1*77c1e3ccSAndroid Build Coastguard Worker /*
2*77c1e3ccSAndroid Build Coastguard Worker * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
3*77c1e3ccSAndroid Build Coastguard Worker *
4*77c1e3ccSAndroid Build Coastguard Worker * This source code is subject to the terms of the BSD 2 Clause License and
5*77c1e3ccSAndroid Build Coastguard Worker * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6*77c1e3ccSAndroid Build Coastguard Worker * was not distributed with this source code in the LICENSE file, you can
7*77c1e3ccSAndroid Build Coastguard Worker * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8*77c1e3ccSAndroid Build Coastguard Worker * Media Patent License 1.0 was not distributed with this source code in the
9*77c1e3ccSAndroid Build Coastguard Worker * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10*77c1e3ccSAndroid Build Coastguard Worker */
11*77c1e3ccSAndroid Build Coastguard Worker
12*77c1e3ccSAndroid Build Coastguard Worker // Decode With Drops Example
13*77c1e3ccSAndroid Build Coastguard Worker // =========================
14*77c1e3ccSAndroid Build Coastguard Worker //
15*77c1e3ccSAndroid Build Coastguard Worker // This is an example utility which drops a series of frames, as specified
16*77c1e3ccSAndroid Build Coastguard Worker // on the command line. This is useful for observing the error recovery
17*77c1e3ccSAndroid Build Coastguard Worker // features of the codec.
18*77c1e3ccSAndroid Build Coastguard Worker //
19*77c1e3ccSAndroid Build Coastguard Worker // Usage
20*77c1e3ccSAndroid Build Coastguard Worker // -----
21*77c1e3ccSAndroid Build Coastguard Worker // This example adds a single argument to the `simple_decoder` example,
22*77c1e3ccSAndroid Build Coastguard Worker // which specifies the range or pattern of frames to drop. The parameter is
23*77c1e3ccSAndroid Build Coastguard Worker // parsed as follows:
24*77c1e3ccSAndroid Build Coastguard Worker //
25*77c1e3ccSAndroid Build Coastguard Worker // Dropping A Range Of Frames
26*77c1e3ccSAndroid Build Coastguard Worker // --------------------------
27*77c1e3ccSAndroid Build Coastguard Worker // To drop a range of frames, specify the starting frame and the ending
28*77c1e3ccSAndroid Build Coastguard Worker // frame to drop, separated by a dash. The following command will drop
29*77c1e3ccSAndroid Build Coastguard Worker // frames 5 through 10 (base 1).
30*77c1e3ccSAndroid Build Coastguard Worker //
31*77c1e3ccSAndroid Build Coastguard Worker // $ ./decode_with_drops in.ivf out.i420 5-10
32*77c1e3ccSAndroid Build Coastguard Worker //
33*77c1e3ccSAndroid Build Coastguard Worker //
34*77c1e3ccSAndroid Build Coastguard Worker // Dropping A Pattern Of Frames
35*77c1e3ccSAndroid Build Coastguard Worker // ----------------------------
36*77c1e3ccSAndroid Build Coastguard Worker // To drop a pattern of frames, specify the number of frames to drop and
37*77c1e3ccSAndroid Build Coastguard Worker // the number of frames after which to repeat the pattern, separated by
38*77c1e3ccSAndroid Build Coastguard Worker // a forward-slash. The following command will drop 3 of 7 frames.
39*77c1e3ccSAndroid Build Coastguard Worker // Specifically, it will decode 4 frames, then drop 3 frames, and then
40*77c1e3ccSAndroid Build Coastguard Worker // repeat.
41*77c1e3ccSAndroid Build Coastguard Worker //
42*77c1e3ccSAndroid Build Coastguard Worker // $ ./decode_with_drops in.ivf out.i420 3/7
43*77c1e3ccSAndroid Build Coastguard Worker //
44*77c1e3ccSAndroid Build Coastguard Worker //
45*77c1e3ccSAndroid Build Coastguard Worker // Extra Variables
46*77c1e3ccSAndroid Build Coastguard Worker // ---------------
47*77c1e3ccSAndroid Build Coastguard Worker // This example maintains the pattern passed on the command line in the
48*77c1e3ccSAndroid Build Coastguard Worker // `n`, `m`, and `is_range` variables:
49*77c1e3ccSAndroid Build Coastguard Worker //
50*77c1e3ccSAndroid Build Coastguard Worker //
51*77c1e3ccSAndroid Build Coastguard Worker // Making The Drop Decision
52*77c1e3ccSAndroid Build Coastguard Worker // ------------------------
53*77c1e3ccSAndroid Build Coastguard Worker // The example decides whether to drop the frame based on the current
54*77c1e3ccSAndroid Build Coastguard Worker // frame number, immediately before decoding the frame.
55*77c1e3ccSAndroid Build Coastguard Worker
56*77c1e3ccSAndroid Build Coastguard Worker #include <stdio.h>
57*77c1e3ccSAndroid Build Coastguard Worker #include <stdlib.h>
58*77c1e3ccSAndroid Build Coastguard Worker #include <string.h>
59*77c1e3ccSAndroid Build Coastguard Worker
60*77c1e3ccSAndroid Build Coastguard Worker #include "aom/aom_decoder.h"
61*77c1e3ccSAndroid Build Coastguard Worker #include "aom/aomdx.h"
62*77c1e3ccSAndroid Build Coastguard Worker #include "common/tools_common.h"
63*77c1e3ccSAndroid Build Coastguard Worker #include "common/video_reader.h"
64*77c1e3ccSAndroid Build Coastguard Worker
65*77c1e3ccSAndroid Build Coastguard Worker static const char *exec_name;
66*77c1e3ccSAndroid Build Coastguard Worker
usage_exit(void)67*77c1e3ccSAndroid Build Coastguard Worker void usage_exit(void) {
68*77c1e3ccSAndroid Build Coastguard Worker fprintf(stderr, "Usage: %s <infile> <outfile> <N-M|N/M>\n", exec_name);
69*77c1e3ccSAndroid Build Coastguard Worker exit(EXIT_FAILURE);
70*77c1e3ccSAndroid Build Coastguard Worker }
71*77c1e3ccSAndroid Build Coastguard Worker
main(int argc,char ** argv)72*77c1e3ccSAndroid Build Coastguard Worker int main(int argc, char **argv) {
73*77c1e3ccSAndroid Build Coastguard Worker int frame_cnt = 0;
74*77c1e3ccSAndroid Build Coastguard Worker FILE *outfile = NULL;
75*77c1e3ccSAndroid Build Coastguard Worker AvxVideoReader *reader = NULL;
76*77c1e3ccSAndroid Build Coastguard Worker const AvxVideoInfo *info = NULL;
77*77c1e3ccSAndroid Build Coastguard Worker int n = 0;
78*77c1e3ccSAndroid Build Coastguard Worker int m = 0;
79*77c1e3ccSAndroid Build Coastguard Worker int is_range = 0;
80*77c1e3ccSAndroid Build Coastguard Worker char *nptr = NULL;
81*77c1e3ccSAndroid Build Coastguard Worker
82*77c1e3ccSAndroid Build Coastguard Worker exec_name = argv[0];
83*77c1e3ccSAndroid Build Coastguard Worker
84*77c1e3ccSAndroid Build Coastguard Worker if (argc != 4) die("Invalid number of arguments.");
85*77c1e3ccSAndroid Build Coastguard Worker
86*77c1e3ccSAndroid Build Coastguard Worker reader = aom_video_reader_open(argv[1]);
87*77c1e3ccSAndroid Build Coastguard Worker if (!reader) die("Failed to open %s for reading.", argv[1]);
88*77c1e3ccSAndroid Build Coastguard Worker
89*77c1e3ccSAndroid Build Coastguard Worker if (!(outfile = fopen(argv[2], "wb")))
90*77c1e3ccSAndroid Build Coastguard Worker die("Failed to open %s for writing.", argv[2]);
91*77c1e3ccSAndroid Build Coastguard Worker
92*77c1e3ccSAndroid Build Coastguard Worker n = (int)strtol(argv[3], &nptr, 0);
93*77c1e3ccSAndroid Build Coastguard Worker m = (int)strtol(nptr + 1, NULL, 0);
94*77c1e3ccSAndroid Build Coastguard Worker is_range = (*nptr == '-');
95*77c1e3ccSAndroid Build Coastguard Worker if (!n || !m || (*nptr != '-' && *nptr != '/'))
96*77c1e3ccSAndroid Build Coastguard Worker die("Couldn't parse pattern %s.\n", argv[3]);
97*77c1e3ccSAndroid Build Coastguard Worker
98*77c1e3ccSAndroid Build Coastguard Worker info = aom_video_reader_get_info(reader);
99*77c1e3ccSAndroid Build Coastguard Worker
100*77c1e3ccSAndroid Build Coastguard Worker aom_codec_iface_t *decoder = get_aom_decoder_by_fourcc(info->codec_fourcc);
101*77c1e3ccSAndroid Build Coastguard Worker if (!decoder) die("Unknown input codec.");
102*77c1e3ccSAndroid Build Coastguard Worker
103*77c1e3ccSAndroid Build Coastguard Worker printf("Using %s\n", aom_codec_iface_name(decoder));
104*77c1e3ccSAndroid Build Coastguard Worker aom_codec_ctx_t codec;
105*77c1e3ccSAndroid Build Coastguard Worker if (aom_codec_dec_init(&codec, decoder, NULL, 0))
106*77c1e3ccSAndroid Build Coastguard Worker die("Failed to initialize decoder.");
107*77c1e3ccSAndroid Build Coastguard Worker
108*77c1e3ccSAndroid Build Coastguard Worker while (aom_video_reader_read_frame(reader)) {
109*77c1e3ccSAndroid Build Coastguard Worker aom_codec_iter_t iter = NULL;
110*77c1e3ccSAndroid Build Coastguard Worker aom_image_t *img = NULL;
111*77c1e3ccSAndroid Build Coastguard Worker size_t frame_size = 0;
112*77c1e3ccSAndroid Build Coastguard Worker int skip;
113*77c1e3ccSAndroid Build Coastguard Worker const unsigned char *frame =
114*77c1e3ccSAndroid Build Coastguard Worker aom_video_reader_get_frame(reader, &frame_size);
115*77c1e3ccSAndroid Build Coastguard Worker ++frame_cnt;
116*77c1e3ccSAndroid Build Coastguard Worker
117*77c1e3ccSAndroid Build Coastguard Worker skip = (is_range && frame_cnt >= n && frame_cnt <= m) ||
118*77c1e3ccSAndroid Build Coastguard Worker (!is_range && m - (frame_cnt - 1) % m <= n);
119*77c1e3ccSAndroid Build Coastguard Worker
120*77c1e3ccSAndroid Build Coastguard Worker if (!skip) {
121*77c1e3ccSAndroid Build Coastguard Worker putc('.', stdout);
122*77c1e3ccSAndroid Build Coastguard Worker if (aom_codec_decode(&codec, frame, frame_size, NULL))
123*77c1e3ccSAndroid Build Coastguard Worker die_codec(&codec, "Failed to decode frame.");
124*77c1e3ccSAndroid Build Coastguard Worker
125*77c1e3ccSAndroid Build Coastguard Worker while ((img = aom_codec_get_frame(&codec, &iter)) != NULL)
126*77c1e3ccSAndroid Build Coastguard Worker aom_img_write(img, outfile);
127*77c1e3ccSAndroid Build Coastguard Worker } else {
128*77c1e3ccSAndroid Build Coastguard Worker putc('X', stdout);
129*77c1e3ccSAndroid Build Coastguard Worker }
130*77c1e3ccSAndroid Build Coastguard Worker
131*77c1e3ccSAndroid Build Coastguard Worker fflush(stdout);
132*77c1e3ccSAndroid Build Coastguard Worker }
133*77c1e3ccSAndroid Build Coastguard Worker
134*77c1e3ccSAndroid Build Coastguard Worker printf("Processed %d frames.\n", frame_cnt);
135*77c1e3ccSAndroid Build Coastguard Worker if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
136*77c1e3ccSAndroid Build Coastguard Worker
137*77c1e3ccSAndroid Build Coastguard Worker printf("Play: ffplay -f rawvideo -pix_fmt yuv420p -s %dx%d %s\n",
138*77c1e3ccSAndroid Build Coastguard Worker info->frame_width, info->frame_height, argv[2]);
139*77c1e3ccSAndroid Build Coastguard Worker
140*77c1e3ccSAndroid Build Coastguard Worker aom_video_reader_close(reader);
141*77c1e3ccSAndroid Build Coastguard Worker fclose(outfile);
142*77c1e3ccSAndroid Build Coastguard Worker
143*77c1e3ccSAndroid Build Coastguard Worker return EXIT_SUCCESS;
144*77c1e3ccSAndroid Build Coastguard Worker }
145