xrdpvr: compile fix for older ffmpeg

xrdpvr/xrdpvr.c

@@ -162,13 +162,13 @@ xrdpvr_play_media(void *channel, int stream_id, char *filename)
     /* find first audio / video stream */
     for (i = 0; i < g_psi.p_format_ctx->nb_streams; i++)
     {
-        if (g_psi.p_format_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
+        if (g_psi.p_format_ctx->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO &&
                 g_video_index < 0)
         {
             g_video_index = i;
         }
 
-        if (g_psi.p_format_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
+        if (g_psi.p_format_ctx->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO &&
                 g_audio_index < 0)
         {
             g_audio_index = i;
@@ -342,7 +342,7 @@ int xrdpvr_play_frame(void *channel, int stream_id, int *videoTimeout, int *audi
         *audioTimeout = (int) ((dts - g_psi.audioTimeout) * 1000000);
         *videoTimeout = -1;
 
-        if (g_psi.audioTimeout > dts) 
+        if (g_psi.audioTimeout > dts)
         {
             g_psi.audioTimeout = dts;
             delay_in_us = 1000 * 40;
@@ -728,4 +728,3 @@ xrdpvr_write_to_client(void *channel, STREAM *s)
         usleep(1000 * 3);
     }
 }
-

xrdpvr/xrdpvr_internal.h

@@ -26,8 +26,30 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <fcntl.h>
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 
+#if LIBAVCODEC_VERSION_MAJOR == 52 && LIBAVCODEC_VERSION_MINOR == 20
+#define DISTRO_DEBIAN6
+#endif
+
+#if LIBAVCODEC_VERSION_MAJOR == 52 && LIBAVCODEC_VERSION_MINOR == 72
+#define DISTRO_UBUNTU1104
+#endif
+
+#if LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR == 35
+#define DISTRO_UBUNTU1204
+#endif
+
+#if !defined(DISTRO_DEBIAN6) && !defined(DISTRO_UBUNTU1104) && !defined(DISTRO_UBUNTU1204)
+#warning unsupported distro
+#endif
+
+#ifdef DISTRO_UBUNTU1204
+#define CODEC_TYPE_VIDEO AVMEDIA_TYPE_VIDEO
+#define CODEC_TYPE_AUDIO AVMEDIA_TYPE_AUDIO
+#endif
+
 #define MAX_BUFSIZE (1024 * 1024 * 8)
 
 #define CMD_SET_VIDEO_FORMAT        1