lavf/matroska: Allow AV1 in WebM

Nothing prevents it to work except this check. AV1 is already supported
by Matroska muxer and aomenc produces WebM/AV1 files as well.
Signed-off-by: Kagami Hiiragi <kagami@genshiken.org>
Signed-off-by: James Almer <jamrial@gmail.com>

libavformat/matroskaenc.c

@@ -1296,11 +1296,12 @@ static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
 
     if (mkv->mode == MODE_WEBM && !(par->codec_id == AV_CODEC_ID_VP8 ||
                                     par->codec_id == AV_CODEC_ID_VP9 ||
+                                    par->codec_id == AV_CODEC_ID_AV1 ||
                                     par->codec_id == AV_CODEC_ID_OPUS ||
                                     par->codec_id == AV_CODEC_ID_VORBIS ||
                                     par->codec_id == AV_CODEC_ID_WEBVTT)) {
         av_log(s, AV_LOG_ERROR,
-               "Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM.\n");
+               "Only VP8 or VP9 or AV1 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM.\n");
         return AVERROR(EINVAL);
     }
 

libavformat/version.h

@@ -33,7 +33,7 @@
 // Also please add any ticket numbers that you believe might be affected here
 #define LIBAVFORMAT_VERSION_MAJOR  58
 #define LIBAVFORMAT_VERSION_MINOR  18
-#define LIBAVFORMAT_VERSION_MICRO 101
+#define LIBAVFORMAT_VERSION_MICRO 102
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                                LIBAVFORMAT_VERSION_MINOR, \