media config: expand is_encrypted to a struct.

chromecast/common/media/cma_param_traits.cc

 // Copyright 2014 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.
 
 #include "chromecast/common/media/cma_param_traits.h"
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "chromecast/common/media/cma_param_traits_macros.h"
 #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"
 
 // Note(gunsch): these are currently defined in content/, but not declared in
 // content/public/. These headers need to be forward-declared for chromecast/,
 // but without new implementations linked in.
 // The correct long-term fix is to use Mojo instead of the content/ IPCs.
 IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::ChannelLayout,
                               media::ChannelLayout::CHANNEL_LAYOUT_NONE,
                               media::ChannelLayout::CHANNEL_LAYOUT_MAX)
 IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::VideoCodecProfile,
                               media::VIDEO_CODEC_PROFILE_MIN,
                               media::VIDEO_CODEC_PROFILE_MAX)
 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) {
   WriteParam(m, p.codec());
   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());
 }
 
 bool ParamTraits<media::AudioDecoderConfig>::Read(
     const base::Pickle* m,
     base::PickleIterator* iter,
     media::AudioDecoderConfig* r) {
   media::AudioCodec codec;
   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;
 }
 
 void ParamTraits<media::AudioDecoderConfig>::Log(
     const media::AudioDecoderConfig& p, std::string* l) {
   l->append(base::StringPrintf("<AudioDecoderConfig>"));
 }
 
 void ParamTraits<media::VideoDecoderConfig>::Write(
     base::Pickle* m,
     const media::VideoDecoderConfig& p) {
   WriteParam(m, p.codec());
   WriteParam(m, p.profile());
   WriteParam(m, p.format());
   WriteParam(m, p.color_space());
   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());
 }
 
 bool ParamTraits<media::VideoDecoderConfig>::Read(
     const base::Pickle* m,
     base::PickleIterator* iter,
     media::VideoDecoderConfig* r) {
   media::VideoCodec codec;
   media::VideoCodecProfile profile;
   media::VideoPixelFormat format;
   media::ColorSpace color_space;
   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;
 }
 
 void ParamTraits<media::VideoDecoderConfig>::Log(
     const media::VideoDecoderConfig& p, std::string* l) {
   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