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authortrav90 <travawine@palemoon.org>2018-10-19 21:52:15 -0500
committertrav90 <travawine@palemoon.org>2018-10-19 21:52:20 -0500
commitbbcc64772580c8a979288791afa02d30bc476d2e (patch)
tree437ce94c3fdd7497508e5b55de06c6d011678597 /third_party/aom/examples/lightfield_tile_list_decoder.c
parent14805f6ddbfb173c327768fff9f81f40ce5e81b0 (diff)
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Update aom to v1.0.0
Update aom to commit id d14c5bb4f336ef1842046089849dee4a301fbbf0.
Diffstat (limited to 'third_party/aom/examples/lightfield_tile_list_decoder.c')
-rw-r--r--third_party/aom/examples/lightfield_tile_list_decoder.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/third_party/aom/examples/lightfield_tile_list_decoder.c b/third_party/aom/examples/lightfield_tile_list_decoder.c
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+++ b/third_party/aom/examples/lightfield_tile_list_decoder.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+// Lightfield Tile List Decoder
+// ============================
+//
+// This is a lightfield tile list decoder example. It takes an input file that
+// contains the anchor frames that are references of the coded tiles, the camera
+// frame header, and tile list OBUs that include the tile information and the
+// compressed tile data. This input file is reconstructed from the encoded
+// lightfield ivf file, and is decodable by AV1 decoder. The lf_width and
+// lf_height arguments are the number of lightfield images in each dimension.
+// The lf_blocksize determines the number of reference images used.
+// Run lightfield tile list decoder to decode an AV1 tile list file:
+// examples/lightfield_tile_list_decoder vase_tile_list.ivf vase_tile_list.yuv
+// 10 10 5 2
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "aom/aom_decoder.h"
+#include "aom/aomdx.h"
+#include "common/tools_common.h"
+#include "common/video_reader.h"
+
+#define MAX_EXTERNAL_REFERENCES 128
+#define AOM_BORDER_IN_PIXELS 288
+
+static const char *exec_name;
+
+void usage_exit(void) {
+ fprintf(stderr,
+ "Usage: %s <infile> <outfile> <lf_width> <lf_height> <lf_blocksize> "
+ "<num_tile_lists>\n",
+ exec_name);
+ exit(EXIT_FAILURE);
+}
+
+int main(int argc, char **argv) {
+ FILE *outfile = NULL;
+ aom_codec_ctx_t codec;
+ 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, lf_blocksize;
+ int u_blocks, v_blocks;
+ int num_tile_lists;
+ aom_image_t reference_images[MAX_EXTERNAL_REFERENCES];
+ size_t frame_size = 0;
+ const unsigned char *frame = NULL;
+ int i, n;
+
+ exec_name = argv[0];
+
+ if (argc != 7) die("Invalid number of arguments.");
+
+ reader = aom_video_reader_open(argv[1]);
+ if (!reader) die("Failed to open %s for reading.", argv[1]);
+
+ 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_tile_lists = (int)strtol(argv[6], 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.");
+ printf("Using %s\n", aom_codec_iface_name(decoder->codec_interface()));
+
+ 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.");
+ }
+ }
+
+ // 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 (aom_codec_control(&codec, AV1_COPY_NEW_FRAME_IMAGE,
+ &reference_images[i]))
+ die_codec(&codec, "Failed to copy decoded reference frame");
+
+ aom_codec_iter_t iter = NULL;
+ aom_image_t *img = NULL;
+ while ((img = aom_codec_get_frame(&codec, &iter)) != NULL) {
+ char name[1024];
+ snprintf(name, sizeof(name), "ref_%d.yuv", i);
+ printf("writing ref image to %s, %d, %d\n", name, img->d_w, img->d_h);
+ FILE *ref_file = fopen(name, "wb");
+ aom_img_write(img, ref_file);
+ fclose(ref_file);
+ }
+ }
+
+ // Decode the lightfield.
+ aom_codec_control_(&codec, AV1_SET_TILE_MODE, 1);
+
+ // Set external references.
+ av1_ext_ref_frame_t set_ext_ref = { &reference_images[0], num_references };
+ aom_codec_control_(&codec, AV1D_SET_EXT_REF_PTR, &set_ext_ref);
+
+ // Must decode the camera frame header first.
+ 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 the frame.");
+
+ // Decode tile lists one by one.
+ for (n = 0; n < num_tile_lists; n++) {
+ 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 the tile list.");
+
+ aom_codec_iter_t iter = NULL;
+ aom_image_t *img;
+ while ((img = aom_codec_get_frame(&codec, &iter)))
+ fwrite(img->img_data, 1, img->sz, outfile);
+ }
+
+ for (i = 0; i < num_references; i++) aom_img_free(&reference_images[i]);
+ if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
+ aom_video_reader_close(reader);
+ fclose(outfile);
+
+ return EXIT_SUCCESS;
+}