don't copy dvb_teletext by default

fixes #1343

src/App.jsx

@@ -58,7 +58,7 @@ import {
   getDuration, getTimecodeFromStreams, createChaptersFromSegments, extractSubtitleTrack,
   getFfmpegPath, RefuseOverwriteError,
 } from './ffmpeg';
-import { shouldCopyStreamByDefault, getAudioStreams, getRealVideoStreams, defaultProcessedCodecTypes, isAudioDefinitelyNotSupported, doesPlayerSupportFile } from './util/streams';
+import { shouldCopyStreamByDefault, getAudioStreams, getRealVideoStreams, isAudioDefinitelyNotSupported, doesPlayerSupportFile } from './util/streams';
 import { exportEdlFile, readEdlFile, saveLlcProject, loadLlcProject, askForEdlImport } from './edlStore';
 import { formatYouTube, getFrameCountRaw } from './edlFormats';
 import {
@@ -785,7 +785,7 @@ const App = memo(() => {
 
   // Streams that are not copy enabled by default
   const extraStreams = useMemo(() => mainStreams
-    .filter((stream) => !defaultProcessedCodecTypes.includes(stream.codec_type)), [mainStreams]);
+    .filter((stream) => !shouldCopyStreamByDefault(stream)), [mainStreams]);
 
   // Extra streams that the user has not selected for copy
   const nonCopiedExtraStreams = useMemo(() => extraStreams

src/util/streams.js

@@ -1,11 +1,15 @@
 // https://www.ffmpeg.org/doxygen/3.2/libavutil_2utils_8c_source.html#l00079
-export const defaultProcessedCodecTypes = [
+const defaultProcessedCodecTypes = [
   'video',
   'audio',
   'subtitle',
   'attachment',
 ];
 
+const unprocessableCodecs = [
+  'dvb_teletext', // ffmpeg doesn't seem to support this https://github.com/mifi/lossless-cut/issues/1343
+];
+
 // taken from `ffmpeg -codecs`
 export const pcmAudioCodecs = [
   'adpcm_4xm',
@@ -189,6 +193,7 @@ export function getMapStreamsArgs({ startIndex = 0, outFormat, allFilesMeta, cop
 
 export function shouldCopyStreamByDefault(stream) {
   if (!defaultProcessedCodecTypes.includes(stream.codec_type)) return false;
+  if (unprocessableCodecs.includes(stream.codec_name)) return false;
   return true;
 }