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      1 // Copyright (c) 2012 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 #ifndef MEDIA_BASE_PIPELINE_STATUS_H_
      6 #define MEDIA_BASE_PIPELINE_STATUS_H_
      7 
      8 #include "base/callback.h"
      9 
     10 #include <string>
     11 
     12 namespace media {
     13 
     14 // Status states for pipeline.  All codes except PIPELINE_OK indicate errors.
     15 // Logged to UMA, so never reuse a value, always add new/greater ones!
     16 // TODO(vrk/scherkus): Trim the unused status codes. (crbug.com/126070)
     17 enum PipelineStatus {
     18   PIPELINE_OK = 0,
     19   PIPELINE_ERROR_URL_NOT_FOUND = 1,
     20   PIPELINE_ERROR_NETWORK = 2,
     21   PIPELINE_ERROR_DECODE = 3,
     22   PIPELINE_ERROR_DECRYPT = 4,
     23   PIPELINE_ERROR_ABORT = 5,
     24   PIPELINE_ERROR_INITIALIZATION_FAILED = 6,
     25   PIPELINE_ERROR_COULD_NOT_RENDER = 8,
     26   PIPELINE_ERROR_READ = 9,
     27   PIPELINE_ERROR_OPERATION_PENDING = 10,
     28   PIPELINE_ERROR_INVALID_STATE = 11,
     29   // Demuxer related errors.
     30   DEMUXER_ERROR_COULD_NOT_OPEN = 12,
     31   DEMUXER_ERROR_COULD_NOT_PARSE = 13,
     32   DEMUXER_ERROR_NO_SUPPORTED_STREAMS = 14,
     33   // Decoder related errors.
     34   DECODER_ERROR_NOT_SUPPORTED = 15,
     35   // Must be equal to the largest value ever logged.
     36   PIPELINE_STATUS_MAX = DECODER_ERROR_NOT_SUPPORTED,
     37 };
     38 
     39 typedef base::Callback<void(PipelineStatus)> PipelineStatusCB;
     40 
     41 // TODO(scherkus): this should be moved alongside host interface definitions.
     42 struct PipelineStatistics {
     43   PipelineStatistics()
     44       : audio_bytes_decoded(0),
     45         video_bytes_decoded(0),
     46         video_frames_decoded(0),
     47         video_frames_dropped(0) {
     48   }
     49 
     50   uint32 audio_bytes_decoded;  // Should be uint64?
     51   uint32 video_bytes_decoded;  // Should be uint64?
     52   uint32 video_frames_decoded;
     53   uint32 video_frames_dropped;
     54 };
     55 
     56 // Used for updating pipeline statistics.
     57 typedef base::Callback<void(const PipelineStatistics&)> StatisticsCB;
     58 
     59 }  // namespace media
     60 
     61 #endif  // MEDIA_BASE_PIPELINE_STATUS_H_
     62