From: Lynne <dev@lynne.ee>
To: ffmpeg-devel@ffmpeg.org
Cc: Lynne <dev@lynne.ee>
Subject: [FFmpeg-devel] [PATCH 5/6] vulkan_h264: make all temporary structs temporary
Date: Mon, 31 Mar 2025 04:37:41 +0200
Message-ID: <20250331023753.285499-5-dev@lynne.ee> (raw)
In-Reply-To: <20250331023753.285499-1-dev@lynne.ee>
This commit moves all temporary structs used for decoding out
of the common picture header and onto stack.
---
libavcodec/vulkan_decode.c | 1 +
libavcodec/vulkan_decode.h | 3 +
libavcodec/vulkan_h264.c | 322 +++++++++++++++++++------------------
3 files changed, 168 insertions(+), 158 deletions(-)
diff --git a/libavcodec/vulkan_decode.c b/libavcodec/vulkan_decode.c
index 893f8fca3d..5505fbda28 100644
--- a/libavcodec/vulkan_decode.c
+++ b/libavcodec/vulkan_decode.c
@@ -253,6 +253,7 @@ int ff_vk_decode_start_frame(AVCodecContext *avctx, FFVulkanDecodePicture *vp,
vp->nb_slices = 0;
vp->slices_size = 0;
+ vp->intra_pic_flag = 1;
/* Host map the input slices data if supported */
if (complete && ctx->s.extensions & FF_VK_EXT_EXTERNAL_HOST_MEMORY) {
diff --git a/libavcodec/vulkan_decode.h b/libavcodec/vulkan_decode.h
index 103be09943..5b14d962f2 100644
--- a/libavcodec/vulkan_decode.h
+++ b/libavcodec/vulkan_decode.h
@@ -105,6 +105,9 @@ typedef struct FFVulkanDecodePicture {
/* Vulkan functions needed for destruction, as no other context is guaranteed to exist */
PFN_vkWaitSemaphores wait_semaphores;
PFN_vkDestroyImageView destroy_image_view;
+
+ /* Codec specific */
+ int intra_pic_flag; /* Only used by H264 */
} FFVulkanDecodePicture;
/**
diff --git a/libavcodec/vulkan_h264.c b/libavcodec/vulkan_h264.c
index 71a9c06801..e697583ba9 100644
--- a/libavcodec/vulkan_h264.c
+++ b/libavcodec/vulkan_h264.c
@@ -32,99 +32,8 @@ const FFVulkanDecodeDescriptor ff_vk_dec_h264_desc = {
},
};
-typedef struct H264VulkanDecodePicture {
- FFVulkanDecodePicture vp;
-
- /* Current picture */
- StdVideoDecodeH264ReferenceInfo h264_ref;
- VkVideoDecodeH264DpbSlotInfoKHR vkh264_ref;
-
- /* Picture refs */
- H264Picture *ref_src [H264_MAX_PICTURE_COUNT];
- StdVideoDecodeH264ReferenceInfo h264_refs [H264_MAX_PICTURE_COUNT];
- VkVideoDecodeH264DpbSlotInfoKHR vkh264_refs[H264_MAX_PICTURE_COUNT];
-
- /* Current picture (contd.) */
- StdVideoDecodeH264PictureInfo h264pic;
- VkVideoDecodeH264PictureInfoKHR h264_pic_info;
-
- /* Current picture */
- VkVideoPictureResourceInfoKHR ref;
- VkVideoReferenceSlotInfoKHR ref_slot;
-
- /* Picture refs. H264 has the maximum number of refs (36) of any supported codec. */
- VkVideoPictureResourceInfoKHR refs [36];
- VkVideoReferenceSlotInfoKHR ref_slots[36];
-
- /* Main decoding struct */
- VkVideoDecodeInfoKHR decode_info;
-} H264VulkanDecodePicture;
-
const static int h264_scaling_list8_order[] = { 0, 3, 1, 4, 2, 5 };
-static int vk_h264_fill_pict(AVCodecContext *avctx, H264Picture **ref_src,
- VkVideoReferenceSlotInfoKHR *ref_slot, /* Main structure */
- VkVideoPictureResourceInfoKHR *ref, /* Goes in ^ */
- VkVideoDecodeH264DpbSlotInfoKHR *vkh264_ref, /* Goes in ^ */
- StdVideoDecodeH264ReferenceInfo *h264_ref, /* Goes in ^ */
- H264Picture *pic, int is_current,
- int is_field, int picture_structure,
- int dpb_slot_index)
-{
- FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
- FFVulkanDecodeShared *ctx = dec->shared_ctx;
- H264VulkanDecodePicture *hp = pic->hwaccel_picture_private;
- FFVulkanDecodePicture *vkpic = &hp->vp;
-
- int err = ff_vk_decode_prepare_frame(dec, pic->f, vkpic, is_current,
- dec->dedicated_dpb);
- if (err < 0)
- return err;
-
- *h264_ref = (StdVideoDecodeH264ReferenceInfo) {
- .FrameNum = pic->long_ref ? pic->pic_id : pic->frame_num,
- .PicOrderCnt = { pic->field_poc[0], pic->field_poc[1] },
- .flags = (StdVideoDecodeH264ReferenceInfoFlags) {
- .top_field_flag = is_field ? !!(picture_structure & PICT_TOP_FIELD) : 0,
- .bottom_field_flag = is_field ? !!(picture_structure & PICT_BOTTOM_FIELD) : 0,
- .used_for_long_term_reference = pic->reference && pic->long_ref,
- /*
- * flags.is_non_existing is used to indicate whether the picture is marked as
- * “non-existing” as defined in section 8.2.5.2 of the ITU-T H.264 Specification;
- * 8.2.5.2 Decoding process for gaps in frame_num
- * corresponds to the code in h264_slice.c:h264_field_start,
- * which sets the invalid_gap flag when decoding.
- */
- .is_non_existing = pic->invalid_gap,
- },
- };
-
- *vkh264_ref = (VkVideoDecodeH264DpbSlotInfoKHR) {
- .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_DPB_SLOT_INFO_KHR,
- .pStdReferenceInfo = h264_ref,
- };
-
- *ref = (VkVideoPictureResourceInfoKHR) {
- .sType = VK_STRUCTURE_TYPE_VIDEO_PICTURE_RESOURCE_INFO_KHR,
- .codedOffset = (VkOffset2D){ 0, 0 },
- .codedExtent = (VkExtent2D){ pic->f->width, pic->f->height },
- .baseArrayLayer = ctx->common.layered_dpb ? dpb_slot_index : 0,
- .imageViewBinding = vkpic->view.ref[0],
- };
-
- *ref_slot = (VkVideoReferenceSlotInfoKHR) {
- .sType = VK_STRUCTURE_TYPE_VIDEO_REFERENCE_SLOT_INFO_KHR,
- .pNext = vkh264_ref,
- .slotIndex = dpb_slot_index,
- .pPictureResource = ref,
- };
-
- if (ref_src)
- *ref_src = pic;
-
- return 0;
-}
-
static StdVideoH264LevelIdc convert_to_vk_level_idc(int level_idc)
{
switch (level_idc) {
@@ -369,18 +278,124 @@ static int vk_h264_create_params(AVCodecContext *avctx, AVBufferRef **buf)
return 0;
}
+static int vk_h264_fill_pict(AVCodecContext *avctx, H264Picture **ref_src,
+ VkVideoReferenceSlotInfoKHR *ref_slot, /* Main structure */
+ VkVideoPictureResourceInfoKHR *ref, /* Goes in ^ */
+ VkVideoDecodeH264DpbSlotInfoKHR *vkh264_ref, /* Goes in ^ */
+ StdVideoDecodeH264ReferenceInfo *h264_ref, /* Goes in ^ */
+ H264Picture *pic, int is_current,
+ int is_field, int picture_structure,
+ int dpb_slot_index)
+{
+ FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
+ FFVulkanDecodeShared *ctx = dec->shared_ctx;
+ FFVulkanDecodePicture *vkpic = pic->hwaccel_picture_private;
+
+ int err = ff_vk_decode_prepare_frame(dec, pic->f, vkpic, is_current,
+ dec->dedicated_dpb);
+ if (err < 0)
+ return err;
+
+ *h264_ref = (StdVideoDecodeH264ReferenceInfo) {
+ .FrameNum = pic->long_ref ? pic->pic_id : pic->frame_num,
+ .PicOrderCnt = { pic->field_poc[0], pic->field_poc[1] },
+ .flags = (StdVideoDecodeH264ReferenceInfoFlags) {
+ .top_field_flag = is_field ? !!(picture_structure & PICT_TOP_FIELD) : 0,
+ .bottom_field_flag = is_field ? !!(picture_structure & PICT_BOTTOM_FIELD) : 0,
+ .used_for_long_term_reference = pic->reference && pic->long_ref,
+ /*
+ * flags.is_non_existing is used to indicate whether the picture is marked as
+ * “non-existing” as defined in section 8.2.5.2 of the ITU-T H.264 Specification;
+ * 8.2.5.2 Decoding process for gaps in frame_num
+ * corresponds to the code in h264_slice.c:h264_field_start,
+ * which sets the invalid_gap flag when decoding.
+ */
+ .is_non_existing = pic->invalid_gap,
+ },
+ };
+
+ *vkh264_ref = (VkVideoDecodeH264DpbSlotInfoKHR) {
+ .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_DPB_SLOT_INFO_KHR,
+ .pStdReferenceInfo = h264_ref,
+ };
+
+ *ref = (VkVideoPictureResourceInfoKHR) {
+ .sType = VK_STRUCTURE_TYPE_VIDEO_PICTURE_RESOURCE_INFO_KHR,
+ .codedOffset = (VkOffset2D){ 0, 0 },
+ .codedExtent = (VkExtent2D){ pic->f->width, pic->f->height },
+ .baseArrayLayer = ctx->common.layered_dpb ? dpb_slot_index : 0,
+ .imageViewBinding = vkpic->view.ref[0],
+ };
+
+ *ref_slot = (VkVideoReferenceSlotInfoKHR) {
+ .sType = VK_STRUCTURE_TYPE_VIDEO_REFERENCE_SLOT_INFO_KHR,
+ .pNext = vkh264_ref,
+ .slotIndex = dpb_slot_index,
+ .pPictureResource = ref,
+ };
+
+ if (ref_src)
+ *ref_src = pic;
+
+ return 0;
+}
+
static int vk_h264_start_frame(AVCodecContext *avctx,
av_unused const AVBufferRef *buffer_ref,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
+{
+ const H264Context *h = avctx->priv_data;
+ H264Picture *pic = h->cur_pic_ptr;
+ FFVulkanDecodePicture *vp = pic->hwaccel_picture_private;
+
+ return ff_vk_decode_start_frame(avctx, vp, buffer_ref, 0);
+}
+
+typedef struct H264VulkanDecodeParams {
+ /* Current picture */
+ StdVideoDecodeH264ReferenceInfo h264_ref;
+ VkVideoDecodeH264DpbSlotInfoKHR vkh264_ref;
+
+ /* Picture refs */
+ H264Picture *ref_src [H264_MAX_PICTURE_COUNT];
+ StdVideoDecodeH264ReferenceInfo h264_refs [H264_MAX_PICTURE_COUNT];
+ VkVideoDecodeH264DpbSlotInfoKHR vkh264_refs[H264_MAX_PICTURE_COUNT];
+
+ /* Current picture (contd.) */
+ StdVideoDecodeH264PictureInfo h264pic;
+ VkVideoDecodeH264PictureInfoKHR h264_pic_info;
+
+ /* Current picture */
+ VkVideoPictureResourceInfoKHR ref;
+ VkVideoReferenceSlotInfoKHR ref_slot;
+
+ /* Picture refs. H264 has the maximum number of refs (36) of any supported codec. */
+ VkVideoPictureResourceInfoKHR refs [36];
+ VkVideoReferenceSlotInfoKHR ref_slots[36];
+
+ /* Maintenance 2 */
+#ifdef VK_KHR_video_maintenance2
+ StdVideoH264ScalingLists vksps_scaling;
+ StdVideoH264HrdParameters vksps_vui_header;
+ StdVideoH264SequenceParameterSetVui vksps_vui;
+ StdVideoH264SequenceParameterSet vksps;
+ StdVideoH264ScalingLists vkpps_scaling;
+ StdVideoH264PictureParameterSet vkpps;
+ VkVideoDecodeH264InlineSessionParametersInfoKHR h264_params;
+#endif
+
+ /* Main decoding struct */
+ VkVideoDecodeInfoKHR decode_info;
+} H264VulkanDecodeParams;
+
+static int vk_h264_fill_params(AVCodecContext *avctx, FFVulkanDecodePicture *vp,
+ H264VulkanDecodeParams *hp)
{
int err;
int dpb_slot_index = 0;
H264Context *h = avctx->priv_data;
-
H264Picture *pic = h->cur_pic_ptr;
- H264VulkanDecodePicture *hp = pic->hwaccel_picture_private;
- FFVulkanDecodePicture *vp = &hp->vp;
/* Fill in main slot */
dpb_slot_index = 0;
@@ -445,13 +460,13 @@ static int vk_h264_start_frame(AVCodecContext *avctx,
hp->h264pic = (StdVideoDecodeH264PictureInfo) {
.seq_parameter_set_id = pic->pps->sps_id,
.pic_parameter_set_id = pic->pps->pps_id,
- .frame_num = 0, /* Set later */
- .idr_pic_id = 0, /* Set later */
+ .frame_num = h->slice_ctx[0].frame_num,
+ .idr_pic_id = h->slice_ctx[0].idr_pic_id,
.PicOrderCnt[0] = pic->field_poc[0],
.PicOrderCnt[1] = pic->field_poc[1],
.flags = (StdVideoDecodeH264PictureInfoFlags) {
+ .is_intra = vp->intra_pic_flag,
.field_pic_flag = FIELD_PICTURE(h),
- .is_intra = 1, /* Set later */
.IdrPicFlag = h->picture_idr,
.bottom_field_flag = h->picture_structure != PICT_FRAME &&
h->picture_structure & PICT_BOTTOM_FIELD,
@@ -463,6 +478,8 @@ static int vk_h264_start_frame(AVCodecContext *avctx,
hp->h264_pic_info = (VkVideoDecodeH264PictureInfoKHR) {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_PICTURE_INFO_KHR,
.pStdPictureInfo = &hp->h264pic,
+ .pSliceOffsets = vp->slice_offsets,
+ .sliceCount = vp->nb_slices,
};
hp->decode_info = (VkVideoDecodeInfoKHR) {
@@ -484,100 +501,89 @@ static int vk_h264_start_frame(AVCodecContext *avctx,
return 0;
}
-static int vk_h264_decode_slice(AVCodecContext *avctx,
- const uint8_t *data,
- uint32_t size)
-{
- const H264Context *h = avctx->priv_data;
- const H264SliceContext *sl = &h->slice_ctx[0];
- H264VulkanDecodePicture *hp = h->cur_pic_ptr->hwaccel_picture_private;
- FFVulkanDecodePicture *vp = &hp->vp;
-
- int err = ff_vk_decode_add_slice(avctx, vp, data, size, 1);
- if (err < 0)
- return err;
-
- hp->h264pic.frame_num = sl->frame_num;
- hp->h264pic.idr_pic_id = sl->idr_pic_id;
-
- /* Frame is only intra of all slices are marked as intra */
- if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
- hp->h264pic.flags.is_intra = 0;
-
- return 0;
-}
-
static int vk_h264_end_frame(AVCodecContext *avctx)
{
+ int err;
const H264Context *h = avctx->priv_data;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
H264Picture *pic = h->cur_pic_ptr;
- H264VulkanDecodePicture *hp = pic->hwaccel_picture_private;
- FFVulkanDecodePicture *vp = &hp->vp;
+ FFVulkanDecodePicture *vp = pic->hwaccel_picture_private;
FFVulkanDecodePicture *rvp[H264_MAX_PICTURE_COUNT] = { 0 };
AVFrame *rav[H264_MAX_PICTURE_COUNT] = { 0 };
-#ifdef VK_KHR_video_maintenance2
- StdVideoH264ScalingLists vksps_scaling;
- StdVideoH264HrdParameters vksps_vui_header;
- StdVideoH264SequenceParameterSetVui vksps_vui;
- StdVideoH264SequenceParameterSet vksps;
- StdVideoH264ScalingLists vkpps_scaling;
- StdVideoH264PictureParameterSet vkpps;
- VkVideoDecodeH264InlineSessionParametersInfoKHR h264_params;
+ H264VulkanDecodeParams hp = { 0 };
+
+ if (!vp->nb_slices)
+ return 0;
+
+ err = vk_h264_fill_params(avctx, vp, &hp);
+ if (err < 0)
+ return err;
+#ifdef VK_KHR_video_maintenance2
if (ctx->s.extensions & FF_VK_EXT_VIDEO_MAINTENANCE_2) {
- set_sps(h->ps.sps, &vksps_scaling,
- &vksps_vui_header, &vksps_vui, &vksps);
- set_pps(h->ps.pps, h->ps.sps, &vkpps_scaling, &vkpps);
- h264_params = (VkVideoDecodeH264InlineSessionParametersInfoKHR) {
+ set_sps(h->ps.sps, &hp.vksps_scaling,
+ &hp.vksps_vui_header, &hp.vksps_vui, &hp.vksps);
+ set_pps(h->ps.pps, h->ps.sps, &hp.vkpps_scaling, &hp.vkpps);
+ hp.h264_params = (VkVideoDecodeH264InlineSessionParametersInfoKHR) {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_INLINE_SESSION_PARAMETERS_INFO_KHR,
- .pStdSPS = &vksps,
- .pStdPPS = &vkpps,
+ .pStdSPS = &hp.vksps,
+ .pStdPPS = &hp.vkpps,
};
- hp->h264_pic_info.pNext = &h264_params;
- }
+ hp.h264_pic_info.pNext = &hp.h264_params;
+ } else
#endif
- hp->h264_pic_info.pSliceOffsets = vp->slice_offsets;
- hp->h264_pic_info.sliceCount = vp->nb_slices;
- if (!hp->h264_pic_info.sliceCount)
- return 0;
-
- if (!dec->session_params &&
- !(ctx->s.extensions & FF_VK_EXT_VIDEO_MAINTENANCE_2)) {
+ if (!dec->session_params) {
int err = vk_h264_create_params(avctx, &dec->session_params);
if (err < 0)
return err;
- hp->h264pic.seq_parameter_set_id = pic->pps->sps_id;
- hp->h264pic.pic_parameter_set_id = pic->pps->pps_id;
+ hp.h264pic.seq_parameter_set_id = pic->pps->sps_id;
+ hp.h264pic.pic_parameter_set_id = pic->pps->pps_id;
}
- for (int i = 0; i < hp->decode_info.referenceSlotCount; i++) {
- H264Picture *rp = hp->ref_src[i];
- H264VulkanDecodePicture *rhp = rp->hwaccel_picture_private;
-
- rvp[i] = &rhp->vp;
- rav[i] = hp->ref_src[i]->f;
+ for (int i = 0; i < hp.decode_info.referenceSlotCount; i++) {
+ H264Picture *rp = hp.ref_src[i];
+ rvp[i] = rp->hwaccel_picture_private;
+ rav[i] = hp.ref_src[i]->f;
}
av_log(avctx, AV_LOG_VERBOSE, "Decoding frame, %"SIZE_SPECIFIER" bytes, %i slices\n",
- vp->slices_size, hp->h264_pic_info.sliceCount);
+ vp->slices_size, hp.h264_pic_info.sliceCount);
- return ff_vk_decode_frame(avctx, &hp->decode_info,
+ return ff_vk_decode_frame(avctx, &hp.decode_info,
pic->f, vp, rav, rvp);
}
+static int vk_h264_decode_slice(AVCodecContext *avctx,
+ const uint8_t *data,
+ uint32_t size)
+{
+ const H264Context *h = avctx->priv_data;
+ const H264SliceContext *sl = &h->slice_ctx[0];
+ FFVulkanDecodePicture *vp = h->cur_pic_ptr->hwaccel_picture_private;
+
+ int err = ff_vk_decode_add_slice(avctx, vp, data, size, 1);
+ if (err < 0)
+ return err;
+
+ /* Frame is only intra of all slices are marked as intra */
+ if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
+ vp->intra_pic_flag = 0;
+
+ return 0;
+}
+
static void vk_h264_free_frame_priv(AVRefStructOpaque _hwctx, void *data)
{
AVHWDeviceContext *hwctx = _hwctx.nc;
- H264VulkanDecodePicture *hp = data;
+ FFVulkanDecodePicture *vp = data;
/* Free frame resources, this also destroys the session parameters. */
- ff_vk_decode_free_frame(hwctx, &hp->vp);
+ ff_vk_decode_free_frame(hwctx, vp);
}
const FFHWAccel ff_h264_vulkan_hwaccel = {
@@ -589,7 +595,7 @@ const FFHWAccel ff_h264_vulkan_hwaccel = {
.decode_slice = &vk_h264_decode_slice,
.end_frame = &vk_h264_end_frame,
.free_frame_priv = &vk_h264_free_frame_priv,
- .frame_priv_data_size = sizeof(H264VulkanDecodePicture),
+ .frame_priv_data_size = sizeof(FFVulkanDecodePicture),
.init = &ff_vk_decode_init,
.update_thread_context = &ff_vk_update_thread_context,
.decode_params = &ff_vk_params_invalidate,
--
2.49.0
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next prev parent reply other threads:[~2025-03-31 2:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-31 2:37 [FFmpeg-devel] [PATCH 1/6] vulkan_decode: generalize handling of slice offsets/nb Lynne
2025-03-31 2:37 ` [FFmpeg-devel] [PATCH 2/6] vulkan_decode: only create sequence params in end_frame Lynne
2025-03-31 2:37 ` [FFmpeg-devel] [PATCH 3/6] vulkan_decode: move temporary Vulkan structs into each codec Lynne
2025-03-31 2:37 ` [FFmpeg-devel] [PATCH 4/6] vulkan_decode: add a generic start_frame function Lynne
2025-03-31 2:37 ` Lynne [this message]
2025-03-31 2:37 ` [FFmpeg-devel] [PATCH 6/6] vulkan_hevc: make all temporary structs temporary Lynne
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