请问AVCHD的码率是否是自动调整的? 我设置了44M,为啥拍出来还是只有6-7M?

另外把720 60i改为720 29p有什么好处?除了码率降低外~~~~

还有YCC 420 和 422差多少? 我怎么看不太出啊~~~

[银翼 编辑于 2010-07-09 15:34]

请问你是什么卡 这个设置还能再高吗？求你的具体设置？谢谢！

等待作者解决卡速的bug，

改进UI没太多意义呀

但一定要用快存咭
否則會很慢的

向楼主和其他网友请教一下

我的是1.2固件（GH1）

忘记照片了

贴个国外网友的设定供参考，貌似AVCHD的设定对GF1是无效的。
http://www_dvxuser_com/V6/showthread.php?t=213482&page=2

GF1 MJPEG working:
Quality: [ 384, 330, 300, 276 ]
Table: [ 24, 24, 24, 24 ]
422: Yes
Lens: Pancake 20mm f1.7
Media: Transcend 16GB Class 6
Peak bit rate: 75.7 Mbps
Camera Playback: not working
Recorded several clips up to a couple of minutes, with no hick-ups or freeze from the camera.

GF1 AVCHD failure:
Settings: 2000000,2200000,2400000
Mediainfo report:
General:MaximumOverallBitRate: increased (24Mbps).
Video:BitRate: 16Mbps (depending on scene)
Video:MaxmimumBitRate: stays the same 16.6Mbps

I have tried a bunch of settings for increasing AVCHD bit rate, but with no sucess. It seems the patch only affects the maximum overall bit rate, not the sub limit used for the video stream. Maybe it is controlled from somewhere else, or capped by hardware?

---
Shot in S-mode, locked exposure with AF/AE-lock button.
(Settings: AF/AE Lock -> AE, AF/AE Lock Hold -> On)

另一个网友解释了E1到E4的含义，并指出20mm饼干头会导致低bit rate（神奇！)。
Quick update of what I have seen so far:
The 20mm pancake causes the 1080p bit rate to spike for some reason. I can record high bit rate 1080p with my MF lenses and the 14-45mm but not with the 20mm. If you do the foliage in bright sunlight in focus test at a high bit rate it will fail after a few seconds.

The 1080p option is clearly sharper than the 720p option even if both are at high bit rates. I will upload the files tonight to demonstrate this.

This is my experience I don’t know if the following is true or not.

E1 and E2 settings are for higher motion detailed scenes. E3 and E4 settings are for lower motion less detailed scenes. With less detail you need lower bandwidth. That is why I typically use 300 for E1 Quality, and then go down to 275 for E2 Quality, 250 for E3, and 225 for E4. The higher the E quality number the higher the bit rate. I have recorded as high as 800 and it was topping out around 90 mb/sec and wouldn’t record for more than a few seconds with any lens and a Class 10 SD card.

I use 175, 160, 145, and 130 for E1 Table through E4 Table respectively. In my experiences the same rules for E quality settings apply to E table settings.

I don’t think the 4:2:2 option is worth messing with right now. Pretty much anything you re-encode it to will eliminate the benefits of the 4:2:2 color.

AVC-HD video adjustments do not work right now specifically for the GF1. They did with the PTool version I have from last Friday but the version released yesterday has broken the video settings. The audio settings work though. If anyone can upload a file from the GF1 that shows the AVC-HD settings produce higher than 24 mb/sec with the newest Ptool version I would appreciate it. I will also want to know what you did to achieve that though.
__________________
Panasonic DMC-GF1 movies

http://www.※※※※※※※.com/user/mpgxsvcd#play/uploads

http://vimeo_com/user442745

对于一些主要用来拍摄脚本的用户，5分钟已经绰绰有余了。

我试过了，目前的3.4版中只对Overall bitrate起作用，平均bitrate还是只有10M以下～～～

你的avchd能达到多少？

还有MJPEG的1920下E1的Q和E设定多少GF1才能稳定摄像？我还在测试中。。。

我看他们在争论是否可以提升AVCHD的最低码率，但在3.4中没看见相关设定，只有在patchs for tester中有avchd 压缩值的设定，不知道您是否尝试过？

GOP好像还有点作用，而720p60降30的选项貌似只是降低码率和缩小文件吧？

AVCHD视频压缩采用了P帧和I帧，对于变化不大的画面，要提升最低码率就要增加P帧的数据量，这么弄下来和Mjpeg就差不多了，体现不出AVCHD的优势啦。

我前一阵试过一个很稳定的设定，用很变态的复杂细节画面测试，拍摄都很稳定，但是画面质量似乎还不够满意。

E1--E4 Q ：512 448 384 320
E1--E4 T： 512 512 512 512

您可以试试看。

老外的做法是准备好几张SDHC卡并存入不同的固件，分别对应复杂场景和一般场景～～～

要么就是用1440。

今天首次尝试拍摄MJPG
MJPEG 1280m 420->422勾选
Quality settings (E1 to E4) - 384, 330, 300, 276
Table settings (E1 to E4) - 24, 24, 24, 24
创见6级卡
拍20多秒出错
请问是卡不行，还是数据设置问题。
谢谢~~~~

10级卡都跑不动
那俺就不试了
专门研究AVC吧
谢谢小资~~~