[SCM] libav/experimental: Implement a -pix_fmts option for listing all the supported pixel formats.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 3f7bb426078aa9fbd8289459d0adcaea22ab18a2
Author: Stefano Sabatini <stefano.sabatini-lala at poste.it>
Date:   Mon Dec 21 21:53:03 2009 +0000

    Implement a -pix_fmts option for listing all the supported pixel
    formats.
    
    Originally committed as revision 20909 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/cmdutils.c b/cmdutils.c
index 68ef726..176a98d 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -582,6 +582,11 @@ void show_filters(void)
 #endif
 }
 
+void show_pix_fmts(void)
+{
+    list_fmts(avcodec_pix_fmt_string, PIX_FMT_NB);
+}
+
 int read_yesno(void)
 {
     int c = getchar();
diff --git a/cmdutils.h b/cmdutils.h
index 40bdea3..d2d722b 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -184,6 +184,12 @@ void show_bsfs(void);
 void show_protocols(void);
 
 /**
+ * Prints a listing containing all the pixel formats supported by the
+ * program.
+ */
+void show_pix_fmts(void);
+
+/**
  * Returns a positive value if reads from standard input a line
  * starting with [yY], otherwise returns 0.
  */
diff --git a/cmdutils_common_opts.h b/cmdutils_common_opts.h
index 0a456bc..da30997 100644
--- a/cmdutils_common_opts.h
+++ b/cmdutils_common_opts.h
@@ -9,4 +9,5 @@
     { "bsfs"     , OPT_EXIT, {(void*)show_bsfs     }, "show available bit stream filters" },
     { "protocols", OPT_EXIT, {(void*)show_protocols}, "show available protocols" },
     { "filters",   OPT_EXIT, {(void*)show_filters  }, "show available filters" },
+    { "pix_fmts" , OPT_EXIT, {(void*)show_pix_fmts }, "show available pixel formats" },
     { "loglevel", HAS_ARG | OPT_FUNC2, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },
diff --git a/doc/fftools-common-opts.texi b/doc/fftools-common-opts.texi
index 60b0500..ce8a4d6 100644
--- a/doc/fftools-common-opts.texi
+++ b/doc/fftools-common-opts.texi
@@ -46,6 +46,9 @@ Show available protocols.
 @item -filters
 Show available libavfilter filters.
 
+ at item -pix_fmts
+Show available pixel formats.
+
 @item -loglevel @var{loglevel}
 Set the logging level used by the library.
 @var{loglevel} is a number or a string containing one of the following values:

-- 
Libav/FFmpeg packaging