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 ::blink::WebString;
  14 using ::blink::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 blink::WebString& type,
  38     const blink::WebVector<blink::WebString>& codecs,
  39     const WebMediaSource::FrameProcessorChoice frame_processor_choice,
  40     blink::WebSourceBuffer** source_buffer) {
  41   std::string id = base::GenerateGUID();
  42   std::vector<std::string> new_codecs(codecs.size());
  43   for (size_t i = 0; i < codecs.size(); ++i)
  44     new_codecs[i] = codecs[i].utf8().data();
  45
  46   bool use_legacy_frame_processor = false;
  47   switch (frame_processor_choice) {
  48     case UseLegacyFrameProcessor:
  49       use_legacy_frame_processor = true;
  50       break;
  51     case UseNewFrameProcessor:
  52       break;
  53   }
  54
  55   WebMediaSource::AddStatus result =
  56       static_cast<WebMediaSource::AddStatus>(
  57           demuxer_->AddId(id, type.utf8().data(), new_codecs,
  58                           use_legacy_frame_processor));
  59
  60   if (result == WebMediaSource::AddStatusOk)
  61     *source_buffer = new WebSourceBufferImpl(id, demuxer_);
  62
  63   return result;
  64 }
  65
  66 double WebMediaSourceImpl::duration() {
  67   return demuxer_->GetDuration();
  68 }
  69
  70 void WebMediaSourceImpl::setDuration(double new_duration) {
  71   DCHECK_GE(new_duration, 0);
  72   demuxer_->SetDuration(new_duration);
  73 }
  74
  75 void WebMediaSourceImpl::markEndOfStream(
  76     WebMediaSource::EndOfStreamStatus status) {
  77   media::PipelineStatus pipeline_status = media::PIPELINE_OK;
  78
  79   switch (status) {
  80     case WebMediaSource::EndOfStreamStatusNoError:
  81       break;
  82     case WebMediaSource::EndOfStreamStatusNetworkError:
  83       pipeline_status = media::PIPELINE_ERROR_NETWORK;
  84       break;
  85     case WebMediaSource::EndOfStreamStatusDecodeError:
  86       pipeline_status = media::PIPELINE_ERROR_DECODE;
  87       break;
  88   }
  89
  90   demuxer_->MarkEndOfStream(pipeline_status);
  91 }
  92
  93 void WebMediaSourceImpl::unmarkEndOfStream() {
  94   demuxer_->UnmarkEndOfStream();
  95 }
  96
  97 }  // namespace content