Frame accurate splicing

A computer implemented method comprising:

• receiving, by a computing system, first compressed video content;
• receiving, by the computing system, second compressed video content;
• identifying, by the computing system, a first splice point for the first compressed video content;
• identifying a particular frame in the first compressed video content that precedes the first splice point;
• determining that the particular frame depends on information included in a subsequent frame of the first compressed video content that is after the first splice point;
• altering, by the computing system and in response to determining that the particular frame depends on information included in the subsequent frame, time stamp information of the subsequent frame;
• transmitting, by the computing system and to a video presentation system, the particular frame, the subsequent frame along with the altered time stamp information, and at least a portion of the second compressed video content;
• identifying, by the computing system, a second splice point for the second compressed video content;
• identifying an additional frame in the second compressed video content that is after the second splice point;
• determining that the additional frame depends on information included in a preceding frame of the second compressed video content that is before the second splice point;
• and
• altering time stamp information of the preceding frame, wherein altering the time stamp information of the preceding frame is performed (1) by the computing system, (2) in response to determining that the additional frame depends on information included in the preceding frame, and (3) prior to transmitting the particular frame, the subsequent frame along with the altered time stamp information, and at least a portion of the second compressed video content.

A tangible, non-transitory recordable medium having recorded thereon instructions, that when executed, cause a computing system to perform actions that comprise:

• receiving first compressed video content;
• receiving second compressed video content;
• identifying a splice point for the first compressed video content;
• identifying a particular frame in the first compressed video content that precedes the splice point;
• determining that the particular frame depends on information included in a subsequent frame of the first compressed video content that is after the splice point;
• altering, in response to determining that the particular frame depends on information included in the subsequent frame, time stamp information of the subsequent frame, wherein altering the time stamp information of the subsequent frame comprises:
• reading a presentation time stamp value associated with the subsequent frame;
• subtracting a particular value from the presentation time stamp value;
• and
• storing the resulting value of subtracting the particular value from the presentation time stamp value as a new presentation time stamp for the subsequent frame;
• and
• transmitting, to a video presentation system, the particular frame, the subsequent frame along with the altered time stamp information, and at least a portion of the second compressed video content;
• wherein the particular value is between 5 ms and 150 ms.

A tangible, non-transitory recordable medium having recorded thereon instructions, that when executed, cause a computing system to perform actions that comprise:

• receiving first compressed video content;
• receiving second compressed video content;
• identifying a first splice point for the first compressed video content;
• identifying a particular frame in the first compressed video content that precedes the first splice point;
• determining that the particular frame depends on information included in a subsequent frame of the first compressed video content that is after the first splice point;
• altering, in response to determining that the particular frame depends on information included in the subsequent frame, time stamp information of the subsequent frame;
• transmitting, to a video presentation system, the particular frame, the subsequent frame along with the altered time stamp information, and at least a portion of the second compressed video content;
• identifying a second splice point for the second compressed video content;
• identifying an additional frame in the second compressed video content that is after the second splice point;
• determining that the additional frame depends on information included in a preceding frame of the second compressed video content that is before the second splice point;
• and
• altering time stamp information of the preceding frame, wherein altering the time stamp information of the preceding frame is performed (1) by the computing system, (2) in response to determining that the additional frame depends on information included in the preceding frame, and (3) prior to transmitting the particular frame, the subsequent frame along with the altered time stamp information, and at least a portion of the second compressed video content.

A computing system comprising:

• a communications interface;
• one or more computer readable memories storing executable instructions;
• and
• one or more processors that interact with the one or more computer readable memories and execute instructions that cause the computing system to perform operations comprising:
• receiving first compressed video content;
• receiving second compressed video content;
• identifying a splice point for the first compressed video content;
• identifying a particular frame in the first compressed video content that precedes the splice point;
• determining that the particular frame depends on information included in a subsequent frame of the first compressed video content that is after the splice point;
• altering, in response to determining that the particular frame depends on information included in the subsequent frame, time stamp information of the subsequent frame, wherein altering the time stamp information of the subsequent frame comprises:
• reading a presentation time stamp value associated with the subsequent frame;
• subtracting a particular value from the presentation time stamp value;
• and
• storing the resulting value of subtracting the particular value from the presentation time stamp value as a new presentation time stamp for the subsequent frame;
• and
• transmitting, to a video presentation system, the particular frame, the subsequent frame along with the altered time stamp information, and at least a portion of the second compressed video content;
• wherein the particular value is between 5 ms and 150 ms.