#define LOG_CONTEXT s
#endif
+//#define DEBUG
+
/** RTMP protocol handler state */
typedef enum {
STATE_START, ///< client has not done anything yet
STATE_HANDSHAKED, ///< client has performed handshake
+ STATE_RELEASING, ///< client releasing stream before publish it (for output)
+ STATE_FCPUBLISH, ///< client FCPublishing stream (for output)
STATE_CONNECTING, ///< client connected to server successfully
STATE_READY, ///< client has sent all needed commands and waits for server reply
STATE_PLAYING, ///< client has started receiving multimedia data from server
+ STATE_PUBLISHING, ///< client has started sending multimedia data to server (for output)
+ STATE_STOPPED, ///< the broadcast has been stopped
} ClientState;
/** protocol handler context */
uint8_t* flv_data; ///< buffer with data for demuxer
int flv_size; ///< current buffer size
int flv_off; ///< number of bytes read from current buffer
+ RTMPPacket out_pkt; ///< rtmp packet, created from flv a/v or metadata (for output)
} RTMPContext;
#define PLAYER_KEY_OPEN_PART_LEN 30 ///< length of partial key used for first client digest signing
const char *host, int port)
{
RTMPPacket pkt;
- uint8_t ver[32], *p;
+ uint8_t ver[64], *p;
char tcurl[512];
ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 4096);
ff_amf_write_field_name(&p, "app");
ff_amf_write_string(&p, rt->app);
- snprintf(ver, sizeof(ver), "%s %d,%d,%d,%d", RTMP_CLIENT_PLATFORM, RTMP_CLIENT_VER1,
- RTMP_CLIENT_VER2, RTMP_CLIENT_VER3, RTMP_CLIENT_VER4);
+ if (rt->is_input) {
+ snprintf(ver, sizeof(ver), "%s %d,%d,%d,%d", RTMP_CLIENT_PLATFORM, RTMP_CLIENT_VER1,
+ RTMP_CLIENT_VER2, RTMP_CLIENT_VER3, RTMP_CLIENT_VER4);
+ } else {
+ snprintf(ver, sizeof(ver), "FMLE/3.0 (compatible; %s)", LIBAVFORMAT_IDENT);
+ ff_amf_write_field_name(&p, "type");
+ ff_amf_write_string(&p, "nonprivate");
+ }
ff_amf_write_field_name(&p, "flashVer");
ff_amf_write_string(&p, ver);
ff_amf_write_field_name(&p, "tcUrl");
ff_amf_write_string(&p, tcurl);
- ff_amf_write_field_name(&p, "fpad");
- ff_amf_write_bool(&p, 0);
- ff_amf_write_field_name(&p, "capabilities");
- ff_amf_write_number(&p, 15.0);
- ff_amf_write_field_name(&p, "audioCodecs");
- ff_amf_write_number(&p, 1639.0);
- ff_amf_write_field_name(&p, "videoCodecs");
- ff_amf_write_number(&p, 252.0);
- ff_amf_write_field_name(&p, "videoFunction");
- ff_amf_write_number(&p, 1.0);
+ if (rt->is_input) {
+ ff_amf_write_field_name(&p, "fpad");
+ ff_amf_write_bool(&p, 0);
+ ff_amf_write_field_name(&p, "capabilities");
+ ff_amf_write_number(&p, 15.0);
+ ff_amf_write_field_name(&p, "audioCodecs");
+ ff_amf_write_number(&p, 1639.0);
+ ff_amf_write_field_name(&p, "videoCodecs");
+ ff_amf_write_number(&p, 252.0);
+ ff_amf_write_field_name(&p, "videoFunction");
+ ff_amf_write_number(&p, 1.0);
+ }
ff_amf_write_object_end(&p);
pkt.data_size = p - pkt.data;
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
+/**
+ * Generates 'releaseStream' call and sends it to the server. It should make
+ * the server release some channel for media streams.
+ */
+static void gen_release_stream(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0,
+ 29 + strlen(rt->playpath));
+
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Releasing stream...\n");
+ p = pkt.data;
+ ff_amf_write_string(&p, "releaseStream");
+ ff_amf_write_number(&p, 2.0);
+ ff_amf_write_null(&p);
+ ff_amf_write_string(&p, rt->playpath);
+
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
+/**
+ * Generates 'FCPublish' call and sends it to the server. It should make
+ * the server preapare for receiving media streams.
+ */
+static void gen_fcpublish_stream(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0,
+ 25 + strlen(rt->playpath));
+
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "FCPublish stream...\n");
+ p = pkt.data;
+ ff_amf_write_string(&p, "FCPublish");
+ ff_amf_write_number(&p, 3.0);
+ ff_amf_write_null(&p);
+ ff_amf_write_string(&p, rt->playpath);
+
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
+/**
+ * Generates 'FCUnpublish' call and sends it to the server. It should make
+ * the server destroy stream.
+ */
+static void gen_fcunpublish_stream(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0,
+ 27 + strlen(rt->playpath));
+
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "UnPublishing stream...\n");
+ p = pkt.data;
+ ff_amf_write_string(&p, "FCUnpublish");
+ ff_amf_write_number(&p, 5.0);
+ ff_amf_write_null(&p);
+ ff_amf_write_string(&p, rt->playpath);
+
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
}
/**
p = pkt.data;
ff_amf_write_string(&p, "createStream");
- ff_amf_write_number(&p, 3.0);
+ ff_amf_write_number(&p, rt->is_input ? 3.0 : 4.0);
+ ff_amf_write_null(&p);
+
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
+
+/**
+ * Generates 'deleteStream' call and sends it to the server. It should make
+ * the server remove some channel for media streams.
+ */
+static void gen_delete_stream(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Deleting stream...\n");
+ ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 34);
+
+ p = pkt.data;
+ ff_amf_write_string(&p, "deleteStream");
+ ff_amf_write_number(&p, 0.0);
ff_amf_write_null(&p);
+ ff_amf_write_number(&p, rt->main_channel_id);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
ff_rtmp_packet_destroy(&pkt);
}
+/**
+ * Generates 'publish' call and sends it to the server.
+ */
+static void gen_publish(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Sending publish command for '%s'\n", rt->playpath);
+ ff_rtmp_packet_create(&pkt, RTMP_SOURCE_CHANNEL, RTMP_PT_INVOKE, 0,
+ 30 + strlen(rt->playpath));
+ pkt.extra = rt->main_channel_id;
+
+ p = pkt.data;
+ ff_amf_write_string(&p, "publish");
+ ff_amf_write_number(&p, 0.0);
+ ff_amf_write_null(&p);
+ ff_amf_write_string(&p, rt->playpath);
+ ff_amf_write_string(&p, "live");
+
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
/**
* Generates ping reply and sends it to the server.
*/
ff_rtmp_packet_create(&pkt, RTMP_NETWORK_CHANNEL, RTMP_PT_PING, ppkt->timestamp + 1, 6);
p = pkt.data;
bytestream_put_be16(&p, 7);
- bytestream_put_be32(&p, AV_RB32(ppkt->data+2) + 1);
+ bytestream_put_be32(&p, AV_RB32(ppkt->data+2));
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
}
av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Server version %d.%d.%d.%d\n",
serverdata[5], serverdata[6], serverdata[7], serverdata[8]);
- server_pos = rtmp_validate_digest(serverdata + 1, 772);
- if (!server_pos) {
- server_pos = rtmp_validate_digest(serverdata + 1, 8);
+ if (rt->is_input) {
+ server_pos = rtmp_validate_digest(serverdata + 1, 772);
if (!server_pos) {
- av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server response validating failed\n");
+ server_pos = rtmp_validate_digest(serverdata + 1, 8);
+ if (!server_pos) {
+ av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server response validating failed\n");
+ return -1;
+ }
+ }
+
+ rtmp_calc_digest(tosend + 1 + client_pos, 32, 0,
+ rtmp_server_key, sizeof(rtmp_server_key),
+ digest);
+ rtmp_calc_digest(clientdata, RTMP_HANDSHAKE_PACKET_SIZE-32, 0,
+ digest, 32,
+ digest);
+ if (memcmp(digest, clientdata + RTMP_HANDSHAKE_PACKET_SIZE - 32, 32)) {
+ av_log(LOG_CONTEXT, AV_LOG_ERROR, "Signature mismatch\n");
return -1;
}
- }
- rtmp_calc_digest(tosend + 1 + client_pos, 32, 0,
- rtmp_server_key, sizeof(rtmp_server_key),
- digest);
- rtmp_calc_digest(clientdata, RTMP_HANDSHAKE_PACKET_SIZE-32, 0,
- digest, 32,
- digest);
- if (memcmp(digest, clientdata + RTMP_HANDSHAKE_PACKET_SIZE - 32, 32)) {
- av_log(LOG_CONTEXT, AV_LOG_ERROR, "Signature mismatch\n");
- return -1;
+ for (i = 0; i < RTMP_HANDSHAKE_PACKET_SIZE; i++)
+ tosend[i] = av_lfg_get(&rnd) >> 24;
+ rtmp_calc_digest(serverdata + 1 + server_pos, 32, 0,
+ rtmp_player_key, sizeof(rtmp_player_key),
+ digest);
+ rtmp_calc_digest(tosend, RTMP_HANDSHAKE_PACKET_SIZE - 32, 0,
+ digest, 32,
+ tosend + RTMP_HANDSHAKE_PACKET_SIZE - 32);
+
+ // write reply back to the server
+ url_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE);
+ } else {
+ url_write(rt->stream, serverdata+1, RTMP_HANDSHAKE_PACKET_SIZE);
}
- for (i = 0; i < RTMP_HANDSHAKE_PACKET_SIZE; i++)
- tosend[i] = av_lfg_get(&rnd) >> 24;
- rtmp_calc_digest(serverdata + 1 + server_pos, 32, 0,
- rtmp_player_key, sizeof(rtmp_player_key),
- digest);
- rtmp_calc_digest(tosend, RTMP_HANDSHAKE_PACKET_SIZE - 32, 0,
- digest, 32,
- tosend + RTMP_HANDSHAKE_PACKET_SIZE - 32);
-
- // write reply back to the server
- url_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE);
return 0;
}
int i, t;
const uint8_t *data_end = pkt->data + pkt->data_size;
+#ifdef DEBUG
+ ff_rtmp_packet_dump(LOG_CONTEXT, pkt);
+#endif
+
switch (pkt->type) {
case RTMP_PT_CHUNK_SIZE:
if (pkt->data_size != 4) {
"Chunk size change packet is not 4 bytes long (%d)\n", pkt->data_size);
return -1;
}
+ if (!rt->is_input)
+ ff_rtmp_packet_write(rt->stream, pkt, rt->chunk_size, rt->prev_pkt[1]);
rt->chunk_size = AV_RB32(pkt->data);
if (rt->chunk_size <= 0) {
av_log(LOG_CONTEXT, AV_LOG_ERROR, "Incorrect chunk size %d\n", rt->chunk_size);
} else if (!memcmp(pkt->data, "\002\000\007_result", 10)) {
switch (rt->state) {
case STATE_HANDSHAKED:
+ if (!rt->is_input) {
+ gen_release_stream(s, rt);
+ gen_fcpublish_stream(s, rt);
+ rt->state = STATE_RELEASING;
+ } else {
+ rt->state = STATE_CONNECTING;
+ }
gen_create_stream(s, rt);
+ break;
+ case STATE_FCPUBLISH:
rt->state = STATE_CONNECTING;
break;
+ case STATE_RELEASING:
+ rt->state = STATE_FCPUBLISH;
+ /* hack for Wowza Media Server, it does not send result for
+ * releaseStream and FCPublish calls */
+ if (!pkt->data[10]) {
+ int pkt_id = (int) av_int2dbl(AV_RB64(pkt->data + 11));
+ if (pkt_id == 4)
+ rt->state = STATE_CONNECTING;
+ }
+ if (rt->state != STATE_CONNECTING)
+ break;
case STATE_CONNECTING:
//extract a number from the result
if (pkt->data[10] || pkt->data[19] != 5 || pkt->data[20]) {
} else {
rt->main_channel_id = (int) av_int2dbl(AV_RB64(pkt->data + 21));
}
- gen_play(s, rt);
+ if (rt->is_input) {
+ gen_play(s, rt);
+ } else {
+ gen_publish(s, rt);
+ }
rt->state = STATE_READY;
break;
}
}
t = ff_amf_get_field_value(ptr, data_end,
"code", tmpstr, sizeof(tmpstr));
- if (!t && !strcmp(tmpstr, "NetStream.Play.Start")) {
- rt->state = STATE_PLAYING;
- return 0;
- }
+ if (!t && !strcmp(tmpstr, "NetStream.Play.Start")) rt->state = STATE_PLAYING;
+ if (!t && !strcmp(tmpstr, "NetStream.Play.Stop")) rt->state = STATE_STOPPED;
+ if (!t && !strcmp(tmpstr, "NetStream.Play.UnpublishNotify")) rt->state = STATE_STOPPED;
+ if (!t && !strcmp(tmpstr, "NetStream.Publish.Start")) rt->state = STATE_PUBLISHING;
}
break;
}
RTMPContext *rt = s->priv_data;
int ret;
- for(;;) {
+ if (rt->state == STATE_STOPPED)
+ return AVERROR_EOF;
+
+ for (;;) {
RTMPPacket rpkt;
if ((ret = ff_rtmp_packet_read(rt->stream, &rpkt,
rt->chunk_size, rt->prev_pkt[0])) != 0) {
ff_rtmp_packet_destroy(&rpkt);
return -1;
}
- if (for_header && rt->state == STATE_PLAYING) {
+ if (rt->state == STATE_STOPPED) {
+ ff_rtmp_packet_destroy(&rpkt);
+ return AVERROR_EOF;
+ }
+ if (for_header && (rt->state == STATE_PLAYING || rt->state == STATE_PUBLISHING)) {
ff_rtmp_packet_destroy(&rpkt);
return 0;
}
- if (!rpkt.data_size) {
+ if (!rpkt.data_size || !rt->is_input) {
ff_rtmp_packet_destroy(&rpkt);
continue;
}
{
RTMPContext *rt = h->priv_data;
+ if (!rt->is_input) {
+ rt->flv_data = NULL;
+ if (rt->out_pkt.data_size)
+ ff_rtmp_packet_destroy(&rt->out_pkt);
+ if (rt->state > STATE_FCPUBLISH)
+ gen_fcunpublish_stream(h, rt);
+ }
+ if (rt->state > STATE_HANDSHAKED)
+ gen_delete_stream(h, rt);
+
av_freep(&rt->flv_data);
url_close(rt->stream);
av_free(rt);
goto fail;
}
- if (!rt->is_input) {
- av_log(LOG_CONTEXT, AV_LOG_ERROR, "RTMP output is not supported yet.\n");
- goto fail;
- } else {
- rt->state = STATE_START;
- if (rtmp_handshake(s, rt))
- return -1;
+ rt->state = STATE_START;
+ if (rtmp_handshake(s, rt))
+ return -1;
- rt->chunk_size = 128;
- rt->state = STATE_HANDSHAKED;
- //extract "app" part from path
- if (!strncmp(path, "/ondemand/", 10)) {
- fname = path + 10;
- memcpy(rt->app, "ondemand", 9);
+ rt->chunk_size = 128;
+ rt->state = STATE_HANDSHAKED;
+ //extract "app" part from path
+ if (!strncmp(path, "/ondemand/", 10)) {
+ fname = path + 10;
+ memcpy(rt->app, "ondemand", 9);
+ } else {
+ char *p = strchr(path + 1, '/');
+ if (!p) {
+ fname = path + 1;
+ rt->app[0] = '\0';
} else {
- char *p = strchr(path + 1, '/');
- if (!p) {
- fname = path + 1;
- rt->app[0] = '\0';
+ char *c = strchr(p + 1, ':');
+ fname = strchr(p + 1, '/');
+ if (!fname || c < fname) {
+ fname = p + 1;
+ av_strlcpy(rt->app, path + 1, p - path);
} else {
- char *c = strchr(p + 1, ':');
- fname = strchr(p + 1, '/');
- if (!fname || c < fname) {
- fname = p + 1;
- av_strlcpy(rt->app, path + 1, p - path);
- } else {
- fname++;
- av_strlcpy(rt->app, path + 1, fname - path - 1);
- }
+ fname++;
+ av_strlcpy(rt->app, path + 1, fname - path - 1);
}
}
- if (!strchr(fname, ':') &&
- (!strcmp(fname + strlen(fname) - 4, ".f4v") ||
- !strcmp(fname + strlen(fname) - 4, ".mp4"))) {
- memcpy(rt->playpath, "mp4:", 5);
- } else {
- rt->playpath[0] = 0;
- }
- strncat(rt->playpath, fname, sizeof(rt->playpath) - 5);
+ }
+ if (!strchr(fname, ':') &&
+ (!strcmp(fname + strlen(fname) - 4, ".f4v") ||
+ !strcmp(fname + strlen(fname) - 4, ".mp4"))) {
+ memcpy(rt->playpath, "mp4:", 5);
+ } else {
+ rt->playpath[0] = 0;
+ }
+ strncat(rt->playpath, fname, sizeof(rt->playpath) - 5);
- av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Proto = %s, path = %s, app = %s, fname = %s\n",
- proto, path, rt->app, rt->playpath);
- gen_connect(s, rt, proto, hostname, port);
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Proto = %s, path = %s, app = %s, fname = %s\n",
+ proto, path, rt->app, rt->playpath);
+ gen_connect(s, rt, proto, hostname, port);
+
+ do {
+ ret = get_packet(s, 1);
+ } while (ret == EAGAIN);
+ if (ret < 0)
+ goto fail;
- do {
- ret = get_packet(s, 1);
- } while (ret == EAGAIN);
- if (ret < 0)
- goto fail;
+ if (rt->is_input) {
// generate FLV header for demuxer
rt->flv_size = 13;
rt->flv_data = av_realloc(rt->flv_data, rt->flv_size);
rt->flv_off = 0;
memcpy(rt->flv_data, "FLV\1\5\0\0\0\011\0\0\0\0", rt->flv_size);
+ } else {
+ rt->flv_size = 0;
+ rt->flv_data = NULL;
+ rt->flv_off = 0;
}
s->max_packet_size = url_get_max_packet_size(rt->stream);
static int rtmp_write(URLContext *h, uint8_t *buf, int size)
{
- return 0;
+ RTMPContext *rt = h->priv_data;
+ int size_temp = size;
+ int pktsize, pkttype;
+ uint32_t ts;
+ const uint8_t *buf_temp = buf;
+
+ if (size < 11) {
+ av_log(LOG_CONTEXT, AV_LOG_DEBUG, "FLV packet too small %d\n", size);
+ return 0;
+ }
+
+ do {
+ if (!rt->flv_off) {
+ //skip flv header
+ if (buf_temp[0] == 'F' && buf_temp[1] == 'L' && buf_temp[2] == 'V') {
+ buf_temp += 9 + 4;
+ size_temp -= 9 + 4;
+ }
+
+ pkttype = bytestream_get_byte(&buf_temp);
+ pktsize = bytestream_get_be24(&buf_temp);
+ ts = bytestream_get_be24(&buf_temp);
+ ts |= bytestream_get_byte(&buf_temp) << 24;
+ bytestream_get_be24(&buf_temp);
+ size_temp -= 11;
+ rt->flv_size = pktsize;
+
+ //force 12bytes header
+ if (((pkttype == RTMP_PT_VIDEO || pkttype == RTMP_PT_AUDIO) && ts == 0) ||
+ pkttype == RTMP_PT_NOTIFY) {
+ if (pkttype == RTMP_PT_NOTIFY)
+ pktsize += 16;
+ rt->prev_pkt[1][RTMP_SOURCE_CHANNEL].channel_id = 0;
+ }
+
+ //this can be a big packet, it's better to send it right here
+ ff_rtmp_packet_create(&rt->out_pkt, RTMP_SOURCE_CHANNEL, pkttype, ts, pktsize);
+ rt->out_pkt.extra = rt->main_channel_id;
+ rt->flv_data = rt->out_pkt.data;
+
+ if (pkttype == RTMP_PT_NOTIFY)
+ ff_amf_write_string(&rt->flv_data, "@setDataFrame");
+ }
+
+ if (rt->flv_size - rt->flv_off > size_temp) {
+ bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, size_temp);
+ rt->flv_off += size_temp;
+ } else {
+ bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, rt->flv_size - rt->flv_off);
+ rt->flv_off += rt->flv_size - rt->flv_off;
+ }
+
+ if (rt->flv_off == rt->flv_size) {
+ bytestream_get_be32(&buf_temp);
+
+ ff_rtmp_packet_write(rt->stream, &rt->out_pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&rt->out_pkt);
+ rt->flv_size = 0;
+ rt->flv_off = 0;
+ }
+ } while (buf_temp - buf < size_temp);
+ return size;
}
URLProtocol rtmp_protocol = {
projects / ffmpeg / blobdiff