src/content/renderer/media/webmediasource_impl.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/media/webmediasource_impl.h"
   6
   7 #include "base/guid.h"
   8 #include "content/renderer/media/websourcebuffer_impl.h"
   9 #include "media/filters/chunk_demuxer.h"
  10 #include "third_party/WebKit/public/platform/WebCString.h"
  11 #include "third_party/WebKit/public/platform/WebString.h"
  12
  13 using ::WebKit::WebString;
  14 using ::WebKit::WebMediaSource;
  15
  16 namespace content {
  17
  18 #define COMPILE_ASSERT_MATCHING_STATUS_ENUM(webkit_name, chromium_name) \
  19   COMPILE_ASSERT(static_cast<int>(WebMediaSource::webkit_name) == \
  20                  static_cast<int>(media::ChunkDemuxer::chromium_name),  \
  21                  mismatching_status_enums)
  22 COMPILE_ASSERT_MATCHING_STATUS_ENUM(AddStatusOk, kOk);
  23 COMPILE_ASSERT_MATCHING_STATUS_ENUM(AddStatusNotSupported, kNotSupported);
  24 COMPILE_ASSERT_MATCHING_STATUS_ENUM(AddStatusReachedIdLimit, kReachedIdLimit);
  25 #undef COMPILE_ASSERT_MATCHING_STATUS_ENUM
  26
  27 WebMediaSourceImpl::WebMediaSourceImpl(
  28     media::ChunkDemuxer* demuxer, media::LogCB log_cb)
  29     : demuxer_(demuxer),
  30       log_cb_(log_cb) {
  31   DCHECK(demuxer_);
  32 }
  33
  34 WebMediaSourceImpl::~WebMediaSourceImpl() {}
  35
  36 WebMediaSource::AddStatus WebMediaSourceImpl::addSourceBuffer(
  37     const WebKit::WebString& type,
  38     const WebKit::WebVector<WebKit::WebString>& codecs,
  39     WebKit::WebSourceBuffer** source_buffer) {
  40   std::string id = base::GenerateGUID();
  41   std::vector<std::string> new_codecs(codecs.size());
  42   for (size_t i = 0; i < codecs.size(); ++i)
  43     new_codecs[i] = codecs[i].utf8().data();
  44   WebMediaSource::AddStatus result =
  45       static_cast<WebMediaSource::AddStatus>(
  46           demuxer_->AddId(id, type.utf8().data(), new_codecs));
  47
  48   if (result == WebMediaSource::AddStatusOk)
  49     *source_buffer = new WebSourceBufferImpl(id, demuxer_);
  50
  51   return result;
  52 }
  53
  54 double WebMediaSourceImpl::duration() {
  55   return demuxer_->GetDuration();
  56 }
  57
  58 void WebMediaSourceImpl::setDuration(double new_duration) {
  59   DCHECK_GE(new_duration, 0);
  60   demuxer_->SetDuration(new_duration);
  61 }
  62
  63 void WebMediaSourceImpl::markEndOfStream(
  64     WebMediaSource::EndOfStreamStatus status) {
  65   media::PipelineStatus pipeline_status = media::PIPELINE_OK;
  66
  67   switch (status) {
  68     case WebMediaSource::EndOfStreamStatusNoError:
  69       break;
  70     case WebMediaSource::EndOfStreamStatusNetworkError:
  71       pipeline_status = media::PIPELINE_ERROR_NETWORK;
  72       break;
  73     case WebMediaSource::EndOfStreamStatusDecodeError:
  74       pipeline_status = media::PIPELINE_ERROR_DECODE;
  75       break;
  76     default:
  77       NOTIMPLEMENTED();
  78   }
  79
  80   demuxer_->MarkEndOfStream(pipeline_status);
  81 }
  82
  83 void WebMediaSourceImpl::unmarkEndOfStream() {
  84   demuxer_->UnmarkEndOfStream();
  85 }
  86
  87 }  // namespace content