diff --git a/src/gallium/frontends/va/picture.c b/src/gallium/frontends/va/picture.c
index 31d5bc1c26f..11ac77ccb3f 100644
--- a/src/gallium/frontends/va/picture.c
+++ b/src/gallium/frontends/va/picture.c
@@ -261,7 +261,7 @@ handleIQMatrixBuffer(vlVaContext *context, vlVaBuffer *buf)
 }
 
 static void
-handleSliceParameterBuffer(vlVaContext *context, vlVaBuffer *buf, unsigned num)
+handleSliceParameterBuffer(vlVaContext *context, vlVaBuffer *buf, unsigned num_slice_buffers, unsigned num_slices)
 {
    switch (u_reduce_video_profile(context->templat.profile)) {
    case PIPE_VIDEO_FORMAT_MPEG12:
@@ -293,7 +293,7 @@ handleSliceParameterBuffer(vlVaContext *context, vlVaBuffer *buf, unsigned num)
       break;
 
    case PIPE_VIDEO_FORMAT_AV1:
-      vlVaHandleSliceParameterBufferAV1(context, buf, num);
+      vlVaHandleSliceParameterBufferAV1(context, buf, num_slice_buffers, num_slices);
       break;
 
    default:
@@ -695,6 +695,7 @@ vlVaRenderPicture(VADriverContextP ctx, VAContextID context_id, VABufferID *buff
 
    unsigned i;
    unsigned slice_param_idx = 0;
+   unsigned slice_idx = 0;
 
    if (!ctx)
       return VA_STATUS_ERROR_INVALID_CONTEXT;
@@ -735,8 +736,20 @@ vlVaRenderPicture(VADriverContextP ctx, VAContextID context_id, VABufferID *buff
          break;
 
       case VASliceParameterBufferType:
-         handleSliceParameterBuffer(context, buf, slice_param_idx++);
-         break;
+      {
+         /* Some apps like gstreamer send all the slices at once
+            and some others send individual VASliceParameterBufferType buffers
+
+            slice_param_idx is the zero based count of VASliceParameterBufferType
+               (including multiple buffers with num_elements > 1) received
+               before this call to handleSliceParameterBuffer
+
+            slice_idx is the zero based number of total slices received
+               before this call to handleSliceParameterBuffer
+         */
+         handleSliceParameterBuffer(context, buf, slice_param_idx++, slice_idx);
+         slice_idx += buf->num_elements;
+      } break;
 
       case VASliceDataBufferType:
          vaStatus = handleVASliceDataBufferType(context, buf);
diff --git a/src/gallium/frontends/va/picture_av1.c b/src/gallium/frontends/va/picture_av1.c
index c373a4f234a..970aa7c8d27 100644
--- a/src/gallium/frontends/va/picture_av1.c
+++ b/src/gallium/frontends/va/picture_av1.c
@@ -370,13 +370,20 @@ void vlVaHandlePictureParameterBufferAV1(vlVaDriver *drv, vlVaContext *context,
    }
 }
 
-void vlVaHandleSliceParameterBufferAV1(vlVaContext *context, vlVaBuffer *buf, unsigned int num)
+void vlVaHandleSliceParameterBufferAV1(vlVaContext *context, vlVaBuffer *buf, unsigned num_slice_buffers, unsigned num_slices)
 {
-   VASliceParameterBufferAV1 *av1 = buf->data;
+   for (uint32_t buffer_idx = 0; buffer_idx < buf->num_elements; buffer_idx++) {
+      uint32_t slice_index =
+               /* slices obtained so far from vaRenderPicture in previous calls*/
+               num_slices +
+               /* current slice index processing this VASliceParameterBufferAV1 */
+               buffer_idx;
 
-   context->desc.av1.slice_parameter.slice_data_size[num] = av1->slice_data_size;
-   context->desc.av1.slice_parameter.slice_data_offset[num] = av1->slice_data_offset;
-   context->desc.av1.slice_parameter.slice_data_row[num] = av1->tile_row;
-   context->desc.av1.slice_parameter.slice_data_col[num] = av1->tile_column;
-   context->desc.av1.slice_parameter.slice_data_anchor_frame_idx[num] = av1->anchor_frame_idx;
+      VASliceParameterBufferAV1 *av1 = &(((VASliceParameterBufferAV1*)buf->data)[buffer_idx]);
+      context->desc.av1.slice_parameter.slice_data_size[slice_index] = av1->slice_data_size;
+      context->desc.av1.slice_parameter.slice_data_offset[slice_index] = av1->slice_data_offset;
+      context->desc.av1.slice_parameter.slice_data_row[slice_index] = av1->tile_row;
+      context->desc.av1.slice_parameter.slice_data_col[slice_index] = av1->tile_column;
+      context->desc.av1.slice_parameter.slice_data_anchor_frame_idx[slice_index] = av1->anchor_frame_idx;
+   }
 }
diff --git a/src/gallium/frontends/va/va_private.h b/src/gallium/frontends/va/va_private.h
index 9a4f5e7c0b0..6f3f8306c6c 100644
--- a/src/gallium/frontends/va/va_private.h
+++ b/src/gallium/frontends/va/va_private.h
@@ -490,7 +490,7 @@ void vlVaHandlePictureParameterBufferVP9(vlVaDriver *drv, vlVaContext *context,
 void vlVaHandleSliceParameterBufferVP9(vlVaContext *context, vlVaBuffer *buf);
 void vlVaDecoderVP9BitstreamHeader(vlVaContext *context, vlVaBuffer *buf);
 void vlVaHandlePictureParameterBufferAV1(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf);
-void vlVaHandleSliceParameterBufferAV1(vlVaContext *context, vlVaBuffer *buf, unsigned int num);
+void vlVaHandleSliceParameterBufferAV1(vlVaContext *context, vlVaBuffer *buf, unsigned num_slice_buffers, unsigned num_slices);
 void getEncParamPresetH264(vlVaContext *context);
 void getEncParamPresetH265(vlVaContext *context);
 void vlVaHandleVAEncMiscParameterTypeQualityLevel(struct pipe_enc_quality_modes *p, vlVaQualityBits *in);