New FFmpeg public API headers to match our source tarball in deps.

media/filters/ffmpeg_demuxer_unittest.cc

 // Copyright (c) 2009 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 <deque>
 
 #include "base/singleton.h"
 #include "base/tuple.h"
 #include "media/base/filter_host.h"
 #include "media/base/filters.h"
@@ skipping 125 matching lines @@
   EXPECT_EQ(&g_format, format);
   return g_av_find_stream_info;
 }
 
 int64 av_rescale_q(int64 a, AVRational bq, AVRational cq) {
   int64 num = bq.num * cq.den;
   int64 den = cq.num * bq.den;
   return a * num / den;
 }
 
+void av_free_packet(AVPacket* packet) {
+  if (packet->destruct) {
+    packet->destruct(packet);
+    packet->data = NULL;
+    packet->size = 0;
+  }
+}
+
 void DestructPacket(AVPacket* packet) {
   delete [] packet->data;
   --g_outstanding_packets_av_new_frame;
 }
 
 int av_new_packet(AVPacket* packet, int size) {
   memset(packet, 0, sizeof(*packet));
   packet->data = new uint8[size];
   packet->size = size;
   packet->destruct = &DestructPacket;
@@ skipping 513 matching lines @@
   EXPECT_TRUE(PacketQueue::get()->WaitForOutstandingPackets(0));
   EXPECT_EQ(1, g_outstanding_packets_av_new_frame);
 
   // Now release our reference, which should destruct the packet allocated by
   // av_new_packet().
   reader = NULL;
   EXPECT_EQ(0, g_outstanding_packets_av_new_frame);
 }
 
 }  // namespace