CN112839220A - Method for realizing quality observation of HDR video through sdi sdk - Google Patents
Method for realizing quality observation of HDR video through sdi sdk Download PDFInfo
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- CN112839220A CN112839220A CN202011629749.4A CN202011629749A CN112839220A CN 112839220 A CN112839220 A CN 112839220A CN 202011629749 A CN202011629749 A CN 202011629749A CN 112839220 A CN112839220 A CN 112839220A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000013500 data storage Methods 0.000 claims abstract description 19
- 230000002159 abnormal effect Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000004364 calculation method Methods 0.000 claims abstract description 5
- 238000004088 simulation Methods 0.000 claims abstract description 5
- 238000007726 management method Methods 0.000 claims abstract description 4
- 230000009191 jumping Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011156 evaluation Methods 0.000 abstract 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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Abstract
The invention discloses a method for realizing quality observation of HDR video through sdi sdk. The method specifically comprises the following steps: (1) the method comprises the steps that the existing files are decoded frame by frame through a decoding module to obtain yuv data, the yuv data are quantitatively stored in a hard disk, and management is achieved by using a yuv data storage module; (2) reading of yuv data is achieved through a yuv reading calculation module, yuv plug flow is achieved through an sdi signal simulation module through an sdi sdk to be converted into an sdi signal, and then output and rendered into video output; (3) data is output to a monitor through sdi sdk, the sdi signal is played through a monitor output module, when playing has a problem, a frame sequence is manually recorded, and an abnormal frame sequence is input to realize yuv rollback to an abnormal frame to realize playing. The invention has the beneficial effects that: the method and the device achieve the purpose of quick positioning, achieve effect preview and problem positioning, simplify video playing of a large number of repeatedly operated monitors required by testers, and achieve quick and accurate evaluation of the quality of HDR videos.
Description
Technical Field
The invention relates to the technical field of video playing, in particular to a method for realizing quality observation of HDR video through sdi sdk.
Background
When testing the hdr video, the user needs to repeatedly play the video in a circulating manner so as to evaluate the video effect, but at present, observation can be performed only from beginning to end, and if some problems occur in the midway, the user can only manually record time and record video problems through a photographing device and the like. Such a process is inconvenient for testing hdr video and problem observations, and therefore a method for implementing frame-in frame-out, pause and play control for video is needed.
To check the contrast effect of video files containing hdr information, we converted the files into SDI signals and output them to a Sony monitor for playback. The monitor itself has no frame advance frame backing, pausing and playing functions, so we need to realize frame advance frame backing, pausing and playing of the video frame output to the monitor based on sdi. We need to design a method to realize fast positioning of the sdi frame position, and when different frame positions are obtained, the frames are pre-buffered to achieve the purpose of fast positioning.
Disclosure of Invention
The invention provides a method for realizing quality observation of HDR video through sdi sdk, which can be used for overcoming the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for realizing quality observation of HDR video through sdi sdk specifically comprises the following steps:
(1) the method comprises the steps that the existing files are decoded frame by frame through a decoding module to obtain yuv data, the yuv data are quantitatively stored in a hard disk, and management is achieved by using a yuv data storage module;
(2) reading of yuv data is achieved through a yuv reading calculation module, yuv plug flow is achieved through an sdi signal simulation module through an sdi sdk to be converted into an sdi signal, and then output and rendered into video output;
(3) data is output to a monitor through sdi sdk, the sdi signal is played through a monitor output module, when playing has a problem, a frame sequence is manually recorded, and an abnormal frame sequence is input to realize yuv rollback to an abnormal frame to realize playing.
The invention designs a method to realize the rapid positioning of the sdi frame position, and when different frame positions are obtained, the frames are cached in advance so as to achieve the purpose of rapid positioning. The method utilizes the advantages of the ssd hard disk and the memory to realize that HDR data is output to the monitor through the sdi sdk, thereby realizing effect preview and problem positioning, simplifying video playing of a large number of monitors which need to be repeatedly operated by testers, and achieving the purpose of quickly and accurately evaluating the quality of the HDR video.
Preferably, in step (1), the configuration mainly performed by the yuv data storage module is to implement ssd high-speed read-write hard disk to store yuv data, and specifically: the yuv data are analyzed to obtain a yuv sequence, the sequence is substituted by frames, the hard disk and the memory realize the pre-loading of a yuv appointed sequence, a yuv data storage module loads a fixed yuv sequence interval all the time, and the memory stores the fixed yuv sequence interval; after reading the yuv appointed sequence, fixedly moving a fixed yuv sequence interval; when pointing to the yuv data in the fixed interval, the data reading speed is improved because the data is in the memory; when the 'yuv sequence' is substituted into the 'frame' and the 'sequence points to' substituted 'and jumps to the specified frame', the effect of fast frame entering and exiting is achieved.
Preferably, in step (2), the yuv reading computation module implements the computation of the yuv sequence after reading the yuv data, and implements the computation of the frame interval after jumping to a specified frame; the concrete implementation is as follows: data of the first ten seconds of the previously read video is stored in the yuv data storage module, and 10 seconds of data is buffered in the yuv data storage module in order as the frame is played back.
Preferably, in step (3), if the abnormal frame exceeds 10 seconds of data, the abnormal frame needs to be decoded again, and the decoded data is stored in the yuv data storage module again.
The invention has the beneficial effects that: when different frame positions are obtained, frames are cached in advance, so that the purpose of quick positioning is achieved, effect preview and problem positioning are achieved, video playing of a large number of monitors which need to be operated repeatedly by testing personnel is simplified, and the purpose of quickly and accurately evaluating the quality of an HDR video is achieved.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
In the embodiment shown in fig. 1, a method for implementing quality observation on an HDR video through sdi sdk specifically includes the following steps:
(1) the method comprises the steps that the existing files are decoded frame by frame through a decoding module to obtain yuv data, the yuv data are quantitatively stored in a hard disk, and management is achieved by using a yuv data storage module; the configuration mainly completed by the yuv data storage module is to realize that one ssd high-speed read-write hard disk stores yuv data, so as to achieve read-write separation and high-speed read-write of the data, and specifically comprises the following steps: the method specifically comprises the following steps: the yuv data are analyzed to obtain a yuv sequence, the sequence is substituted by frames, the hard disk and the memory realize the pre-loading of a yuv appointed sequence, a yuv data storage module loads a fixed yuv sequence interval all the time, and the memory stores the fixed yuv sequence interval; after reading the yuv appointed sequence, fixedly moving a fixed yuv sequence interval; when pointing to the yuv data in the fixed interval, the data reading speed is improved because the data is in the memory; when the 'yuv sequence' is substituted into the 'frame' and the 'sequence points to' substituted 'and jumps to the specified frame', the effect of fast frame entering and exiting is achieved.
(2) Reading of yuv data is achieved through a yuv reading calculation module, yuv plug flow is achieved through an sdi signal simulation module through an sdi sdk to be converted into an sdi signal, and then output and rendered into video output; the yuv reading calculation module is used for calculating a yuv sequence after reading yuv data and calculating a frame interval after jumping to a specified frame; the concrete implementation is as follows: data of the first ten seconds of the previously read video is stored in the yuv data storage module, and 10 seconds of data is buffered in the yuv data storage module in order as the frame is played back. The sdi signal simulation module mainly utilizes different sdi sdk of various manufacturers to realize yuv plug flow to be an sdi signal and then outputs and renders the sdi signal into video output.
(3) Data is output to a monitor through sdi sdk, the sdi signal is played through a monitor output module, when the playing is in problem, a frame sequence is manually recorded, and an abnormal frame sequence is input to realize yuv rollback to an abnormal frame to realize the playing; if the abnormal frame exceeds 10 seconds of data, the abnormal frame needs to be decoded again, and the decoded data is stored in the yuv data storage module again.
The following is a specific example: when yuv starts playing, the fixed 10-second yuv sequence data is loaded in advance. Therefore, it is necessary to wait for a time to load 10 seconds of data; after the playing is carried out for 1 second, the memory is pre-loaded with data for 0-10 seconds; when the playing time reaches 5 seconds, the memory is pre-loaded with data of 0-10 seconds; and when the playing is finished to the 6 th second, the data of 1-11 seconds are loaded in the memory in advance. When the frame is expected to fall back to the 3 rd second data in the 5 th second, the data can be rapidly read because the 3 rd second data exists in the memory. When the frame is expected to advance to the 10 th second in the 5 th second, the data after the 10 th second is not pre-loaded and needs to wait for loading again.
The invention designs a method to realize the rapid positioning of the sdi frame position, and when different frame positions are obtained, the frames are cached in advance so as to achieve the purpose of rapid positioning. The method utilizes the advantages of the ssd hard disk and the memory to realize that HDR data is output to the monitor through the sdi sdk, thereby realizing effect preview and problem positioning, simplifying video playing of a large number of monitors which need to be repeatedly operated by testers, and achieving the purpose of quickly and accurately evaluating the quality of the HDR video.
Claims (4)
1. A method for realizing quality observation of HDR video through sdi sdk is characterized by comprising the following steps:
(1) the method comprises the steps that the existing files are decoded frame by frame through a decoding module to obtain yuv data, the yuv data are quantitatively stored in a hard disk, and management is achieved by using a yuv data storage module;
(2) reading of yuv data is achieved through a yuv reading calculation module, yuv plug flow is achieved through an sdi signal simulation module through an sdi sdk to be converted into an sdi signal, and then output and rendered into video output;
(3) data is output to a monitor through sdi sdk, the sdi signal is played through a monitor output module, when playing has a problem, a frame sequence is manually recorded, and an abnormal frame sequence is input to realize yuv rollback to an abnormal frame to realize playing.
2. The method as claimed in claim 1, wherein in step (1), the yuv data storage module mainly implements a ssd high-speed read-write hard disk to store yuv data, and specifically includes: the yuv data are analyzed to obtain a yuv sequence, the sequence is substituted by frames, the hard disk and the memory realize the pre-loading of a yuv appointed sequence, a yuv data storage module loads a fixed yuv sequence interval all the time, and the memory stores the fixed yuv sequence interval; after reading the yuv appointed sequence, fixedly moving a fixed yuv sequence interval; when pointing to the yuv data in the fixed interval, the data reading speed is improved because the data is in the memory; when the 'yuv sequence' is substituted into the 'frame' and the 'sequence points to' substituted 'and jumps to the specified frame', the effect of fast frame entering and exiting is achieved.
3. The method of claim 2, wherein in step (2), the yuv reading computation module implements reading of yuv data, then computes yuv sequence, and implements frame interval computation after jumping to a specified frame; the concrete implementation is as follows: data of the first ten seconds of the previously read video is stored in the yuv data storage module, and 10 seconds of data is buffered in the yuv data storage module in order as the frame is played back.
4. A method for achieving quality observation on HDR video through sdi sdk as claimed in claim 3, wherein in step (3), if the abnormal frame exceeds 10 seconds of data, the abnormal frame needs to be re-decoded, and the decoded data is stored in the yuv data storage module again.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1550311A1 (en) * | 2002-09-13 | 2005-07-06 | Karl Storz Imaging Inc. | Video recording and image capture device |
| CN101316292A (en) * | 2007-05-29 | 2008-12-03 | 联发科技股份有限公司 | Electronic apparatus of playing and editing multimedia data |
| CN102196225A (en) * | 2010-03-19 | 2011-09-21 | 北大方正集团有限公司 | Video collection playback system and method |
| CN102693292A (en) * | 2012-05-16 | 2012-09-26 | 武汉理工大学 | Method for processing and rapidly retrieving inland ship videos based on RFID |
| KR20130002271A (en) * | 2011-06-28 | 2013-01-07 | 엑시스 에이비 | Quality checking in video monitoring system |
| CN104168466A (en) * | 2014-08-22 | 2014-11-26 | 广东威创视讯科技股份有限公司 | Multi-screen video synchronous playing method and device |
| CN108632568A (en) * | 2017-03-17 | 2018-10-09 | 北京京东尚科信息技术有限公司 | Review method, apparatus, electronic equipment and the readable storage medium storing program for executing of monitor video |
| CN212137851U (en) * | 2020-03-13 | 2020-12-11 | 伟乐视讯科技股份有限公司 | Video output device supporting HEVC decoding |
-
2020
- 2020-12-31 CN CN202011629749.4A patent/CN112839220A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1550311A1 (en) * | 2002-09-13 | 2005-07-06 | Karl Storz Imaging Inc. | Video recording and image capture device |
| CN101316292A (en) * | 2007-05-29 | 2008-12-03 | 联发科技股份有限公司 | Electronic apparatus of playing and editing multimedia data |
| CN102196225A (en) * | 2010-03-19 | 2011-09-21 | 北大方正集团有限公司 | Video collection playback system and method |
| KR20130002271A (en) * | 2011-06-28 | 2013-01-07 | 엑시스 에이비 | Quality checking in video monitoring system |
| CN102693292A (en) * | 2012-05-16 | 2012-09-26 | 武汉理工大学 | Method for processing and rapidly retrieving inland ship videos based on RFID |
| CN104168466A (en) * | 2014-08-22 | 2014-11-26 | 广东威创视讯科技股份有限公司 | Multi-screen video synchronous playing method and device |
| CN108632568A (en) * | 2017-03-17 | 2018-10-09 | 北京京东尚科信息技术有限公司 | Review method, apparatus, electronic equipment and the readable storage medium storing program for executing of monitor video |
| CN212137851U (en) * | 2020-03-13 | 2020-12-11 | 伟乐视讯科技股份有限公司 | Video output device supporting HEVC decoding |
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