Prefer AVERROR(ENOSYS) over AVERROR_NOTSUPP.
[libav.git] / libavformat / librtmp.c
CommitLineData
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1/*
2 * RTMP network protocol
3 * Copyright (c) 2010 Howard Chu
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
9 * License 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 GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file libavformat/librtmp.c
fc122efd 24 * RTMP protocol based on http://rtmpdump.mplayerhq.hu/ librtmp
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25 */
26
27#include "avformat.h"
28
29#include <librtmp/rtmp.h>
30#include <librtmp/log.h>
31
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32static void rtmp_log(int level, const char *fmt, va_list args)
33{
34 switch (level) {
35 default:
36 case RTMP_LOGCRIT: level = AV_LOG_FATAL; break;
37 case RTMP_LOGERROR: level = AV_LOG_ERROR; break;
38 case RTMP_LOGWARNING: level = AV_LOG_WARNING; break;
39 case RTMP_LOGINFO: level = AV_LOG_INFO; break;
40 case RTMP_LOGDEBUG: level = AV_LOG_VERBOSE; break;
41 case RTMP_LOGDEBUG2: level = AV_LOG_DEBUG; break;
42 }
43
44 av_vlog(NULL, level, fmt, args);
45 av_log(NULL, level, "\n");
46}
47
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48static int rtmp_close(URLContext *s)
49{
50 RTMP *r = s->priv_data;
51
52 RTMP_Close(r);
53 av_free(r);
54 return 0;
55}
56
57/**
58 * Opens RTMP connection and verifies that the stream can be played.
59 *
60 * URL syntax: rtmp://server[:port][/app][/playpath][ keyword=value]...
61 * where 'app' is first one or two directories in the path
62 * (e.g. /ondemand/, /flash/live/, etc.)
63 * and 'playpath' is a file name (the rest of the path,
64 * may be prefixed with "mp4:")
65 *
66 * Additional RTMP library options may be appended as
67 * space-separated key-value pairs.
68 */
69static int rtmp_open(URLContext *s, const char *uri, int flags)
70{
71 RTMP *r;
72 int rc;
73
74 r = av_mallocz(sizeof(RTMP));
75 if (!r)
76 return AVERROR(ENOMEM);
77
fc122efd 78 switch (av_log_get_level()) {
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79 default:
80 case AV_LOG_FATAL: rc = RTMP_LOGCRIT; break;
81 case AV_LOG_ERROR: rc = RTMP_LOGERROR; break;
82 case AV_LOG_WARNING: rc = RTMP_LOGWARNING; break;
83 case AV_LOG_INFO: rc = RTMP_LOGINFO; break;
84 case AV_LOG_VERBOSE: rc = RTMP_LOGDEBUG; break;
85 case AV_LOG_DEBUG: rc = RTMP_LOGDEBUG2; break;
86 }
87 RTMP_LogSetLevel(rc);
19c9eedc 88 RTMP_LogSetCallback(rtmp_log);
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89
90 RTMP_Init(r);
91 if (!RTMP_SetupURL(r, s->filename)) {
92 rc = -1;
93 goto fail;
94 }
95
96 if (flags & URL_WRONLY)
97 r->Link.protocol |= RTMP_FEATURE_WRITE;
98
99 if (!RTMP_Connect(r, NULL) || !RTMP_ConnectStream(r, 0)) {
100 rc = -1;
101 goto fail;
102 }
103
fc122efd 104 s->priv_data = r;
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105 s->is_streamed = 1;
106 return 0;
107fail:
108 av_free(r);
109 return rc;
110}
111
112static int rtmp_write(URLContext *s, uint8_t *buf, int size)
113{
114 RTMP *r = s->priv_data;
115
116 return RTMP_Write(r, buf, size);
117}
118
119static int rtmp_read(URLContext *s, uint8_t *buf, int size)
120{
121 RTMP *r = s->priv_data;
122
123 return RTMP_Read(r, buf, size);
124}
125
126static int rtmp_read_pause(URLContext *s, int pause)
127{
128 RTMP *r = s->priv_data;
129
130 if (pause)
131 r->m_pauseStamp =
132 r->m_channelTimestamp[r->m_mediaChannel];
133 if (!RTMP_SendPause(r, pause, r->m_pauseStamp))
134 return -1;
135 return 0;
136}
137
138static int64_t rtmp_read_seek(URLContext *s, int stream_index,
139 int64_t timestamp, int flags)
140{
141 RTMP *r = s->priv_data;
142
143 if (flags & AVSEEK_FLAG_BYTE)
d79fc840 144 return AVERROR(ENOSYS);
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145
146 /* seeks are in milliseconds */
147 timestamp = av_rescale(timestamp, AV_TIME_BASE, 1000);
148 if (!RTMP_SendSeek(r, timestamp))
149 return -1;
150 return timestamp;
151}
152
153static int rtmp_get_file_handle(URLContext *s)
154{
155 RTMP *r = s->priv_data;
156
157 return r->m_sb.sb_socket;
158}
159
160URLProtocol rtmp_protocol = {
161 "rtmp",
162 rtmp_open,
163 rtmp_read,
164 rtmp_write,
165 NULL, /* seek */
166 rtmp_close,
167 NULL, /* next */
168 rtmp_read_pause,
169 rtmp_read_seek,
170 rtmp_get_file_handle
171};
172
173URLProtocol rtmpt_protocol = {
174 "rtmpt",
175 rtmp_open,
176 rtmp_read,
177 rtmp_write,
178 NULL, /* seek */
179 rtmp_close,
180 NULL, /* next */
181 rtmp_read_pause,
182 rtmp_read_seek,
183 rtmp_get_file_handle
184};
185
186URLProtocol rtmpe_protocol = {
187 "rtmpe",
188 rtmp_open,
189 rtmp_read,
190 rtmp_write,
191 NULL, /* seek */
192 rtmp_close,
193 NULL, /* next */
194 rtmp_read_pause,
195 rtmp_read_seek,
196 rtmp_get_file_handle
197};
198
199URLProtocol rtmpte_protocol = {
200 "rtmpte",
201 rtmp_open,
202 rtmp_read,
203 rtmp_write,
204 NULL, /* seek */
205 rtmp_close,
206 NULL, /* next */
207 rtmp_read_pause,
208 rtmp_read_seek,
209 rtmp_get_file_handle
210};
211
212URLProtocol rtmps_protocol = {
213 "rtmps",
214 rtmp_open,
215 rtmp_read,
216 rtmp_write,
217 NULL, /* seek */
218 rtmp_close,
219 NULL, /* next */
220 rtmp_read_pause,
221 rtmp_read_seek,
222 rtmp_get_file_handle
223};