1 files changed, 31 insertions, 47 deletions

diff --git a/third_party/aom/examples/lightfield_decoder.c b/third_party/aom/examples/lightfield_decoder.c
index 625cddcac..5da468413 100644
--- a/third_party/aom/examples/lightfield_decoder.c
+++ b/third_party/aom/examples/lightfield_decoder.c
@@ -14,14 +14,10 @@
 //
 // This is an example of a simple lightfield decoder. It builds upon the
 // simple_decoder.c example.  It takes an input file containing the compressed
-// data (in ivf format), treating it as a lightfield instead of a video and
-// will decode a single lightfield tile. The lf_width and lf_height arguments
-// are the number of lightfield images in each dimension. The tile to decode
-// is specified by the tile_u, tile_v, tile_s, tile_t arguments. The tile_u,
-// tile_v specify the image and tile_s, tile_t specify the tile in the image.
+// data (in ivf format), treating it as a lightfield instead of a video.
 // After running the lightfield encoder, run lightfield decoder to decode a
-// single tile:
-// examples/lightfield_decoder vase10x10.ivf vase_reference.yuv 10 10 5
+// batch of tiles:
+// examples/lightfield_decoder vase10x10.ivf vase_reference.yuv 4
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -38,10 +34,7 @@
 static const char *exec_name;
 
 void usage_exit(void) {
-  fprintf(
-      stderr,
-      "Usage: %s <infile> <outfile> <lf_width> <lf_height> <lf_blocksize>\n",
-      exec_name);
+  fprintf(stderr, "Usage: %s <infile> <outfile> <num_references>\n", exec_name);
   exit(EXIT_FAILURE);
 }
 
@@ -85,22 +78,14 @@ int main(int argc, char **argv) {
   AvxVideoReader *reader = NULL;
   const AvxInterface *decoder = NULL;
   const AvxVideoInfo *info = NULL;
-  const char *lf_width_arg;
-  const char *lf_height_arg;
-  const char *lf_blocksize_arg;
-  int width, height;
-  int lf_width, lf_height;
-  int lf_blocksize;
-  int u_blocks;
-  int v_blocks;
+  int num_references;
   aom_image_t reference_images[MAX_EXTERNAL_REFERENCES];
   size_t frame_size = 0;
   const unsigned char *frame = NULL;
-  int n, i;
-
+  int n, i, j;
   exec_name = argv[0];
 
-  if (argc != 6) die("Invalid number of arguments.");
+  if (argc != 4) die("Invalid number of arguments.");
 
   reader = aom_video_reader_open(argv[1]);
   if (!reader) die("Failed to open %s for reading.", argv[1]);
@@ -108,16 +93,9 @@ int main(int argc, char **argv) {
   if (!(outfile = fopen(argv[2], "wb")))
     die("Failed to open %s for writing.", argv[2]);
 
-  lf_width_arg = argv[3];
-  lf_height_arg = argv[4];
-  lf_blocksize_arg = argv[5];
-  lf_width = (int)strtol(lf_width_arg, NULL, 0);
-  lf_height = (int)strtol(lf_height_arg, NULL, 0);
-  lf_blocksize = (int)strtol(lf_blocksize_arg, NULL, 0);
+  num_references = (int)strtol(argv[3], NULL, 0);
 
   info = aom_video_reader_get_info(reader);
-  width = info->frame_width;
-  height = info->frame_height;
 
   decoder = get_aom_decoder_by_fourcc(info->codec_fourcc);
   if (!decoder) die("Unknown input codec.");
@@ -126,33 +104,39 @@ int main(int argc, char **argv) {
   if (aom_codec_dec_init(&codec, decoder->codec_interface(), NULL, 0))
     die_codec(&codec, "Failed to initialize decoder.");
 
-  // How many anchor frames we have.
-  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
-  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
-
-  int num_references = v_blocks * u_blocks;
-
-  // Allocate memory to store decoded references.
-  aom_img_fmt_t ref_fmt = AOM_IMG_FMT_I420;
-  if (!CONFIG_LOWBITDEPTH) ref_fmt |= AOM_IMG_FMT_HIGHBITDEPTH;
-  // Allocate memory with the border so that it can be used as a reference.
-  for (i = 0; i < num_references; i++) {
-    unsigned int border = AOM_BORDER_IN_PIXELS;
-    if (!aom_img_alloc_with_border(&reference_images[i], ref_fmt, width, height,
-                                   32, 8, border)) {
-      die("Failed to allocate references.");
-    }
+  if (aom_codec_control(&codec, AV1D_SET_IS_ANNEXB, info->is_annexb)) {
+    die("Failed to set annex b status");
   }
 
   // Decode anchor frames.
   aom_codec_control_(&codec, AV1_SET_TILE_MODE, 0);
-
   for (i = 0; i < num_references; ++i) {
     aom_video_reader_read_frame(reader);
     frame = aom_video_reader_get_frame(reader, &frame_size);
     if (aom_codec_decode(&codec, frame, frame_size, NULL))
       die_codec(&codec, "Failed to decode frame.");
 
+    if (i == 0) {
+      aom_img_fmt_t ref_fmt = 0;
+      if (aom_codec_control(&codec, AV1D_GET_IMG_FORMAT, &ref_fmt))
+        die_codec(&codec, "Failed to get the image format");
+
+      int frame_res[2];
+      if (aom_codec_control(&codec, AV1D_GET_FRAME_SIZE, frame_res))
+        die_codec(&codec, "Failed to get the image frame size");
+
+      // Allocate memory to store decoded references. Allocate memory with the
+      // border so that it can be used as a reference.
+      for (j = 0; j < num_references; j++) {
+        unsigned int border = AOM_BORDER_IN_PIXELS;
+        if (!aom_img_alloc_with_border(&reference_images[j], ref_fmt,
+                                       frame_res[0], frame_res[1], 32, 8,
+                                       border)) {
+          die("Failed to allocate references.");
+        }
+      }
+    }
+
     if (aom_codec_control(&codec, AV1_COPY_NEW_FRAME_IMAGE,
                           &reference_images[i]))
       die_codec(&codec, "Failed to copy decoded reference frame");