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Issues with FFMPEG and AC3

Brilliant plugin! I have been looking for something like this for a long time. I use TVE3 in a single-seat environment and after some trial and error, I have got the transcoder plugin working quite well with mencoder. I am transcoding recorded TV that is saved in .ts format. With Xvid @720x576, video bitrate of 1,534kbps and MP3 @192kbps my transcoded files are about 25-30% the size of the input file with very decent quality.

However, whenever I try to change the transcoder settings to AC3, the output file is completely out of whack. Video frames are flashing by in what looks like some kind of fast forward mode and only part of the audio can be heard. Not a big issue as it works with MP3, but I was unsure wether I could get 5.1 audio without AC3.

The other issue I have is that transcoding doesn't start if I use FFMPEG instead of mencoder. Not a big issue either, but some people on this forum seem to believe that FFMPEG gives better quality.

To conclude, I would like to know if I need AC3 in order to have 5.1 audio in my transcoded files. In addition, I am curious about which bitrate, framerate, resolution, etc. others are using in order to achieve good quality transcodes of recorded TV.

Hat off for Fabrice, for creating such a great plugin!

Cheers,
Tomas

<blockquote data-quote="tomoqv" data-source="post: 229623" data-attributes="member: 21836">Issues with FFMPEG and AC3Brilliant plugin! I have been looking for something like this for a long time. I use TVE3 in a single-seat environment and after some trial and error, I have got the transcoder plugin working quite well with mencoder. I am transcoding recorded TV that is saved in .ts format. With Xvid @720x576, video bitrate of 1,534kbps and MP3 @192kbps my transcoded files are about 25-30% the size of the input file with very decent quality.However, whenever I try to change the transcoder settings to AC3, the output file is completely out of whack. Video frames are flashing by in what looks like some kind of fast forward mode and only part of the audio can be heard. Not a big issue as it works with MP3, but I was unsure wether I could get 5.1 audio without AC3.The other issue I have is that transcoding doesn't start if I use FFMPEG instead of mencoder. Not a big issue either, but some people on this forum seem to believe that FFMPEG gives better quality.To conclude, I would like to know if I need AC3 in order to have 5.1 audio in my transcoded files. In addition, I am curious about which bitrate, framerate, resolution, etc. others are using in order to achieve good quality transcodes of recorded TV.Hat off for Fabrice, for creating such a great plugin!Cheers,Tomas</blockquote>

[QUOTE="tomoqv, post: 229623, member: 21836"] [b]Issues with FFMPEG and AC3[/b] Brilliant plugin! I have been looking for something like this for a long time. I use TVE3 in a single-seat environment and after some trial and error, I have got the transcoder plugin working quite well with mencoder. I am transcoding recorded TV that is saved in .ts format. With Xvid @720x576, video bitrate of 1,534kbps and MP3 @192kbps my transcoded files are about 25-30% the size of the input file with very decent quality. However, whenever I try to change the transcoder settings to AC3, the output file is completely out of whack. Video frames are flashing by in what looks like some kind of fast forward mode and only part of the audio can be heard. Not a big issue as it works with MP3, but I was unsure wether I could get 5.1 audio without AC3. The other issue I have is that transcoding doesn't start if I use FFMPEG instead of mencoder. Not a big issue either, but some people on this forum seem to believe that FFMPEG gives better quality. To conclude, I would like to know if I need AC3 in order to have 5.1 audio in my transcoded files. In addition, I am curious about which bitrate, framerate, resolution, etc. others are using in order to achieve good quality transcodes of recorded TV. Hat off for Fabrice, for creating such a great plugin! Cheers, Tomas [/QUOTE]