It is also very simple to use. Connect DV and 1394 cards with the data cable that comes with 1394 card, and then install video processing software in the computer, such as Ulead Video Studio or ADOBE Premiere, so that you can use the software to shoot video through 1394 card.
Brand, personal use, it is recommended to use the 70-/kloc-0 1394 card between 60 yuan, such as Pinnaco and Tianmin. ...
Attachment: About the use skills of IEEE 1394 interface and DV capture.
What is IEEE 1394 and what is firewire?
The full name of 1394 card is IEEE 1394 interface card. Sony and other video equipment manufacturers call it iLink, while Apple (the favorite company of Lao Ku), which created this interface technology, calls it Firewire. IEEE 1394 is an external serial bus standard with a high speed of 400 Mbit/s. When it first came out, it was considered as a substitute for scsi and other external buses, but its development has been limited in the following years, and it was only used to connect digital cameras. So I saw someone say that 1394 bus will be replaced by USB2.0. However, in the past year, with the decrease of cost, 1394 card is rapidly spreading. Other related equipment, such as digital camera, hard disk, webcam, etc. , has gradually emerged.
So strictly speaking, 1394 card is just a universal interface like USB, not a video capture card. For example, you can connect a high-speed external hard disk to the 1394 card. However, because most of the 1394 cards are used to connect cameras, we usually regard it as an acquisition card.
What are the advantages of 1394 interface over the capture/recording of analog video interface?
1394 capture/recording is original, that is, it can be captured/recorded without any loss. A very accurate analogy can be made: analog video, like tape copying, is analog transcription, and the more copies, the worse the quality, while 1394 transcription is the same as floppy disk copying files, and there is no difference between source files and copies.
What are the types of 1394 cards? Why is there such a big price difference? How to choose?
It can be simply divided into two categories: 1) DV card with hardware DV real-time coding function, and 2) 1394 card with software compression coding (the most common soft card is OHCI 1394 card).
DV cards with hardware coding function are generally above 5000, such as RT2000. DV cards with hardware encoding can greatly improve the speed of DV editing, and can handle some special effects conversion in real time, and many of these cards have the compression function of mpeg2-2.
Software-coded 1394 card needs codec software to edit DV. The speed is slow, but the cost is relatively low, generally less than 2000 yuan. With the continuous speed-up of CPU, the performance of soft card will gradually improve. Soft cards are also divided into two categories: one is a soft card that uses a vendor-specific codec, such as EZDV. Second, OHCI (Open Host Interface) card.
OHCI 1394 card is the standard interface card of PC, which is the same concept as USB and SCSI. It is supported as a standard device in windows98 and win2000. The manufacturer of this card does not provide software DV codec, but Microsoft DirectX provides free DV codec, and replacing another codec can improve the quality. An outstanding advantage of OHCI card is that it is cheaper than non-OHCI soft card, and it can connect 1394 devices except DV camera, such as hard disk and webcam.
The differences of various OHCI cards are actually very small, and the price differences are mainly caused by factors such as brand/complimentary software/geographical differences. Due to different control chips, 1394 card may have software compatibility problems. According to the experience of netizens, Lao Ku suggested choosing OHCI 1394 cards of TI control chips, such as Pyro, Asus and sunny. The normal price is below 800 yuan. Amateurs please choose OHCI 1394 card, and professionals can consider hardware DV card.
Will different 1394 cards cause different video quality of DV shooting?
This question is equivalent to asking: "Is there any difference in the contents of files stored with different brands of hard disks?" If there is no product manufacturing quality problem, all the video content taken by 1394 card is exactly the same.
In fact, the function of 1394 card is only to copy the data in DV format from the video tape to the hard disk, and the function of 1394 card is only to transmit data like a hard disk interface. Unlike MPEG capture cards, video compression hardware is unnecessary. DV format is also a compressed format, but this work is done in the camera. Even if 1394 card has compression coding hardware, it only works when editing and generating, but not when collecting.
Is there any difference in DV quality generated by editing different 1394 cards?
1394 card with hardware codec function uses the hardware on its card to generate DV, and different cards will have different coding quality. For OHCI 1394 card, the codec function is realized by software codec, so it has nothing to do with the card itself, but only with the quality of the selected software codec. Excellent software codecs include canopus, mainconcept and so on.
After collecting DV to PC, many friends played avi files and found that there was a "problem". The most common ones are as follows. In fact, these problems have nothing to do with the quality of DV shooting: if you record these collected files back to the camera and watch them on TV, you will find that the effect is exactly the same as the source video!
1) flashes when playing, and the picture is discontinuous:
Many friends think this is caused by frame dropping during collection. In fact, this is probably caused by your PC not playing DV files normally. DV playback requires a higher CPU and the speed of disk and memory. Premiere6, MSP6, sclive and other softwares all have the instruction of losing frames in the status bar when capturing pictures. If "Lost Frame 0" is displayed, it means that no frames are lost.
2) Why did you only accept the size of 360x288?
The resolution of PAL DV is 720x576. Because 1394 is only used for data transmission, it is not a direct thing to collect 720x288 through 1394. A friend collected DV and saw that the property was 360x288. In fact, this is because the size of DV playback in directX is set to 50%, and the problem can be solved after it is set to full screen 100%. The method is as follows: play the DV AVI file with the media player and save it in the file->; Attribute-> Advanced-> Set the resolution to full screen in DV video decoder and set it as the default value.
3) Lateral "burr" appears at the edge of the moving object;
The glitch is caused by the fact that a frame of a camera and a TV consists of two fields, and the two fields are generated at different times. On the PC, we see one frame or two games at the same time, so what we see is the "burr" caused by motion displacement. This is hard to accept when watching on PC, but it is an advantage when watching on TV, which makes the action smoother.
If the purpose of production is just to watch on PC, you can use de-interlacing to eliminate the interlacing "burr" when editing.
4) The color of the picture is not good, which is inconsistent with what is seen on the camera;
This is because the color system of PC and TV is different, so a good video editing system should be connected to a monitor instead of watching the effect on the PC monitor.
When I used 1394 card to capture DV, the frame dropped. How to solve it?
First of all, please make sure that your problem is really a frame drop, not a misunderstanding of the last question. Premiere6, MSP6, sclive and other softwares all have the instruction of losing frames in the status bar when capturing pictures. If "Lost Frame 0" is displayed, it means that no frames are lost.
If there are dropped frames, please check the following aspects:
1) Set a separate IRQ number for card 1394, please refer to the installation section.
2) It is suggested that OHCI card be driven by Microsoft DV camera.
3) Check whether the installed versions of windows and directX are correct and whether there are relevant patches. If you use premiere6 and MSP6 to capture, you should also install the corresponding patches.
3) Start the DMA function of the hard disk.
4) Clean up disk fragments
5) Don't do other work on the PC when collecting.
I can't successfully record it back to the camera. How to solve it?
1) First, make sure that your camera supports dv rewind. The European version of dv cancelled this function because of tax problems. The method of using motorcycle can restore the dv rewind function by modifying the firmware of the machine.
2) Other suggestions are the same as the previous questions about capture.