mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2026-08-10 15:58:37 +00:00
Niklas Haas
770a1ef28d
The current code only checks to see if the entire operation is a no-op, but doesn't allow removing unneeded components from the operation. Results in a large number of minor improvements, e.g. rgba 16x16 -> ya8 16x16: u8_read_packed_xyzw u8_to_f32_xyzw f32_linear_x_xxx00 f32_dither_x_0_16x16 - f32_min_xw + f32_min_x f32_to_u8_xw u8_permute_xyz_y_w u8_write_packed_xy or: rgba 16x16 -> yuva444p10le 16x16: u8_read_packed_xyzw u8_to_f32_xyzw f32_linear_xyzw_xxx0x_xxx0x_xxx0x_000x0 f32_dither_xyzw_0_3_2_5_16x16 - f32_min_xyzw + f32_min_w f32_to_u16_xyzw u16_write_planar_xyzw And some major ones, e.g. yuva444p 16x16 -> gbrap 16x16: - u8_read_planar_xyzw - u8_to_f32_xyzw + u8_read_planar_x + u8_write_planar_x + Sub-pass #1: + u8_read_planar_xyz + u8_to_f32_xyz f32_linear_xyz_x0x0x_xxx0x_xx00x f32_dither_xyz_0_3_2_16x16 - f32_max_xyzw - f32_min_xyzw - f32_to_u8_xyzw - u8_write_planar_xyzw + f32_max_xyz + f32_min_xyz + f32_to_u8_xyz + u8_write_planar_xyz Which is now split between two subpasses, one for the no-op alpha copy and one for the yuv444 -> gbrp conversion. This has been previously blocked by the SWS_OP_MIN/MAX clamp on the RGB channels marking the alpha channel as dirty, even though it should be a no-op on the alpha channel. Signed-off-by: Niklas Haas <git@haasn.dev>