libva-utils: fix build with gcc 4.8

Fixes:
 - http://autobuild.buildroot.org/results/64d9b79de5d31eb5a0c219081479bebb1f2527ed

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Acked-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libva-utils/0002-KJSL-fix-up-C99-issue.patch

@@ -0,0 +1,120 @@
+From 6307b68156db2040a1be5b324efe4bad4461d52e Mon Sep 17 00:00:00 2001
+From: Kev <klambert@kevs-encoder.switch.internal>
+Date: Fri, 26 Oct 2018 10:59:49 +1100
+Subject: [PATCH] KJSL fix up C99 issue
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Retrieved from:
+https://github.com/intel/libva-utils/commit/6307b68156db2040a1be5b324efe4bad4461d52e]
+---
+ encode/vp8enc.c | 24 +++++++++++++++---------
+ 1 file changed, 15 insertions(+), 9 deletions(-)
+
+diff --git a/encode/vp8enc.c b/encode/vp8enc.c
+index 9be2870..fce0a46 100644
+--- a/encode/vp8enc.c
++++ b/encode/vp8enc.c
+@@ -400,18 +400,19 @@ vp8enc_upload_thread_function(void *data)
+ void vp8enc_init_QMatrix(VAQMatrixBufferVP8 *qMatrix)
+ {
+   // When segmentation is disabled, only quantization_index[0] will be used
+-  for (size_t i = 0; i < N_ELEMENTS(qMatrix->quantization_index); i++) {
++  size_t i;
++  for (i = 0; i < N_ELEMENTS(qMatrix->quantization_index); i++) {
+       qMatrix->quantization_index[i] = settings.quantization_parameter;
+   }
+ 
+-  for (size_t i = 0; i < N_ELEMENTS(qMatrix->quantization_index_delta); i++) {
++  for (i = 0; i < N_ELEMENTS(qMatrix->quantization_index_delta); i++) {
+       qMatrix->quantization_index_delta[i] = 0;
+   }
+-
+ }
+ 
+ void vp8enc_init_SequenceParameterBuffer(VAEncSequenceParameterBufferVP8* seqParam)
+ {
++  size_t i;
+ 
+   memset(seqParam, 0, sizeof(VAEncSequenceParameterBufferVP8));
+ 
+@@ -426,12 +427,13 @@ void vp8enc_init_SequenceParameterBuffer(VAEncSequenceParameterBufferVP8* seqPar
+   seqParam->intra_period = settings.intra_period;
+   seqParam->error_resilient = settings.error_resilient;
+ 
+-  for (size_t i = 0; i < N_ELEMENTS(seqParam->reference_frames); i++)
++  for (i = 0; i < N_ELEMENTS(seqParam->reference_frames); i++)
+      seqParam->reference_frames[i] = VA_INVALID_ID;
+ }
+ 
+ void vp8enc_init_PictureParameterBuffer(VAEncPictureParameterBufferVP8 *picParam)
+ {
++  size_t i;
+   memset(picParam, 0, sizeof(VAEncPictureParameterBufferVP8));
+ 
+   picParam->ref_last_frame = VA_INVALID_SURFACE;
+@@ -441,7 +443,7 @@ void vp8enc_init_PictureParameterBuffer(VAEncPictureParameterBufferVP8 *picParam
+   /* always show it */
+   picParam->pic_flags.bits.show_frame = 1;
+ 
+-  for (size_t i = 0; i < N_ELEMENTS(picParam->loop_filter_level); i++) {
++  for (i = 0; i < N_ELEMENTS(picParam->loop_filter_level); i++) {
+       picParam->loop_filter_level[i] = settings.loop_filter_level;
+   }
+ 
+@@ -578,8 +580,9 @@ void vp8enc_update_picture_parameter(int frame_type, int current_frame)
+ VASurfaceID vp8enc_get_unused_surface()
+ {
+   VASurfaceID current_surface;
++  size_t i = 0;
+ 
+-  for (size_t i = 0; i < NUM_REF_SURFACES; i++) {
++  for (i = 0; i < NUM_REF_SURFACES; i++) {
+         current_surface = vaapi_context.surfaces[i];
+ 
+         if(current_surface != vaapi_context.last_ref_surface && current_surface != vaapi_context.golden_ref_surface && current_surface != vaapi_context.alt_ref_surface)
+@@ -676,6 +679,7 @@ void vp8enc_create_EncoderPipe()
+ {
+   VAEntrypoint entrypoints[5];
+   int num_entrypoints;
++  int i;
+   bool entrypoint_found;
+   VAConfigAttrib conf_attrib[2];
+   VASurfaceAttrib surface_attrib;
+@@ -690,7 +694,7 @@ void vp8enc_create_EncoderPipe()
+                            &num_entrypoints);
+ 
+   entrypoint_found = true;
+-  for(int i = 0; i < num_entrypoints;i++)
++  for(i = 0; i < num_entrypoints;i++)
+   {
+     if (entrypoints[i] == settings.vaapi_entry_point)
+       entrypoint_found = true;
+@@ -773,6 +777,7 @@ void vp8enc_destory_EncoderPipe()
+ 
+ void vp8enc_init_VaapiContext()
+ {
++  size_t i;
+   vaapi_context.profile = VAProfileVP8Version0_3;
+ 
+   vp8enc_init_SequenceParameterBuffer(&vaapi_context.seq_param);
+@@ -784,7 +789,7 @@ void vp8enc_init_VaapiContext()
+   vaapi_context.rate_control_param.header.type = VAEncMiscParameterTypeRateControl;
+   vp8enc_init_MiscParameterBuffers(&vaapi_context.hrd_param.data, &vaapi_context.frame_rate_param.data,&vaapi_context.rate_control_param.data);
+ 
+-  for(size_t i = 0; i < N_ELEMENTS(vaapi_context.va_buffers);i++)
++  for(i = 0; i < N_ELEMENTS(vaapi_context.va_buffers);i++)
+     vaapi_context.va_buffers[i] = VA_INVALID_ID;
+   vaapi_context.num_va_buffers = 0;
+ 
+@@ -956,9 +961,10 @@ vp8enc_render_picture()
+ 
+ void vp8enc_destroy_buffers()
+ {
++  int i;
+   VAStatus va_status;
+ 
+-  for(int i = 0; i < vaapi_context.num_va_buffers; i++) {
++  for(i = 0; i < vaapi_context.num_va_buffers; i++) {
+     if (vaapi_context.va_buffers[i] != VA_INVALID_ID) {
+       va_status = vaDestroyBuffer(vaapi_context.display, vaapi_context.va_buffers[i]);
+       CHECK_VASTATUS(va_status,"vaDestroyBuffer");