[Mesa-dev] [PATCH 4/4] st/omx/dec: make decoder video buffer progressive

[Leo Liu]

The idea of encode tunneling is to use video buffer directly for encoder,
but currently the encoder doesn’t support interlaced surface, the OMX
decoder set progressive surface before on that purpose.

Since now we are polling the driver for interlacing information for
decoder, we got the interlaced as preferred as other APIs(VDPAU, VA-API),
thus breaking the transcode with tunneling.

The solution is when with tunnel detected, re-allocate progressive target
buffers, and then converting the interlaced decoder results to there.

This has been tested with transcode results bit to bit matching as before
with surface from progressive to progressive.

Signed-off-by: Leo Liu <leo.liu at amd.com>
---
 src/gallium/state_trackers/omx/vid_dec.c | 65 +++++++++++++++++++++++++++++++-
 src/gallium/state_trackers/omx/vid_dec.h |  6 ++-
 2 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/src/gallium/state_trackers/omx/vid_dec.c b/src/gallium/state_trackers/omx/vid_dec.c
index a989c10..7842966 100644
--- a/src/gallium/state_trackers/omx/vid_dec.c
+++ b/src/gallium/state_trackers/omx/vid_dec.c
@@ -167,6 +167,19 @@ static OMX_ERRORTYPE vid_dec_Constructor(OMX_COMPONENTTYPE *comp, OMX_STRING nam
    if (!priv->pipe)
       return OMX_ErrorInsufficientResources;
 
+   if (!vl_compositor_init(&priv->compositor, priv->pipe)) {
+      priv->pipe->destroy(priv->pipe);
+      priv->pipe = NULL;
+      return OMX_ErrorInsufficientResources;
+   }
+
+   if (!vl_compositor_init_state(&priv->cstate, priv->pipe)) {
+      vl_compositor_cleanup(&priv->compositor);
+      priv->pipe->destroy(priv->pipe);
+      priv->pipe = NULL;
+      return OMX_ErrorInsufficientResources;
+   }
+
    priv->sPortTypesParam[OMX_PortDomainVideo].nStartPortNumber = 0;
    priv->sPortTypesParam[OMX_PortDomainVideo].nPorts = 2;
    priv->ports = CALLOC(2, sizeof(omx_base_PortType *));
@@ -218,8 +231,11 @@ static OMX_ERRORTYPE vid_dec_Destructor(OMX_COMPONENTTYPE *comp)
       priv->ports=NULL;
    }
 
-   if (priv->pipe)
+   if (priv->pipe) {
+      vl_compositor_cleanup_state(&priv->cstate);
+      vl_compositor_cleanup(&priv->compositor);
       priv->pipe->destroy(priv->pipe);
+   }
 
    if (priv->screen)
       omx_put_screen();
@@ -547,6 +563,25 @@ static void vid_dec_FillOutput(vid_dec_PrivateType *priv, struct pipe_video_buff
    }
 }
 
+static void vid_dec_deint(vid_dec_PrivateType *priv, struct pipe_video_buffer *src_buf,
+                          struct pipe_video_buffer *dst_buf)
+{
+   struct vl_compositor *compositor = &priv->compositor;
+   struct vl_compositor_state *s = &priv->cstate;
+   struct pipe_surface **dst_surface;
+
+   dst_surface = dst_buf->get_surfaces(dst_buf);
+   vl_compositor_clear_layers(s);
+
+   vl_compositor_set_yuv_layer(s, compositor, 0, src_buf, NULL, NULL, true);
+   vl_compositor_set_layer_dst_area(s, 0, NULL);
+   vl_compositor_render(s, compositor, dst_surface[0], NULL, false);
+
+   vl_compositor_set_yuv_layer(s, compositor, 0, src_buf, NULL, NULL, false);
+   vl_compositor_set_layer_dst_area(s, 0, NULL);
+   vl_compositor_render(s, compositor, dst_surface[1], NULL, false);
+}
+
 static void vid_dec_FrameDecoded(OMX_COMPONENTTYPE *comp, OMX_BUFFERHEADERTYPE* input,
                                  OMX_BUFFERHEADERTYPE* output)
 {
@@ -562,7 +597,33 @@ static void vid_dec_FrameDecoded(OMX_COMPONENTTYPE *comp, OMX_BUFFERHEADERTYPE*
 
    if (input->pInputPortPrivate) {
       if (output->pInputPortPrivate) {
-         struct pipe_video_buffer *tmp = output->pOutputPortPrivate;
+         struct pipe_video_buffer *tmp, *vbuf, *new_vbuf;
+
+         tmp = output->pOutputPortPrivate;
+         vbuf = input->pInputPortPrivate;
+         if (vbuf->interlaced) {
+            /* re-allocate the progressive buffer */
+            omx_base_video_PortType *port;
+            struct pipe_video_buffer templat = {};
+
+            port = (omx_base_video_PortType *)
+                    priv->ports[OMX_BASE_FILTER_INPUTPORT_INDEX];
+            memset(&templat, 0, sizeof(templat));
+            templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
+            templat.width = port->sPortParam.format.video.nFrameWidth;
+            templat.height = port->sPortParam.format.video.nFrameHeight;
+            templat.buffer_format = PIPE_FORMAT_NV12;
+            templat.interlaced = false;
+            new_vbuf = priv->pipe->create_video_buffer(priv->pipe, &templat);
+
+            /* convert the interlaced to the progressive */
+            vid_dec_deint(priv, input->pInputPortPrivate, new_vbuf);
+            priv->pipe->flush(priv->pipe, NULL, 0);
+
+            /* set the progrssive buffer for next round */
+            vbuf->destroy(vbuf);
+            input->pInputPortPrivate = new_vbuf;
+         }
          output->pOutputPortPrivate = input->pInputPortPrivate;
          input->pInputPortPrivate = tmp;
       } else {
diff --git a/src/gallium/state_trackers/omx/vid_dec.h b/src/gallium/state_trackers/omx/vid_dec.h
index 649d745..d268925 100644
--- a/src/gallium/state_trackers/omx/vid_dec.h
+++ b/src/gallium/state_trackers/omx/vid_dec.h
@@ -51,6 +51,8 @@
 #include "os/os_thread.h"
 #include "util/list.h"
 
+#include "vl/vl_compositor.h"
+
 #define OMX_VID_DEC_BASE_NAME "OMX.mesa.video_decoder"
 
 #define OMX_VID_DEC_MPEG2_NAME "OMX.mesa.video_decoder.mpeg2"
@@ -108,7 +110,9 @@ DERIVEDCLASS(vid_dec_PrivateType, omx_base_filter_PrivateType)
    bool frame_finished; \
    bool frame_started; \
    unsigned bytes_left; \
-   const void *slice;
+   const void *slice; \
+   struct vl_compositor compositor; \
+   struct vl_compositor_state cstate;
 ENDCLASS(vid_dec_PrivateType)
 
 OMX_ERRORTYPE vid_dec_LoaderComponent(stLoaderComponentType *comp);
-- 
1.9.1