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Streaming media playing method based on DireotShow platform
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A playback method and streaming media technology, applied to parts of color TV, parts of TV system, TV, etc.
Inactive Publication Date: 2011-01-12
广东佳的美智能科技有限公司
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[0004]The purpose of the present invention is to overcome the problems of image display errors and sound distortion caused by incompatibility due to different input signal source formats in the prior art, and to provide a Appropriate input source format, and then corresponding image and audio conversion to achieve correct image display and accurate audio playback method based on the DirectShow platform streaming media playback method
Method used
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[0030]During the image conversion process, first identify the format of the current input source, and compare the identified format with the format of the initial input source. If the format has changed, the device controller stops working and modifies the device parameters to match the format of the corresponding input source. Same, the video stream continues to be transmitted according to the modified standard; if the standard has not changed, the video stream is transmitted according to the original standard; for example, the current PAL / SECAM, set the data stream size according to PAL / SECAM: 720X576, NTSC: 720X480, Set their corresponding parameters to the device, the following is the specific implementation of the video system selection program in this embodiment:
[0031] SetCrossbar(inCrossabr); / / Set the corresponding input source
[0032] Sleep(800); / / Stop waiting, the time must be enough, otherwise the video format will be obtained
[0033] mistaken
[0034] Vid...
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Abstract
The invention discloses a streaming media playing method based on a DireotShow platform, which comprises the following steps of: selection of a video system, in which a system of a video stream input The invention discloses a streaming media playing method based on a DireotShow platform, which comprises the following steps of: selection of a video system, in which a system of a video stream inputsrresponds to the country code is read from the channel list according to the country code corresponding to the video stream input source, and is sent to a current equipment drive, and corresponding aorresponds to the country code is read from the channel list according to the country code corresponding to the video stream input source, and is sent to a current equipment drive, and corresponding audio is modulated by current equipment.udio is modulated by current equipment.ource is identified, the identified system is compared with a system of an initial input source, an equipment controller stops working if the system has been changed, equipment parameters are modifiesource is identified, the identified system is compared with a system of an initial input source, an equipment controller stops working if the system has been changed, equipment parameters are modified to ensure that the system is the same as that of the corresponding input source, and video steam continues to be transmitted according to the modified system standard; and selection of a sound systed to ensure that the system is the same as that of the corresponding input source, and video steam continues to be transmitted according to the modified system standard; and selection of a sound system, in which an original sound is produced according to each country code with a PAL or SECAM system during channel scanning, each original sound corresponds to a frequency, a plurality of the sounds am, in which an original sound is produced according to each country code with a PAL or SECAM system during channel scanning, each original sound corresponds to a frequency, a plurality of the sounds and a plurality of the frequencies form a channel list, whether the system of the video stream input source is the PAL or SECAM system is judged, if so, the sound corresponding to the frequency which cnd a plurality of the frequencies form a channel list, whether the system of the video stream input source is the PAL or SECAM system is judged, if so, the sound corresponding to the frequency which co
Description
technical field [0001] The invention relates to a streaming media playing method, in particular to a streaming media playing method based on the DireotShow platform. Background technique [0002] The popularization of computers and the rise of home entertainment will inevitably drive the growth of home entertainment electronics consumption. DirectShow is a system platform for multimedia applications with high performance requirements such as playback of media files in various formats, audio and video collection, etc. on the Windows platform. It supports a variety of media file formats, including ASF, MPEG, AVI, MP3 and WAV files, and supports the use of WDM drivers or early VFW drivers for multimedia stream acquisition. DirectShow integrates other DirectX technologies, can automatically detect and use available audio and video hardware acceleration, and can also support systems without hardware acceleration. DirectShow greatly simplifies media playback, format conversion a...
Claims
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Application Information
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