Optimizing encoding operations when generating encoded versions of a media title
In various embodiments, a sequence-based encoding application partitions a set of shot sequences associated with a media title into multiple clusters based on at least one feature that characterizes media content and/or encoded media content associated with the media title. The clusters include at least a first cluster and a second cluster. The sequence-based encoding application encodes a first shot sequence using a first operating point to generate a first encoded shot sequence. The first shot sequence and the first operating point are associated with the first cluster. By contrast, the sequence-based encoding application encodes a second shot sequence using a second operating point to generate a second encoded shot sequence. The second shot sequence and the second operating point are associated with the second cluster. Subsequently, the sequence-based encoding application generates an encoded media sequence based on the first encoded shot sequence and the second encoded shot sequence.
1. A computer-implemented method for encoding media content, the method comprising:
partitioning a media title into a plurality of shot sequences;
generating a plurality of encoded shot sequences based upon the plurality of shot sequences and a first encoder configuration;
generating a set of encoding recipes using an encoder based upon at least one compensated target metric value, and the plurality of encoded shot sequences, wherein each encoding recipe included in the set of encoding recipes includes a plurality of encoding points for the plurality of shot sequences; and
generating a plurality of target encoded media sequences based upon the plurality of shot sequences, a second encoder configuration, and at least one encoding recipe included in the set of encoding recipes, wherein the second encoder configuration is different from the first encoder configuration, and wherein at least a portion of the target encoded media sequences is subsequently streamed to an endpoint device during playback of the media title.
2. The computer-implemented method of claim 1 , wherein generating the plurality of target encoded media sequences comprises generating encoded shot sequences based upon the second encoder configuration and the at least one encoding recipe, and combining different encoded shot sequences to generate at least one target encoded media sequence.
3. The computer-implemented method of claim 1 , further comprising generating the at least one compensated target metric value based upon at least one target metric value and a configuration factor.
4. The computer-implemented method of claim 3 , wherein the configuration factor represents an impact of varying a configuration of the encoder from the first encoder configuration and the second encoder configuration.
5. The computer-implemented method of claim 1 , wherein generating the target encoded media sequences comprises selecting a target metric value and using the plurality of encoding points from an encoding recipe from the set of encoding recipes to generate associated encoded shot sequences.
6. The computer-implemented method of claim 1 , wherein each encoding recipe included in the plurality of encoding recipes is associated with a different target metric value and includes an encoding point for each shot sequence included in the plurality of shot sequences.
7. The computer-implemented method of claim 1 , wherein an encoding point is associated with a target value for a bit rate, a visual quality metric, or a distortion metric.
8. The computer-implemented method of claim 1 , wherein generating the set of encoding recipes, for each compensated target metric value included in a plurality of compensated target metric values, generating an associated encoding recipe based upon a plurality of encoded shot sequences generated by the encoder using the first encoder configuration.
9. The computer-implemented method of claim 8 , wherein generating the associated encoding recipe for a first compensated target metric value included in the plurality of target metric values comprises:
generating a plurality of shot encode points, wherein each shot encode point included in the plurality of shot encode points includes an encoding point, an encoded shot sequence from the plurality of encoded shot sequences, a bit rate, and a distortion level;
generating a plurality of distortion curves by plotting the plurality of shot encode points based upon the bitrate and the distortion level from each shot encode point from the plurality of shot encode points;
evaluating the plurality of shot encode points along the plurality of distortion curves to generate a convex hull;
selecting a shot encode point included in the convex hull that resides closest to the compensated target metric value; and
generating the associated encoding recipe based upon the selected shot encode point.
10. The computer-implemented method of claim 1 , wherein the first encoder configuration and the second encoder configuration specify at least one of a quality parameter of the encoder or a speed parameter of the encoder, and wherein the first encoder configuration specifies at least one of a faster speed or a lower quality than the second encoder configuration.
11. A non-transitory computer-readable medium storing program instructions that, when executed by a processor, configures the processor to perform the steps of:
partitioning a media title into a plurality of shot sequences;
generating a plurality of encoded shot sequences based upon the plurality of shot sequences and a first encoder configuration;
generating a set of encoding recipes using an encoder based upon the plurality of encoded shot sequences; and
generating a plurality of target encoded media sequences based upon the plurality of shot sequences, a second encoder configuration, and at least one encoding recipe included in the set of encoding recipes, wherein the second encoder configuration is different from the first encoder configuration, and wherein at least a portion of the target encoded media sequences is subsequently streamed to an endpoint device during playback of the media title.
12. The non-transitory computer-readable medium of claim 11 , wherein generating the plurality of target encoded media sequences comprises generating encoded shot sequences based upon the second encoder configuration and the at least one encoding recipe, and combining different encoded shot sequences to generate at least one target encoded media sequence.
13. The non-transitory computer-readable medium of claim 11 , wherein the set of encoding recipes is further generated based upon at least one compensated target metric value, and the compensated target metric value comprises at least one of a target bitrate, a target quality score, or a target distortion level.
14. The non-transitory computer-readable medium of claim 11 , wherein the set of encoding recipes is further generated based upon at least one compensated target metric value, and further comprising generating the compensated target metric value based on a configuration factor, wherein the configuration factor represents an impact of varying a configuration of the encoder from the first encoder configuration and the second encoder configuration.
15. The non-transitory computer-readable medium of claim 11 , wherein generating the target encoded media sequences comprises selecting a target metric value and using a plurality of encoding points included in an encoding recipe from the set of encoding recipes to generate associated encoded shot sequences.
16. The non-transitory computer-readable medium of claim 11 , wherein a plurality of encoding points included in an encoding recipe specify how to encode the plurality of shot sequences to generate the plurality of target encoded media sequences.
17. The non-transitory computer-readable medium of claim 11 , wherein generating the set of encoding recipes comprises, for each compensated target metric value included in a plurality of compensated target metric values, generating an associated encoding recipe based upon a plurality of encoded shot sequences generated by the encoder using the first encoder configuration.
18. The non-transitory computer-readable medium of claim 17 , wherein generating the plurality of encoding recipes comprises:
generating the plurality of encoded shot sequences;
performing a plurality of convex hull operations on the plurality of encoded shot sequences to generate a convex hull; and
generating the plurality of encoding recipes based upon the convex hull.
19. The non-transitory computer-readable medium of claim 17 , wherein the first encoder configuration and the second encoder configuration specify at least one of a quality parameter of the encoder or a speed parameter of the encoder, and wherein the first encoder configuration specifies at least one of a faster speed or a lower quality than the second encoder configuration.
20. A system, comprising:
a memory storing instructions; and
a processor that is coupled to the memory and, when executing the instructions, is configured to:
partition a media title into a plurality of shot sequences;
generate a plurality of encoded shot sequences based upon the plurality of shot sequences;
generate a set of encoding recipes using an encoder based upon the plurality of encoded shot sequences; and
generate a plurality of target encoded media sequences based upon the plurality of shot sequences and at least one encoding recipe included in the set of encoding recipes wherein at least a portion of the target encoded media sequences is subsequently streamed to an endpoint device during playback of the media title.