Implement support to RTMP, RTMPT, RTMPE, RTMPTE, RTMPS protocols via

librtmp.

Patch by Howard Chu <hyc * highlandsun * com>.

Originally committed as revision 22710 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 206 insertions, 0 deletions

diff --git a/libavformat/librtmp.c b/libavformat/librtmp.c
new file mode 100644
index 0000000000..82f1bc8362
--- /dev/null
+++ b/libavformat/librtmp.c
@@ -0,0 +1,206 @@
+/*
+ * RTMP network protocol
+ * Copyright (c) 2010 Howard Chu
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file libavformat/librtmp.c
+ * RTMP protocol based on http://rtmpdump.mplayerhq.hu librtmp
+ */
+
+#include "avformat.h"
+
+#include <librtmp/rtmp.h>
+#include <librtmp/log.h>
+
+static int rtmp_close(URLContext *s)
+{
+    RTMP *r = s->priv_data;
+
+    RTMP_Close(r);
+    av_free(r);
+    return 0;
+}
+
+/**
+ * Opens RTMP connection and verifies that the stream can be played.
+ *
+ * URL syntax: rtmp://server[:port][/app][/playpath][ keyword=value]...
+ *             where 'app' is first one or two directories in the path
+ *             (e.g. /ondemand/, /flash/live/, etc.)
+ *             and 'playpath' is a file name (the rest of the path,
+ *             may be prefixed with "mp4:")
+ *
+ *             Additional RTMP library options may be appended as
+ *             space-separated key-value pairs.
+ */
+static int rtmp_open(URLContext *s, const char *uri, int flags)
+{
+    RTMP *r;
+    int rc;
+
+    r = av_mallocz(sizeof(RTMP));
+    if (!r)
+        return AVERROR(ENOMEM);
+
+    switch(av_log_get_level()) {
+    default:
+    case AV_LOG_FATAL:   rc = RTMP_LOGCRIT;    break;
+    case AV_LOG_ERROR:   rc = RTMP_LOGERROR;   break;
+    case AV_LOG_WARNING: rc = RTMP_LOGWARNING; break;
+    case AV_LOG_INFO:    rc = RTMP_LOGINFO;    break;
+    case AV_LOG_VERBOSE: rc = RTMP_LOGDEBUG;   break;
+    case AV_LOG_DEBUG:   rc = RTMP_LOGDEBUG2;  break;
+    }
+    RTMP_LogSetLevel(rc);
+
+    RTMP_Init(r);
+    if (!RTMP_SetupURL(r, s->filename)) {
+        rc = -1;
+        goto fail;
+    }
+
+    if (flags & URL_WRONLY)
+        r->Link.protocol |= RTMP_FEATURE_WRITE;
+
+    if (!RTMP_Connect(r, NULL) || !RTMP_ConnectStream(r, 0)) {
+        rc = -1;
+        goto fail;
+    }
+
+    s->priv_data = r;
+    s->is_streamed = 1;
+    return 0;
+fail:
+    av_free(r);
+    return rc;
+}
+
+static int rtmp_write(URLContext *s, uint8_t *buf, int size)
+{
+    RTMP *r = s->priv_data;
+
+    return RTMP_Write(r, buf, size);
+}
+
+static int rtmp_read(URLContext *s, uint8_t *buf, int size)
+{
+    RTMP *r = s->priv_data;
+
+    return RTMP_Read(r, buf, size);
+}
+
+static int rtmp_read_pause(URLContext *s, int pause)
+{
+    RTMP *r = s->priv_data;
+
+    if (pause)
+        r->m_pauseStamp =
+            r->m_channelTimestamp[r->m_mediaChannel];
+    if (!RTMP_SendPause(r, pause, r->m_pauseStamp))
+        return -1;
+    return 0;
+}
+
+static int64_t rtmp_read_seek(URLContext *s, int stream_index,
+                              int64_t timestamp, int flags)
+{
+    RTMP *r = s->priv_data;
+
+    if (flags & AVSEEK_FLAG_BYTE)
+        return AVERROR_NOTSUPP;
+
+    /* seeks are in milliseconds */
+    timestamp = av_rescale(timestamp, AV_TIME_BASE, 1000);
+    if (!RTMP_SendSeek(r, timestamp))
+        return -1;
+    return timestamp;
+}
+
+static int rtmp_get_file_handle(URLContext *s)
+{
+    RTMP *r = s->priv_data;
+
+    return r->m_sb.sb_socket;
+}
+
+URLProtocol rtmp_protocol = {
+    "rtmp",
+    rtmp_open,
+    rtmp_read,
+    rtmp_write,
+    NULL,                   /* seek */
+    rtmp_close,
+    NULL,                   /* next */
+    rtmp_read_pause,
+    rtmp_read_seek,
+    rtmp_get_file_handle
+};
+
+URLProtocol rtmpt_protocol = {
+    "rtmpt",
+    rtmp_open,
+    rtmp_read,
+    rtmp_write,
+    NULL,                   /* seek */
+    rtmp_close,
+    NULL,                   /* next */
+    rtmp_read_pause,
+    rtmp_read_seek,
+    rtmp_get_file_handle
+};
+
+URLProtocol rtmpe_protocol = {
+    "rtmpe",
+    rtmp_open,
+    rtmp_read,
+    rtmp_write,
+    NULL,                   /* seek */
+    rtmp_close,
+    NULL,                   /* next */
+    rtmp_read_pause,
+    rtmp_read_seek,
+    rtmp_get_file_handle
+};
+
+URLProtocol rtmpte_protocol = {
+    "rtmpte",
+    rtmp_open,
+    rtmp_read,
+    rtmp_write,
+    NULL,                   /* seek */
+    rtmp_close,
+    NULL,                   /* next */
+    rtmp_read_pause,
+    rtmp_read_seek,
+    rtmp_get_file_handle
+};
+
+URLProtocol rtmps_protocol = {
+    "rtmps",
+    rtmp_open,
+    rtmp_read,
+    rtmp_write,
+    NULL,                   /* seek */
+    rtmp_close,
+    NULL,                   /* next */
+    rtmp_read_pause,
+    rtmp_read_seek,
+    rtmp_get_file_handle
+};