media config: expand is_encrypted to a struct.

chromecast/common/media/cma_param_traits.cc

Index: chromecast/common/media/cma_param_traits.cc
diff --git a/chromecast/common/media/cma_param_traits.cc b/chromecast/common/media/cma_param_traits.cc
index f27043db3f96f2aeb1b54339db860c2577f00cad..7ad8895a116dfc4927b35da9a5f55bc023903190 100644
--- a/chromecast/common/media/cma_param_traits.cc
+++ b/chromecast/common/media/cma_param_traits.cc
@@ -12,6 +12,7 @@
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/base/audio_decoder_config.h"
+#include "media/base/encryption_scheme.h"
 #include "media/base/video_decoder_config.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 
@@ -29,6 +30,16 @@ IPC_ENUM_TRAITS_MAX_VALUE(media::VideoPixelFormat, media::PIXEL_FORMAT_MAX)
 
 namespace IPC {
 
+template <>
+struct ParamTraits<media::EncryptionScheme::PatternSpec> {
+  typedef media::EncryptionScheme::PatternSpec param_type;
+  static void Write(base::Pickle* m, const param_type& p);
+  static bool Read(const base::Pickle* m, base::PickleIterator* iter,
+                   param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+
 void ParamTraits<media::AudioDecoderConfig>::Write(
     base::Pickle* m,
     const media::AudioDecoderConfig& p) {
@@ -36,7 +47,7 @@ void ParamTraits<media::AudioDecoderConfig>::Write(
   WriteParam(m, p.sample_format());
   WriteParam(m, p.channel_layout());
   WriteParam(m, p.samples_per_second());
-  WriteParam(m, p.is_encrypted());
+  WriteParam(m, p.encryption_scheme());
   WriteParam(m, p.extra_data());
 }
 
@@ -48,15 +59,17 @@ bool ParamTraits<media::AudioDecoderConfig>::Read(
   media::SampleFormat sample_format;
   media::ChannelLayout channel_layout;
   int samples_per_second;
-  bool is_encrypted;
+  media::EncryptionScheme encryption_scheme;
   std::vector<uint8_t> extra_data;
   if (!ReadParam(m, iter, &codec) || !ReadParam(m, iter, &sample_format) ||
       !ReadParam(m, iter, &channel_layout) ||
       !ReadParam(m, iter, &samples_per_second) ||
-      !ReadParam(m, iter, &is_encrypted) || !ReadParam(m, iter, &extra_data))
+      !ReadParam(m, iter, &encryption_scheme) ||
+      !ReadParam(m, iter, &extra_data))
     return false;
   *r = media::AudioDecoderConfig(codec, sample_format, channel_layout,
-                                 samples_per_second, extra_data, is_encrypted);
+                                 samples_per_second, extra_data,
+                                 encryption_scheme);
   return true;
 }
 
@@ -75,7 +88,7 @@ void ParamTraits<media::VideoDecoderConfig>::Write(
   WriteParam(m, p.coded_size());
   WriteParam(m, p.visible_rect());
   WriteParam(m, p.natural_size());
-  WriteParam(m, p.is_encrypted());
+  WriteParam(m, p.encryption_scheme());
   WriteParam(m, p.extra_data());
 }
 
@@ -90,17 +103,18 @@ bool ParamTraits<media::VideoDecoderConfig>::Read(
   gfx::Size coded_size;
   gfx::Rect visible_rect;
   gfx::Size natural_size;
-  bool is_encrypted;
+  media::EncryptionScheme encryption_scheme;
   std::vector<uint8_t> extra_data;
   if (!ReadParam(m, iter, &codec) || !ReadParam(m, iter, &profile) ||
       !ReadParam(m, iter, &format) || !ReadParam(m, iter, &color_space) ||
       !ReadParam(m, iter, &coded_size) || !ReadParam(m, iter, &visible_rect) ||
       !ReadParam(m, iter, &natural_size) ||
-      !ReadParam(m, iter, &is_encrypted) || !ReadParam(m, iter, &extra_data))
+      !ReadParam(m, iter, &encryption_scheme) ||
+      !ReadParam(m, iter, &extra_data))
     return false;
   *r = media::VideoDecoderConfig(codec, profile, format, color_space,
                                  coded_size, visible_rect, natural_size,
-                                 extra_data, is_encrypted);
+                                 extra_data, encryption_scheme);
   return true;
 }
 
@@ -109,4 +123,45 @@ void ParamTraits<media::VideoDecoderConfig>::Log(
   l->append(base::StringPrintf("<VideoDecoderConfig>"));
 }
 
+void ParamTraits<media::EncryptionScheme>::Write(
+    base::Pickle* m, const param_type& p) {
+  WriteParam(m, p.mode());
+  WriteParam(m, p.pattern());
+}
+
+bool ParamTraits<media::EncryptionScheme>::Read(
+    const base::Pickle* m, base::PickleIterator* iter, param_type* r) {
+  media::EncryptionScheme::CipherMode mode;
+  media::EncryptionScheme::PatternSpec pattern;
+  if (!ReadParam(m, iter, &mode) || !ReadParam(m, iter, &pattern))
+    return false;
+  *r = media::EncryptionScheme(mode, pattern);
+  return true;
+}
+
+void ParamTraits<media::EncryptionScheme>::Log(
+    const param_type& p, std::string* l) {
+  l->append(base::StringPrintf("<EncryptionScheme>"));
+}
+
+void ParamTraits<media::EncryptionScheme::PatternSpec>::Write(
+    base::Pickle* m, const param_type& p) {
+  WriteParam(m, p.encrypt_blocks());
+  WriteParam(m, p.skip_blocks());
+}
+
+bool ParamTraits<media::EncryptionScheme::PatternSpec>::Read(
+    const base::Pickle* m, base::PickleIterator* iter, param_type* r) {
+  uint32_t encrypt_blocks, skip_blocks;
+  if (!ReadParam(m, iter, &encrypt_blocks) || !ReadParam(m, iter, &skip_blocks))
+    return false;
+  *r = media::EncryptionScheme::PatternSpec(encrypt_blocks, skip_blocks);
+  return true;
+}
+
+void ParamTraits<media::EncryptionScheme::PatternSpec>::Log(
+    const param_type& p, std::string* l) {
+  l->append(base::StringPrintf("<PatternSpec>"));
+}
+
 }  // namespace IPC