sd_lavc_conv: fix build with older ffmpeg/libav

Sigh...

1 files changed, 17 insertions, 0 deletions

diff --git a/sub/sd_lavc_conv.c b/sub/sd_lavc_conv.c
index ccfecbb00c..6f72671650 100644
--- a/sub/sd_lavc_conv.c
+++ b/sub/sd_lavc_conv.c
@@ -30,6 +30,12 @@
 #include "mpvcore/bstr.h"
 #include "sd.h"
 
+#if LIBAVCODEC_VERSION_MICRO >= 100
+#define HAVE_AV_WEBVTT (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(55, 13, 100))
+#else
+#define HAVE_AV_WEBVTT 0
+#endif
+
 struct sd_lavc_priv {
     AVCodecContext *avctx;
 };
@@ -111,6 +117,8 @@ static int init(struct sd *sd)
     return -1;
 }
 
+#if HAVE_AV_WEBVTT
+
 // FFmpeg WebVTT packets are pre-parsed in some way. The FFmpeg Matroska
 // demuxer does this on its own. In order to free our demuxer_mkv.c from
 // codec-specific crud, we do this here.
@@ -213,6 +221,15 @@ static int parse_webvtt(AVPacket *in, AVPacket *pkt)
     return 0;
 }
 
+#else
+
+static int parse_webvtt(AVPacket *in, AVPacket *pkt)
+{
+    return -1;
+}
+
+#endif
+
 static void decode(struct sd *sd, struct demux_packet *packet)
 {
     struct sd_lavc_priv *priv = sd->priv;