Load CMA backend from shared library

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>
 
-#include "chromecast/public/media/stream_id.h"
+#include "stream_id.h"
 
 namespace chromecast {
 namespace media {
 
 // Maximum audio bytes per sample.
 static const int kMaxBytesPerSample = 4;
 
 // Maximum audio sampling rate.
 static const int kMaxSampleRate = 192000;
 
@@ skipping 69 matching lines @@
 struct AudioConfig {
   AudioConfig()
       : id(kPrimary),
         codec(kAudioCodecUnknown),
         sample_format(kUnknownSampleFormat),
         bytes_per_channel(0),
         channel_number(0),
         samples_per_second(0),
         extra_data(nullptr),
         extra_data_size(0),
         is_encrypted(false) {}

[byungchul, 2015/07/27 18:22:23]

does chorimum allow this inline ctor? It looks a complex struct.

[halliwell, 2015/07/28 02:19:36]

it does.  This has been in for a while now.

 
   // Stream id.
   StreamId id;
   // Audio codec.
   AudioCodec codec;
   // The format of each audio sample.
   SampleFormat sample_format;
   // Number of bytes in each channel.
   int bytes_per_channel;
   // Number of channels in this audio stream.
@@ skipping 14 matching lines @@
 // create a new object to reset the configuration and use IsValidConfig() to
 // determine if the configuration is still valid or not.
 struct VideoConfig {
   VideoConfig()
     : id(kPrimary),
       codec(kVideoCodecUnknown),
       profile(kVideoProfileUnknown),
       additional_config(nullptr),
       extra_data(nullptr),
       extra_data_size(0),
       is_encrypted(false) {}

[byungchul, 2015/07/27 18:22:23]

ditto

[halliwell, 2015/07/28 02:19:36]

ditto! :)

 
   // Stream Id.
   StreamId id;
   // Video codec.
   VideoCodec codec;
   // Video codec profile.
   VideoProfile profile;
   // Both |additional_config| and |extra_data| are the pointers to the object
   // memory that are allocated outside this structure. Consumers of the
   // structure should make a copy if it is expected to be used beyond the
@@ skipping 28 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_