Media: Introduce addSourceBuffer which takes an unparsed codecs string

Introduce an overload of WebMediaSourceImpl::addSourceBuffer that takes
codecs as an unparsed string and parses it using
media::ParseCodecString. This will allow us to remove the other
overload, which expects a parsed vector of codecs. This will
consolidate parsing of the codecs string in media and will allow
us to remove duplicated parsing code in blink::ContentType::codecs

BUG=none

Review URL: https://codereview.chromium.org/1281663003

Cr-Commit-Position: refs/heads/master@{#343058}

2 files changed, 24 insertions, 0 deletions

diff --git a/media/blink/webmediasource_impl.cc b/media/blink/webmediasource_impl.cc
index 4760a49..90af0a1 100644
--- a/media/blink/webmediasource_impl.cc
+++ b/media/blink/webmediasource_impl.cc
@@ -5,6 +5,7 @@
 #include "media/blink/webmediasource_impl.h"
 
 #include "base/guid.h"
+#include "media/base/mime_util.h"
 #include "media/blink/websourcebuffer_impl.h"
 #include "media/filters/chunk_demuxer.h"
 #include "third_party/WebKit/public/platform/WebCString.h"
@@ -51,6 +52,25 @@ WebMediaSource::AddStatus WebMediaSourceImpl::addSourceBuffer(
   return result;
 }
 
+WebMediaSource::AddStatus WebMediaSourceImpl::addSourceBuffer(
+    const blink::WebString& type,
+    const blink::WebString& codecs,
+    blink::WebSourceBuffer** source_buffer) {
+  std::string id = base::GenerateGUID();
+
+  std::vector<std::string> parsed_codec_ids;
+  media::ParseCodecString(codecs.utf8().data(), &parsed_codec_ids, false);
+
+  WebMediaSource::AddStatus result =
+      static_cast<WebMediaSource::AddStatus>(
+          demuxer_->AddId(id, type.utf8().data(), parsed_codec_ids));
+
+  if (result == WebMediaSource::AddStatusOk)
+    *source_buffer = new WebSourceBufferImpl(id, demuxer_);
+
+  return result;
+}
+
 double WebMediaSourceImpl::duration() {
   return demuxer_->GetDuration();
 }
diff --git a/media/blink/webmediasource_impl.h b/media/blink/webmediasource_impl.h
index 5d6d4ba..5a9587d 100644
--- a/media/blink/webmediasource_impl.h
+++ b/media/blink/webmediasource_impl.h
@@ -27,6 +27,10 @@ class MEDIA_EXPORT WebMediaSourceImpl
       const blink::WebString& type,
       const blink::WebVector<blink::WebString>& codecs,
       blink::WebSourceBuffer** source_buffer);
+  virtual AddStatus addSourceBuffer(
+      const blink::WebString& type,
+      const blink::WebString& codecs,
+      blink::WebSourceBuffer** source_buffer);
   virtual double duration();
   virtual void setDuration(double duration);
   virtual void markEndOfStream(EndOfStreamStatus status);