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Diffstat (limited to 'third_party/aom/examples/set_maps.c')
-rw-r--r-- | third_party/aom/examples/set_maps.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/third_party/aom/examples/set_maps.c b/third_party/aom/examples/set_maps.c deleted file mode 100644 index 9aeb96e43..000000000 --- a/third_party/aom/examples/set_maps.c +++ /dev/null @@ -1,208 +0,0 @@ -/* - * Copyright (c) 2016, 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. - */ - -// AOM Set Active and ROI Maps -// =========================== -// -// This is an example demonstrating how to control the AOM encoder's -// ROI and Active maps. -// -// ROI (Reigon of Interest) maps are a way for the application to assign -// each macroblock in the image to a region, and then set quantizer and -// filtering parameters on that image. -// -// Active maps are a way for the application to specify on a -// macroblock-by-macroblock basis whether there is any activity in that -// macroblock. -// -// -// Configuration -// ------------- -// An ROI map is set on frame 22. If the width of the image in macroblocks -// is evenly divisble by 4, then the output will appear to have distinct -// columns, where the quantizer, loopfilter, and static threshold differ -// from column to column. -// -// An active map is set on frame 33. If the width of the image in macroblocks -// is evenly divisble by 4, then the output will appear to have distinct -// columns, where one column will have motion and the next will not. -// -// The active map is cleared on frame 44. -// -// Observing The Effects -// --------------------- -// Use the `simple_decoder` example to decode this sample, and observe -// the change in the image at frames 22, 33, and 44. - -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "aom/aom_encoder.h" -#include "aom/aomcx.h" -#include "common/tools_common.h" -#include "common/video_writer.h" - -static const char *exec_name; - -void usage_exit(void) { - fprintf(stderr, "Usage: %s <codec> <width> <height> <infile> <outfile>\n", - exec_name); - exit(EXIT_FAILURE); -} - -static void set_active_map(const aom_codec_enc_cfg_t *cfg, - aom_codec_ctx_t *codec) { - unsigned int i; - aom_active_map_t map = { 0, 0, 0 }; - - map.rows = (cfg->g_h + 15) / 16; - map.cols = (cfg->g_w + 15) / 16; - - map.active_map = (uint8_t *)malloc(map.rows * map.cols); - for (i = 0; i < map.rows * map.cols; ++i) map.active_map[i] = i % 2; - - if (aom_codec_control(codec, AOME_SET_ACTIVEMAP, &map)) - die_codec(codec, "Failed to set active map"); - - free(map.active_map); -} - -static void unset_active_map(const aom_codec_enc_cfg_t *cfg, - aom_codec_ctx_t *codec) { - aom_active_map_t map = { 0, 0, 0 }; - - map.rows = (cfg->g_h + 15) / 16; - map.cols = (cfg->g_w + 15) / 16; - map.active_map = NULL; - - if (aom_codec_control(codec, AOME_SET_ACTIVEMAP, &map)) - die_codec(codec, "Failed to set active map"); -} - -static int encode_frame(aom_codec_ctx_t *codec, aom_image_t *img, - int frame_index, AvxVideoWriter *writer) { - int got_pkts = 0; - aom_codec_iter_t iter = NULL; - const aom_codec_cx_pkt_t *pkt = NULL; - const aom_codec_err_t res = aom_codec_encode(codec, img, frame_index, 1, 0); - if (res != AOM_CODEC_OK) die_codec(codec, "Failed to encode frame"); - - while ((pkt = aom_codec_get_cx_data(codec, &iter)) != NULL) { - got_pkts = 1; - - if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) { - const int keyframe = (pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0; - if (!aom_video_writer_write_frame(writer, pkt->data.frame.buf, - pkt->data.frame.sz, - pkt->data.frame.pts)) { - die_codec(codec, "Failed to write compressed frame"); - } - - printf(keyframe ? "K" : "."); - fflush(stdout); - } - } - - return got_pkts; -} - -int main(int argc, char **argv) { - FILE *infile = NULL; - aom_codec_ctx_t codec; - aom_codec_enc_cfg_t cfg; - int frame_count = 0; - const int limit = 15; - aom_image_t raw; - aom_codec_err_t res; - AvxVideoInfo info; - AvxVideoWriter *writer = NULL; - const AvxInterface *encoder = NULL; - const int fps = 2; // TODO(dkovalev) add command line argument - const double bits_per_pixel_per_frame = 0.067; - - exec_name = argv[0]; - if (argc != 6) die("Invalid number of arguments"); - - memset(&info, 0, sizeof(info)); - - encoder = get_aom_encoder_by_name(argv[1]); - if (encoder == NULL) { - die("Unsupported codec."); - } - assert(encoder != NULL); - info.codec_fourcc = encoder->fourcc; - info.frame_width = (int)strtol(argv[2], NULL, 0); - info.frame_height = (int)strtol(argv[3], NULL, 0); - info.time_base.numerator = 1; - info.time_base.denominator = fps; - - if (info.frame_width <= 0 || info.frame_height <= 0 || - (info.frame_width % 2) != 0 || (info.frame_height % 2) != 0) { - die("Invalid frame size: %dx%d", info.frame_width, info.frame_height); - } - - if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, info.frame_width, - info.frame_height, 1)) { - die("Failed to allocate image."); - } - - printf("Using %s\n", aom_codec_iface_name(encoder->codec_interface())); - - res = aom_codec_enc_config_default(encoder->codec_interface(), &cfg, 0); - if (res) die_codec(&codec, "Failed to get default codec config."); - - cfg.g_w = info.frame_width; - cfg.g_h = info.frame_height; - cfg.g_timebase.num = info.time_base.numerator; - cfg.g_timebase.den = info.time_base.denominator; - cfg.rc_target_bitrate = - (unsigned int)(bits_per_pixel_per_frame * cfg.g_w * cfg.g_h * fps / 1000); - cfg.g_lag_in_frames = 0; - - writer = aom_video_writer_open(argv[5], kContainerIVF, &info); - if (!writer) die("Failed to open %s for writing.", argv[5]); - - if (!(infile = fopen(argv[4], "rb"))) - die("Failed to open %s for reading.", argv[4]); - - if (aom_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0)) - die_codec(&codec, "Failed to initialize encoder"); - - // Encode frames. - while (aom_img_read(&raw, infile) && frame_count < limit) { - ++frame_count; - - if (frame_count == 5) { - set_active_map(&cfg, &codec); - } else if (frame_count == 11) { - unset_active_map(&cfg, &codec); - } - - encode_frame(&codec, &raw, frame_count, writer); - } - - // Flush encoder. - while (encode_frame(&codec, NULL, -1, writer)) { - } - - printf("\n"); - fclose(infile); - printf("Processed %d frames.\n", frame_count); - - aom_img_free(&raw); - if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec."); - - aom_video_writer_close(writer); - - return EXIT_SUCCESS; -} |