Index: media/base/bitstream_buffer.h |
diff --git a/media/base/bitstream_buffer.h b/media/base/bitstream_buffer.h |
index 42451cca766886fa5cd64493be7167c2eae072ea..c8983f2e6930837e624423fb764138eab8e86fae 100644 |
--- a/media/base/bitstream_buffer.h |
+++ b/media/base/bitstream_buffer.h |
@@ -24,12 +24,17 @@ class MEDIA_EXPORT BitstreamBuffer { |
public: |
BitstreamBuffer(); |
- BitstreamBuffer(int32_t id, base::SharedMemoryHandle handle, size_t size); |
- |
+ // Constructs a new BitstreamBuffer. The content of the bitstream is located |
+ // at |offset| bytes away from the start of the shared memory and the payload |
+ // is |size| bytes. When not provided, the default value for |offset| is 0. |
+ // |presentation_timestamp| is when the decoded frame should be displayed. |
+ // When not provided, |presentation_timestamp| will be |
+ // |media::kNoTimestamp()|. |
BitstreamBuffer(int32_t id, |
base::SharedMemoryHandle handle, |
size_t size, |
- base::TimeDelta presentation_timestamp); |
+ off_t offset = 0, |
+ base::TimeDelta presentation_timestamp = kNoTimestamp()); |
BitstreamBuffer(const BitstreamBuffer& other); |
@@ -39,15 +44,21 @@ class MEDIA_EXPORT BitstreamBuffer { |
int32_t id() const { return id_; } |
base::SharedMemoryHandle handle() const { return handle_; } |
+ |
+ // The number of bytes of the actual bitstream data. It is the size of the |
+ // content instead of the whole shared memory. |
size_t size() const { return size_; } |
- void set_handle(const base::SharedMemoryHandle& handle) { handle_ = handle; } |
+ // The offset to the start of actual bitstream data in the shared memory. |
+ off_t offset() const { return offset_; } |
// The timestamp is only valid if it's not equal to |media::kNoTimestamp()|. |
base::TimeDelta presentation_timestamp() const { |
return presentation_timestamp_; |
} |
+ void set_handle(const base::SharedMemoryHandle& handle) { handle_ = handle; } |
+ |
// The following methods come from DecryptConfig. |
const std::string& key_id() const { return key_id_; } |
@@ -58,6 +69,7 @@ class MEDIA_EXPORT BitstreamBuffer { |
int32_t id_; |
base::SharedMemoryHandle handle_; |
size_t size_; |
+ off_t offset_; |
// This is only set when necessary. For example, AndroidVideoDecodeAccelerator |
// needs the timestamp because the underlying decoder may require it to |