Youtube Upload, increase quality/control (HQ hack obsolete)

[frifox]

I saved the FLV file to analyze and just got around to analyzing it. I didn't see any AVC codes inside it. Just a ton of H263 video packets and switched resolution types with bad picture codes. I think that experiment failed drastically

they were supposed to be x264, but when passing binded FLV with through older ffmpeg with both H263/x264 frames present, the resulting video comes out corrupted BUT slips past youtube's radar and uploads just fine


commands i used to make bugged video:
[COMMANDS REMOVED, ITS BETTER THIS WAY]

[frifox]

okay, i played that H264 video with Mplayer and here's its output.
this might give us some hints as to how it works, and hopefully improve the method...


Output (i bolded the interesting parts):

MPlayer 1.0rc2-4.2.1 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz (Family: 6, Model: 15, Stepping: 6)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Playing video.flv.
libavformat file format detected.
[lavf] Video stream found, -vid 0
[lavf] Audio stream found, -aid 1
VIDEO: [FLV1] 1280x720 0bpp 59.417 fps 0.0 kbps ( 0.0 kbyte/s)

Starting playback...
VDec: vo config request - 1280 x 720 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [directx] 1280x720 => 1280x720 Planar YV12
VDec: vo config request - 4 x 3 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [directx] 4x3 => 4x3 Planar YV12
[flv @ 00D4FB70]concealing 1 DC, 1 AC, 1 MV errors
[flv @ 00E1E768]Unsupported video codec (7)
[flv @ 00E1E768]Unsupported video codec (7)
...
[flv @ 00E1E768]Unsupported video codec (7) <------------- repeats ~6000 times
...
[flv @ 00E1E768]Unsupported video codec (7)
[flv @ 00E1E768]Unsupported video codec (7)
VDec: vo config request - 16 x 12 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [directx] 16x12 => 16x12 Planar YV12

Exiting... (End of file)

and also this snippet after every "Unsupported video codec" error:

[flv @ 00D4FB70]Bad picture start code
[flv @ 00D4FB70]header damaged
Error while decoding frame!

PS: output was 1.2MB text file which you can get here:
http://rapidshare.com/files/128035702/out.txt

[zappa_engine]

Glad mplayer confirmed what I saw too 8)

Yet I loaded up VMWare, and installed firefox, and the latest flash player 9, 0,0, 124 and visited those sites, and the videos actually play. It's interesting because FreeOurTube method shows codec ID of 7 for it's video, and frifox's method shows all those h263 frames with ever changing resolutions. I didn't go into data packet analysis for avc yet. I am still working on other things It would be interesting to see how that works out.

[Spartacomp]

Here's an example with a higher quality source video (and proper thumbnail):

http://www.youtube.com/watch?v=74Mrz-eZIRY

[rajman]

Here's an example with a higher quality source video:

http://www.youtube.com/watch?v=74Mrz-eZIRY

What the...... Now thats impressive! How the hell did you do that?

Whats weird when I click on your Youtube page the video reads 10:59 but when I click on it, it reads 2:56?

[zappa_engine]

Reading next FLV tag...
Tag type 8 [AUDIO]
Tag Size of Data 105
Timestamp 658791
Timestamp extended 0
>>[AUDIO DETAILS START]
MP3 (44-kHz, 16 Bit, Stereo)
MPEG Audio Packet Info
FrameSync 2047
MPEG Audio Version 1, Layer 3
Bit Rate 32 kbps
Sampling Rate (bit-result) 0
Channel Mode Joint Stereo
<<[AUDIO DETAILS END]
Position in stream: 24303117
Reading previous tag size...
Tag size 116

Reading next FLV tag...
Tag type 9 [VIDEO]
Tag Size of Data 3442
Timestamp 175767
Timestamp extended 0
>>[VIDEO DETAILS START]
FrameType: 2, CodecID: 2
Sorenson H.263 (H263VIDEOPACKET)
PictureStartCode 1
Version 1
TemporalReference 89
PictureSize 1
[16 bit definition] 640x480
<<[VIDEO DETAILS END]
Position in stream: 24306574
Reading previous tag size...
Tag size 3453

Reading next FLV tag...
Tag type 9 [VIDEO]
Tag Size of Data 3284
Timestamp 175813
Timestamp extended 0
>>[VIDEO DETAILS START]
FrameType: 2, CodecID: 2
Sorenson H.263 (H263VIDEOPACKET)
PictureStartCode 1
Version 1
TemporalReference 90
PictureSize 1
[16 bit definition] 640x480
<<[VIDEO DETAILS END]
Position in stream: 24309873
Reading previous tag size...
Tag size 3295

Reading next FLV tag...
Tag type 9 [VIDEO]
Tag Size of Data 3988
Timestamp 175858
Timestamp extended 0
>>[VIDEO DETAILS START]
FrameType: 2, CodecID: 2
Sorenson H.263 (H263VIDEOPACKET)
PictureStartCode 1
Version 1
TemporalReference 91
PictureSize 1
[16 bit definition] 640x480
<<[VIDEO DETAILS END]
Position in stream: 24313876
Reading previous tag size...
Tag size 3999

Reading next FLV tag...
Unable to read beyond the end of the stream.
Can not read file.
There were 10499 total FLV tags found.

I should give the executive summary. Of the last four packets, the last 3 are video, and the 4th from last one is audio. Notice the audio's timestamp compared to the video's timestamp.

I can guess that Audio flv tags play an important role in setting up YouTube's overall bitrate. There will probably be a delay in the next release of my tool because there are really a lot of new developments to study. Between VP6 and H264 and customized thumbnails, now being able to edit the player's time display, there is a lot of testing to do.

[Spartacomp]

Here's an example with a higher quality source video:

http://www.youtube.com/watch?v=74Mrz-eZIRY

What the...... Now thats impressive! How the hell did you do that?

Whats weird when I click on your Youtube page the video reads 10:59 but when I click on it, it reads 2:56?

Hi Rajman,

I shared the method with Frifox. I am sure he will share it with you.

[zappa_engine]

I shared the method with Frifox. I am sure he will share it with you.

You never share methods with me. I have to work to analyze files

[Spartacomp]

I shared the method with Frifox. I am sure he will share it with you.

You never share methods with me. I have to work to analyze files

Man, I will share it with you right now!!

[zappa_engine]

That would be nice Less testing for me is more free time

[FreeOurTube]

There is a solution for proper (non-noisy) thumbnails in H.264 videos, but it's ugly at the moment. I try to work on that today. Of course I can too share my methods with you zappa, if you're interested. But like it's been said, there isn't really that much new to it.

BTW, frifox, I would get rid of that "Crash trailer" and everything related to it on this site ASAP!

[zappa_engine]

Certainly. I'm not really good at finding new tricks, but I have good "eyes". It saves me a lot of time to not have to analyze everything I see

And yeah, I agree. I don't intend to annoy users as I'd rather give them a good experience!

[cjwcorp]

Is 16x12 method banned? (Combining 16x12 flv with regular flv)

Spartacomp, can you share the new method with me?

[Ronkis]

anyone know anyway to get VP6 + version 2 layer 3, not version 1 layer 3, mp3 working?
or H.263 + version 2 layer 3 mp3?

using on2 flix pro 8.5 and it encode VP6 much faster and the quality is much better than H.263..

but it always output version 2 layer 3 mp3..

[Spartacomp]

Is 16x12 method banned? (Combining 16x12 flv with regular flv)

Spartacomp, can you share the new method with me?

Your YT channel says enough. The method is sent to you.

[FreeOurTube]

It seems I'm done. (minutes ago)

It seems I'm not. I have to wait and see. It could be just a transition from private to public broadcast status.

YouTube note:
It can take up to 6 hours for your image to be updated.

Finally it seems like I'm done.

Again, seems like I'm not. Have to give it a day, I guess.

Now I tried to see my YouTube channel page via proxy and it did display the thumb that keeps appearing and disappearing from my location.

[themaster1]

Yes, I'll be working to analyze that and integrate it asap now.
The question I'm wondering is how do you encode H.264 in a FLV container?

Since FFmpeg revision 13438:

ffmpeg -i video.mp4 -vcodec copy -acodec copy video.flv

where can we download this "revision"?

[frifox]

http://sourceforge.net/project/showfiles.php?group_id=205275

[acid_burn]

I upload only originally made videos.

Could someone share a method for getting better quality? Thanks a lot^^
You can PM me if necessary.

[MePerson]

Can anyone tell me what the current method[s] are, which one is the best quality and which one is easiest, and how to use them?

[frifox]

there are quite a few, but they all come down to one... w16 method

[virtualgamesco]

Hey, Spartacomp. Sorry to ask, but could you send me the new method? I'd greatly appreciate it.
EDIT: Never mind. I see you have a ton of n00bs to deal with, so forget it. I'll stick with w16.

[frifox]

nvm

[rajman]

Frifox what did you try here? H.264 or VP6? Ive had no luck so far with my VP6 videos and still gotta try H264...so yehh I wanna try whatever youre doing to :P
Also can I see that video thats been HQ over 24 hours, thanks

[frifox]

no AVC this time... just plain H263

i'll make the video public, and post link here later, after the 48hr mark passes...

[rajman]

no AVC this time... just plain H263

i'll make the video public, and post link here later, after the 48hr mark passes...

Hmmm so whats different about this to the HQ method that we already use?

[frifox]

whats different? well, first i'll wait for HQ video to survive conversion to LQ and then i'll look deeper to figure out the cause...

btw, you can always try to figure it out as well

[Renzo88]

Nvm ,then again, I am curious to know how "FreeOurTube" is able to fuse such HQ videos. Was it the source of the video?, Is the the VP6 that much better in encoding than others? or Is it simply the the method he's using ? Wish FreeOurtube would share his method. My guess is his intitial thumb frame bypsses the encoding then his main slips through regardless of codecs and size as long as it's in youtube's given limit.

[rajman]

whats different? well, first i'll wait for HQ video to survive conversion to LQ and then i'll look deeper to figure out the cause...

btw, you can always try to figure it out as well

Im working on it....I uploaded a FLV video encoded using the FLV4/VP6 codec and it stayed HQ just over an hour before going LQ....not a long time but the first video using that codec Ive managed to upload without getting 'Unable to convert video' so I made a little progress I guess But gonna keep trying on this as videos using this codec look really good compared to H.263

[frifox]

spritemoney, plz keep that kind of messages to PM's. keep this thread clean...