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Side by Side Diff: media/mp4/mp4_stream_parser.cc

Issue 10910293: Add is_encrypted() in VideoDecoderConfig. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years, 3 months 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 #include "media/mp4/mp4_stream_parser.h" 5 #include "media/mp4/mp4_stream_parser.h"
6 6
7 #include "base/callback.h" 7 #include "base/callback.h"
8 #include "base/callback_helpers.h" 8 #include "base/callback_helpers.h"
9 #include "base/logging.h" 9 #include "base/logging.h"
10 #include "base/time.h" 10 #include "base/time.h"
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147 bool MP4StreamParser::ParseMoov(BoxReader* reader) { 147 bool MP4StreamParser::ParseMoov(BoxReader* reader) {
148 moov_.reset(new Movie); 148 moov_.reset(new Movie);
149 RCHECK(moov_->Parse(reader)); 149 RCHECK(moov_->Parse(reader));
150 runs_.reset(new TrackRunIterator(moov_.get())); 150 runs_.reset(new TrackRunIterator(moov_.get()));
151 151
152 has_audio_ = false; 152 has_audio_ = false;
153 has_video_ = false; 153 has_video_ = false;
154 154
155 AudioDecoderConfig audio_config; 155 AudioDecoderConfig audio_config;
156 VideoDecoderConfig video_config; 156 VideoDecoderConfig video_config;
157 bool is_audio_encrypted = false;
158 bool is_video_encrypted = false;
157 159
158 for (std::vector<Track>::const_iterator track = moov_->tracks.begin(); 160 for (std::vector<Track>::const_iterator track = moov_->tracks.begin();
159 track != moov_->tracks.end(); ++track) { 161 track != moov_->tracks.end(); ++track) {
160 // TODO(strobe): Only the first audio and video track present in a file are 162 // TODO(strobe): Only the first audio and video track present in a file are
161 // used. (Track selection is better accomplished via Source IDs, though, so 163 // used. (Track selection is better accomplished via Source IDs, though, so
162 // adding support for track selection within a stream is low-priority.) 164 // adding support for track selection within a stream is low-priority.)
163 const SampleDescription& samp_descr = 165 const SampleDescription& samp_descr =
164 track->media.information.sample_table.description; 166 track->media.information.sample_table.description;
165 167
166 // TODO(strobe): When codec reconfigurations are supported, detect and send 168 // TODO(strobe): When codec reconfigurations are supported, detect and send
(...skipping 24 matching lines...) Expand all
191 (entry.format == FOURCC_ENCA && 193 (entry.format == FOURCC_ENCA &&
192 entry.sinf.format.format == FOURCC_MP4A))) { 194 entry.sinf.format.format == FOURCC_MP4A))) {
193 LOG(ERROR) << "Unsupported audio format."; 195 LOG(ERROR) << "Unsupported audio format.";
194 return false; 196 return false;
195 } 197 }
196 // Check if it is MPEG4 AAC defined in ISO 14496 Part 3. 198 // Check if it is MPEG4 AAC defined in ISO 14496 Part 3.
197 if (entry.esds.object_type != kISO_14496_3) { 199 if (entry.esds.object_type != kISO_14496_3) {
198 LOG(ERROR) << "Unsupported audio object type."; 200 LOG(ERROR) << "Unsupported audio object type.";
199 return false; 201 return false;
200 } 202 }
203
204 is_audio_encrypted = entry.sinf.info.track_encryption.is_encrypted;
201 RCHECK(EmitKeyNeeded(entry.sinf.info.track_encryption)); 205 RCHECK(EmitKeyNeeded(entry.sinf.info.track_encryption));
202 206
203 audio_config.Initialize(kCodecAAC, entry.samplesize, 207 audio_config.Initialize(kCodecAAC, entry.samplesize,
204 aac.channel_layout(), 208 aac.channel_layout(),
205 aac.GetOutputSamplesPerSecond(has_sbr_), 209 aac.GetOutputSamplesPerSecond(has_sbr_),
206 NULL, 0, false); 210 NULL, 0, false);
207 has_audio_ = true; 211 has_audio_ = true;
208 audio_track_id_ = track->header.track_id; 212 audio_track_id_ = track->header.track_id;
209 } 213 }
210 if (track->media.handler.type == kVideo && !video_config.IsValidConfig()) { 214 if (track->media.handler.type == kVideo && !video_config.IsValidConfig()) {
211 RCHECK(!samp_descr.video_entries.empty()); 215 RCHECK(!samp_descr.video_entries.empty());
212 if (desc_idx >= samp_descr.video_entries.size()) 216 if (desc_idx >= samp_descr.video_entries.size())
213 desc_idx = 0; 217 desc_idx = 0;
214 const VideoSampleEntry& entry = samp_descr.video_entries[desc_idx]; 218 const VideoSampleEntry& entry = samp_descr.video_entries[desc_idx];
215 219
216 if (!(entry.format == FOURCC_AVC1 || 220 if (!(entry.format == FOURCC_AVC1 ||
217 (entry.format == FOURCC_ENCV && 221 (entry.format == FOURCC_ENCV &&
218 entry.sinf.format.format == FOURCC_AVC1))) { 222 entry.sinf.format.format == FOURCC_AVC1))) {
219 LOG(ERROR) << "Unsupported video format."; 223 LOG(ERROR) << "Unsupported video format.";
220 return false; 224 return false;
221 } 225 }
226
227 is_video_encrypted = entry.sinf.info.track_encryption.is_encrypted;
222 RCHECK(EmitKeyNeeded(entry.sinf.info.track_encryption)); 228 RCHECK(EmitKeyNeeded(entry.sinf.info.track_encryption));
223 229
224 // TODO(strobe): Recover correct crop box 230 // TODO(strobe): Recover correct crop box
225 gfx::Size coded_size(entry.width, entry.height); 231 gfx::Size coded_size(entry.width, entry.height);
226 gfx::Rect visible_rect(coded_size); 232 gfx::Rect visible_rect(coded_size);
227 gfx::Size natural_size = GetNaturalSize(visible_rect.size(), 233 gfx::Size natural_size = GetNaturalSize(visible_rect.size(),
228 entry.pixel_aspect.h_spacing, 234 entry.pixel_aspect.h_spacing,
229 entry.pixel_aspect.v_spacing); 235 entry.pixel_aspect.v_spacing);
230 video_config.Initialize(kCodecH264, H264PROFILE_MAIN, VideoFrame::YV12, 236 video_config.Initialize(kCodecH264, H264PROFILE_MAIN, VideoFrame::YV12,
231 coded_size, visible_rect, natural_size, 237 coded_size, visible_rect, natural_size,
232 // No decoder-specific buffer needed for AVC; 238 // No decoder-specific buffer needed for AVC;
233 // SPS/PPS are embedded in the video stream 239 // SPS/PPS are embedded in the video stream
234 NULL, 0, true); 240 NULL, 0, true);
235 has_video_ = true; 241 has_video_ = true;
236 video_track_id_ = track->header.track_id; 242 video_track_id_ = track->header.track_id;
237 } 243 }
238 } 244 }
239 245
240 RCHECK(config_cb_.Run(audio_config, video_config)); 246 RCHECK(config_cb_.Run(audio_config, video_config,
247 is_audio_encrypted, is_video_encrypted));
241 248
242 base::TimeDelta duration; 249 base::TimeDelta duration;
243 if (moov_->extends.header.fragment_duration > 0) { 250 if (moov_->extends.header.fragment_duration > 0) {
244 duration = TimeDeltaFromRational(moov_->extends.header.fragment_duration, 251 duration = TimeDeltaFromRational(moov_->extends.header.fragment_duration,
245 moov_->header.timescale); 252 moov_->header.timescale);
246 } else if (moov_->header.duration > 0) { 253 } else if (moov_->header.duration > 0) {
247 duration = TimeDeltaFromRational(moov_->header.duration, 254 duration = TimeDeltaFromRational(moov_->header.duration,
248 moov_->header.timescale); 255 moov_->header.timescale);
249 } else { 256 } else {
250 duration = kInfiniteDuration(); 257 duration = kInfiniteDuration();
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483 return !err; 490 return !err;
484 } 491 }
485 492
486 void MP4StreamParser::ChangeState(State new_state) { 493 void MP4StreamParser::ChangeState(State new_state) {
487 DVLOG(2) << "Changing state: " << new_state; 494 DVLOG(2) << "Changing state: " << new_state;
488 state_ = new_state; 495 state_ = new_state;
489 } 496 }
490 497
491 } // namespace mp4 498 } // namespace mp4
492 } // namespace media 499 } // namespace media
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