[FFmpeg-devel,2/3] lavu/hwcontext_qsv: Add support for pix_fmt RGB32.

Submitted by Zhong Li on March 22, 2018, 3:05 p.m.

Details

Message ID 1521731134-24618-2-git-send-email-zhong.li@intel.com
State New
Headers show

Commit Message

Zhong Li March 22, 2018, 3:05 p.m.
RGB32 format may be used as overlay with alpha blending.
So add RGB32 format support.

Signed-off-by: ChaoX A Liu <chaox.a.liu@intel.com>
Signed-off-by: Zhong Li <zhong.li@intel.com>
---
 libavutil/hwcontext_qsv.c | 43 +++++++++++++++++++++++++++++++++----------
 1 file changed, 33 insertions(+), 10 deletions(-)

Comments

Carl Eugen Hoyos March 22, 2018, 4:54 p.m.
2018-03-22 16:05 GMT+01:00, Zhong Li <zhong.li@intel.com>:
> RGB32 format may be used as overlay with alpha blending.
> So add RGB32 format support.
>
> Signed-off-by: ChaoX A Liu <chaox.a.liu@intel.com>
> Signed-off-by: Zhong Li <zhong.li@intel.com>
> ---
>  libavutil/hwcontext_qsv.c | 43 +++++++++++++++++++++++++++++++++----------
>  1 file changed, 33 insertions(+), 10 deletions(-)
>
> diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
> index 0fefec3..dcaf072 100644
> --- a/libavutil/hwcontext_qsv.c
> +++ b/libavutil/hwcontext_qsv.c
> @@ -90,6 +90,7 @@ static const struct {
>      uint32_t           fourcc;
>  } supported_pixel_formats[] = {
>      { AV_PIX_FMT_NV12, MFX_FOURCC_NV12 },
> +    { AV_PIX_FMT_RGB32,MFX_FOURCC_RGB4 },

Imo, AV_PIX_FMT_BGRA would be more readable.

And please kindly confirm that you did test this, the
description on https://software.intel.com/en-us/node/628506
is so misleading that it cannot easily be used a source.

[...]

> +        case AV_PIX_FMT_RGB32:
> +            surface->Data.B = frame->data[0];
> +            surface->Data.G = frame->data[0] + 1;
> +            surface->Data.R = frame->data[0] + 2;
> +            surface->Data.A = frame->data[0] + 3;

Does this mean every FFmpeg rgb pix_fmt could be
supported with the appropriate matrix?

Wouldn't this be very little code for a great performance
gain given the "wrong" input?

Thank you, Carl Eugen

Patch hide | download patch | download mbox

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 0fefec3..dcaf072 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -90,6 +90,7 @@  static const struct {
     uint32_t           fourcc;
 } supported_pixel_formats[] = {
     { AV_PIX_FMT_NV12, MFX_FOURCC_NV12 },
+    { AV_PIX_FMT_RGB32,MFX_FOURCC_RGB4 },
     { AV_PIX_FMT_P010, MFX_FOURCC_P010 },
     { AV_PIX_FMT_PAL8, MFX_FOURCC_P8   },
 };
@@ -731,6 +732,36 @@  static int qsv_transfer_data_child(AVHWFramesContext *ctx, AVFrame *dst,
     return ret;
 }
 
+static int map_frame_to_surface(const AVFrame *frame, mfxFrameSurface1 *surface)
+{
+    switch (frame->format) {
+        case AV_PIX_FMT_NV12:
+            surface->Data.Y  = frame->data[0];
+            surface->Data.UV = frame->data[1];
+            break;
+
+        case AV_PIX_FMT_YUV420P:
+            surface->Data.Y = frame->data[0];
+            surface->Data.U = frame->data[1];
+            surface->Data.V = frame->data[2];
+            break;
+
+        case AV_PIX_FMT_RGB32:
+            surface->Data.B = frame->data[0];
+            surface->Data.G = frame->data[0] + 1;
+            surface->Data.R = frame->data[0] + 2;
+            surface->Data.A = frame->data[0] + 3;
+            break;
+
+        default:
+            return MFX_ERR_UNSUPPORTED;
+    }
+    surface->Data.Pitch     = frame->linesize[0];
+    surface->Data.TimeStamp = frame->pts;
+
+    return 0;
+}
+
 static int qsv_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
                                   const AVFrame *src)
 {
@@ -750,11 +781,7 @@  static int qsv_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
     }
 
     out.Info = in->Info;
-    out.Data.PitchLow = dst->linesize[0];
-    out.Data.Y        = dst->data[0];
-    out.Data.U        = dst->data[1];
-    out.Data.V        = dst->data[2];
-    out.Data.A        = dst->data[3];
+    map_frame_to_surface(dst, &out);
 
     do {
         err = MFXVideoVPP_RunFrameVPPAsync(s->session_download, in, &out, NULL, &sync);
@@ -797,11 +824,7 @@  static int qsv_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
     }
 
     in.Info = out->Info;
-    in.Data.PitchLow = src->linesize[0];
-    in.Data.Y        = src->data[0];
-    in.Data.U        = src->data[1];
-    in.Data.V        = src->data[2];
-    in.Data.A        = src->data[3];
+    map_frame_to_surface(src, &in);
 
     do {
         err = MFXVideoVPP_RunFrameVPPAsync(s->session_upload, &in, out, NULL, &sync);