#include "libavcodec/bytestream.h"
#include "libavutil/avstring.h"
-#include "libavutil/intfloat_readwrite.h"
+#include "libavutil/intfloat.h"
#include "libavutil/lfg.h"
+#include "libavutil/opt.h"
#include "libavutil/sha.h"
#include "avformat.h"
#include "internal.h"
//#define DEBUG
+#define APP_MAX_LENGTH 128
+#define PLAYPATH_MAX_LENGTH 256
+#define TCURL_MAX_LENGTH 512
+#define FLASHVER_MAX_LENGTH 64
+
/** RTMP protocol handler state */
typedef enum {
STATE_START, ///< client has not done anything yet
/** protocol handler context */
typedef struct RTMPContext {
+ const AVClass *class;
URLContext* stream; ///< TCP stream used in interactions with RTMP server
RTMPPacket prev_pkt[2][RTMP_CHANNELS]; ///< packet history used when reading and sending packets
int chunk_size; ///< size of the chunks RTMP packets are divided into
int is_input; ///< input/output flag
- char playpath[256]; ///< path to filename to play (with possible "mp4:" prefix)
- char app[128]; ///< application
+ char *playpath; ///< stream identifier to play (with possible "mp4:" prefix)
+ int live; ///< 0: recorded, -1: live, -2: both
+ char *app; ///< name of application
ClientState state; ///< current state
int main_channel_id; ///< an additional channel ID which is used for some invocations
uint8_t* flv_data; ///< buffer with data for demuxer
uint8_t flv_header[11]; ///< partial incoming flv packet header
int flv_header_bytes; ///< number of initialized bytes in flv_header
int nb_invokes; ///< keeps track of invoke messages
+ int create_stream_invoke; ///< invoke id for the create stream command
+ char* tcurl; ///< url of the target stream
+ char* flashver; ///< version of the flash plugin
+ char* swfurl; ///< url of the swf player
} RTMPContext;
#define PLAYER_KEY_OPEN_PART_LEN 30 ///< length of partial key used for first client digest signing
/**
* Generate 'connect' call and send it to the server.
*/
-static void gen_connect(URLContext *s, RTMPContext *rt, const char *proto,
- const char *host, int port)
+static void gen_connect(URLContext *s, RTMPContext *rt)
{
RTMPPacket pkt;
- uint8_t ver[64], *p;
- char tcurl[512];
+ uint8_t *p;
ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 4096);
p = pkt.data;
- ff_url_join(tcurl, sizeof(tcurl), proto, NULL, host, port, "/%s", rt->app);
ff_amf_write_string(&p, "connect");
- ff_amf_write_number(&p, 1.0);
+ ff_amf_write_number(&p, ++rt->nb_invokes);
ff_amf_write_object_start(&p);
ff_amf_write_field_name(&p, "app");
ff_amf_write_string(&p, rt->app);
- 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);
+ if (!rt->is_input) {
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_string(&p, rt->flashver);
+
+ if (rt->swfurl) {
+ ff_amf_write_field_name(&p, "swfUrl");
+ ff_amf_write_string(&p, rt->swfurl);
+ }
+
ff_amf_write_field_name(&p, "tcUrl");
- ff_amf_write_string(&p, tcurl);
+ ff_amf_write_string(&p, rt->tcurl);
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);
+
+ /* Tell the server we support all the audio codecs except
+ * SUPPORT_SND_INTEL (0x0008) and SUPPORT_SND_UNUSED (0x0010)
+ * which are unused in the RTMP protocol implementation. */
ff_amf_write_field_name(&p, "audioCodecs");
- ff_amf_write_number(&p, 1639.0);
+ ff_amf_write_number(&p, 4071.0);
ff_amf_write_field_name(&p, "videoCodecs");
ff_amf_write_number(&p, 252.0);
ff_amf_write_field_name(&p, "videoFunction");
ff_amf_write_string(&p, "createStream");
ff_amf_write_number(&p, ++rt->nb_invokes);
ff_amf_write_null(&p);
+ rt->create_stream_invoke = rt->nb_invokes;
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, "deleteStream");
- ff_amf_write_number(&p, 0.0);
+ ff_amf_write_number(&p, ++rt->nb_invokes);
ff_amf_write_null(&p);
ff_amf_write_number(&p, rt->main_channel_id);
av_log(s, AV_LOG_DEBUG, "Sending play command for '%s'\n", rt->playpath);
ff_rtmp_packet_create(&pkt, RTMP_VIDEO_CHANNEL, RTMP_PT_INVOKE, 0,
- 20 + strlen(rt->playpath));
+ 29 + strlen(rt->playpath));
pkt.extra = rt->main_channel_id;
p = pkt.data;
ff_amf_write_string(&p, "play");
- ff_amf_write_number(&p, 0.0);
+ ff_amf_write_number(&p, ++rt->nb_invokes);
ff_amf_write_null(&p);
ff_amf_write_string(&p, rt->playpath);
+ ff_amf_write_number(&p, rt->live);
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, "publish");
- ff_amf_write_number(&p, 0.0);
+ ff_amf_write_number(&p, ++rt->nb_invokes);
ff_amf_write_null(&p);
ff_amf_write_string(&p, rt->playpath);
ff_amf_write_string(&p, "live");
ff_rtmp_packet_destroy(&pkt);
}
+/**
+ * Generate server bandwidth message and send it to the server.
+ */
+static void gen_server_bw(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ ff_rtmp_packet_create(&pkt, RTMP_NETWORK_CHANNEL, RTMP_PT_SERVER_BW, 0, 4);
+ p = pkt.data;
+ bytestream_put_be32(&p, 2500000);
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
+/**
+ * Generate check bandwidth message and send it to the server.
+ */
+static void gen_check_bw(URLContext *s, RTMPContext *rt)
+{
+ RTMPPacket pkt;
+ uint8_t *p;
+
+ ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 21);
+
+ p = pkt.data;
+ ff_amf_write_string(&p, "_checkbw");
+ ff_amf_write_number(&p, ++rt->nb_invokes);
+ ff_amf_write_null(&p);
+
+ ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
+ ff_rtmp_packet_destroy(&pkt);
+}
+
/**
* Generate report on bytes read so far and send it to the server.
*/
gen_fcpublish_stream(s, rt);
rt->state = STATE_RELEASING;
} else {
+ gen_server_bw(s, rt);
rt->state = STATE_CONNECTING;
}
gen_create_stream(s, rt);
/* 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)
+ int pkt_id = av_int2double(AV_RB64(pkt->data + 11));
+ if (pkt_id == rt->create_stream_invoke)
rt->state = STATE_CONNECTING;
}
if (rt->state != STATE_CONNECTING)
if (pkt->data[10] || pkt->data[19] != 5 || pkt->data[20]) {
av_log(s, AV_LOG_WARNING, "Unexpected reply on connect()\n");
} else {
- rt->main_channel_id = (int) av_int2dbl(AV_RB64(pkt->data + 21));
+ rt->main_channel_id = av_int2double(AV_RB64(pkt->data + 21));
}
if (rt->is_input) {
gen_play(s, rt);
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;
+ } else if (!memcmp(pkt->data, "\002\000\010onBWDone", 11)) {
+ gen_check_bw(s, rt);
}
break;
}
av_freep(&rt->flv_data);
ffurl_close(rt->stream);
- av_free(rt);
return 0;
}
*/
static int rtmp_open(URLContext *s, const char *uri, int flags)
{
- RTMPContext *rt;
+ RTMPContext *rt = s->priv_data;
char proto[8], hostname[256], path[1024], *fname;
+ char *old_app;
uint8_t buf[2048];
int port;
int ret;
- rt = av_mallocz(sizeof(RTMPContext));
- if (!rt)
- return AVERROR(ENOMEM);
- s->priv_data = rt;
rt->is_input = !(flags & AVIO_FLAG_WRITE);
av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port,
rt->state = STATE_START;
if (rtmp_handshake(s, rt))
- return -1;
+ goto fail;
rt->chunk_size = 128;
rt->state = STATE_HANDSHAKED;
+
+ // Keep the application name when it has been defined by the user.
+ old_app = rt->app;
+
+ rt->app = av_malloc(APP_MAX_LENGTH);
+ if (!rt->app) {
+ rtmp_close(s);
+ return AVERROR(ENOMEM);
+ }
+
//extract "app" part from path
if (!strncmp(path, "/ondemand/", 10)) {
fname = path + 10;
}
}
}
- 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;
+
+ if (old_app) {
+ // The name of application has been defined by the user, override it.
+ av_free(rt->app);
+ rt->app = old_app;
+ }
+
+ if (!rt->playpath) {
+ rt->playpath = av_malloc(PLAYPATH_MAX_LENGTH);
+ if (!rt->playpath) {
+ rtmp_close(s);
+ return AVERROR(ENOMEM);
+ }
+
+ 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, PLAYPATH_MAX_LENGTH - 5);
+ }
+
+ if (!rt->tcurl) {
+ rt->tcurl = av_malloc(TCURL_MAX_LENGTH);
+ ff_url_join(rt->tcurl, TCURL_MAX_LENGTH, proto, NULL, hostname,
+ port, "/%s", rt->app);
+ }
+
+ if (!rt->flashver) {
+ rt->flashver = av_malloc(FLASHVER_MAX_LENGTH);
+ if (rt->is_input) {
+ snprintf(rt->flashver, FLASHVER_MAX_LENGTH, "%s %d,%d,%d,%d",
+ RTMP_CLIENT_PLATFORM, RTMP_CLIENT_VER1, RTMP_CLIENT_VER2,
+ RTMP_CLIENT_VER3, RTMP_CLIENT_VER4);
+ } else {
+ snprintf(rt->flashver, FLASHVER_MAX_LENGTH,
+ "FMLE/3.0 (compatible; %s)", LIBAVFORMAT_IDENT);
+ }
}
- strncat(rt->playpath, fname, sizeof(rt->playpath) - 5);
rt->client_report_size = 1048576;
rt->bytes_read = 0;
av_log(s, 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);
+ gen_connect(s, rt);
do {
ret = get_packet(s, 1);
return size;
}
+#define OFFSET(x) offsetof(RTMPContext, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+#define ENC AV_OPT_FLAG_ENCODING_PARAM
+
+static const AVOption rtmp_options[] = {
+ {"rtmp_app", "Name of application to connect to on the RTMP server", OFFSET(app), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
+ {"rtmp_flashver", "Version of the Flash plugin used to run the SWF player.", OFFSET(flashver), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
+ {"rtmp_live", "Specify that the media is a live stream.", OFFSET(live), AV_OPT_TYPE_INT, {-2}, INT_MIN, INT_MAX, DEC, "rtmp_live"},
+ {"any", "both", 0, AV_OPT_TYPE_CONST, {-2}, 0, 0, DEC, "rtmp_live"},
+ {"live", "live stream", 0, AV_OPT_TYPE_CONST, {-1}, 0, 0, DEC, "rtmp_live"},
+ {"recorded", "recorded stream", 0, AV_OPT_TYPE_CONST, {0}, 0, 0, DEC, "rtmp_live"},
+ {"rtmp_playpath", "Stream identifier to play or to publish", OFFSET(playpath), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
+ {"rtmp_swfurl", "URL of the SWF player. By default no value will be sent", OFFSET(swfurl), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
+ {"rtmp_tcurl", "URL of the target stream. Defaults to rtmp://host[:port]/app.", OFFSET(tcurl), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
+ { NULL },
+};
+
+static const AVClass rtmp_class = {
+ .class_name = "rtmp",
+ .item_name = av_default_item_name,
+ .option = rtmp_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
URLProtocol ff_rtmp_protocol = {
- .name = "rtmp",
- .url_open = rtmp_open,
- .url_read = rtmp_read,
- .url_write = rtmp_write,
- .url_close = rtmp_close,
+ .name = "rtmp",
+ .url_open = rtmp_open,
+ .url_read = rtmp_read,
+ .url_write = rtmp_write,
+ .url_close = rtmp_close,
+ .priv_data_size = sizeof(RTMPContext),
+ .flags = URL_PROTOCOL_FLAG_NETWORK,
+ .priv_data_class= &rtmp_class,
};
projects / ffmpeg / blobdiff