Anti-tearing picture processing method and apparatus

A picture processing method comprising:

• receiving first indication information from a decoder side during a process of sending a first picture in a video stream to the decoder side;
• entering a target mode in response to the first indication information;
• adjusting a coding parameter in the target mode to reduce an amount of encoded data of a second sub-picture following a first sub-picture of the first picture;
• setting an inter-coding reference frame of a second picture following the first picture to the first picture;
• receiving second indication information from the decoder side;
• exiting the target mode in response to the second indication information;
• terminating sending of the first picture to the decoder side in response to exiting the target mode;
• and
• sending a latest successfully encoded picture in the video stream to the decoder side.

A picture processing method comprising:

• determining, when scene switching occurs, whether a second picture in a video stream meets a first preset condition based on a base layer of a first sub-picture of the second picture, wherein each picture in the video stream comprises a plurality of sub-pictures, and wherein each sub-picture comprises a base layer and at least one enhancement layer;
• sending first indication information to a decoder side when the second picture meets the first preset condition to indicate to the decoder side to send a second picture within a second display time period of the second picture for displaying the second picture again, wherein the second picture is a picture in the video stream that is sent for displaying within a second display time period prior to the second display time period;
• determining, when scene switching occurs, whether the second picture meets a second preset condition based on an enhancement layer of the first sub-picture of the second picture;
• entering a target mode when the second picture meets the second preset condition, and sending second indication information to the decoder side in the target mode to indicate to the decoder side to enter the target mode;
• adjusting a coding parameter in the target mode to reduce a first amount of encoded data of a second sub-picture following the first sub-picture in the second picture;
• and
• setting an inter-coding reference frame of a third picture following the second picture to the second picture.

A picture processing method comprising:

• receiving first indication information from an encoder side during a process of receiving a second picture in a video stream from the encoder side;
• sending a first picture within a second display time period of the second picture for displaying the first picture in response to the first indication information, wherein the first picture is a picture in the video stream that is also sent within a first display time period for displaying the first picture, and wherein the second display time period is after the first display time period;
• receiving second indication information from the encoder side;
• entering a target mode in response to the second indication information;
• sending the first picture in the target mode for displaying the first picture, and storing received sub-pictures of the second picture into a buffer;
• receiving third indication information from the encoder side;
• exiting the target mode in response to the third indication information;
• and
• sending a latest successfully decoded picture for displaying the a latest successfully decoded picture in response to exiting the target mode.

A picture processing apparatus comprising:

• a memory configured to store instructions;
• and
• a processor coupled to the memory and configured to execute the instructions to cause the picture processing apparatus to:
• receive a first picture and a second picture in a video stream, wherein the first picture has a first display time period and the second picture has a second display time period after the first display time period, and wherein each picture in the video stream comprises a plurality of sub-pictures, and wherein each sub-picture comprises a base layer;
• determine whether the second picture meets a first preset condition based on a base layer of a first sub-picture of the second picture;
• send the first picture within the second display time period for displaying the first picture when the second picture meets the first preset condition, wherein the first picture is also sent within the first display time period for displaying the first picture;
• determine, when scene switching occurs, whether the second picture meets a second preset condition based on the base layer of the first sub-picture of the second picture;
• and
• send the first picture within the second display time period of the second picture for displaying the first picture when the second picture meets the second preset condition.