Enable pcm_s32le audio decoding.

chromecast/public/media/decoder_config.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROMECAST_PUBLIC_MEDIA_DECODER_CONFIG_H_
 #define CHROMECAST_PUBLIC_MEDIA_DECODER_CONFIG_H_
 
 #include <stdint.h>
 #include <vector>
 
@@ skipping 27 matching lines @@
 
 enum SampleFormat {
   kUnknownSampleFormat = 0,
   kSampleFormatU8,         // Unsigned 8-bit w/ bias of 128.
   kSampleFormatS16,        // Signed 16-bit.
   kSampleFormatS32,        // Signed 32-bit.
   kSampleFormatF32,        // Float 32-bit.
   kSampleFormatPlanarS16,  // Signed 16-bit planar.
   kSampleFormatPlanarF32,  // Float 32-bit planar.
   kSampleFormatPlanarS32,  // Signed 32-bit planar.
+  kSampleFormatS24,        // Signed 24-bit.
 
   kSampleFormatMin = kUnknownSampleFormat,
-  kSampleFormatMax = kSampleFormatPlanarS32,
+  kSampleFormatMax = kSampleFormatS24,
 };
 
 enum VideoCodec {
   kVideoCodecUnknown = 0,
   kCodecH264,
   kCodecVC1,
   kCodecMPEG2,
   kCodecMPEG4,
   kCodecTheora,
   kCodecVP8,
@@ skipping 117 matching lines @@
 inline bool IsValidConfig(const VideoConfig& config) {
   return config.codec >= kVideoCodecMin &&
       config.codec <= kVideoCodecMax &&
       config.codec != kVideoCodecUnknown;
 }
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_PUBLIC_MEDIA_DECODER_CONFIG_H_