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Side by Side Diff: media/mojo/services/demuxer_stream_provider_shim.cc

Issue 2491043003: MediaResource refactoring to support multiple streams (Closed)
Patch Set: rebase Created 3 years, 10 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "media/mojo/services/demuxer_stream_provider_shim.h"
6
7 #include <utility>
8
9 #include "base/bind.h"
10 #include "base/bind_helpers.h"
11 #include "base/callback_helpers.h"
12
13 namespace media {
14
15 DemuxerStreamProviderShim::DemuxerStreamProviderShim(
16 std::vector<mojom::DemuxerStreamPtr> streams,
17 const base::Closure& demuxer_ready_cb)
18 : demuxer_ready_cb_(demuxer_ready_cb),
19 streams_ready_(0),
20 weak_factory_(this) {
21 DCHECK(!streams.empty());
22 DCHECK(!demuxer_ready_cb_.is_null());
23
24 for (auto& s : streams) {
25 streams_.emplace_back(new MojoDemuxerStreamAdapter(
26 std::move(s), base::Bind(&DemuxerStreamProviderShim::OnStreamReady,
27 weak_factory_.GetWeakPtr())));
28 }
29 }
30
31 DemuxerStreamProviderShim::~DemuxerStreamProviderShim() {
32 }
33
34 // This function returns only the first stream of the given |type| for now.
35 // TODO(servolk): Make this work with multiple streams.
36 DemuxerStream* DemuxerStreamProviderShim::GetStream(DemuxerStream::Type type) {
37 DCHECK(demuxer_ready_cb_.is_null());
38 for (auto& stream : streams_) {
39 if (stream->type() == type)
40 return stream.get();
41 }
42
43 return nullptr;
44 }
45
46 void DemuxerStreamProviderShim::OnStreamReady() {
47 if (++streams_ready_ == streams_.size())
48 base::ResetAndReturn(&demuxer_ready_cb_).Run();
49 }
50
51 } // namespace media
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