Problem Exporting VOB to MP4 or MOV with no transcoding
Posted: 03 Nov 2006 10:35
I am trying to transcode VOB files to MP4 or MOV format without recompressing (Just using the different transport container so I don't lose any quality during the recompression process).
I am using VLC 0.8.5 (Intel build) and MAC OSX 10.4.8.
I have tried several exports from various VOB files that play OK in VLC. When I use the 'Streaming/Exporting' wizard, I first make sure that neither the video nor audio codec recode check boxes are selected in the "Transcode" options (to avoid recompressing). I then select "MP4 / MPEG 4" as my "Encapsulation format" options (have tried MOV too), then follow the prompts to output the file.
At that point I get an error popup that is titled "Error" with the words "An error has occurred which probably prevented the proper execution of the program:". A white text box below that text reads:
mux_mp4: unsupported codec a52 in mp4
main: cannot add this stream
mux_mp4: unsupported codec a52 in mp4
main: cannot add this stream
I have tried many combinations and permutations. I can get it to export if I select recoding (in the transcode options window) for both audio and video to a different format, but that obviously defeats my quality goals.
Is this a bug? If not, what am I doing wrong? Is there a workaround to do what I want to do?
Gary.
I am using VLC 0.8.5 (Intel build) and MAC OSX 10.4.8.
I have tried several exports from various VOB files that play OK in VLC. When I use the 'Streaming/Exporting' wizard, I first make sure that neither the video nor audio codec recode check boxes are selected in the "Transcode" options (to avoid recompressing). I then select "MP4 / MPEG 4" as my "Encapsulation format" options (have tried MOV too), then follow the prompts to output the file.
At that point I get an error popup that is titled "Error" with the words "An error has occurred which probably prevented the proper execution of the program:". A white text box below that text reads:
mux_mp4: unsupported codec a52 in mp4
main: cannot add this stream
mux_mp4: unsupported codec a52 in mp4
main: cannot add this stream
I have tried many combinations and permutations. I can get it to export if I select recoding (in the transcode options window) for both audio and video to a different format, but that obviously defeats my quality goals.
Is this a bug? If not, what am I doing wrong? Is there a workaround to do what I want to do?
Gary.