Postby tfthompso » 29 Dec 2009 03:16
I'm experiencing the same problem, plus a few others when trying to convert to Ogg. Here are the details from my tests:
From FLV to Ogg (using default settings): Creates a file where, as kitkat described, video does not playback in the VLC Media Player, but audio does.
From M4V to Ogg (using default settings): Creates a video that plays back, but the video and audio are out of synch. In a 75 second video, the audio was done ten seconds before the video was. Also (a possible clue), the time is misrepresented on the controller bar. The time of the original M4V video was 1:15, which is accurate. However, when playing back the Ogg file, the total time is shown as 0:51. When the audio is finished, the time is 01:15/00:51. As the additional ten seconds of video play after the audio has stopped, no more time ticks by on the clock.
From MOV to Ogg (using default settings): Creates a video that plays back, but the dimensions are distorted. The original video was 640x480. When I play the ogg file back in the VLC Media Player, it is much taller than it should be - looks like 640 x 640. I get the same effect if I try playing in back in Firefox 3.5 using the HTML5 <video> element. However, if in the VLC Media Player, I go to Media Information (Ctrl + I) and select the "Codec Details" tab, it claims that both the resolution and display resolution are 640 x 480, but that's clearly not what I'm seeing. I also tried specifying the correct width and height in the Ogg settings dialog just prior to executing the conversion, but that had no effect.
From WMV to Ogg (using default settings): This had inconsistent results. Sometimes the VLC Media Player crashed during conversion. When I did get output, it had the same problem with synchronization and timing as M4V did, plus the file seemed to be corrupt - the player changed from video to audio then back to video again several times throughout the video. I tried several times to convert WMV, and when it didn't crash I got the same bad results.
Some additional details:
- I'm using VLC Media Player 1.0.3
- Each of the above input files plays fine in the player.
- The specific output I'm selecting for each test is Video: Theora+Vorbis (Ogg)
Hopefully someone can help get at least one of these to work. Ultimately my goal is simply to convert these videos to Ogg for use in HTML5.