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-rw-r--r--third_party/aom/examples/lightfield_decoder.c233
1 files changed, 135 insertions, 98 deletions
diff --git a/third_party/aom/examples/lightfield_decoder.c b/third_party/aom/examples/lightfield_decoder.c
index 8743df9bc..625cddcac 100644
--- a/third_party/aom/examples/lightfield_decoder.c
+++ b/third_party/aom/examples/lightfield_decoder.c
@@ -14,14 +14,14 @@
//
// 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 webm format), treating it as a lightfield instead of a video and
+// 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.
// After running the lightfield encoder, run lightfield decoder to decode a
// single tile:
-// examples/lightfield_decoder vase10x10.webm vase_tile.yuv 10 10 3 4 5 10 5
+// examples/lightfield_decoder vase10x10.ivf vase_reference.yuv 10 10 5
#include <stdio.h>
#include <stdlib.h>
@@ -29,47 +29,57 @@
#include "aom/aom_decoder.h"
#include "aom/aomdx.h"
+#include "common/tools_common.h"
+#include "common/video_reader.h"
-#include "../tools_common.h"
-#include "../video_reader.h"
-#include "./aom_config.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> <tlie_u>"
- " <tile_v> <tile_s> <tile_t> <lf_blocksize>\n",
- exec_name);
+ fprintf(
+ stderr,
+ "Usage: %s <infile> <outfile> <lf_width> <lf_height> <lf_blocksize>\n",
+ exec_name);
exit(EXIT_FAILURE);
}
-aom_image_t *aom_img_copy(aom_image_t *src, aom_image_t *dst) {
- dst = aom_img_alloc(dst, src->fmt, src->d_w, src->d_h, 16);
-
- int plane;
-
- for (plane = 0; plane < 3; ++plane) {
- uint8_t *src_buf = src->planes[plane];
- const int src_stride = src->stride[plane];
- const int src_w = plane == 0 ? src->d_w : src->d_w >> 1;
- const int src_h = plane == 0 ? src->d_h : src->d_h >> 1;
-
- uint8_t *dst_buf = dst->planes[plane];
- const int dst_stride = dst->stride[plane];
- int y;
-
- for (y = 0; y < src_h; ++y) {
- memcpy(dst_buf, src_buf, src_w);
- src_buf += src_stride;
- dst_buf += dst_stride;
- }
- }
- return dst;
-}
+// Tile list entry provided by the application
+typedef struct {
+ int image_idx;
+ int reference_idx;
+ int tile_col;
+ int tile_row;
+} TILE_LIST_INFO;
+
+// M references: 0 - M-1; N images(including references): 0 - N-1;
+// Note: order the image index incrementally, so that we only go through the
+// bitstream once to construct the tile list.
+const int num_tile_lists = 2;
+const uint16_t tile_count_minus_1 = 9 - 1;
+const TILE_LIST_INFO tile_list[2][9] = {
+ { { 16, 0, 4, 5 },
+ { 83, 3, 13, 2 },
+ { 57, 2, 2, 6 },
+ { 31, 1, 11, 5 },
+ { 2, 0, 7, 4 },
+ { 77, 3, 9, 9 },
+ { 49, 1, 0, 1 },
+ { 6, 0, 3, 10 },
+ { 63, 2, 5, 8 } },
+ { { 65, 2, 11, 1 },
+ { 42, 1, 3, 7 },
+ { 88, 3, 8, 4 },
+ { 76, 3, 1, 15 },
+ { 1, 0, 2, 2 },
+ { 19, 0, 5, 6 },
+ { 60, 2, 4, 0 },
+ { 25, 1, 11, 15 },
+ { 50, 2, 5, 4 } },
+};
int main(int argc, char **argv) {
- int frame_cnt = 0;
FILE *outfile = NULL;
aom_codec_ctx_t codec;
AvxVideoReader *reader = NULL;
@@ -77,20 +87,20 @@ int main(int argc, char **argv) {
const AvxVideoInfo *info = NULL;
const char *lf_width_arg;
const char *lf_height_arg;
- const char *tile_u_arg;
- const char *tile_v_arg;
- const char *tile_s_arg;
- const char *tile_t_arg;
const char *lf_blocksize_arg;
+ int width, height;
int lf_width, lf_height;
- int tile_u, tile_v, tile_s, tile_t;
int lf_blocksize;
int u_blocks;
int v_blocks;
+ aom_image_t reference_images[MAX_EXTERNAL_REFERENCES];
+ size_t frame_size = 0;
+ const unsigned char *frame = NULL;
+ int n, i;
exec_name = argv[0];
- if (argc != 10) die("Invalid number of arguments.");
+ if (argc != 6) die("Invalid number of arguments.");
reader = aom_video_reader_open(argv[1]);
if (!reader) die("Failed to open %s for reading.", argv[1]);
@@ -100,86 +110,113 @@ int main(int argc, char **argv) {
lf_width_arg = argv[3];
lf_height_arg = argv[4];
- tile_u_arg = argv[5];
- tile_v_arg = argv[6];
- tile_s_arg = argv[7];
- tile_t_arg = argv[8];
- lf_blocksize_arg = argv[9];
+ lf_blocksize_arg = argv[5];
lf_width = (int)strtol(lf_width_arg, NULL, 0);
lf_height = (int)strtol(lf_height_arg, NULL, 0);
- tile_u = (int)strtol(tile_u_arg, NULL, 0);
- tile_v = (int)strtol(tile_v_arg, NULL, 0);
- tile_s = (int)strtol(tile_s_arg, NULL, 0);
- tile_t = (int)strtol(tile_t_arg, NULL, 0);
lf_blocksize = (int)strtol(lf_blocksize_arg, 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 reference images we need to encode.
+ // How many anchor frames we have.
u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
- aom_image_t *reference_images =
- (aom_image_t *)malloc(u_blocks * v_blocks * sizeof(aom_image_t));
- for (int bv = 0; bv < v_blocks; ++bv) {
- for (int bu = 0; bu < u_blocks; ++bu) {
- aom_video_reader_read_frame(reader);
- aom_codec_iter_t iter = NULL;
- aom_image_t *img = NULL;
- size_t frame_size = 0;
- const unsigned char *frame =
- aom_video_reader_get_frame(reader, &frame_size);
- if (aom_codec_decode(&codec, frame, (unsigned int)frame_size, NULL, 0))
- die_codec(&codec, "Failed to decode frame.");
-
- while ((img = aom_codec_get_frame(&codec, &iter)) != NULL) {
- aom_img_copy(img, &reference_images[bu + bv * u_blocks]);
- char name[1024];
- snprintf(name, sizeof(name), "ref_%d_%d.yuv", bu, bv);
- 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);
- ++frame_cnt;
- }
+
+ 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.");
}
}
- int decode_frame_index = tile_v * lf_width + tile_u;
- do {
+ // 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);
- } while (frame_cnt++ != decode_frame_index);
- size_t frame_size = 0;
- const unsigned char *frame = aom_video_reader_get_frame(reader, &frame_size);
-
- int ref_bu = tile_u / lf_blocksize;
- int ref_bv = tile_v / lf_blocksize;
- int ref_bi = ref_bu + ref_bv * u_blocks;
- av1_ref_frame_t ref;
- ref.idx = 0;
- ref.img = reference_images[ref_bi];
- // This is too slow for real lightfield rendering. This copies the
- // reference image bytes. We need a way to just set a pointer
- // in order to make this fast enough.
- if (aom_codec_control(&codec, AV1_SET_REFERENCE, &ref)) {
- die_codec(&codec, "Failed to set reference image.");
+ 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);
+ }
+ }
+
+ FILE *infile = aom_video_reader_get_file(reader);
+ // Record the offset of the first camera image.
+ const FileOffset camera_frame_pos = ftello(infile);
+
+ // Process 1 tile.
+ for (n = 0; n < num_tile_lists; n++) {
+ for (i = 0; i <= tile_count_minus_1; i++) {
+ int image_idx = tile_list[n][i].image_idx;
+ int ref_idx = tile_list[n][i].reference_idx;
+ int tc = tile_list[n][i].tile_col;
+ int tr = tile_list[n][i].tile_row;
+ int frame_cnt = -1;
+
+ // Seek to the first camera image.
+ fseeko(infile, camera_frame_pos, SEEK_SET);
+
+ // Read out the camera image
+ while (frame_cnt != image_idx) {
+ aom_video_reader_read_frame(reader);
+ frame_cnt++;
+ }
+
+ frame = aom_video_reader_get_frame(reader, &frame_size);
+
+ aom_codec_control_(&codec, AV1_SET_TILE_MODE, 1);
+ aom_codec_control_(&codec, AV1D_EXT_TILE_DEBUG, 1);
+ aom_codec_control_(&codec, AV1_SET_DECODE_TILE_ROW, tr);
+ aom_codec_control_(&codec, AV1_SET_DECODE_TILE_COL, tc);
+
+ av1_ref_frame_t ref;
+ ref.idx = 0;
+ ref.use_external_ref = 1;
+ ref.img = reference_images[ref_idx];
+ if (aom_codec_control(&codec, AV1_SET_REFERENCE, &ref)) {
+ die_codec(&codec, "Failed to set reference frame.");
+ }
+
+ aom_codec_err_t aom_status =
+ aom_codec_decode(&codec, frame, frame_size, NULL);
+ if (aom_status) die_codec(&codec, "Failed to decode tile.");
+
+ aom_codec_iter_t iter = NULL;
+ aom_image_t *img = aom_codec_get_frame(&codec, &iter);
+ aom_img_write(img, outfile);
+ }
}
- aom_codec_control_(&codec, AV1_SET_DECODE_TILE_ROW, tile_t);
- aom_codec_control_(&codec, AV1_SET_DECODE_TILE_COL, tile_s);
- aom_codec_err_t aom_status =
- aom_codec_decode(&codec, frame, frame_size, NULL, 0);
- if (aom_status) die_codec(&codec, "Failed to decode tile.");
- aom_codec_iter_t iter = NULL;
- aom_image_t *img = aom_codec_get_frame(&codec, &iter);
- aom_img_write(img, 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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 01:55:24 +0000