shithub: libvpx

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Add frame pointer to support recon frames in tpl model

Add frame pointer to re-use spare frames to store the reconstructed
frames.

Change-Id: I870aa048fc9b7d8b356aa73df3a92b4670425f95

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -5496,12 +5496,40 @@

 void init_gop_frames(VP9_COMP *cpi, GF_PICTURE *gf_picture,

                      const GF_GROUP *gf_group, int *tpl_group_frames) {

-  int frame_idx, i;

+  VP9_COMMON *cm = &cpi->common;

+  int frame_idx = 0;

+  int i;

   int gld_index = -1;

   int alt_index = -1;

   int lst_index = -1;

   int extend_frame_count = 0;

   int pframe_qindex = cpi->tpl_stats[2].base_qindex;

+

+  RefCntBuffer *frame_bufs = cm->buffer_pool->frame_bufs;

+  int recon_frame_index[REFS_PER_FRAME + 1] = { -1, -1, -1, -1 };

+

+  for (i = 0; i < FRAME_BUFFERS && frame_idx < REFS_PER_FRAME + 1; ++i) {

+    if (frame_bufs[i].ref_count == 0) {

+      alloc_frame_mvs(cm, i);

+      if (vpx_realloc_frame_buffer(&frame_bufs[i].buf, cm->width, cm->height,

+                                   cm->subsampling_x, cm->subsampling_y,

+#if CONFIG_VP9_HIGHBITDEPTH

+                                   cm->use_highbitdepth,

+#endif

+                                   VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,

+                                   NULL, NULL, NULL))

+        vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,

+                           "Failed to allocate frame buffer");

+

+      recon_frame_index[frame_idx] = i;

+      ++frame_idx;

+    }

+  }

+

+  for (i = 0; i < REFS_PER_FRAME + 1; ++i) {

+    assert(recon_frame_index[i] >= 0);

+    cpi->tpl_recon_frames[i] = &frame_bufs[recon_frame_index[i]].buf;

+  }

   *tpl_group_frames = 0;

--- a/vp9/encoder/vp9_encoder.h

+++ b/vp9/encoder/vp9_encoder.h

@@ -501,6 +501,7 @@

   YV12_BUFFER_CONFIG *raw_source_frame;

   TplDepFrame tpl_stats[MAX_LAG_BUFFERS];

+  YV12_BUFFER_CONFIG *tpl_recon_frames[REFS_PER_FRAME + 1];

   TileDataEnc *tile_data;

   int allocated_tiles;  // Keep track of memory allocated for tiles.