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hwcontext_dxva2: frame mapping support 

Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>
This commit is contained in:
Anton Khirnov 2016-10-05 13:39:44 +02:00
parent fabfbfe571
commit 9109737654
1 changed files with 68 additions and 21 deletions
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89
libavutil/hwcontext_dxva2.c
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@ -241,21 +241,22 @@ static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
return 0;
}
static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
{
IDirect3DSurface9 *surface;
IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
IDirect3DSurface9_UnlockRect(surface);
}
static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
int flags)
{
IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
D3DSURFACE_DESC surfaceDesc;
D3DLOCKED_RECT LockedRect;
HRESULT hr;
int i, err, nb_planes;
uint8_t *surf_data[4] = { NULL };
int surf_linesize[4] = { 0 };
int i;
int download = !!src->hw_frames_ctx;
surface = (IDirect3DSurface9*)(download ? src->data[3] : dst->data[3]);
nb_planes = av_pix_fmt_count_planes(dst->format);
hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
if (FAILED(hr)) {
@ -264,32 +265,77 @@ static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
}
hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
download ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
flags & AV_HWFRAME_MAP_READ ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
if (FAILED(hr)) {
av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
return AVERROR_UNKNOWN;
}
for (i = 0; download ? dst->data[i] : src->data[i]; i++)
surf_linesize[i] = LockedRect.Pitch;
err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
dxva2_unmap_frame, NULL);
if (err < 0)
goto fail;
av_image_fill_pointers(surf_data, ctx->sw_format, surfaceDesc.Height,
(uint8_t*)LockedRect.pBits, surf_linesize);
for (i = 0; i < nb_planes; i++)
dst->linesize[i] = LockedRect.Pitch;
av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
(uint8_t*)LockedRect.pBits, dst->linesize);
return 0;
fail:
IDirect3DSurface9_UnlockRect(surface);
return err;
}
static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
{
int download = !!src->hw_frames_ctx;
AVFrame *map;
int ret, i;
map = av_frame_alloc();
if (!map)
return AVERROR(ENOMEM);
map->format = dst->format;
ret = dxva2_map_frame(ctx, map, download ? src : dst,
download ? AV_HWFRAME_MAP_READ : AV_HWFRAME_MAP_WRITE);
if (ret < 0)
goto fail;
if (download) {
ptrdiff_t src_linesize1[4], dst_linesize1[4];
ptrdiff_t src_linesize[4], dst_linesize[4];
for (i = 0; i < 4; i++) {
dst_linesize1[i] = dst->linesize[i];
src_linesize1[i] = surf_linesize[i];
dst_linesize[i] = dst->linesize[i];
src_linesize[i] = map->linesize[i];
}
av_image_copy_uc_from(dst->data, dst_linesize1, surf_data, src_linesize1,
av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
ctx->sw_format, src->width, src->height);
} else {
av_image_copy(surf_data, surf_linesize, src->data, src->linesize,
av_image_copy(map->data, map->linesize, src->data, src->linesize,
ctx->sw_format, src->width, src->height);
}
IDirect3DSurface9_UnlockRect(surface);
fail:
av_frame_free(&map);
return ret;
}
static int dxva2_map_from(AVHWFramesContext *ctx,
AVFrame *dst, const AVFrame *src, int flags)
{
int err;
err = dxva2_map_frame(ctx, dst, src, flags);
if (err < 0)
return err;
err = av_frame_copy_props(dst, src);
if (err < 0)
return err;
return 0;
}
@ -428,6 +474,7 @@ const HWContextType ff_hwcontext_type_dxva2 = {
.transfer_get_formats = dxva2_transfer_get_formats,
.transfer_data_to = dxva2_transfer_data,
.transfer_data_from = dxva2_transfer_data,
.map_from = dxva2_map_from,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
};