ffmpeg chromium glue

media/filters/ffmpeg_glue.cc

 // Copyright (c) 2011 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/filters/ffmpeg_glue.h"
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "media/base/filters.h"
 #include "media/ffmpeg/ffmpeg_common.h"
 
 namespace media {
 
 static FFmpegURLProtocol* ToProtocol(void* data) {
   return reinterpret_cast<FFmpegURLProtocol*>(data);
 }
 
 // FFmpeg protocol interface.
 static int OpenContext(URLContext* h, const char* filename, int flags) {
   FFmpegURLProtocol* protocol;
   FFmpegGlue::GetInstance()->GetProtocol(filename, &protocol);
   if (!protocol)
-    return AVERROR_IO;
+    return AVERROR(EIO);
 
   h->priv_data = protocol;
   h->flags = URL_RDONLY;
   h->is_streamed = protocol->IsStreaming();
   return 0;
 }
 
 static int ReadContext(URLContext* h, unsigned char* buf, int size) {
   FFmpegURLProtocol* protocol = ToProtocol(h->priv_data);
   int result = protocol->Read(size, buf);
   if (result < 0)
-    result = AVERROR_IO;
+    result = AVERROR(EIO);
   return result;
 }
 
 #if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52, 68, 0)
 static int WriteContext(URLContext* h, const unsigned char* buf, int size) {
 #else
 static int WriteContext(URLContext* h, unsigned char* buf, int size) {
 #endif
   // We don't support writing.
-  return AVERROR_IO;
+  return AVERROR(EIO);
 }
 
 static int64 SeekContext(URLContext* h, int64 offset, int whence) {
   FFmpegURLProtocol* protocol = ToProtocol(h->priv_data);
-  int64 new_offset = AVERROR_IO;
+  int64 new_offset = AVERROR(EIO);
   switch (whence) {
     case SEEK_SET:
       if (protocol->SetPosition(offset))
         protocol->GetPosition(&new_offset);
       break;
 
     case SEEK_CUR:
       int64 pos;
       if (!protocol->GetPosition(&pos))
         break;
@@ skipping 10 matching lines @@
       break;
 
     case AVSEEK_SIZE:
       protocol->GetSize(&new_offset);
       break;
 
     default:
       NOTREACHED();
   }
   if (new_offset < 0)
-    new_offset = AVERROR_IO;
+    new_offset = AVERROR(EIO);
   return new_offset;
 }
 
 static int CloseContext(URLContext* h) {
   h->priv_data = NULL;
   return 0;
 }
 
 static int LockManagerOperation(void** lock, enum AVLockOp op) {
   switch (op) {
@@ skipping 87 matching lines @@
 }
 
 std::string FFmpegGlue::GetProtocolKey(FFmpegURLProtocol* protocol) {
   // Use the FFmpegURLProtocol's memory address to generate the unique string.
   // This also has the nice property that adding the same FFmpegURLProtocol
   // reference will not generate duplicate entries.
   return base::StringPrintf("%s://%p", kProtocol, static_cast<void*>(protocol));
 }
 
 }  // namespace media