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pipe: Add sliced encoding API and caps

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Reviewed-By: Pohsiang Hsu <pohhsu@microsoft.com>
Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34844>
This commit is contained in:
Sil Vilerino 2024-09-13 13:13:14 -04:00 • committed by Marge Bot
parent c5f5ee41c8
commit 555a13661a
3 changed files with 68 additions and 0 deletions
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39
src/gallium/include/pipe/p_video_codec.h
View file

@ -95,6 +95,45 @@ struct pipe_video_codec
struct pipe_resource *destination,
void **feedback);
/**
* encode an entire frame texture to a bitstream, but get notified asynchronously
* in slice_fences[] as the slices are ready (can be of out order if multi engine encoder)
* for frontend consumption before the full frame is finished.
*
* The different slices are written in each slice_destinations[] buffer
*
* num_slice_objects indicates the number of elements in the input
* array slice_destinations and indicates the number of outputs expected
* in slice_fences
*
* The frame NALs are attached to the first slice buffer
* Any packed slice header (e.g SVC NAL prefix) is attached to each slice buffer
*
* get_feedback information/stats is still only available after full frame
* completion is signaled (e.g pipe_picture_desc::fence)
*
* Driver reports support for this function used with different codecs/profiles
* in PIPE_VIDEO_CAP_ENC_SLICED_NOTIFICATIONS, frontend must check before using it.
*/
void (*encode_bitstream_sliced)(struct pipe_video_codec *codec,
struct pipe_video_buffer *source,
unsigned num_slice_objects,
struct pipe_resource **slice_destinations,
struct pipe_fence_handle **slice_fences,
void **feedback);
/**
* Once encode_bitstream_sliced::slice_fences[slice_idx] is signaled, use this function
* to retrieve the slice size and offset for readback from encode_bitstream_sliced::slice_destinations[slice_idx]
* As the slice may include other packed headers, a list of codec_unit_location_t elements is returned
*/
void (*get_slice_bitstream_data)(struct pipe_video_codec *codec,
void *feedback, /* corresponding to the encode_bitstream_sliced frame call */
unsigned slice_idx, /* [0..max_slices_expected] */
struct codec_unit_location_t *codec_unit_metadata,
unsigned *codec_unit_metadata_count);
/**
* Perform post-process effect
*/

7
src/gallium/include/pipe/p_video_enums.h
View file

@ -220,6 +220,13 @@ enum pipe_video_cap
* The returned value is pipe_enc_cap_gpu_stats_map
*/
PIPE_VIDEO_CAP_ENC_GPU_STATS_RATE_CONTROL_BITS_MAP = 61,
/*
* Support for encoding an entire frame with pipe_video_codec::encode_bitstream_sliced
for a given profile/codec
*
* The returned value is pipe_enc_cap_sliced_notifications
*/
PIPE_VIDEO_CAP_ENC_SLICED_NOTIFICATIONS = 62,
};
enum pipe_video_h264_enc_dbk_filter_mode_flags

22
src/gallium/include/pipe/p_video_state.h
View file

@ -2669,6 +2669,28 @@ union pipe_enc_cap_gpu_stats_map {
uint32_t value;
};
/* Used with PIPE_VIDEO_CAP_ENC_SLICED_NOTIFICATIONS */
union pipe_enc_cap_sliced_notifications {
struct {
/*
* Driver Output. Indicates support for sliced notifications
*/
uint32_t supported: 1;
/*
* Driver Output. When reported indicates that encode_bitstream_sliced
* parameter slice_destinations[i] must contain different pipe_resource
* allocations for each slice i.
*
* When NOT reported, indicates that encode_bitstream_sliced
* parameter slice_destinations[i] must contain the same pipe_resource
* allocation for each slice i. In this case the driver will take care
* of suballocating and calculating offsets within the single allocation
*/
uint32_t multiple_buffers_required: 1;
} bits;
uint32_t value;
};
#ifdef __cplusplus
}
#endif