OLD | NEW |
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 "webkit/plugins/ppapi/content_decryptor_delegate.h" | 5 #include "webkit/plugins/ppapi/content_decryptor_delegate.h" |
6 | 6 |
7 #include "base/callback_helpers.h" | 7 #include "base/callback_helpers.h" |
8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
9 #include "base/message_loop/message_loop_proxy.h" | 9 #include "base/message_loop/message_loop_proxy.h" |
10 #include "base/safe_numerics.h" | 10 #include "base/safe_numerics.h" |
(...skipping 76 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
87 static bool MakeEncryptedBlockInfo( | 87 static bool MakeEncryptedBlockInfo( |
88 const scoped_refptr<media::DecoderBuffer>& encrypted_buffer, | 88 const scoped_refptr<media::DecoderBuffer>& encrypted_buffer, |
89 uint32_t request_id, | 89 uint32_t request_id, |
90 PP_EncryptedBlockInfo* block_info) { | 90 PP_EncryptedBlockInfo* block_info) { |
91 // TODO(xhwang): Fix initialization of PP_EncryptedBlockInfo here and | 91 // TODO(xhwang): Fix initialization of PP_EncryptedBlockInfo here and |
92 // anywhere else. | 92 // anywhere else. |
93 memset(block_info, 0, sizeof(*block_info)); | 93 memset(block_info, 0, sizeof(*block_info)); |
94 block_info->tracking_info.request_id = request_id; | 94 block_info->tracking_info.request_id = request_id; |
95 | 95 |
96 // EOS buffers need a request ID and nothing more. | 96 // EOS buffers need a request ID and nothing more. |
97 if (encrypted_buffer->IsEndOfStream()) | 97 if (encrypted_buffer->end_of_stream()) |
98 return true; | 98 return true; |
99 | 99 |
100 DCHECK(encrypted_buffer->GetDataSize()) | 100 DCHECK(encrypted_buffer->data_size()) |
101 << "DecryptConfig is set on an empty buffer"; | 101 << "DecryptConfig is set on an empty buffer"; |
102 | 102 |
103 block_info->tracking_info.timestamp = | 103 block_info->tracking_info.timestamp = |
104 encrypted_buffer->GetTimestamp().InMicroseconds(); | 104 encrypted_buffer->timestamp().InMicroseconds(); |
105 block_info->data_size = encrypted_buffer->GetDataSize(); | 105 block_info->data_size = encrypted_buffer->data_size(); |
106 | 106 |
107 const media::DecryptConfig* decrypt_config = | 107 const media::DecryptConfig* decrypt_config = |
108 encrypted_buffer->GetDecryptConfig(); | 108 encrypted_buffer->decrypt_config(); |
109 block_info->data_offset = decrypt_config->data_offset(); | 109 block_info->data_offset = decrypt_config->data_offset(); |
110 | 110 |
111 if (!CopyStringToArray(decrypt_config->key_id(), block_info->key_id) || | 111 if (!CopyStringToArray(decrypt_config->key_id(), block_info->key_id) || |
112 !CopyStringToArray(decrypt_config->iv(), block_info->iv)) | 112 !CopyStringToArray(decrypt_config->iv(), block_info->iv)) |
113 return false; | 113 return false; |
114 | 114 |
115 block_info->key_id_size = decrypt_config->key_id().size(); | 115 block_info->key_id_size = decrypt_config->key_id().size(); |
116 block_info->iv_size = decrypt_config->iv().size(); | 116 block_info->iv_size = decrypt_config->iv().size(); |
117 | 117 |
118 if (decrypt_config->subsamples().size() > arraysize(block_info->subsamples)) | 118 if (decrypt_config->subsamples().size() > arraysize(block_info->subsamples)) |
(...skipping 194 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
313 stream_type, encrypted_buffer, &encrypted_resource) || | 313 stream_type, encrypted_buffer, &encrypted_resource) || |
314 !encrypted_resource.get()) { | 314 !encrypted_resource.get()) { |
315 return false; | 315 return false; |
316 } | 316 } |
317 ScopedPPResource pp_resource(encrypted_resource.get()); | 317 ScopedPPResource pp_resource(encrypted_resource.get()); |
318 | 318 |
319 const uint32_t request_id = next_decryption_request_id_++; | 319 const uint32_t request_id = next_decryption_request_id_++; |
320 DVLOG(2) << "Decrypt() - request_id " << request_id; | 320 DVLOG(2) << "Decrypt() - request_id " << request_id; |
321 | 321 |
322 PP_EncryptedBlockInfo block_info = {}; | 322 PP_EncryptedBlockInfo block_info = {}; |
323 DCHECK(encrypted_buffer->GetDecryptConfig()); | 323 DCHECK(encrypted_buffer->decrypt_config()); |
324 if (!MakeEncryptedBlockInfo(encrypted_buffer, request_id, &block_info)) { | 324 if (!MakeEncryptedBlockInfo(encrypted_buffer, request_id, &block_info)) { |
325 return false; | 325 return false; |
326 } | 326 } |
327 | 327 |
328 // There is only one pending decrypt request at any time per stream. This is | 328 // There is only one pending decrypt request at any time per stream. This is |
329 // enforced by the media pipeline. | 329 // enforced by the media pipeline. |
330 switch (stream_type) { | 330 switch (stream_type) { |
331 case media::Decryptor::kAudio: | 331 case media::Decryptor::kAudio: |
332 DCHECK_EQ(pending_audio_decrypt_request_id_, 0u); | 332 DCHECK_EQ(pending_audio_decrypt_request_id_, 0u); |
333 DCHECK(pending_audio_decrypt_cb_.is_null()); | 333 DCHECK(pending_audio_decrypt_cb_.is_null()); |
(...skipping 155 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
489 // because there is only one pending audio decode request at any time. | 489 // because there is only one pending audio decode request at any time. |
490 // This is enforced by the media pipeline. | 490 // This is enforced by the media pipeline. |
491 scoped_refptr<PPB_Buffer_Impl> encrypted_resource; | 491 scoped_refptr<PPB_Buffer_Impl> encrypted_resource; |
492 if (!MakeMediaBufferResource(media::Decryptor::kAudio, | 492 if (!MakeMediaBufferResource(media::Decryptor::kAudio, |
493 encrypted_buffer, | 493 encrypted_buffer, |
494 &encrypted_resource)) { | 494 &encrypted_resource)) { |
495 return false; | 495 return false; |
496 } | 496 } |
497 | 497 |
498 // The resource should not be NULL for non-EOS buffer. | 498 // The resource should not be NULL for non-EOS buffer. |
499 if (!encrypted_buffer->IsEndOfStream() && !encrypted_resource.get()) | 499 if (!encrypted_buffer->end_of_stream() && !encrypted_resource.get()) |
500 return false; | 500 return false; |
501 | 501 |
502 const uint32_t request_id = next_decryption_request_id_++; | 502 const uint32_t request_id = next_decryption_request_id_++; |
503 DVLOG(2) << "DecryptAndDecodeAudio() - request_id " << request_id; | 503 DVLOG(2) << "DecryptAndDecodeAudio() - request_id " << request_id; |
504 | 504 |
505 PP_EncryptedBlockInfo block_info = {}; | 505 PP_EncryptedBlockInfo block_info = {}; |
506 if (!MakeEncryptedBlockInfo(encrypted_buffer, request_id, &block_info)) { | 506 if (!MakeEncryptedBlockInfo(encrypted_buffer, request_id, &block_info)) { |
507 return false; | 507 return false; |
508 } | 508 } |
509 | 509 |
(...skipping 23 matching lines...) Expand all Loading... |
533 // because there is only one pending video decode request at any time. | 533 // because there is only one pending video decode request at any time. |
534 // This is enforced by the media pipeline. | 534 // This is enforced by the media pipeline. |
535 scoped_refptr<PPB_Buffer_Impl> encrypted_resource; | 535 scoped_refptr<PPB_Buffer_Impl> encrypted_resource; |
536 if (!MakeMediaBufferResource(media::Decryptor::kVideo, | 536 if (!MakeMediaBufferResource(media::Decryptor::kVideo, |
537 encrypted_buffer, | 537 encrypted_buffer, |
538 &encrypted_resource)) { | 538 &encrypted_resource)) { |
539 return false; | 539 return false; |
540 } | 540 } |
541 | 541 |
542 // The resource should not be 0 for non-EOS buffer. | 542 // The resource should not be 0 for non-EOS buffer. |
543 if (!encrypted_buffer->IsEndOfStream() && !encrypted_resource.get()) | 543 if (!encrypted_buffer->end_of_stream() && !encrypted_resource.get()) |
544 return false; | 544 return false; |
545 | 545 |
546 const uint32_t request_id = next_decryption_request_id_++; | 546 const uint32_t request_id = next_decryption_request_id_++; |
547 DVLOG(2) << "DecryptAndDecodeVideo() - request_id " << request_id; | 547 DVLOG(2) << "DecryptAndDecodeVideo() - request_id " << request_id; |
548 TRACE_EVENT_ASYNC_BEGIN0( | 548 TRACE_EVENT_ASYNC_BEGIN0( |
549 "eme", "ContentDecryptorDelegate::DecryptAndDecodeVideo", request_id); | 549 "eme", "ContentDecryptorDelegate::DecryptAndDecodeVideo", request_id); |
550 | 550 |
551 PP_EncryptedBlockInfo block_info = {}; | 551 PP_EncryptedBlockInfo block_info = {}; |
552 if (!MakeEncryptedBlockInfo(encrypted_buffer, request_id, &block_info)) { | 552 if (!MakeEncryptedBlockInfo(encrypted_buffer, request_id, &block_info)) { |
553 return false; | 553 return false; |
(...skipping 177 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
731 mapper.size() < block_info->data_size) { | 731 mapper.size() < block_info->data_size) { |
732 decrypt_cb.Run(media::Decryptor::kError, NULL); | 732 decrypt_cb.Run(media::Decryptor::kError, NULL); |
733 return; | 733 return; |
734 } | 734 } |
735 | 735 |
736 // TODO(tomfinegan): Find a way to take ownership of the shared memory | 736 // TODO(tomfinegan): Find a way to take ownership of the shared memory |
737 // managed by the PPB_Buffer_Dev, and avoid the extra copy. | 737 // managed by the PPB_Buffer_Dev, and avoid the extra copy. |
738 scoped_refptr<media::DecoderBuffer> decrypted_buffer( | 738 scoped_refptr<media::DecoderBuffer> decrypted_buffer( |
739 media::DecoderBuffer::CopyFrom( | 739 media::DecoderBuffer::CopyFrom( |
740 static_cast<uint8*>(mapper.data()), block_info->data_size)); | 740 static_cast<uint8*>(mapper.data()), block_info->data_size)); |
741 decrypted_buffer->SetTimestamp(base::TimeDelta::FromMicroseconds( | 741 decrypted_buffer->set_timestamp(base::TimeDelta::FromMicroseconds( |
742 block_info->tracking_info.timestamp)); | 742 block_info->tracking_info.timestamp)); |
743 decrypt_cb.Run(media::Decryptor::kSuccess, decrypted_buffer); | 743 decrypt_cb.Run(media::Decryptor::kSuccess, decrypted_buffer); |
744 } | 744 } |
745 | 745 |
746 // Use a non-class-member function here so that if for some reason | 746 // Use a non-class-member function here so that if for some reason |
747 // ContentDecryptorDelegate is destroyed before VideoFrame calls this callback, | 747 // ContentDecryptorDelegate is destroyed before VideoFrame calls this callback, |
748 // we can still get the shared memory unmapped. | 748 // we can still get the shared memory unmapped. |
749 static void BufferNoLongerNeeded( | 749 static void BufferNoLongerNeeded( |
750 const scoped_refptr<PPB_Buffer_Impl>& ppb_buffer, | 750 const scoped_refptr<PPB_Buffer_Impl>& ppb_buffer, |
751 base::Closure buffer_no_longer_needed_cb) { | 751 base::Closure buffer_no_longer_needed_cb) { |
(...skipping 160 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
912 } | 912 } |
913 } | 913 } |
914 | 914 |
915 bool ContentDecryptorDelegate::MakeMediaBufferResource( | 915 bool ContentDecryptorDelegate::MakeMediaBufferResource( |
916 media::Decryptor::StreamType stream_type, | 916 media::Decryptor::StreamType stream_type, |
917 const scoped_refptr<media::DecoderBuffer>& encrypted_buffer, | 917 const scoped_refptr<media::DecoderBuffer>& encrypted_buffer, |
918 scoped_refptr<PPB_Buffer_Impl>* resource) { | 918 scoped_refptr<PPB_Buffer_Impl>* resource) { |
919 TRACE_EVENT0("eme", "ContentDecryptorDelegate::MakeMediaBufferResource"); | 919 TRACE_EVENT0("eme", "ContentDecryptorDelegate::MakeMediaBufferResource"); |
920 | 920 |
921 // End of stream buffers are represented as null resources. | 921 // End of stream buffers are represented as null resources. |
922 if (encrypted_buffer->IsEndOfStream()) { | 922 if (encrypted_buffer->end_of_stream()) { |
923 *resource = NULL; | 923 *resource = NULL; |
924 return true; | 924 return true; |
925 } | 925 } |
926 | 926 |
927 DCHECK(stream_type == media::Decryptor::kAudio || | 927 DCHECK(stream_type == media::Decryptor::kAudio || |
928 stream_type == media::Decryptor::kVideo); | 928 stream_type == media::Decryptor::kVideo); |
929 scoped_refptr<PPB_Buffer_Impl>& media_resource = | 929 scoped_refptr<PPB_Buffer_Impl>& media_resource = |
930 (stream_type == media::Decryptor::kAudio) ? audio_input_resource_ : | 930 (stream_type == media::Decryptor::kAudio) ? audio_input_resource_ : |
931 video_input_resource_; | 931 video_input_resource_; |
932 | 932 |
933 const size_t data_size = static_cast<size_t>(encrypted_buffer->GetDataSize()); | 933 const size_t data_size = static_cast<size_t>(encrypted_buffer->data_size()); |
934 if (!media_resource.get() || media_resource->size() < data_size) { | 934 if (!media_resource.get() || media_resource->size() < data_size) { |
935 // Either the buffer hasn't been created yet, or we have one that isn't big | 935 // Either the buffer hasn't been created yet, or we have one that isn't big |
936 // enough to fit |size| bytes. | 936 // enough to fit |size| bytes. |
937 | 937 |
938 // Media resource size starts from |kMinimumMediaBufferSize| and grows | 938 // Media resource size starts from |kMinimumMediaBufferSize| and grows |
939 // exponentially to avoid frequent re-allocation of PPB_Buffer_Impl, | 939 // exponentially to avoid frequent re-allocation of PPB_Buffer_Impl, |
940 // which is usually expensive. Since input media buffers are compressed, | 940 // which is usually expensive. Since input media buffers are compressed, |
941 // they are usually small (compared to outputs). The over-allocated memory | 941 // they are usually small (compared to outputs). The over-allocated memory |
942 // should be negligible. | 942 // should be negligible. |
943 const uint32_t kMinimumMediaBufferSize = 1024; | 943 const uint32_t kMinimumMediaBufferSize = 1024; |
(...skipping 10 matching lines...) Expand all Loading... |
954 media_resource_size); | 954 media_resource_size); |
955 if (!media_resource.get()) | 955 if (!media_resource.get()) |
956 return false; | 956 return false; |
957 } | 957 } |
958 | 958 |
959 BufferAutoMapper mapper(media_resource.get()); | 959 BufferAutoMapper mapper(media_resource.get()); |
960 if (!mapper.data() || mapper.size() < data_size) { | 960 if (!mapper.data() || mapper.size() < data_size) { |
961 media_resource = NULL; | 961 media_resource = NULL; |
962 return false; | 962 return false; |
963 } | 963 } |
964 memcpy(mapper.data(), encrypted_buffer->GetData(), data_size); | 964 memcpy(mapper.data(), encrypted_buffer->data(), data_size); |
965 | 965 |
966 *resource = media_resource; | 966 *resource = media_resource; |
967 return true; | 967 return true; |
968 } | 968 } |
969 | 969 |
970 void ContentDecryptorDelegate::FreeBuffer(uint32_t buffer_id) { | 970 void ContentDecryptorDelegate::FreeBuffer(uint32_t buffer_id) { |
971 if (buffer_id) | 971 if (buffer_id) |
972 free_buffers_.push(buffer_id); | 972 free_buffers_.push(buffer_id); |
973 } | 973 } |
974 | 974 |
(...skipping 64 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1039 | 1039 |
1040 cur += frame_size; | 1040 cur += frame_size; |
1041 bytes_left -= frame_size; | 1041 bytes_left -= frame_size; |
1042 } while (bytes_left > 0); | 1042 } while (bytes_left > 0); |
1043 | 1043 |
1044 return true; | 1044 return true; |
1045 } | 1045 } |
1046 | 1046 |
1047 } // namespace ppapi | 1047 } // namespace ppapi |
1048 } // namespace webkit | 1048 } // namespace webkit |
OLD | NEW |