Arttu Ylä-Outinen
984e7cb4e0
Fix setting QP when rate control is disabled.
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When rate control is disabled, QP and lambda are now selected like they
were before rate control was implemented.
2015-06-01 13:57:11 +03:00
Arttu Ylä-Outinen
b0435d37a9
Update rate control parameters.
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On each frame, adjust the parameters alpha and beta in the equation
lambda = alpha * pow(R, beta)
2015-05-29 11:50:08 +03:00
Arttu Ylä-Outinen
b24d92bd6e
Move initialization of constants to encoder.c.
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Some constants used in rate control are now initialized only once instead
of being computed on every frame. Adds pixels_per_pic, target_avg_bppic,
target_avg_bpp and gop_layer_weights to encoder_control_t.
2015-05-29 11:45:36 +03:00
Arttu Ylä-Outinen
b54d5aa91f
Select GOP picture weights according to bitrate.
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Pictures in same layer have equal weights. At low bitrates, the difference
between low and high layers is greater than at high bitrates.
2015-05-29 11:43:42 +03:00
Arttu Ylä-Outinen
93d2a95ddc
Implement rate control in lambda domain.
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- Rate control adjusts the lambda value.
- QP is selected according to lambda.
- Bits are allocated for GOPs and individual pictures.
2015-05-19 11:40:51 +03:00
Arttu Ylä-Outinen
4a5698a6ba
Implement basic rate control.
2015-05-19 10:42:17 +03:00
