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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/base/stream_parser_buffer.h" | 5 #include "media/base/stream_parser_buffer.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "media/base/buffers.h" | 8 #include "media/base/buffers.h" |
| 9 | 9 |
| 10 namespace media { | 10 namespace media { |
| 11 | 11 |
| 12 static scoped_refptr<StreamParserBuffer> CopyBuffer( | 12 static scoped_refptr<StreamParserBuffer> CopyBuffer( |
| 13 const StreamParserBuffer& buffer) { | 13 const StreamParserBuffer& buffer) { |
| 14 if (buffer.end_of_stream()) | 14 if (buffer.end_of_stream()) |
| 15 return StreamParserBuffer::CreateEOSBuffer(); | 15 return StreamParserBuffer::CreateEOSBuffer(); |
| 16 | 16 |
| 17 scoped_refptr<StreamParserBuffer> copied_buffer = | 17 scoped_refptr<StreamParserBuffer> copied_buffer = |
| 18 StreamParserBuffer::CopyFrom(buffer.data(), | 18 StreamParserBuffer::CopyFrom(buffer.data(), |
| 19 buffer.data_size(), | 19 buffer.data_size(), |
| 20 buffer.side_data(), | 20 buffer.side_data(), |
| 21 buffer.side_data_size(), | 21 buffer.side_data_size(), |
| 22 buffer.IsKeyframe(), | 22 buffer.is_key_frame(), |
| 23 buffer.type(), | 23 buffer.type(), |
| 24 buffer.track_id()); | 24 buffer.track_id()); |
| 25 copied_buffer->SetDecodeTimestamp(buffer.GetDecodeTimestamp()); | 25 copied_buffer->SetDecodeTimestamp(buffer.GetDecodeTimestamp()); |
| 26 copied_buffer->SetConfigId(buffer.GetConfigId()); | 26 copied_buffer->SetConfigId(buffer.GetConfigId()); |
| 27 copied_buffer->set_timestamp(buffer.timestamp()); | 27 copied_buffer->set_timestamp(buffer.timestamp()); |
| 28 copied_buffer->set_duration(buffer.duration()); | 28 copied_buffer->set_duration(buffer.duration()); |
| 29 copied_buffer->set_discard_padding(buffer.discard_padding()); | 29 copied_buffer->set_discard_padding(buffer.discard_padding()); |
| 30 copied_buffer->set_splice_timestamp(buffer.splice_timestamp()); | 30 copied_buffer->set_splice_timestamp(buffer.splice_timestamp()); |
| 31 const DecryptConfig* decrypt_config = buffer.decrypt_config(); | 31 const DecryptConfig* decrypt_config = buffer.decrypt_config(); |
| 32 if (decrypt_config) { | 32 if (decrypt_config) { |
| 33 copied_buffer->set_decrypt_config( | 33 copied_buffer->set_decrypt_config( |
| 34 make_scoped_ptr(new DecryptConfig(decrypt_config->key_id(), | 34 make_scoped_ptr(new DecryptConfig(decrypt_config->key_id(), |
| 35 decrypt_config->iv(), | 35 decrypt_config->iv(), |
| 36 decrypt_config->subsamples()))); | 36 decrypt_config->subsamples()))); |
| 37 } | 37 } |
| 38 | 38 |
| 39 return copied_buffer; | 39 return copied_buffer; |
| 40 } | 40 } |
| 41 | 41 |
| 42 scoped_refptr<StreamParserBuffer> StreamParserBuffer::CreateEOSBuffer() { | 42 scoped_refptr<StreamParserBuffer> StreamParserBuffer::CreateEOSBuffer() { |
| 43 return make_scoped_refptr(new StreamParserBuffer(NULL, 0, NULL, 0, false, | 43 return make_scoped_refptr(new StreamParserBuffer(NULL, 0, NULL, 0, false, |
| 44 DemuxerStream::UNKNOWN, 0)); | 44 DemuxerStream::UNKNOWN, 0)); |
| 45 } | 45 } |
| 46 | 46 |
| 47 scoped_refptr<StreamParserBuffer> StreamParserBuffer::CopyFrom( | 47 scoped_refptr<StreamParserBuffer> StreamParserBuffer::CopyFrom( |
| 48 const uint8* data, int data_size, bool is_keyframe, Type type, | 48 const uint8* data, int data_size, bool is_key_frame, Type type, |
| 49 TrackId track_id) { | 49 TrackId track_id) { |
| 50 return make_scoped_refptr( | 50 return make_scoped_refptr( |
| 51 new StreamParserBuffer(data, data_size, NULL, 0, is_keyframe, type, | 51 new StreamParserBuffer(data, data_size, NULL, 0, is_key_frame, type, |
| 52 track_id)); | 52 track_id)); |
| 53 } | 53 } |
| 54 | 54 |
| 55 scoped_refptr<StreamParserBuffer> StreamParserBuffer::CopyFrom( | 55 scoped_refptr<StreamParserBuffer> StreamParserBuffer::CopyFrom( |
| 56 const uint8* data, int data_size, | 56 const uint8* data, int data_size, |
| 57 const uint8* side_data, int side_data_size, | 57 const uint8* side_data, int side_data_size, |
| 58 bool is_keyframe, Type type, TrackId track_id) { | 58 bool is_key_frame, Type type, TrackId track_id) { |
| 59 return make_scoped_refptr( | 59 return make_scoped_refptr( |
| 60 new StreamParserBuffer(data, data_size, side_data, side_data_size, | 60 new StreamParserBuffer(data, data_size, side_data, side_data_size, |
| 61 is_keyframe, type, track_id)); | 61 is_key_frame, type, track_id)); |
| 62 } | 62 } |
| 63 | 63 |
| 64 DecodeTimestamp StreamParserBuffer::GetDecodeTimestamp() const { | 64 DecodeTimestamp StreamParserBuffer::GetDecodeTimestamp() const { |
| 65 if (decode_timestamp_ == kNoDecodeTimestamp()) | 65 if (decode_timestamp_ == kNoDecodeTimestamp()) |
| 66 return DecodeTimestamp::FromPresentationTime(timestamp()); | 66 return DecodeTimestamp::FromPresentationTime(timestamp()); |
| 67 return decode_timestamp_; | 67 return decode_timestamp_; |
| 68 } | 68 } |
| 69 | 69 |
| 70 void StreamParserBuffer::SetDecodeTimestamp(DecodeTimestamp timestamp) { | 70 void StreamParserBuffer::SetDecodeTimestamp(DecodeTimestamp timestamp) { |
| 71 decode_timestamp_ = timestamp; | 71 decode_timestamp_ = timestamp; |
| 72 if (preroll_buffer_.get()) | 72 if (preroll_buffer_.get()) |
| 73 preroll_buffer_->SetDecodeTimestamp(timestamp); | 73 preroll_buffer_->SetDecodeTimestamp(timestamp); |
| 74 } | 74 } |
| 75 | 75 |
| 76 StreamParserBuffer::StreamParserBuffer(const uint8* data, int data_size, | 76 StreamParserBuffer::StreamParserBuffer(const uint8* data, int data_size, |
| 77 const uint8* side_data, | 77 const uint8* side_data, |
| 78 int side_data_size, bool is_keyframe, | 78 int side_data_size, bool is_key_frame, |
| 79 Type type, TrackId track_id) | 79 Type type, TrackId track_id) |
| 80 : DecoderBuffer(data, data_size, side_data, side_data_size), | 80 : DecoderBuffer(data, data_size, side_data, side_data_size), |
| 81 is_keyframe_(is_keyframe), | |
| 82 decode_timestamp_(kNoDecodeTimestamp()), | 81 decode_timestamp_(kNoDecodeTimestamp()), |
| 83 config_id_(kInvalidConfigId), | 82 config_id_(kInvalidConfigId), |
| 84 type_(type), | 83 type_(type), |
| 85 track_id_(track_id) { | 84 track_id_(track_id) { |
| 86 // TODO(scherkus): Should DataBuffer constructor accept a timestamp and | 85 // TODO(scherkus): Should DataBuffer constructor accept a timestamp and |
| 87 // duration to force clients to set them? Today they end up being zero which | 86 // duration to force clients to set them? Today they end up being zero which |
| 88 // is both a common and valid value and could lead to bugs. | 87 // is both a common and valid value and could lead to bugs. |
| 89 if (data) { | 88 if (data) { |
| 90 set_duration(kNoTimestamp()); | 89 set_duration(kNoTimestamp()); |
| 91 } | 90 } |
| 91 |
| 92 if (is_key_frame) |
| 93 set_is_key_frame(true); |
| 92 } | 94 } |
| 93 | 95 |
| 94 StreamParserBuffer::~StreamParserBuffer() {} | 96 StreamParserBuffer::~StreamParserBuffer() {} |
| 95 | 97 |
| 96 int StreamParserBuffer::GetConfigId() const { | 98 int StreamParserBuffer::GetConfigId() const { |
| 97 return config_id_; | 99 return config_id_; |
| 98 } | 100 } |
| 99 | 101 |
| 100 void StreamParserBuffer::SetConfigId(int config_id) { | 102 void StreamParserBuffer::SetConfigId(int config_id) { |
| 101 config_id_ = config_id; | 103 config_id_ = config_id; |
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| 136 // Move over any preroll from this buffer. | 138 // Move over any preroll from this buffer. |
| 137 if (preroll_buffer_.get()) { | 139 if (preroll_buffer_.get()) { |
| 138 DCHECK(!overlapping_buffer->preroll_buffer_.get()); | 140 DCHECK(!overlapping_buffer->preroll_buffer_.get()); |
| 139 overlapping_buffer->preroll_buffer_.swap(preroll_buffer_); | 141 overlapping_buffer->preroll_buffer_.swap(preroll_buffer_); |
| 140 } | 142 } |
| 141 | 143 |
| 142 // Rewrite |this| buffer as a splice buffer. | 144 // Rewrite |this| buffer as a splice buffer. |
| 143 SetDecodeTimestamp(first_splice_buffer->GetDecodeTimestamp()); | 145 SetDecodeTimestamp(first_splice_buffer->GetDecodeTimestamp()); |
| 144 SetConfigId(first_splice_buffer->GetConfigId()); | 146 SetConfigId(first_splice_buffer->GetConfigId()); |
| 145 set_timestamp(first_splice_buffer->timestamp()); | 147 set_timestamp(first_splice_buffer->timestamp()); |
| 146 is_keyframe_ = first_splice_buffer->IsKeyframe(); | 148 set_is_key_frame(first_splice_buffer->is_key_frame()); |
| 147 type_ = first_splice_buffer->type(); | 149 type_ = first_splice_buffer->type(); |
| 148 track_id_ = first_splice_buffer->track_id(); | 150 track_id_ = first_splice_buffer->track_id(); |
| 149 set_splice_timestamp(overlapping_buffer->timestamp()); | 151 set_splice_timestamp(overlapping_buffer->timestamp()); |
| 150 | 152 |
| 151 // The splice duration is the duration of all buffers before the splice plus | 153 // The splice duration is the duration of all buffers before the splice plus |
| 152 // the highest ending timestamp after the splice point. | 154 // the highest ending timestamp after the splice point. |
| 153 DCHECK(overlapping_buffer->duration() > base::TimeDelta()); | 155 DCHECK(overlapping_buffer->duration() > base::TimeDelta()); |
| 154 DCHECK(pre_splice_buffers.back()->duration() > base::TimeDelta()); | 156 DCHECK(pre_splice_buffers.back()->duration() > base::TimeDelta()); |
| 155 set_duration( | 157 set_duration( |
| 156 std::max(overlapping_buffer->timestamp() + overlapping_buffer->duration(), | 158 std::max(overlapping_buffer->timestamp() + overlapping_buffer->duration(), |
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| 195 std::make_pair(kInfiniteDuration(), base::TimeDelta())); | 197 std::make_pair(kInfiniteDuration(), base::TimeDelta())); |
| 196 } | 198 } |
| 197 | 199 |
| 198 void StreamParserBuffer::set_timestamp(base::TimeDelta timestamp) { | 200 void StreamParserBuffer::set_timestamp(base::TimeDelta timestamp) { |
| 199 DecoderBuffer::set_timestamp(timestamp); | 201 DecoderBuffer::set_timestamp(timestamp); |
| 200 if (preroll_buffer_.get()) | 202 if (preroll_buffer_.get()) |
| 201 preroll_buffer_->set_timestamp(timestamp); | 203 preroll_buffer_->set_timestamp(timestamp); |
| 202 } | 204 } |
| 203 | 205 |
| 204 } // namespace media | 206 } // namespace media |
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