_NB ///< Number of sample formats. DO NOT USE if dynamically linking to libavcore
};
/**
* Return the name of sample_fmt, or NULL if sample_fmt is not
* recognized.
*/
const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
/**
* Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE
* on error.
*/
enum AVSampleFormat av_get_sample_fmt(const char *name);
/**
* Generate a string corresponding to the sample format with
* sample_fmt, or a header if sample_fmt is negative.
*
* @param buf the buffer where to write the string
* @param buf_size the size of buf
* @param sample_fmt the number of the sample format to print the
* corresponding info string, or a negative value to print the
* corresponding header.
* @return the pointer to the filled buffer or NULL if sample_fmt is
* unknown or in case of other errors
*/
char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
#endif /* AVCORE_SAMPLEFMT_H */