Added logging calls to FFmpegDemuxer.

media/base/sample_format.cc

Index: media/base/sample_format.cc
diff --git a/media/base/sample_format.cc b/media/base/sample_format.cc
index 3fdcf1018e03475a20ad0e38e2ecc6a041d8ad49..5fbb02385ac055671e20f197a2f6cd6b34eb3345 100644
--- a/media/base/sample_format.cc
+++ b/media/base/sample_format.cc
@@ -29,4 +29,28 @@ int SampleFormatToBytesPerChannel(SampleFormat sample_format) {
   return 0;
 }
 
+const char* SampleFormatToString(SampleFormat sample_format) {
+  switch(sample_format) {
+    case kUnknownSampleFormat:
+      return "UNKNOWN_SAMPLE_FORMAT";

[DaleCurtis, 2013/08/05 22:16:54]

Is this the style you want? Not say, "Unknown", "8-bit unsigned", "32-bit
float", etc. 

[Ty Overby, 2013/08/05 22:23:29]

I like yours more.

Done.

+    case kSampleFormatU8:
+      return "U8";
+    case kSampleFormatS16:
+      return "S16";
+    case kSampleFormatS32:
+      return "S32";
+    case kSampleFormatF32:
+      return "F32";
+    case kSampleFormatPlanarS16:
+      return "PLANAR S16";
+    case kSampleFormatPlanarF32:
+      return "PLANAR F32";
+    case kSampleFormatMax:

[DaleCurtis, 2013/08/05 22:16:54]

Just break here and rely on the NOTREACHED() below.

[Ty Overby, 2013/08/05 22:23:29]

Done.

+      NOTREACHED() << "Invalid sample format provided: " << sample_format;
+      break;
+  }
+  NOTREACHED() << "Invalid sample format provided: " << sample_format;
+  return "";
+}
+
 }  // namespace media