https://bugs.gentoo.org/show_bug.cgi?id=423671
fixed compile newer ffmepg

signed-of-by: Joerg Bornkessel <hd_brummy@gentoo.org> (2012/07/01)
diff -Naur audiorecorder-0.1.0-pre14.orig/convert.c audiorecorder-0.1.0-pre14/convert.c
--- audiorecorder-0.1.0-pre14.orig/convert.c	2012-07-01 11:38:56.000000000 +0200
+++ audiorecorder-0.1.0-pre14/convert.c	2012-07-01 11:41:12.000000000 +0200
@@ -111,9 +111,13 @@
         avcodec_decode_audio(decoder_ctx, (short *)decoder_buf.data,
                 &decoder_buf.length, mpa_frame->data, mpa_frame->length);
 #else
+        AVPacket avpkt;
+        av_init_packet(&avpkt);
+        avpkt.data = mpa_frame->data;
+        avpkt.size = mpa_frame->length;
         decoder_buf.length = AVCODEC_MAX_AUDIO_FRAME_SIZE;
-        avcodec_decode_audio2(decoder_ctx, (short *)decoder_buf.data,
-                &decoder_buf.length, mpa_frame->data, mpa_frame->length);
+        int len = avcodec_decode_audio3(decoder_ctx, (short *)decoder_buf.data,
+                &decoder_buf.length, &avpkt);
 #endif
 }