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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 #include "media/filters/ffmpeg_video_decoder.h" | 5 #include "media/filters/ffmpeg_video_decoder.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/callback_helpers.h" | 8 #include "base/callback_helpers.h" |
| 9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
| 10 #include "base/message_loop.h" | 10 #include "base/message_loop.h" |
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| 52 const base::Callback<MessageLoop*()>& message_loop_cb) | 52 const base::Callback<MessageLoop*()>& message_loop_cb) |
| 53 : message_loop_factory_cb_(message_loop_cb), | 53 : message_loop_factory_cb_(message_loop_cb), |
| 54 message_loop_(NULL), | 54 message_loop_(NULL), |
| 55 state_(kUninitialized), | 55 state_(kUninitialized), |
| 56 codec_context_(NULL), | 56 codec_context_(NULL), |
| 57 av_frame_(NULL), | 57 av_frame_(NULL), |
| 58 frame_rate_numerator_(0), | 58 frame_rate_numerator_(0), |
| 59 frame_rate_denominator_(0) { | 59 frame_rate_denominator_(0) { |
| 60 } | 60 } |
| 61 | 61 |
| 62 FFmpegVideoDecoder::~FFmpegVideoDecoder() { | |
| 63 ReleaseFFmpegResources(); | |
| 64 } | |
| 65 | |
| 66 void FFmpegVideoDecoder::Initialize(const scoped_refptr<DemuxerStream>& stream, | 62 void FFmpegVideoDecoder::Initialize(const scoped_refptr<DemuxerStream>& stream, |
| 67 const PipelineStatusCB& status_cb, | 63 const PipelineStatusCB& status_cb, |
| 68 const StatisticsCB& statistics_cb) { | 64 const StatisticsCB& statistics_cb) { |
| 69 if (!message_loop_) { | 65 if (!message_loop_) { |
| 70 message_loop_ = message_loop_factory_cb_.Run(); | 66 message_loop_ = message_loop_factory_cb_.Run(); |
| 71 message_loop_factory_cb_.Reset(); | 67 message_loop_factory_cb_.Reset(); |
| 72 | 68 |
| 73 message_loop_->PostTask(FROM_HERE, base::Bind( | 69 message_loop_->PostTask(FROM_HERE, base::Bind( |
| 74 &FFmpegVideoDecoder::Initialize, this, | 70 &FFmpegVideoDecoder::Initialize, this, |
| 75 stream, status_cb, statistics_cb)); | 71 stream, status_cb, statistics_cb)); |
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| 172 } | 168 } |
| 173 | 169 |
| 174 const gfx::Size& FFmpegVideoDecoder::natural_size() { | 170 const gfx::Size& FFmpegVideoDecoder::natural_size() { |
| 175 return natural_size_; | 171 return natural_size_; |
| 176 } | 172 } |
| 177 | 173 |
| 178 AesDecryptor* FFmpegVideoDecoder::decryptor() { | 174 AesDecryptor* FFmpegVideoDecoder::decryptor() { |
| 179 return &decryptor_; | 175 return &decryptor_; |
| 180 } | 176 } |
| 181 | 177 |
| 178 FFmpegVideoDecoder::~FFmpegVideoDecoder() { |
| 179 ReleaseFFmpegResources(); |
| 180 } |
| 181 |
| 182 void FFmpegVideoDecoder::DoRead(const ReadCB& read_cb) { | 182 void FFmpegVideoDecoder::DoRead(const ReadCB& read_cb) { |
| 183 DCHECK_EQ(MessageLoop::current(), message_loop_); | 183 DCHECK_EQ(MessageLoop::current(), message_loop_); |
| 184 DCHECK(!read_cb.is_null()); | 184 DCHECK(!read_cb.is_null()); |
| 185 CHECK(read_cb_.is_null()) << "Overlapping decodes are not supported."; | 185 CHECK(read_cb_.is_null()) << "Overlapping decodes are not supported."; |
| 186 | 186 |
| 187 // This can happen during shutdown after Stop() has been called. | 187 // This can happen during shutdown after Stop() has been called. |
| 188 if (state_ == kUninitialized) { | 188 if (state_ == kUninitialized) { |
| 189 return; | 189 return; |
| 190 } | 190 } |
| 191 | 191 |
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| 419 scoped_refptr<VideoFrame> FFmpegVideoDecoder::AllocateVideoFrame() { | 419 scoped_refptr<VideoFrame> FFmpegVideoDecoder::AllocateVideoFrame() { |
| 420 VideoFrame::Format format = PixelFormatToVideoFormat(codec_context_->pix_fmt); | 420 VideoFrame::Format format = PixelFormatToVideoFormat(codec_context_->pix_fmt); |
| 421 size_t width = codec_context_->width; | 421 size_t width = codec_context_->width; |
| 422 size_t height = codec_context_->height; | 422 size_t height = codec_context_->height; |
| 423 | 423 |
| 424 return VideoFrame::CreateFrame(format, width, height, | 424 return VideoFrame::CreateFrame(format, width, height, |
| 425 kNoTimestamp(), kNoTimestamp()); | 425 kNoTimestamp(), kNoTimestamp()); |
| 426 } | 426 } |
| 427 | 427 |
| 428 } // namespace media | 428 } // namespace media |
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