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      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/webmediaplayer_util.h"
      6 
      7 #include <math.h>
      8 
      9 #include "media/base/media_keys.h"
     10 #include "third_party/WebKit/public/web/WebMediaPlayerClient.h"
     11 
     12 namespace content {
     13 
     14 // Compile asserts shared by all platforms.
     15 
     16 #define COMPILE_ASSERT_MATCHING_ENUM(name) \
     17   COMPILE_ASSERT( \
     18   static_cast<int>(WebKit::WebMediaPlayerClient::MediaKeyErrorCode ## name) == \
     19   static_cast<int>(media::MediaKeys::k ## name ## Error), \
     20   mismatching_enums)
     21 COMPILE_ASSERT_MATCHING_ENUM(Unknown);
     22 COMPILE_ASSERT_MATCHING_ENUM(Client);
     23 #undef COMPILE_ASSERT_MATCHING_ENUM
     24 
     25 base::TimeDelta ConvertSecondsToTimestamp(double seconds) {
     26   double microseconds = seconds * base::Time::kMicrosecondsPerSecond;
     27   return base::TimeDelta::FromMicroseconds(
     28       microseconds > 0 ? microseconds + 0.5 : ceil(microseconds - 0.5));
     29 }
     30 
     31 WebKit::WebTimeRanges ConvertToWebTimeRanges(
     32     const media::Ranges<base::TimeDelta>& ranges) {
     33   WebKit::WebTimeRanges result(ranges.size());
     34   for (size_t i = 0; i < ranges.size(); i++) {
     35     result[i].start = ranges.start(i).InSecondsF();
     36     result[i].end = ranges.end(i).InSecondsF();
     37   }
     38   return result;
     39 }
     40 
     41 WebKit::WebMediaPlayer::NetworkState PipelineErrorToNetworkState(
     42     media::PipelineStatus error) {
     43   DCHECK_NE(error, media::PIPELINE_OK);
     44 
     45   switch (error) {
     46     case media::PIPELINE_ERROR_NETWORK:
     47     case media::PIPELINE_ERROR_READ:
     48       return WebKit::WebMediaPlayer::NetworkStateNetworkError;
     49 
     50     // TODO(vrk): Because OnPipelineInitialize() directly reports the
     51     // NetworkStateFormatError instead of calling OnPipelineError(), I believe
     52     // this block can be deleted. Should look into it! (crbug.com/126070)
     53     case media::PIPELINE_ERROR_INITIALIZATION_FAILED:
     54     case media::PIPELINE_ERROR_COULD_NOT_RENDER:
     55     case media::PIPELINE_ERROR_URL_NOT_FOUND:
     56     case media::DEMUXER_ERROR_COULD_NOT_OPEN:
     57     case media::DEMUXER_ERROR_COULD_NOT_PARSE:
     58     case media::DEMUXER_ERROR_NO_SUPPORTED_STREAMS:
     59     case media::DECODER_ERROR_NOT_SUPPORTED:
     60       return WebKit::WebMediaPlayer::NetworkStateFormatError;
     61 
     62     case media::PIPELINE_ERROR_DECODE:
     63     case media::PIPELINE_ERROR_ABORT:
     64     case media::PIPELINE_ERROR_OPERATION_PENDING:
     65     case media::PIPELINE_ERROR_INVALID_STATE:
     66       return WebKit::WebMediaPlayer::NetworkStateDecodeError;
     67 
     68     case media::PIPELINE_ERROR_DECRYPT:
     69       // TODO(xhwang): Change to use NetworkStateDecryptError once it's added in
     70       // Webkit (see http://crbug.com/124486).
     71       return WebKit::WebMediaPlayer::NetworkStateDecodeError;
     72 
     73     case media::PIPELINE_OK:
     74     case media::PIPELINE_STATUS_MAX:
     75       NOTREACHED() << "Unexpected status! " << error;
     76   }
     77   return WebKit::WebMediaPlayer::NetworkStateFormatError;
     78 }
     79 
     80 }  // namespace content
     81