Implement functions:

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

4 files changed, 92 insertions, 1 deletions

diff --git a/libavcore/Makefile b/libavcore/Makefile
index 97d973fa28..037f55ebf7 100644
--- a/libavcore/Makefile
+++ b/libavcore/Makefile
@@ -10,6 +10,7 @@ HEADERS = avcore.h                                                      \
 
 OBJS = imgutils.o                                                       \
        parseutils.o                                                     \
+       samplefmt.o                                                      \
        utils.o                                                          \
 
 include $(SUBDIR)../subdir.mak
diff --git a/libavcore/avcore.h b/libavcore/avcore.h
index 5870817f23..dd1cd75f02 100644
--- a/libavcore/avcore.h
+++ b/libavcore/avcore.h
@@ -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, \
diff --git a/libavcore/samplefmt.c b/libavcore/samplefmt.c
new file mode 100644
index 0000000000..49ab8296f7
--- /dev/null
+++ b/libavcore/samplefmt.c
@@ -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;
+}
diff --git a/libavcore/samplefmt.h b/libavcore/samplefmt.h
index 163246b35f..482bb48471 100644
--- a/libavcore/samplefmt.h
+++ b/libavcore/samplefmt.h
@@ -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 */