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Side by Side Diff: media/ffmpeg/ffmpeg_common.h

Issue 1534273002: Switch to standard integer types in media/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: more Created 5 years ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef MEDIA_FFMPEG_FFMPEG_COMMON_H_ 5 #ifndef MEDIA_FFMPEG_FFMPEG_COMMON_H_
6 #define MEDIA_FFMPEG_FFMPEG_COMMON_H_ 6 #define MEDIA_FFMPEG_FFMPEG_COMMON_H_
7 7
8 // Used for FFmpeg error codes. 8 // Used for FFmpeg error codes.
9 #include <cerrno> 9 #include <cerrno>
10 10
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68 inline void ScopedPtrAVFreeContext::operator()(void* x) const { 68 inline void ScopedPtrAVFreeContext::operator()(void* x) const {
69 AVCodecContext* codec_context = static_cast<AVCodecContext*>(x); 69 AVCodecContext* codec_context = static_cast<AVCodecContext*>(x);
70 avcodec_free_context(&codec_context); 70 avcodec_free_context(&codec_context);
71 } 71 }
72 72
73 inline void ScopedPtrAVFreeFrame::operator()(void* x) const { 73 inline void ScopedPtrAVFreeFrame::operator()(void* x) const {
74 AVFrame* frame = static_cast<AVFrame*>(x); 74 AVFrame* frame = static_cast<AVFrame*>(x);
75 av_frame_free(&frame); 75 av_frame_free(&frame);
76 } 76 }
77 77
78 // Converts an int64 timestamp in |time_base| units to a base::TimeDelta. 78 // Converts an int64_t timestamp in |time_base| units to a base::TimeDelta.
79 // For example if |timestamp| equals 11025 and |time_base| equals {1, 44100} 79 // For example if |timestamp| equals 11025 and |time_base| equals {1, 44100}
80 // then the return value will be a base::TimeDelta for 0.25 seconds since that 80 // then the return value will be a base::TimeDelta for 0.25 seconds since that
81 // is how much time 11025/44100ths of a second represents. 81 // is how much time 11025/44100ths of a second represents.
82 MEDIA_EXPORT base::TimeDelta ConvertFromTimeBase(const AVRational& time_base, 82 MEDIA_EXPORT base::TimeDelta ConvertFromTimeBase(const AVRational& time_base,
83 int64 timestamp); 83 int64_t timestamp);
84 84
85 // Converts a base::TimeDelta into an int64 timestamp in |time_base| units. 85 // Converts a base::TimeDelta into an int64_t timestamp in |time_base| units.
86 // For example if |timestamp| is 0.5 seconds and |time_base| is {1, 44100}, then 86 // For example if |timestamp| is 0.5 seconds and |time_base| is {1, 44100}, then
87 // the return value will be 22050 since that is how many 1/44100ths of a second 87 // the return value will be 22050 since that is how many 1/44100ths of a second
88 // represent 0.5 seconds. 88 // represent 0.5 seconds.
89 MEDIA_EXPORT int64 ConvertToTimeBase(const AVRational& time_base, 89 MEDIA_EXPORT int64_t ConvertToTimeBase(const AVRational& time_base,
90 const base::TimeDelta& timestamp); 90 const base::TimeDelta& timestamp);
91 91
92 // Returns true if AVStream is successfully converted to a AudioDecoderConfig. 92 // Returns true if AVStream is successfully converted to a AudioDecoderConfig.
93 // Returns false if conversion fails, in which case |config| is not modified. 93 // Returns false if conversion fails, in which case |config| is not modified.
94 MEDIA_EXPORT bool AVStreamToAudioDecoderConfig(const AVStream* stream, 94 MEDIA_EXPORT bool AVStreamToAudioDecoderConfig(const AVStream* stream,
95 AudioDecoderConfig* config); 95 AudioDecoderConfig* config);
96 void AudioDecoderConfigToAVCodecContext( 96 void AudioDecoderConfigToAVCodecContext(
97 const AudioDecoderConfig& config, 97 const AudioDecoderConfig& config,
98 AVCodecContext* codec_context); 98 AVCodecContext* codec_context);
99 99
100 // Returns true if AVStream is successfully converted to a VideoDecoderConfig. 100 // Returns true if AVStream is successfully converted to a VideoDecoderConfig.
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140 // date string. Otherwise returns fals and timeline_offset is unmodified. 140 // date string. Otherwise returns fals and timeline_offset is unmodified.
141 MEDIA_EXPORT bool FFmpegUTCDateToTime(const char* date_utc, base::Time* out); 141 MEDIA_EXPORT bool FFmpegUTCDateToTime(const char* date_utc, base::Time* out);
142 142
143 // Returns a 32-bit hash for the given codec name. See the VerifyUmaCodecHashes 143 // Returns a 32-bit hash for the given codec name. See the VerifyUmaCodecHashes
144 // unit test for more information and code for generating the histogram XML. 144 // unit test for more information and code for generating the histogram XML.
145 MEDIA_EXPORT int32_t HashCodecName(const char* codec_name); 145 MEDIA_EXPORT int32_t HashCodecName(const char* codec_name);
146 146
147 } // namespace media 147 } // namespace media
148 148
149 #endif // MEDIA_FFMPEG_FFMPEG_COMMON_H_ 149 #endif // MEDIA_FFMPEG_FFMPEG_COMMON_H_
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