| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #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, |
| "lossless_encoder: Example demonstrating lossless " |
| "encoding feature. Supports raw input only.\n"); |
| fprintf(stderr, "Usage: %s <width> <height> <infile> <outfile>\n", exec_name); |
| exit(EXIT_FAILURE); |
| } |
| |
| static int encode_frame(aom_codec_ctx_t *codec, aom_image_t *img, |
| int frame_index, int flags, 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, flags); |
| 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_enc_cfg_t cfg; |
| int frame_count = 0; |
| aom_image_t raw; |
| aom_codec_err_t res; |
| AvxVideoInfo info; |
| AvxVideoWriter *writer = NULL; |
| const int fps = 30; |
| |
| exec_name = argv[0]; |
| |
| // Clear explicitly, as simply assigning "{ 0 }" generates |
| // "missing-field-initializers" warning in some compilers. |
| memset(&info, 0, sizeof(info)); |
| |
| if (argc < 5) die("Invalid number of arguments"); |
| |
| aom_codec_iface_t *encoder = get_aom_encoder_by_short_name("av1"); |
| if (!encoder) die("Unsupported codec."); |
| |
| info.codec_fourcc = get_fourcc_by_aom_encoder(encoder); |
| info.frame_width = (int)strtol(argv[1], NULL, 0); |
| info.frame_height = (int)strtol(argv[2], 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)); |
| |
| aom_codec_ctx_t codec; |
| res = aom_codec_enc_config_default(encoder, &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; |
| |
| writer = aom_video_writer_open(argv[4], kContainerIVF, &info); |
| if (!writer) die("Failed to open %s for writing.", argv[4]); |
| |
| if (!(infile = fopen(argv[3], "rb"))) |
| die("Failed to open %s for reading.", argv[3]); |
| |
| if (aom_codec_enc_init(&codec, encoder, &cfg, 0)) |
| die("Failed to initialize encoder"); |
| |
| if (AOM_CODEC_CONTROL_TYPECHECKED(&codec, AV1E_SET_LOSSLESS, 1)) |
| die_codec(&codec, "Failed to use lossless mode"); |
| |
| // Encode frames. |
| while (aom_img_read(&raw, infile)) { |
| encode_frame(&codec, &raw, frame_count++, 0, writer); |
| } |
| |
| // Flush encoder. |
| while (encode_frame(&codec, NULL, -1, 0, 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; |
| } |