Hi all, with the introduction of the new dvdvideo decoder, we are able to access successfully any video and transcode it. Moreover, we can extract subtitles in the native image-based subdvd format.
The command ffmpeg -y -hide_banner -f dvdvideo -title 1 -i dvd.iso -vn -an -map 0:i:0x22 -c:s dvdsub title_01_fre_32.vob allows the extraction of the subtitle with the id 0x20 in dvdsub format. If I add the image2 demuxer, I'm able to extract each RLE frames with the PTS in the filename ffmpeg -y -hide_banner -f dvdvideo -title 1 -i dvd.iso -vn -an -copyts -map 0:i:0x20 -c:s dvdsub -f image2 -frame_pts true title_01_fre_32_%d.rle However, if I ask for a image format like png, with a command like this ffmpeg -y -hide_banner -f dvdvideo -title 1 -i dvd.iso -vn -an -copyts -map 0:i:0x20 -f image2 -frame_pts true title_01_fre_32_%d.png I got [sost#0:0 @ 000002187d8e73c0] Automatic encoder selection failed Default encoder for format image2 (codec none) is probably disabled. Please choose an encoder manually. [sost#0:0 @ 000002187d8e73c0] Error selecting an encoder If I explicitly ask for png with ffmpeg -y -hide_banner -f dvdvideo -title 1 -i dvd.iso -vn -an -copyts -map 0:i:0x20 -c:s png -f image2 -frame_pts true title_01_fre_32_%d.png [sost#0:0 @ 0000021eb03cc640] Invalid encoder type 'png' [sost#0:0 @ 0000021eb03cc640] Error selecting an encoder Indeed, PNG is not supposed to be used for subtitles. But in this case, subtitles are images so they could be transform in PNG. Am I forgetting a filter to make it react as if it was a video ? Thanks for any insight Thomas _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
