blob: 40659bc426f3dcfa088969385e86673c415b270b [file] [log] [blame]
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/bitstream_buffer.h"
#include "media/base/decrypt_config.h"
namespace media {
BitstreamBuffer::BitstreamBuffer()
: BitstreamBuffer(-1, base::subtle::PlatformSharedMemoryRegion(), 0) {}
BitstreamBuffer::BitstreamBuffer(
int32_t id,
base::subtle::PlatformSharedMemoryRegion region,
size_t size,
off_t offset,
base::TimeDelta presentation_timestamp)
: id_(id),
region_(std::move(region)),
size_(size),
offset_(offset),
presentation_timestamp_(presentation_timestamp) {}
BitstreamBuffer::BitstreamBuffer(int32_t id,
base::UnsafeSharedMemoryRegion region,
size_t size,
off_t offset,
base::TimeDelta presentation_timestamp)
: id_(id),
region_(base::UnsafeSharedMemoryRegion::TakeHandleForSerialization(
std::move(region))),
size_(size),
offset_(offset),
presentation_timestamp_(presentation_timestamp) {}
BitstreamBuffer::BitstreamBuffer(int32_t id,
base::SharedMemoryHandle handle,
bool read_only,
size_t size,
off_t offset,
base::TimeDelta presentation_timestamp)
: id_(id),
region_(
base::subtle::PlatformSharedMemoryRegion::TakeFromSharedMemoryHandle(
handle.Duplicate(),
read_only
? base::subtle::PlatformSharedMemoryRegion::Mode::kReadOnly
: base::subtle::PlatformSharedMemoryRegion::Mode::kUnsafe)),
size_(size),
offset_(offset),
presentation_timestamp_(presentation_timestamp) {}
BitstreamBuffer::BitstreamBuffer(BitstreamBuffer&&) = default;
BitstreamBuffer& BitstreamBuffer::operator=(BitstreamBuffer&&) = default;
BitstreamBuffer::~BitstreamBuffer() = default;
scoped_refptr<DecoderBuffer> BitstreamBuffer::ToDecoderBuffer() {
scoped_refptr<DecoderBuffer> buffer =
DecoderBuffer::FromSharedMemoryRegion(std::move(region_), offset_, size_);
if (!buffer)
return nullptr;
buffer->set_timestamp(presentation_timestamp_);
if (!key_id_.empty()) {
buffer->set_decrypt_config(
DecryptConfig::CreateCencConfig(key_id_, iv_, subsamples_));
}
return buffer;
}
void BitstreamBuffer::SetDecryptionSettings(
const std::string& key_id,
const std::string& iv,
const std::vector<SubsampleEntry>& subsamples) {
key_id_ = key_id;
iv_ = iv;
subsamples_ = subsamples;
}
} // namespace media