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Issue 160076: BufferedDataSource to support server without range request support... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 11 years, 4 months ago
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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2009 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 "base/string_util.h" 5 #include "base/string_util.h"
6 #include "media/base/filters.h" 6 #include "media/base/filters.h"
7 #include "media/filters/ffmpeg_common.h" 7 #include "media/filters/ffmpeg_common.h"
8 #include "media/filters/ffmpeg_glue.h" 8 #include "media/filters/ffmpeg_glue.h"
9 9
10 namespace { 10 namespace {
11 11
12 media::FFmpegURLProtocol* ToProtocol(void* data) { 12 media::FFmpegURLProtocol* ToProtocol(void* data) {
13 return reinterpret_cast<media::FFmpegURLProtocol*>(data); 13 return reinterpret_cast<media::FFmpegURLProtocol*>(data);
14 } 14 }
15 15
16 // FFmpeg protocol interface. 16 // FFmpeg protocol interface.
17 int OpenContext(URLContext* h, const char* filename, int flags) { 17 int OpenContext(URLContext* h, const char* filename, int flags) {
18 media::FFmpegURLProtocol* protocol; 18 media::FFmpegURLProtocol* protocol;
19 media::FFmpegGlue::get()->GetProtocol(filename, &protocol); 19 media::FFmpegGlue::get()->GetProtocol(filename, &protocol);
20 if (!protocol) 20 if (!protocol)
21 return AVERROR_IO; 21 return AVERROR_IO;
22 22
23 h->priv_data = protocol; 23 h->priv_data = protocol;
24 h->flags = URL_RDONLY; 24 h->flags = URL_RDONLY;
25 h->is_streamed = protocol->IsStreamed(); 25 h->is_streamed = protocol->IsStreaming();
26 return 0; 26 return 0;
27 } 27 }
28 28
29 int ReadContext(URLContext* h, unsigned char* buf, int size) { 29 int ReadContext(URLContext* h, unsigned char* buf, int size) {
30 media::FFmpegURLProtocol* protocol = ToProtocol(h->priv_data); 30 media::FFmpegURLProtocol* protocol = ToProtocol(h->priv_data);
31 int result = protocol->Read(size, buf); 31 int result = protocol->Read(size, buf);
32 if (result < 0) 32 if (result < 0)
33 result = AVERROR_IO; 33 result = AVERROR_IO;
34 return result; 34 return result;
35 } 35 }
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145 } 145 }
146 146
147 std::string FFmpegGlue::GetProtocolKey(FFmpegURLProtocol* protocol) { 147 std::string FFmpegGlue::GetProtocolKey(FFmpegURLProtocol* protocol) {
148 // Use the FFmpegURLProtocol's memory address to generate the unique string. 148 // Use the FFmpegURLProtocol's memory address to generate the unique string.
149 // This also has the nice property that adding the same FFmpegURLProtocol 149 // This also has the nice property that adding the same FFmpegURLProtocol
150 // reference will not generate duplicate entries. 150 // reference will not generate duplicate entries.
151 return StringPrintf("%s://0x%lx", kProtocol, static_cast<void*>(protocol)); 151 return StringPrintf("%s://0x%lx", kProtocol, static_cast<void*>(protocol));
152 } 152 }
153 153
154 } // namespace media 154 } // namespace media
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