lavc/libkvazaar: fix incompatible pointer type.
[ffmpeg.git] / libavformat / fifo_test.c
1 /*
2  * FIFO test pseudo-muxer
3  * Copyright (c) 2016 Jan Sebechlebsky
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public License
9  * as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with FFmpeg; if not, write to the Free Software * Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include <stdlib.h>
23
24 #include "libavutil/opt.h"
25 #include "libavutil/time.h"
26 #include "libavutil/avassert.h"
27
28 #include "avformat.h"
29 #include "url.h"
30
31 /* Implementation of mock muxer to simulate real muxer failures */
32
33 #define MAX_TST_PACKETS 128
34 #define SLEEPTIME_50_MS 50000
35 #define SLEEPTIME_10_MS 10000
36
37 /* Implementation of mock muxer to simulate real muxer failures */
38
39 /* This is structure of data sent in packets to
40  * failing muxer */
41 typedef struct FailingMuxerPacketData {
42     int ret;             /* return value of write_packet call*/
43     int recover_after;   /* set ret to zero after this number of recovery attempts */
44     unsigned sleep_time; /* sleep for this long in write_packet to simulate long I/O operation */
45 } FailingMuxerPacketData;
46
47
48 typedef struct FailingMuxerContext {
49     AVClass *class;
50     int write_header_ret;
51     int write_trailer_ret;
52     /* If non-zero, summary of processed packets will be printed in deinit */
53     int print_deinit_summary;
54
55     int flush_count;
56     int pts_written[MAX_TST_PACKETS];
57     int pts_written_nr;
58 } FailingMuxerContext;
59
60 static int failing_write_header(AVFormatContext *avf)
61 {
62     FailingMuxerContext *ctx = avf->priv_data;
63     return ctx->write_header_ret;
64 }
65
66 static int failing_write_packet(AVFormatContext *avf, AVPacket *pkt)
67 {
68     FailingMuxerContext *ctx = avf->priv_data;
69     int ret = 0;
70     if (!pkt) {
71         ctx->flush_count++;
72     } else {
73         FailingMuxerPacketData *data = (FailingMuxerPacketData*) pkt->data;
74
75         if (!data->recover_after) {
76             data->ret = 0;
77         } else {
78             data->recover_after--;
79         }
80
81         ret = data->ret;
82
83         if (data->sleep_time) {
84             int64_t slept = 0;
85             while (slept < data->sleep_time) {
86                 if (ff_check_interrupt(&avf->interrupt_callback))
87                     return AVERROR_EXIT;
88                 av_usleep(SLEEPTIME_10_MS);
89                 slept += SLEEPTIME_10_MS;
90             }
91         }
92
93         if (!ret) {
94             ctx->pts_written[ctx->pts_written_nr++] = pkt->pts;
95             av_packet_unref(pkt);
96         }
97     }
98     return ret;
99 }
100
101 static int failing_write_trailer(AVFormatContext *avf)
102 {
103     FailingMuxerContext *ctx = avf->priv_data;
104     return ctx->write_trailer_ret;
105 }
106
107 static void failing_deinit(AVFormatContext *avf)
108 {
109     int i;
110     FailingMuxerContext *ctx = avf->priv_data;
111
112     if (!ctx->print_deinit_summary)
113         return;
114
115     printf("flush count: %d\n", ctx->flush_count);
116     printf("pts seen nr: %d\n", ctx->pts_written_nr);
117     printf("pts seen: ");
118     for (i = 0; i < ctx->pts_written_nr; ++i ) {
119         printf(i ? ",%d" : "%d", ctx->pts_written[i]);
120     }
121     printf("\n");
122 }
123 #define OFFSET(x) offsetof(FailingMuxerContext, x)
124 static const AVOption options[] = {
125         {"write_header_ret", "write_header() return value", OFFSET(write_header_ret),
126          AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
127         {"write_trailer_ret", "write_trailer() return value", OFFSET(write_trailer_ret),
128          AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
129         {"print_deinit_summary", "print summary when deinitializing muxer", OFFSET(print_deinit_summary),
130          AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
131         {NULL}
132     };
133
134 static const AVClass failing_muxer_class = {
135     .class_name = "Fifo test muxer",
136     .item_name  = av_default_item_name,
137     .option     = options,
138     .version    = LIBAVUTIL_VERSION_INT,
139 };
140
141 AVOutputFormat ff_fifo_test_muxer = {
142     .name           = "fifo_test",
143     .long_name      = NULL_IF_CONFIG_SMALL("Fifo test muxer"),
144     .priv_data_size = sizeof(FailingMuxerContext),
145     .write_header   = failing_write_header,
146     .write_packet   = failing_write_packet,
147     .write_trailer  = failing_write_trailer,
148     .deinit         = failing_deinit,
149     .priv_class     = &failing_muxer_class,
150     .flags          = AVFMT_NOFILE | AVFMT_ALLOW_FLUSH,
151 };
152