diff --git a/panda/src/ffmpeg/ffmpegAudioCursor.cxx b/panda/src/ffmpeg/ffmpegAudioCursor.cxx
index 14283fe19b..132f2ff9f9 100644
--- a/panda/src/ffmpeg/ffmpegAudioCursor.cxx
+++ b/panda/src/ffmpeg/ffmpegAudioCursor.cxx
@@ -203,7 +203,11 @@ cleanup() {
 
   if (_packet) {
     if (_packet->data) {
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+      av_packet_unref(_packet);
+#else
       av_free_packet(_packet);
+#endif
     }
     delete _packet;
     _packet = NULL;
@@ -242,7 +246,11 @@ cleanup() {
 void FfmpegAudioCursor::
 fetch_packet() {
   if (_packet->data) {
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+    av_packet_unref(_packet);
+#else
     av_free_packet(_packet);
+#endif
   }
   while (av_read_frame(_format_ctx, _packet) >= 0) {
     if (_packet->stream_index == _audio_index) {
@@ -250,7 +258,11 @@ fetch_packet() {
       _packet_data = _packet->data;
       return;
     }
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+    av_packet_unref(_packet);
+#else
     av_free_packet(_packet);
+#endif
   }
   _packet->data = 0;
   _packet_size = 0;
@@ -300,7 +312,11 @@ reload_buffer() {
       pkt.size = _packet_size;
       int len = avcodec_decode_audio4(_audio_ctx, _frame, &got_frame, &pkt);
       movies_debug("avcodec_decode_audio4 returned " << len);
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+      av_packet_unref(&pkt);
+#else
       av_free_packet(&pkt);
+#endif
 
       bufsize = 0;
       if (got_frame) {
diff --git a/panda/src/ffmpeg/ffmpegVideoCursor.cxx b/panda/src/ffmpeg/ffmpegVideoCursor.cxx
index ec79cd40b2..0be8024a0a 100644
--- a/panda/src/ffmpeg/ffmpegVideoCursor.cxx
+++ b/panda/src/ffmpeg/ffmpegVideoCursor.cxx
@@ -82,9 +82,13 @@ init_from(FfmpegVideo *source) {
 
 #ifdef HAVE_SWSCALE
   nassertv(_convert_ctx == NULL);
-  _convert_ctx = sws_getContext(_size_x, _size_y,
-                                _video_ctx->pix_fmt, _size_x, _size_y,
-                                PIX_FMT_BGR24, SWS_BILINEAR | SWS_PRINT_INFO, NULL, NULL, NULL);
+  _convert_ctx = sws_getContext(_size_x, _size_y, _video_ctx->pix_fmt,
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(51, 74, 100)
+                                _size_x, _size_y, AV_PIX_FMT_BGR24,
+#else
+                                _size_x, _size_y, PIX_FMT_BGR24,
+#endif
+                                SWS_BILINEAR | SWS_PRINT_INFO, NULL, NULL, NULL);
 #endif  // HAVE_SWSCALE
 
 #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(54, 59, 100)
@@ -568,7 +572,11 @@ cleanup() {
 
   if (_packet) {
     if (_packet->data) {
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+      av_packet_unref(_packet);
+#else
       av_free_packet(_packet);
+#endif
     }
     delete _packet;
     _packet = NULL;
@@ -737,14 +745,22 @@ fetch_packet(int default_frame) {
 bool FfmpegVideoCursor::
 do_fetch_packet(int default_frame) {
   if (_packet->data) {
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+    av_packet_unref(_packet);
+#else
     av_free_packet(_packet);
+#endif
   }
   while (av_read_frame(_format_ctx, _packet) >= 0) {
     if (_packet->stream_index == _video_index) {
       _packet_frame = _packet->dts;
       return false;
     }
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 12, 100)
+    av_packet_unref(_packet);
+#else
     av_free_packet(_packet);
+#endif
   }
   _packet->data = 0;