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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/vpx_video_decoder.h" | 5 #include "media/filters/vpx_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/location.h" | 10 #include "base/location.h" |
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52 | 52 |
53 decode_threads = std::max(decode_threads, 0); | 53 decode_threads = std::max(decode_threads, 0); |
54 decode_threads = std::min(decode_threads, kMaxDecodeThreads); | 54 decode_threads = std::min(decode_threads, kMaxDecodeThreads); |
55 return decode_threads; | 55 return decode_threads; |
56 } | 56 } |
57 | 57 |
58 VpxVideoDecoder::VpxVideoDecoder( | 58 VpxVideoDecoder::VpxVideoDecoder( |
59 const scoped_refptr<base::MessageLoopProxy>& message_loop) | 59 const scoped_refptr<base::MessageLoopProxy>& message_loop) |
60 : message_loop_(message_loop), | 60 : message_loop_(message_loop), |
61 state_(kUninitialized), | 61 state_(kUninitialized), |
62 vpx_codec_(NULL) { | 62 vpx_codec_(NULL), |
63 vpx_codec_alpha_(NULL) { | |
63 } | 64 } |
64 | 65 |
65 VpxVideoDecoder::~VpxVideoDecoder() { | 66 VpxVideoDecoder::~VpxVideoDecoder() { |
66 DCHECK_EQ(kUninitialized, state_); | 67 DCHECK_EQ(kUninitialized, state_); |
67 CloseDecoder(); | 68 CloseDecoder(); |
68 } | 69 } |
69 | 70 |
70 void VpxVideoDecoder::Initialize( | 71 void VpxVideoDecoder::Initialize( |
71 const scoped_refptr<DemuxerStream>& stream, | 72 const scoped_refptr<DemuxerStream>& stream, |
72 const PipelineStatusCB& status_cb, | 73 const PipelineStatusCB& status_cb, |
(...skipping 20 matching lines...) Expand all Loading... | |
93 } | 94 } |
94 | 95 |
95 bool VpxVideoDecoder::ConfigureDecoder() { | 96 bool VpxVideoDecoder::ConfigureDecoder() { |
96 const VideoDecoderConfig& config = demuxer_stream_->video_decoder_config(); | 97 const VideoDecoderConfig& config = demuxer_stream_->video_decoder_config(); |
97 if (!config.IsValidConfig()) { | 98 if (!config.IsValidConfig()) { |
98 DLOG(ERROR) << "Invalid video stream config: " | 99 DLOG(ERROR) << "Invalid video stream config: " |
99 << config.AsHumanReadableString(); | 100 << config.AsHumanReadableString(); |
100 return false; | 101 return false; |
101 } | 102 } |
102 | 103 |
103 if (config.codec() != kCodecVP9) | 104 format_ = config.format(); |
scherkus (not reviewing)
2013/02/22 23:18:01
it looks like the only reason for storing format_
vignesh
2013/02/25 21:51:42
Done.
| |
104 return false; | 105 const CommandLine* cmd_line = CommandLine::ForCurrentProcess(); |
106 bool can_handle = false; | |
107 if (cmd_line->HasSwitch(switches::kEnableVp9Playback) && | |
108 config.codec() == kCodecVP9) { | |
109 can_handle = true; | |
scherkus (not reviewing)
2013/02/22 23:18:01
de-indent by 2
vignesh
2013/02/25 21:51:42
Done.
| |
110 } | |
111 if (cmd_line->HasSwitch(switches::kEnableVp8AlphaPlayback) && | |
112 config.codec() == kCodecVP8 && format_ == VideoFrame::YV12A) { | |
113 can_handle = true; | |
114 } | |
115 if (!can_handle) | |
116 return false; | |
scherkus (not reviewing)
2013/02/22 23:18:01
de-indent by 2
vignesh
2013/02/25 21:51:42
Done.
| |
105 | 117 |
106 CloseDecoder(); | 118 CloseDecoder(); |
107 | 119 |
108 vpx_codec_ = new vpx_codec_ctx(); | 120 vpx_codec_ = new vpx_codec_ctx(); |
109 vpx_codec_dec_cfg_t vpx_config = {0}; | 121 vpx_codec_dec_cfg_t vpx_config = {0}; |
110 vpx_config.w = config.coded_size().width(); | 122 vpx_config.w = config.coded_size().width(); |
111 vpx_config.h = config.coded_size().height(); | 123 vpx_config.h = config.coded_size().height(); |
112 vpx_config.threads = GetThreadCount(); | 124 vpx_config.threads = GetThreadCount(); |
113 | 125 |
114 vpx_codec_err_t status = vpx_codec_dec_init(vpx_codec_, | 126 vpx_codec_err_t status = vpx_codec_dec_init(vpx_codec_, |
115 vpx_codec_vp9_dx(), | 127 config.codec() == kCodecVP9 ? |
128 vpx_codec_vp9_dx() : | |
129 vpx_codec_vp8_dx(), | |
116 &vpx_config, | 130 &vpx_config, |
117 0); | 131 0); |
118 if (status != VPX_CODEC_OK) { | 132 if (status != VPX_CODEC_OK) { |
119 LOG(ERROR) << "vpx_codec_dec_init failed, status=" << status; | 133 LOG(ERROR) << "vpx_codec_dec_init failed, status=" << status; |
120 delete vpx_codec_; | 134 delete vpx_codec_; |
121 vpx_codec_ = NULL; | 135 vpx_codec_ = NULL; |
122 return false; | 136 return false; |
123 } | 137 } |
124 | 138 |
139 if(format_ == VideoFrame::YV12A) { | |
scherkus (not reviewing)
2013/02/22 23:18:01
add space between if and (
vignesh
2013/02/25 21:51:42
Done.
| |
140 vpx_codec_alpha_ = new vpx_codec_ctx(); | |
141 vpx_codec_dec_cfg_t vpx_config_alpha = {0}; | |
142 | |
143 vpx_config_alpha.w = config.coded_size().width(); | |
144 vpx_config_alpha.h = config.coded_size().height(); | |
145 vpx_config_alpha.threads = GetThreadCount(); | |
146 | |
147 status = vpx_codec_dec_init(vpx_codec_alpha_, | |
148 vpx_codec_vp8_dx(), | |
149 &vpx_config_alpha, | |
150 0); | |
151 if (status != VPX_CODEC_OK) { | |
152 LOG(ERROR) << "vpx_codec_dec_init failed, status=" << status; | |
153 delete vpx_codec_alpha_; | |
154 vpx_codec_alpha_ = NULL; | |
155 return false; | |
156 } | |
157 } | |
158 | |
125 return true; | 159 return true; |
126 } | 160 } |
127 | 161 |
128 void VpxVideoDecoder::CloseDecoder() { | 162 void VpxVideoDecoder::CloseDecoder() { |
129 if (vpx_codec_) { | 163 if (vpx_codec_) { |
130 vpx_codec_destroy(vpx_codec_); | 164 vpx_codec_destroy(vpx_codec_); |
131 delete vpx_codec_; | 165 delete vpx_codec_; |
132 vpx_codec_ = NULL; | 166 vpx_codec_ = NULL; |
133 } | 167 } |
168 if (vpx_codec_alpha_) { | |
169 vpx_codec_destroy(vpx_codec_alpha_); | |
170 delete vpx_codec_alpha_; | |
171 vpx_codec_alpha_ = NULL; | |
172 } | |
134 } | 173 } |
135 | 174 |
136 void VpxVideoDecoder::Read(const ReadCB& read_cb) { | 175 void VpxVideoDecoder::Read(const ReadCB& read_cb) { |
137 DCHECK(message_loop_->BelongsToCurrentThread()); | 176 DCHECK(message_loop_->BelongsToCurrentThread()); |
138 DCHECK(!read_cb.is_null()); | 177 DCHECK(!read_cb.is_null()); |
139 CHECK_NE(state_, kUninitialized); | 178 CHECK_NE(state_, kUninitialized); |
140 CHECK(read_cb_.is_null()) << "Overlapping decodes are not supported."; | 179 CHECK(read_cb_.is_null()) << "Overlapping decodes are not supported."; |
141 read_cb_ = BindToCurrentLoop(read_cb); | 180 read_cb_ = BindToCurrentLoop(read_cb); |
142 | 181 |
143 // Return empty frames if decoding has finished. | 182 // Return empty frames if decoding has finished. |
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239 } | 278 } |
240 | 279 |
241 scoped_refptr<VideoFrame> video_frame; | 280 scoped_refptr<VideoFrame> video_frame; |
242 if (!Decode(buffer, &video_frame)) { | 281 if (!Decode(buffer, &video_frame)) { |
243 state_ = kDecodeFinished; | 282 state_ = kDecodeFinished; |
244 base::ResetAndReturn(&read_cb_).Run(kDecodeError, NULL); | 283 base::ResetAndReturn(&read_cb_).Run(kDecodeError, NULL); |
245 return; | 284 return; |
246 } | 285 } |
247 | 286 |
248 // Any successful decode counts! | 287 // Any successful decode counts! |
249 if (buffer->GetDataSize()) { | 288 if (buffer->GetDataSize() && buffer->GetSideDataSize()) { |
250 PipelineStatistics statistics; | 289 PipelineStatistics statistics; |
251 statistics.video_bytes_decoded = buffer->GetDataSize(); | 290 statistics.video_bytes_decoded = buffer->GetDataSize(); |
252 statistics_cb_.Run(statistics); | 291 statistics_cb_.Run(statistics); |
253 } | 292 } |
254 | 293 |
255 // If we didn't get a frame we need more data. | 294 // If we didn't get a frame we need more data. |
256 if (!video_frame) { | 295 if (!video_frame) { |
257 ReadFromDemuxerStream(); | 296 ReadFromDemuxerStream(); |
258 return; | 297 return; |
259 } | 298 } |
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286 if (!vpx_image) { | 325 if (!vpx_image) { |
287 *video_frame = NULL; | 326 *video_frame = NULL; |
288 return true; | 327 return true; |
289 } | 328 } |
290 | 329 |
291 if (vpx_image->user_priv != reinterpret_cast<void*>(×tamp)) { | 330 if (vpx_image->user_priv != reinterpret_cast<void*>(×tamp)) { |
292 LOG(ERROR) << "Invalid output timestamp."; | 331 LOG(ERROR) << "Invalid output timestamp."; |
293 return false; | 332 return false; |
294 } | 333 } |
295 | 334 |
296 CopyVpxImageTo(vpx_image, video_frame); | 335 const vpx_image_t* vpx_image_alpha = NULL; |
336 if(format_ == VideoFrame::YV12A) { | |
scherkus (not reviewing)
2013/02/22 23:18:01
add space between if and (
vignesh
2013/02/25 21:51:42
Done.
| |
337 | |
scherkus (not reviewing)
2013/02/22 23:18:01
nit: remove extra blank line
vignesh
2013/02/25 21:51:42
Done.
| |
338 // Pass alpha data to libvpx. | |
339 int64 timestamp_alpha = buffer->GetTimestamp().InMicroseconds(); | |
340 void* user_priv_alpha = reinterpret_cast<void*>(×tamp_alpha); | |
341 const uint8* side_data_id_buf = buffer->GetSideData(); | |
342 uint64_t side_data_id = side_data_id_buf[0]; | |
343 for (size_t i = 1; i < 8; ++i) { | |
scherkus (not reviewing)
2013/02/22 23:18:01
what's all this stuff doing?
vignesh
2013/02/25 21:51:42
first 8 bytes of side_data is side_data_id in big
| |
344 side_data_id <<= 8; | |
345 side_data_id |= side_data_id_buf[i]; | |
346 } | |
347 if (side_data_id == 1) { | |
348 status = vpx_codec_decode(vpx_codec_alpha_, | |
349 buffer->GetSideData() + 8, | |
scherkus (not reviewing)
2013/02/22 23:18:01
what's the magic +8 for?
vignesh
2013/02/25 21:51:42
first 8 bytes of side_data is side_data_id and the
| |
350 buffer->GetSideDataSize() - 8, | |
351 user_priv_alpha, | |
352 0); | |
353 | |
354 if (status != VPX_CODEC_OK) { | |
355 LOG(ERROR) << "vpx_codec_decode() failed on alpha, status=" << status; | |
356 return false; | |
357 } | |
358 | |
359 // Gets pointer to decoded data. | |
360 vpx_codec_iter_t iter_alpha = NULL; | |
361 vpx_image_alpha = vpx_codec_get_frame(vpx_codec_alpha_, &iter_alpha); | |
362 if (!vpx_image_alpha) { | |
363 *video_frame = NULL; | |
364 return true; | |
365 } | |
366 | |
367 if (vpx_image_alpha->user_priv != | |
368 reinterpret_cast<void*>(×tamp_alpha)) { | |
369 LOG(ERROR) << "Invalid output timestamp on alpha."; | |
370 return false; | |
371 } | |
372 } | |
373 } | |
374 | |
375 CopyVpxImageTo(vpx_image, vpx_image_alpha, video_frame); | |
297 (*video_frame)->SetTimestamp(base::TimeDelta::FromMicroseconds(timestamp)); | 376 (*video_frame)->SetTimestamp(base::TimeDelta::FromMicroseconds(timestamp)); |
298 return true; | 377 return true; |
299 } | 378 } |
300 | 379 |
301 void VpxVideoDecoder::DoReset() { | 380 void VpxVideoDecoder::DoReset() { |
302 DCHECK(read_cb_.is_null()); | 381 DCHECK(read_cb_.is_null()); |
303 | 382 |
304 state_ = kNormal; | 383 state_ = kNormal; |
305 reset_cb_.Run(); | 384 reset_cb_.Run(); |
306 reset_cb_.Reset(); | 385 reset_cb_.Reset(); |
307 } | 386 } |
308 | 387 |
309 void VpxVideoDecoder::CopyVpxImageTo( | 388 void VpxVideoDecoder::CopyVpxImageTo( |
310 const vpx_image* vpx_image, | 389 const struct vpx_image* vpx_image, |
390 const struct vpx_image* vpx_image_alpha, | |
311 scoped_refptr<VideoFrame>* video_frame) { | 391 scoped_refptr<VideoFrame>* video_frame) { |
312 CHECK(vpx_image); | 392 CHECK(vpx_image); |
313 CHECK_EQ(vpx_image->d_w % 2, 0U); | 393 CHECK_EQ(vpx_image->d_w % 2, 0U); |
314 CHECK_EQ(vpx_image->d_h % 2, 0U); | 394 CHECK_EQ(vpx_image->d_h % 2, 0U); |
315 CHECK(vpx_image->fmt == VPX_IMG_FMT_I420 || | 395 CHECK(vpx_image->fmt == VPX_IMG_FMT_I420 || |
316 vpx_image->fmt == VPX_IMG_FMT_YV12); | 396 vpx_image->fmt == VPX_IMG_FMT_YV12); |
317 | 397 |
318 gfx::Size size(vpx_image->d_w, vpx_image->d_h); | 398 gfx::Size size(vpx_image->d_w, vpx_image->d_h); |
319 gfx::Size natural_size = | 399 gfx::Size natural_size = |
320 demuxer_stream_->video_decoder_config().natural_size(); | 400 demuxer_stream_->video_decoder_config().natural_size(); |
321 | 401 |
322 *video_frame = VideoFrame::CreateFrame(VideoFrame::YV12, | 402 *video_frame = VideoFrame::CreateFrame(format_, |
323 size, | 403 size, |
324 gfx::Rect(size), | 404 gfx::Rect(size), |
325 natural_size, | 405 natural_size, |
326 kNoTimestamp()); | 406 kNoTimestamp()); |
407 | |
327 CopyYPlane(vpx_image->planes[VPX_PLANE_Y], | 408 CopyYPlane(vpx_image->planes[VPX_PLANE_Y], |
328 vpx_image->stride[VPX_PLANE_Y], | 409 vpx_image->stride[VPX_PLANE_Y], |
329 vpx_image->d_h, | 410 vpx_image->d_h, |
330 *video_frame); | 411 *video_frame); |
331 CopyUPlane(vpx_image->planes[VPX_PLANE_U], | 412 CopyUPlane(vpx_image->planes[VPX_PLANE_U], |
332 vpx_image->stride[VPX_PLANE_U], | 413 vpx_image->stride[VPX_PLANE_U], |
333 vpx_image->d_h / 2, | 414 vpx_image->d_h / 2, |
334 *video_frame); | 415 *video_frame); |
335 CopyVPlane(vpx_image->planes[VPX_PLANE_V], | 416 CopyVPlane(vpx_image->planes[VPX_PLANE_V], |
336 vpx_image->stride[VPX_PLANE_V], | 417 vpx_image->stride[VPX_PLANE_V], |
337 vpx_image->d_h / 2, | 418 vpx_image->d_h / 2, |
338 *video_frame); | 419 *video_frame); |
420 if(format_ == VideoFrame::YV12A) { | |
scherkus (not reviewing)
2013/02/22 23:18:01
add space between if and (
vignesh
2013/02/25 21:51:42
Done.
| |
421 if(vpx_image_alpha) { | |
scherkus (not reviewing)
2013/02/22 23:18:01
are we guaranteed to always produce an alpha image
vignesh
2013/02/25 21:51:42
yes. because there could be video files with no al
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422 CopyAPlane(vpx_image_alpha->planes[VPX_PLANE_Y], | |
423 vpx_image->stride[VPX_PLANE_Y], | |
424 vpx_image->d_h, | |
425 *video_frame); | |
426 } else { | |
427 /* there is no alpha. set it to opaque */ | |
scherkus (not reviewing)
2013/02/22 23:18:01
use // for comments
vignesh
2013/02/25 21:51:42
Done.
| |
428 uint64_t alpha_plane_size = vpx_image->stride[VPX_PLANE_Y] * | |
429 vpx_image->d_h; | |
430 unsigned char* alpha_plane = static_cast<unsigned char*>( | |
431 malloc(alpha_plane_size)); | |
scherkus (not reviewing)
2013/02/22 23:18:01
this seems a bit silly: we're allocating a frame,
vignesh
2013/02/25 21:51:42
Adding a ClearAPlane function. Although, the notio
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432 memset(alpha_plane, 255, alpha_plane_size); | |
433 CopyAPlane(alpha_plane, | |
434 vpx_image->stride[VPX_PLANE_Y], | |
435 vpx_image->d_h, | |
436 *video_frame); | |
437 free(alpha_plane); | |
438 } | |
439 } | |
339 } | 440 } |
340 | 441 |
341 } // namespace media | 442 } // namespace media |
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