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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 <algorithm> | 7 #include <algorithm> |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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68 // Don't use |codec_context_| here! With threaded decoding, | 68 // Don't use |codec_context_| here! With threaded decoding, |
69 // it will contain unsynchronized width/height/pix_fmt values, | 69 // it will contain unsynchronized width/height/pix_fmt values, |
70 // whereas |codec_context| contains the current threads's | 70 // whereas |codec_context| contains the current threads's |
71 // updated width/height/pix_fmt, which can change for adaptive | 71 // updated width/height/pix_fmt, which can change for adaptive |
72 // content. | 72 // content. |
73 VideoFrame::Format format = PixelFormatToVideoFormat(codec_context->pix_fmt); | 73 VideoFrame::Format format = PixelFormatToVideoFormat(codec_context->pix_fmt); |
74 if (format == VideoFrame::INVALID) | 74 if (format == VideoFrame::INVALID) |
75 return AVERROR(EINVAL); | 75 return AVERROR(EINVAL); |
76 DCHECK(format == VideoFrame::YV12 || format == VideoFrame::YV16); | 76 DCHECK(format == VideoFrame::YV12 || format == VideoFrame::YV16); |
77 | 77 |
78 int width = codec_context->width; | 78 gfx::Size size(codec_context->width, codec_context->height); |
79 int height = codec_context->height; | |
80 int ret; | 79 int ret; |
81 if ((ret = av_image_check_size(width, height, 0, NULL)) < 0) | 80 if ((ret = av_image_check_size(size.width(), size.height(), 0, NULL)) < 0) |
82 return ret; | 81 return ret; |
83 | 82 |
| 83 gfx::Size natural_size; |
| 84 if (codec_context->sample_aspect_ratio.num > 0) { |
| 85 natural_size = GetNaturalSize(size, |
| 86 codec_context->sample_aspect_ratio.num, |
| 87 codec_context->sample_aspect_ratio.den); |
| 88 } else { |
| 89 natural_size = demuxer_stream_->video_decoder_config().natural_size(); |
| 90 } |
| 91 |
84 scoped_refptr<VideoFrame> video_frame = | 92 scoped_refptr<VideoFrame> video_frame = |
85 VideoFrame::CreateFrame(format, width, height, kNoTimestamp()); | 93 VideoFrame::CreateFrame(format, size, natural_size, kNoTimestamp()); |
86 | 94 |
87 for (int i = 0; i < 3; i++) { | 95 for (int i = 0; i < 3; i++) { |
88 frame->base[i] = video_frame->data(i); | 96 frame->base[i] = video_frame->data(i); |
89 frame->data[i] = video_frame->data(i); | 97 frame->data[i] = video_frame->data(i); |
90 frame->linesize[i] = video_frame->stride(i); | 98 frame->linesize[i] = video_frame->stride(i); |
91 } | 99 } |
92 | 100 |
93 frame->opaque = video_frame.release(); | 101 frame->opaque = video_frame.release(); |
94 frame->type = FF_BUFFER_TYPE_USER; | 102 frame->type = FF_BUFFER_TYPE_USER; |
95 frame->pkt_pts = codec_context->pkt ? codec_context->pkt->pts : | 103 frame->pkt_pts = codec_context->pkt ? codec_context->pkt->pts : |
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178 } | 186 } |
179 | 187 |
180 if (avcodec_open2(codec_context_, codec, NULL) < 0) { | 188 if (avcodec_open2(codec_context_, codec, NULL) < 0) { |
181 status_cb.Run(PIPELINE_ERROR_DECODE); | 189 status_cb.Run(PIPELINE_ERROR_DECODE); |
182 return; | 190 return; |
183 } | 191 } |
184 | 192 |
185 // Success! | 193 // Success! |
186 state_ = kNormal; | 194 state_ = kNormal; |
187 av_frame_ = avcodec_alloc_frame(); | 195 av_frame_ = avcodec_alloc_frame(); |
188 natural_size_ = config.natural_size(); | |
189 status_cb.Run(PIPELINE_OK); | 196 status_cb.Run(PIPELINE_OK); |
190 } | 197 } |
191 | 198 |
192 void FFmpegVideoDecoder::Read(const ReadCB& read_cb) { | 199 void FFmpegVideoDecoder::Read(const ReadCB& read_cb) { |
193 // Complete operation asynchronously on different stack of execution as per | 200 // Complete operation asynchronously on different stack of execution as per |
194 // the API contract of VideoDecoder::Read() | 201 // the API contract of VideoDecoder::Read() |
195 message_loop_->PostTask(FROM_HERE, base::Bind( | 202 message_loop_->PostTask(FROM_HERE, base::Bind( |
196 &FFmpegVideoDecoder::DoRead, this, read_cb)); | 203 &FFmpegVideoDecoder::DoRead, this, read_cb)); |
197 } | 204 } |
198 | 205 |
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236 | 243 |
237 DoStop(); | 244 DoStop(); |
238 } | 245 } |
239 | 246 |
240 void FFmpegVideoDecoder::DoStop() { | 247 void FFmpegVideoDecoder::DoStop() { |
241 ReleaseFFmpegResources(); | 248 ReleaseFFmpegResources(); |
242 state_ = kUninitialized; | 249 state_ = kUninitialized; |
243 base::ResetAndReturn(&stop_cb_).Run(); | 250 base::ResetAndReturn(&stop_cb_).Run(); |
244 } | 251 } |
245 | 252 |
246 const gfx::Size& FFmpegVideoDecoder::natural_size() { | |
247 return natural_size_; | |
248 } | |
249 | |
250 void FFmpegVideoDecoder::set_decryptor(Decryptor* decryptor) { | 253 void FFmpegVideoDecoder::set_decryptor(Decryptor* decryptor) { |
251 DCHECK_EQ(state_, kUninitialized); | 254 DCHECK_EQ(state_, kUninitialized); |
252 decryptor_ = decryptor; | 255 decryptor_ = decryptor; |
253 } | 256 } |
254 | 257 |
255 FFmpegVideoDecoder::~FFmpegVideoDecoder() { | 258 FFmpegVideoDecoder::~FFmpegVideoDecoder() { |
256 ReleaseFFmpegResources(); | 259 ReleaseFFmpegResources(); |
257 } | 260 } |
258 | 261 |
259 void FFmpegVideoDecoder::DoRead(const ReadCB& read_cb) { | 262 void FFmpegVideoDecoder::DoRead(const ReadCB& read_cb) { |
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513 av_free(codec_context_); | 516 av_free(codec_context_); |
514 codec_context_ = NULL; | 517 codec_context_ = NULL; |
515 } | 518 } |
516 if (av_frame_) { | 519 if (av_frame_) { |
517 av_free(av_frame_); | 520 av_free(av_frame_); |
518 av_frame_ = NULL; | 521 av_frame_ = NULL; |
519 } | 522 } |
520 } | 523 } |
521 | 524 |
522 } // namespace media | 525 } // namespace media |
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