From 80a07f6e47a842ca351ebec3478878204cd1d0b7 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date: Sat, 30 Jan 2010 18:50:00 +0000
Subject: [PATCH] Implement av_get_pix_fmt(), and deprecate
 avcodec_get_pix_fmt().

Originally committed as revision 21545 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/avcodec.h    |  6 +++++-
 libavcodec/imgconvert.c | 33 +++------------------------------
 libavutil/avutil.h      |  2 +-
 libavutil/pixdesc.c     | 37 +++++++++++++++++++++++++++++++++++++
 libavutil/pixdesc.h     | 13 +++++++++++++
 5 files changed, 59 insertions(+), 32 deletions(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 87d00fe2f4..e5c86fde44 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2995,6 +2995,7 @@ void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *
 const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt);
 void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
 
+#if LIBAVCODEC_VERSION_MAJOR < 53
 /**
  * Returns the pixel format corresponding to the name name.
  *
@@ -3005,8 +3006,11 @@ void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
  * then for "gray16le".
  *
  * Finally if no pixel format has been found, returns PIX_FMT_NONE.
+ *
+ * @deprecated Deprecated in favor of av_get_pix_fmt().
  */
-enum PixelFormat avcodec_get_pix_fmt(const char* name);
+attribute_deprecated enum PixelFormat avcodec_get_pix_fmt(const char* name);
+#endif
 
 /**
  * Returns a value representing the fourCC code associated to the
diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 5dc7b92ee0..de6032d5c0 100644
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -391,39 +391,12 @@ const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt)
         return av_pix_fmt_descriptors[pix_fmt].name;
 }
 
-static enum PixelFormat avcodec_get_pix_fmt_internal(const char *name)
-{
-    int i;
-
-    for (i=0; i < PIX_FMT_NB; i++)
-        if (av_pix_fmt_descriptors[i].name && !strcmp(av_pix_fmt_descriptors[i].name, name))
-            return i;
-    return PIX_FMT_NONE;
-}
-
-#if HAVE_BIGENDIAN
-#   define X_NE(be, le) be
-#else
-#   define X_NE(be, le) le
-#endif
-
+#if LIBAVCODEC_VERSION_MAJOR < 53
 enum PixelFormat avcodec_get_pix_fmt(const char *name)
 {
-    enum PixelFormat pix_fmt;
-
-    if (!strcmp(name, "rgb32"))
-        name = X_NE("argb", "bgra");
-    else if (!strcmp(name, "bgr32"))
-        name = X_NE("abgr", "rgba");
-
-    pix_fmt = avcodec_get_pix_fmt_internal(name);
-    if (pix_fmt == PIX_FMT_NONE) {
-        char name2[32];
-        snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
-        pix_fmt = avcodec_get_pix_fmt_internal(name2);
-    }
-    return pix_fmt;
+    return av_get_pix_fmt(name);
 }
+#endif
 
 void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
 {
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 01067e750e..0655dc2e68 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -40,7 +40,7 @@
 #define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
 
 #define LIBAVUTIL_VERSION_MAJOR 50
-#define LIBAVUTIL_VERSION_MINOR  7
+#define LIBAVUTIL_VERSION_MINOR  8
 #define LIBAVUTIL_VERSION_MICRO  0
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index 972da4578f..837927ba7d 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -654,6 +654,43 @@ const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
     },
 };
 
+static enum PixelFormat get_pix_fmt_internal(const char *name)
+{
+    enum PixelFormat pix_fmt;
+
+    for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
+        if (av_pix_fmt_descriptors[pix_fmt].name &&
+            !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
+            return pix_fmt;
+
+    return PIX_FMT_NONE;
+}
+
+#if HAVE_BIGENDIAN
+#   define X_NE(be, le) be
+#else
+#   define X_NE(be, le) le
+#endif
+
+enum PixelFormat av_get_pix_fmt(const char *name)
+{
+    enum PixelFormat pix_fmt;
+
+    if (!strcmp(name, "rgb32"))
+        name = X_NE("argb", "bgra");
+    else if (!strcmp(name, "bgr32"))
+        name = X_NE("abgr", "rgba");
+
+    pix_fmt = get_pix_fmt_internal(name);
+    if (pix_fmt == PIX_FMT_NONE) {
+        char name2[32];
+
+        snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
+        pix_fmt = get_pix_fmt_internal(name2);
+    }
+    return pix_fmt;
+}
+
 int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
 {
     int c, bits = 0;
diff --git a/libavutil/pixdesc.h b/libavutil/pixdesc.h
index c8743487c9..1fa571f405 100644
--- a/libavutil/pixdesc.h
+++ b/libavutil/pixdesc.h
@@ -202,6 +202,19 @@ static inline void write_line(const uint16_t *src, uint8_t *data[4], const int l
     }
 }
 
+/**
+ * Returns the pixel format corresponding to name.
+ *
+ * If there is no pixel format with name name, then looks for a
+ * pixel format with the name corresponding to the native endian
+ * format of name.
+ * For example in a little-endian system, first looks for "gray16",
+ * then for "gray16le".
+ *
+ * Finally if no pixel format has been found, returns PIX_FMT_NONE.
+ */
+enum PixelFormat av_get_pix_fmt(const char *name);
+
 /**
  * Returns the number of bits per pixel used by the pixel format
  * described by pixdesc.