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pipe: Two pass video encode definitions

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Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Reviewed-by: Pohsiang (John) Hsu <pohhsu@microsoft.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35263>
This commit is contained in:
Sil Vilerino 2025-05-22 13:33:05 -04:00 • committed by Marge Bot
parent 0e63becefb
commit daa16cf0d4
3 changed files with 116 additions and 0 deletions
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1
src/gallium/include/pipe/p_video_codec.h
View file

@ -55,6 +55,7 @@ struct pipe_video_codec
unsigned height;
unsigned max_references;
bool expect_chunked_decode;
struct pipe_enc_two_pass_encoder_config two_pass;
/**
* destroy this video decoder

4
src/gallium/include/pipe/p_video_enums.h
View file

@ -239,6 +239,10 @@ enum pipe_video_cap
* Support for motion vector maps in encoder picture params pipe_enc_cap_motion_vector_map
*/
PIPE_VIDEO_CAP_ENC_MOTION_VECTOR_MAPS = 65,
/*
* Support for two pass encode in encoder picture params pipe_enc_cap_two_pass
*/
PIPE_VIDEO_CAP_ENC_TWO_PASS = 66,
};
enum pipe_video_h264_enc_dbk_filter_mode_flags

111
src/gallium/include/pipe/p_video_state.h
View file

@ -610,6 +610,64 @@ struct pipe_enc_move_info
bool overlapping_rects;
};
struct pipe_enc_two_pass_encoder_config
{
/*
* Enables two pass encoding for all supported
frames during the lifetime of the encoder
*/
bool enable;
/*
* Indicates the downscaling factor for the first pass
*
* Please check pipe_cap_two_pass for the supported downscaling factors
*
* pow2_downscale_factor | 1st pass width | 1st pass height
* 0 | InputWidth | InputHeight
* 1 | InputWidth / 2 | InputHeight / 2
* 2 | InputWidth / 4 | InputHeight / 4
* n | InputWidth / 2^n | InputHeight / 2^n
*/
unsigned pow2_downscale_factor;
/*
* When set, the first pass (low resolution) dpb texture output
* will not be written by the driver. It is responsability of the
* app to downscale the 2nd pass (full resolution) dpb recon texture into
* a downscaled recon dpb texture to be used as a downscaled dpb
* reference in future encoded frames.
*
* When not set, the driver writes the 1st pass output recon dpb
* texture and that can be directly used as a downscaled dpb
* reference in future encoded frames.
*
* Please check pipe_cap_two_pass.supports_1pass_recon_writing_skip
*/
bool skip_1st_dpb_texture;
};
/*
* Used when pipe_enc_two_pass_encoder_config
* is enabled in the encoder
*/
struct pipe_enc_two_pass_frame_config
{
/*
* Downscaled version of the source buffer to be encoded
* input to the 1st encoder pass
*/
struct pipe_video_buffer *downscaled_source;
/*
* Disabled two pass for this frame
*
* Requires pipe_cap_two_pass.supports_dynamic_1st_pass_skip
*
*/
bool skip_1st_pass;
};
struct pipe_enc_raw_header
{
uint8_t type; /* nal_unit_type or obu_type */
@ -849,6 +907,7 @@ struct pipe_h264_enc_dpb_entry
uint32_t temporal_id;
bool is_ltr;
struct pipe_video_buffer *buffer;
struct pipe_video_buffer *downscaled_buffer; /* for two pass */
bool evict;
enum pipe_h2645_enc_picture_type picture_type;
};
@ -928,6 +987,8 @@ struct pipe_h264_enc_picture_desc
uint8_t ref_list1[PIPE_H264_MAX_NUM_LIST_REF]; /* index in dpb, PIPE_H2645_LIST_REF_INVALID_ENTRY invalid */
struct util_dynarray raw_headers; /* struct pipe_enc_raw_header */
struct pipe_enc_two_pass_frame_config twopass_frame_config;
};
struct pipe_h265_st_ref_pic_set
@ -1264,6 +1325,7 @@ struct pipe_h265_enc_dpb_entry
uint32_t temporal_id;
bool is_ltr;
struct pipe_video_buffer *buffer;
struct pipe_video_buffer *downscaled_buffer; /* for two pass */
bool evict;
};
@ -1326,6 +1388,8 @@ struct pipe_h265_enc_picture_desc
uint8_t ref_list1[PIPE_H265_MAX_NUM_LIST_REF]; /* index in dpb, PIPE_H2645_LIST_REF_INVALID_ENTRY invalid */
struct util_dynarray raw_headers; /* struct pipe_enc_raw_header */
struct pipe_enc_two_pass_frame_config twopass_frame_config;
};
struct pipe_av1_enc_rate_control
@ -2776,6 +2840,53 @@ union pipe_enc_cap_qpmap {
uint32_t value;
};
/* Used with PIPE_VIDEO_CAP_ENC_TWO_PASS */
union pipe_enc_cap_two_pass {
struct {
/*
* Driver Output. Indicates support for setting pipe_enc_two_pass_encoder_config.enable
*/
uint32_t supports_two_pass: 1;
/*
* Driver Output. Indicates minimum value supported for pipe_enc_two_pass_encoder_config.pow2_downscale_factor
*/
uint32_t min_pow2_downscale_factor: 3;
/*
* Driver Output. Indicates maximum value supported for pipe_enc_two_pass_encoder_config.pow2_downscale_factor
*/
uint32_t max_pow2_downscale_factor: 3;
/*
* Driver output. Indicates support for skipping the first pass
* dpb output generation by setting pipe_enc_two_pass_encoder_config.skip_1st_dpb_texture = true
* and instead having the caller externally
* downscaling the dpb textures from the 2nd pass recon dpb texture.
*
* Using external downscaling may provide better quality at a higher
* performance cost, apps can choose this as a trade-off.
*
* When this mode is enabled, the driver will only generate the 2nd pass recon
* if the frame is used as reference and the app will be responsible for
* generating the downscaled dpb texture from the 2nd pass recon dpb texture
* to pass to future frames that use the reference.
*
* If not supported, the 1st pass recon pic output will always
* be written by the driver
*/
uint32_t supports_1pass_recon_writing_skip: 1;
/*
* Driver output. Indicates support for skipping the first pass
* on arbitrary frames by setting pipe_enc_two_pass_frame_config.skip_1st_pass = true
* in the picture params.
*
* If not supported, all supported frame types by the driver will have
* two pass enabled during the encoder lifetime, ignoring the value in
* pipe_enc_two_pass_frame_config.skip_1st_pass
*/
uint32_t supports_dynamic_1st_pass_skip: 1;
} bits;
uint32_t value;
};
/* Used with PIPE_VIDEO_CAP_ENC_MOTION_VECTOR_MAPS */
union pipe_enc_cap_motion_vector_map {
struct {