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View Full Version : slow audio transcoding in avi2svcd

DE
7th August 2002, 13:35
I tried to convert DivX movie with DVD2SVCD 1.09 and 1.1 (audio stream MP3 128k 48000 joint stereo). But audio transcoding speed is slow :confused: - only 0.3 at Celeron 850 OC 1100 and only 0.1 at Pentium 4 1600 (!). When I use DVD2SVCD 1.06 - speed is normal (>2).
Any help would be much appreciated. Thanks!
Labersack
7th August 2002, 15:37
Post your logfile, please.
DE
8th August 2002, 10:26
Video framerate of my DivX is 23.980. I tried to convert another fragment with 23.976 - no problem.

Begining DVD2SVCD 1.06 logfile (test fragment 36 sec) - Celeron 1100

The original video framerate of 23.980 is not supported. The framerate will be adjusted!
--------------------------------------------------------
- 08.08.2002 16:06:39
- AVI to SVCD Conversion
- AVI2SVCD ver. 1.0.6 build 4
--------------------------------------------------------
Initializing
Initializing finished.

--------------------------------------------------------
- 08.08.2002 16:06:41
- Free on drive D: 1812.59 mb
- AUDIO Extraction
--------------------------------------------------------
Audio extraction finished.

--------------------------------------------------------
- 08.08.2002 16:06:41
- Free on drive D: 1812.04 mb
- AUDIO conversion
--------------------------------------------------------

Converting MP2 to WAV. Filename: D:\Distrib\dv\Extracted_audio_1.mpa
Executing MADPlay (mp2 to wav). Commandline:
"C:\Program Files\DVD2SVCD\MADPlay\madplay.exe" --verbose --output=wave:"D:\Distrib\dv\Encoded_audio_1.mp2.wav" "D:\Distrib\dv\Extracted_audio_1.mpa"
Conversion (mp2 to wav) of D:\Distrib\dv\Extracted_audio_1.mpa finished.


Converting Audio to MP2. Filename: D:\Distrib\dv\Extracted_audio_1.mpa
Executing BeSweet. Commandline:
"C:\Program Files\DVD2SVCD\BeSweet\BeSweet.exe" -core( -input "D:\Distrib\dv\Encoded_audio_1.mp2.wav" -output "D:\Distrib\dv\Encoded_audio_1.mp2" -logfile "D:\Distrib\dv\Encoded_audio_1.log" ) -ota( -g max -r 23976 23980 ) -2lame( -e -b 128 -m s )
Audio conversion of D:\Distrib\dv\Extracted_audio_1.mpa finished.

Audio conversion finished.

--------------------------------------------------------
- 08.08.2002 16:07:32
- Free on drive D: 1804.88 mb
- Video Encoding
--------------------------------------------------------


BeSweet log (transcoding time ~34 sec)

BeSweet v1.2b1 logfile.
--------------------------
Logging start : 08/08/02 , 16:16:16.

C:\Program Files\DVD2SVCD\BeSweet\BeSweet.exe -core( -input D:\Distrib\dv\Encoded_audio_1.mp2.wav -output D:\Distrib\dv\Encoded_audio_1.mp2 -logfile D:\Distrib\dv\Encoded_audio_1.log ) -ota( -g max -r 23976 23980 ) -2lame( -e -b 128 -m s )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : D:\Distrib\dv\Encoded_audio_1.mp2.wav
[00:00:00:000] | Output: D:\Distrib\dv\Encoded_audio_1.mp2
[00:00:00:000] | Floating-Point Process: No
[00:00:00:000] | Overall Track Gain: 15.6dB
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +-------- FRC --------
[00:00:00:000] | Source Frame-Rate: 23980
[00:00:00:000] | Dest. Frame-Rate: 23976
[00:00:00:000] +-------- 2LAME ------
[00:00:00:000] | Bitrate method : CBR
[00:00:00:000] | MP2 bitrate : 128
[00:00:00:000] | Channels Mode : Stereo
[00:00:00:000] | Error Protection: Yes
[00:00:00:000] +---------------------
[00:00:36:049] Conversion Completed !
Logging ends : 08/08/02 , 16:16:57.


Begining DVD2SVCD 1.1 logfile (the same fragment) - Pentium 4 1600

The original video framerate of 23.980 is not supported. The framerate will be adjusted!
--------------------------------------------------------
- 08.08.2002 16:03:17
- AVI to SVCD Conversion
- AVI2SVCD ver. 1.1.0 build 1 Pre 22
--------------------------------------------------------
Initializing
Initializing finished.

--------------------------------------------------------
- 08.08.2002 16:03:18
- Free on drive D: 17837.64 mb
- AUDIO Extraction
--------------------------------------------------------
Audio extraction finished.

--------------------------------------------------------
- 08.08.2002 16:03:19
- Free on drive D: 17837.08 mb
- AUDIO conversion
--------------------------------------------------------

Converting MP2 to WAV. Filename: D:\Distr\Svcd\Extracted_audio_1.mpa
Executing MADPlay (mp2 to wav). Commandline:
"C:\Program Files\DVD2SVCD\MADPlay\madplay.exe" --quiet --output=wave:"D:\Distr\Svcd\Encoded_audio_1.mp2.wav" "D:\Distr\Svcd\Extracted_audio_1.mpa"
Conversion (mp2 to wav) of D:\Distr\Svcd\Extracted_audio_1.mpa finished.


Converting Audio to MP2. Filename: D:\Distr\Svcd\Extracted_audio_1.mpa
Executing BeSweet. Commandline:
"C:\Program Files\DVD2SVCD\BeSweet\BeSweet.exe" -core( -input "D:\Distr\Svcd\Encoded_audio_1.mp2.wav" -output "D:\Distr\Svcd\Encoded_audio_1.mp2" -logfile "D:\Distr\Svcd\Encoded_audio_1.log" ) -ota( -g max -r 23976 23980 ) -2lame( -e -b 128 -m s )
Audio conversion of D:\Distr\Svcd\Extracted_audio_1.mpa finished.

Audio conversion finished.

--------------------------------------------------------
- 08.08.2002 16:11:23
- Free on drive D: 17829.88 mb
- Video Encoding using Cinema Craft


BeSweet log (transcoding time 7 min!):

BeSweet v1.4RC6 by DSPguru.
--------------------------
Using Shibatch.dll v0.14 by Naoki Shibata & DSPguru (shibatch.sourceforge.net).
Using MP2enc.dll v1.129 (23/5/2002), Engine 1.129 <http://www.cdex.n3.net>.

Logging start : 08/08/02 , 16:03:26.

C:\Program Files\DVD2SVCD\BeSweet\BeSweet.exe -core( -input D:\Distr\Svcd\Encoded_audio_1.mp2.wav -output D:\Distr\Svcd\Encoded_audio_1.mp2 -logfile D:\Distr\Svcd\Encoded_audio_1.log ) -ota( -g max -r 23976 23980 ) -2lame( -e -b 128 -m s )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : D:\Distr\Svcd\Encoded_audio_1.mp2.wav
[00:00:00:000] | Output: D:\Distr\Svcd\Encoded_audio_1.mp2
[00:00:00:000] | Floating-Point Process: Yes
[00:00:00:000] | Overall Track Gain: 14.7dB
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +-------- FRC --------
[00:00:00:000] | Source Frame-Rate: 23980
[00:00:00:000] | Dest. Frame-Rate: 23976
[00:00:00:000] +------- MP2ENC ------
[00:00:00:000] | Bitrate method : CBR
[00:00:00:000] | MP2 bitrate : 128
[00:00:00:000] | Channels Mode : Stereo
[00:00:00:000] | Error Protection: Yes
[00:00:00:000] +---------------------
[00:00:36:049] Conversion Completed !
[00:00:36:049] Actual Avg. Bitrate : 127kbps
[00:07:53:000] <-- Transcoding Duration
Logging ends : 08/08/02 , 16:11:19.
DE
8th August 2002, 10:36
I forgot - no audio!