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| 1 /* |
| 2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #include <stdio.h> |
| 12 #include <stdlib.h> |
| 13 #include <string.h> |
| 14 |
| 15 #include "vpx/vpx_encoder.h" |
| 16 #include "vpx/vp8cx.h" |
| 17 |
| 18 #include "./tools_common.h" |
| 19 #include "./video_writer.h" |
| 20 |
| 21 static const char *exec_name; |
| 22 |
| 23 void usage_exit() { |
| 24 fprintf(stderr, "vp9_lossless_encoder: Example demonstrating VP9 lossless " |
| 25 "encoding feature. Supports raw input only.\n"); |
| 26 fprintf(stderr, "Usage: %s <width> <height> <infile> <outfile>\n", exec_name); |
| 27 exit(EXIT_FAILURE); |
| 28 } |
| 29 |
| 30 static int encode_frame(vpx_codec_ctx_t *codec, |
| 31 vpx_image_t *img, |
| 32 int frame_index, |
| 33 int flags, |
| 34 VpxVideoWriter *writer) { |
| 35 int got_pkts = 0; |
| 36 vpx_codec_iter_t iter = NULL; |
| 37 const vpx_codec_cx_pkt_t *pkt = NULL; |
| 38 const vpx_codec_err_t res = vpx_codec_encode(codec, img, frame_index, 1, |
| 39 flags, VPX_DL_GOOD_QUALITY); |
| 40 if (res != VPX_CODEC_OK) |
| 41 die_codec(codec, "Failed to encode frame"); |
| 42 |
| 43 while ((pkt = vpx_codec_get_cx_data(codec, &iter)) != NULL) { |
| 44 got_pkts = 1; |
| 45 |
| 46 if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) { |
| 47 const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0; |
| 48 if (!vpx_video_writer_write_frame(writer, |
| 49 pkt->data.frame.buf, |
| 50 pkt->data.frame.sz, |
| 51 pkt->data.frame.pts)) { |
| 52 die_codec(codec, "Failed to write compressed frame"); |
| 53 } |
| 54 printf(keyframe ? "K" : "."); |
| 55 fflush(stdout); |
| 56 } |
| 57 } |
| 58 |
| 59 return got_pkts; |
| 60 } |
| 61 |
| 62 int main(int argc, char **argv) { |
| 63 FILE *infile = NULL; |
| 64 vpx_codec_ctx_t codec; |
| 65 vpx_codec_enc_cfg_t cfg; |
| 66 int frame_count = 0; |
| 67 vpx_image_t raw; |
| 68 vpx_codec_err_t res; |
| 69 VpxVideoInfo info = {0}; |
| 70 VpxVideoWriter *writer = NULL; |
| 71 const VpxInterface *encoder = NULL; |
| 72 const int fps = 30; |
| 73 |
| 74 exec_name = argv[0]; |
| 75 |
| 76 if (argc < 5) |
| 77 die("Invalid number of arguments"); |
| 78 |
| 79 encoder = get_vpx_encoder_by_name("vp9"); |
| 80 if (!encoder) |
| 81 die("Unsupported codec."); |
| 82 |
| 83 info.codec_fourcc = encoder->fourcc; |
| 84 info.frame_width = strtol(argv[1], NULL, 0); |
| 85 info.frame_height = strtol(argv[2], NULL, 0); |
| 86 info.time_base.numerator = 1; |
| 87 info.time_base.denominator = fps; |
| 88 |
| 89 if (info.frame_width <= 0 || |
| 90 info.frame_height <= 0 || |
| 91 (info.frame_width % 2) != 0 || |
| 92 (info.frame_height % 2) != 0) { |
| 93 die("Invalid frame size: %dx%d", info.frame_width, info.frame_height); |
| 94 } |
| 95 |
| 96 if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width, |
| 97 info.frame_height, 1)) { |
| 98 die("Failed to allocate image."); |
| 99 } |
| 100 |
| 101 printf("Using %s\n", vpx_codec_iface_name(encoder->codec_interface())); |
| 102 |
| 103 res = vpx_codec_enc_config_default(encoder->codec_interface(), &cfg, 0); |
| 104 if (res) |
| 105 die_codec(&codec, "Failed to get default codec config."); |
| 106 |
| 107 cfg.g_w = info.frame_width; |
| 108 cfg.g_h = info.frame_height; |
| 109 cfg.g_timebase.num = info.time_base.numerator; |
| 110 cfg.g_timebase.den = info.time_base.denominator; |
| 111 |
| 112 writer = vpx_video_writer_open(argv[4], kContainerIVF, &info); |
| 113 if (!writer) |
| 114 die("Failed to open %s for writing.", argv[4]); |
| 115 |
| 116 if (!(infile = fopen(argv[3], "rb"))) |
| 117 die("Failed to open %s for reading.", argv[3]); |
| 118 |
| 119 if (vpx_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0)) |
| 120 die_codec(&codec, "Failed to initialize encoder"); |
| 121 |
| 122 if (vpx_codec_control_(&codec, VP9E_SET_LOSSLESS, 1)) |
| 123 die_codec(&codec, "Failed to use lossless mode"); |
| 124 |
| 125 // Encode frames. |
| 126 while (vpx_img_read(&raw, infile)) { |
| 127 encode_frame(&codec, &raw, frame_count++, 0, writer); |
| 128 } |
| 129 |
| 130 // Flush encoder. |
| 131 while (encode_frame(&codec, NULL, -1, 0, writer)) {} |
| 132 |
| 133 printf("\n"); |
| 134 fclose(infile); |
| 135 printf("Processed %d frames.\n", frame_count); |
| 136 |
| 137 vpx_img_free(&raw); |
| 138 if (vpx_codec_destroy(&codec)) |
| 139 die_codec(&codec, "Failed to destroy codec."); |
| 140 |
| 141 vpx_video_writer_close(writer); |
| 142 |
| 143 return EXIT_SUCCESS; |
| 144 } |
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