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
12namespace 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)
17enum 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  PIPELINE_STATUS_MAX,  // Must be greater than all other values logged.
36};
37
38typedef base::Callback<void(PipelineStatus)> PipelineStatusCB;
39
40// Wrap & return a callback around |cb| which reports its argument to UMA under
41// the requested |name|.
42PipelineStatusCB CreateUMAReportingPipelineCB(const std::string& name,
43                                              const PipelineStatusCB& cb);
44
45// TODO(scherkus): this should be moved alongside host interface definitions.
46struct PipelineStatistics {
47  PipelineStatistics()
48      : audio_bytes_decoded(0),
49        video_bytes_decoded(0),
50        video_frames_decoded(0),
51        video_frames_dropped(0) {
52  }
53
54  uint32 audio_bytes_decoded;  // Should be uint64?
55  uint32 video_bytes_decoded;  // Should be uint64?
56  uint32 video_frames_decoded;
57  uint32 video_frames_dropped;
58};
59
60// Used for updating pipeline statistics.
61typedef base::Callback<void(const PipelineStatistics&)> StatisticsCB;
62
63}  // namespace media
64
65#endif  // MEDIA_BASE_PIPELINE_STATUS_H_
66