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Re-indent to more closely follow general coding standards used in other

Browse Source 
parts of FFmpeg. Also change a starting condition; while (condition) {
... bla = bla->next; } loop into a proper for() loop.

Originally committed as revision 21071 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2010-01-07 22:41:14 +00:00
parent 59043195d4
commit c896580087
1 changed files with 238 additions and 220 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

458
libavformat/rtsp.c
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@ -91,9 +91,9 @@ static void get_word(char *buf, int buf_size, const char **pp)
get_word_until_chars(buf, buf_size, SPACE_CHARS, pp);
}
/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other
params>] */
static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st, int payload_type, const char *p)
/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other params>] */
static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st,
int payload_type, const char *p)
{
char buf[256];
int i;
@ -101,23 +101,24 @@ static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st, int payl
const char *c_name;
/* Loop into AVRtpDynamicPayloadTypes[] and AVRtpPayloadTypes[] and
see if we can handle this kind of payload */
* see if we can handle this kind of payload. */
get_word_sep(buf, sizeof(buf), "/", &p);
if (payload_type >= RTP_PT_PRIVATE) {
RTPDynamicProtocolHandler *handler= RTPFirstDynamicPayloadHandler;
while(handler) {
if (!strcasecmp(buf, handler->enc_name) && (codec->codec_type == handler->codec_type)) {
codec->codec_id = handler->codec_id;
rtsp_st->dynamic_handler= handler;
if(handler->open) {
rtsp_st->dynamic_protocol_context= handler->open();
}
RTPDynamicProtocolHandler *handler;
for (handler = RTPFirstDynamicPayloadHandler;
handler; handler = handler->next) {
if (!strcasecmp(buf, handler->enc_name) &&
codec->codec_type == handler->codec_type) {
codec->codec_id = handler->codec_id;
rtsp_st->dynamic_handler = handler;
if (handler->open)
rtsp_st->dynamic_protocol_context = handler->open();
break;
}
handler= handler->next;
}
} else {
/* We are in a standard case ( from http://www.iana.org/assignments/rtp-parameters) */
/* We are in a standard case
* (from http://www.iana.org/assignments/rtp-parameters). */
/* search into AVRtpPayloadTypes[] */
codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
}
@ -126,33 +127,37 @@ static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st, int payl
if (c && c->name)
c_name = c->name;
else
c_name = (char *)NULL;
c_name = (char *) NULL;
if (c_name) {
get_word_sep(buf, sizeof(buf), "/", &p);
i = atoi(buf);
switch (codec->codec_type) {
case CODEC_TYPE_AUDIO:
av_log(codec, AV_LOG_DEBUG, " audio codec set to : %s\n", c_name);
codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
if (i > 0) {
codec->sample_rate = i;
get_word_sep(buf, sizeof(buf), "/", &p);
i = atoi(buf);
if (i > 0)
codec->channels = i;
// TODO: there is a bug here; if it is a mono stream, and less than 22000Hz, faad upconverts to stereo and twice the
// frequency. No problem, but the sample rate is being set here by the sdp line. Upcoming patch forthcoming. (rdm)
}
av_log(codec, AV_LOG_DEBUG, " audio samplerate set to : %i\n", codec->sample_rate);
av_log(codec, AV_LOG_DEBUG, " audio channels set to : %i\n", codec->channels);
break;
case CODEC_TYPE_VIDEO:
av_log(codec, AV_LOG_DEBUG, " video codec set to : %s\n", c_name);
break;
default:
break;
case CODEC_TYPE_AUDIO:
av_log(codec, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name);
codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
if (i > 0) {
codec->sample_rate = i;
get_word_sep(buf, sizeof(buf), "/", &p);
i = atoi(buf);
if (i > 0)
codec->channels = i;
// TODO: there is a bug here; if it is a mono stream, and
// less than 22000Hz, faad upconverts to stereo and twice
// the frequency. No problem, but the sample rate is being
// set here by the sdp line. Patch on its way. (rdm)
}
av_log(codec, AV_LOG_DEBUG, "audio samplerate set to: %i\n",
codec->sample_rate);
av_log(codec, AV_LOG_DEBUG, "audio channels set to: %i\n",
codec->channels);
break;
case CODEC_TYPE_VIDEO:
av_log(codec, AV_LOG_DEBUG, "video codec set to: %s\n", c_name);
break;
default:
break;
}
return 0;
}
@ -160,18 +165,18 @@ static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st, int payl
return -1;
}
/* return the length and optionnaly the data */
/* return the length and optionally the data */
static int hex_to_data(uint8_t *data, const char *p)
{
int c, len, v;
len = 0;
v = 1;
for(;;) {
for (;;) {
skip_spaces(&p);
if (*p == '\0')
break;
c = toupper((unsigned char)*p++);
c = toupper((unsigned char) *p++);
if (c >= '0' && c <= '9')
c = c - '0';
else if (c >= 'A' && c <= 'F')
@ -193,33 +198,33 @@ static void sdp_parse_fmtp_config(AVCodecContext * codec, void *ctx,
char *attr, char *value)
{
switch (codec->codec_id) {
case CODEC_ID_MPEG4:
case CODEC_ID_AAC:
if (!strcmp(attr, "config")) {
/* decode the hexa encoded parameter */
int len = hex_to_data(NULL, value);
if (codec->extradata)
av_free(codec->extradata);
codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
if (!codec->extradata)
return;
codec->extradata_size = len;
hex_to_data(codec->extradata, value);
}
break;
case CODEC_ID_VORBIS:
ff_vorbis_parse_fmtp_config(codec, ctx, attr, value);
break;
default:
break;
case CODEC_ID_MPEG4:
case CODEC_ID_AAC:
if (!strcmp(attr, "config")) {
/* decode the hexa encoded parameter */
int len = hex_to_data(NULL, value);
if (codec->extradata)
av_free(codec->extradata);
codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
if (!codec->extradata)
return;
codec->extradata_size = len;
hex_to_data(codec->extradata, value);
}
break;
case CODEC_ID_VORBIS:
ff_vorbis_parse_fmtp_config(codec, ctx, attr, value);
break;
default:
break;
}
return;
}
typedef struct {
const char *str;
uint16_t type;
uint32_t offset;
uint16_t type;
uint32_t offset;
} AttrNameMap;
/* All known fmtp parmeters and the corresping RTPAttrTypeEnum */
@ -227,22 +232,29 @@ typedef struct {
#define ATTR_NAME_TYPE_STR 1
static const AttrNameMap attr_names[]=
{
{"SizeLength", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, sizelength)},
{"IndexLength", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, indexlength)},
{"IndexDeltaLength", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, indexdeltalength)},
{"profile-level-id", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, profile_level_id)},
{"StreamType", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, streamtype)},
{"mode", ATTR_NAME_TYPE_STR, offsetof(RTPPayloadData, mode)},
{NULL, -1, -1},
{ "SizeLength", ATTR_NAME_TYPE_INT,
offsetof(RTPPayloadData, sizelength) },
{ "IndexLength", ATTR_NAME_TYPE_INT,
offsetof(RTPPayloadData, indexlength) },
{ "IndexDeltaLength", ATTR_NAME_TYPE_INT,
offsetof(RTPPayloadData, indexdeltalength) },
{ "profile-level-id", ATTR_NAME_TYPE_INT,
offsetof(RTPPayloadData, profile_level_id) },
{ "StreamType", ATTR_NAME_TYPE_INT,
offsetof(RTPPayloadData, streamtype) },
{ "mode", ATTR_NAME_TYPE_STR,
offsetof(RTPPayloadData, mode) },
{ NULL, -1, -1 },
};
/** parse the attribute line from the fmtp a line of an sdp resonse. This is broken out as a function
* because it is used in rtp_h264.c, which is forthcoming.
*/
int rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, char *value, int value_size)
/* parse the attribute line from the fmtp a line of an sdp resonse. This
* is broken out as a function because it is used in rtp_h264.c, which is
* forthcoming. */
int rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
char *value, int value_size)
{
skip_spaces(p);
if(**p) {
if (**p) {
get_word_sep(attr, attr_size, "=", p);
if (**p == '=')
(*p)++;
@ -262,24 +274,26 @@ static void sdp_parse_fmtp(AVStream *st, const char *p)
* encoded, giving a 12KB * (4/3) = 16KB FMTP line. */
char value[16384];
int i;
RTSPStream *rtsp_st = st->priv_data;
AVCodecContext *codec = st->codec;
RTPPayloadData *rtp_payload_data = &rtsp_st->rtp_payload_data;
/* loop on each attribute */
while(rtsp_next_attr_and_value(&p, attr, sizeof(attr), value, sizeof(value)))
{
/* grab the codec extra_data from the config parameter of the fmtp line */
while (rtsp_next_attr_and_value(&p, attr, sizeof(attr),
value, sizeof(value))) {
/* grab the codec extra_data from the config parameter of the fmtp
* line */
sdp_parse_fmtp_config(codec, rtsp_st->dynamic_protocol_context,
attr, value);
/* Looking for a known attribute */
for (i = 0; attr_names[i].str; ++i) {
if (!strcasecmp(attr, attr_names[i].str)) {
if (attr_names[i].type == ATTR_NAME_TYPE_INT)
*(int *)((char *)rtp_payload_data + attr_names[i].offset) = atoi(value);
else if (attr_names[i].type == ATTR_NAME_TYPE_STR)
*(char **)((char *)rtp_payload_data + attr_names[i].offset) = av_strdup(value);
if (attr_names[i].type == ATTR_NAME_TYPE_INT) {
*(int *)((char *)rtp_payload_data +
attr_names[i].offset) = atoi(value);
} else if (attr_names[i].type == ATTR_NAME_TYPE_STR)
*(char **)((char *)rtp_payload_data +
attr_names[i].offset) = av_strdup(value);
}
}
}
@ -314,8 +328,8 @@ static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end)
typedef struct SDPParseState {
/* SDP only */
struct in_addr default_ip;
int default_ttl;
int skip_media; ///< set if an unknown m= line occurs
int default_ttl;
int skip_media; ///< set if an unknown m= line occurs
} SDPParseState;
static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
@ -336,7 +350,7 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
p = buf;
if (s1->skip_media && letter != 'm')
return;
switch(letter) {
switch (letter) {
case 'c':
get_word(buf1, sizeof(buf1), &p);
if (strcmp(buf1, "IN") != 0)
@ -419,7 +433,8 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
}
}
/* put a default control url */
av_strlcpy(rtsp_st->control_url, s->filename, sizeof(rtsp_st->control_url));
av_strlcpy(rtsp_st->control_url, s->filename,
sizeof(rtsp_st->control_url));
break;
case 'a':
if (av_strstart(p, "control:", &p) && s->nb_streams > 0) {
@ -429,14 +444,17 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
rtsp_st = st->priv_data;
/* XXX: may need to add full url resolution */
url_split(proto, sizeof(proto), NULL, 0, NULL, 0, NULL, NULL, 0, p);
url_split(proto, sizeof(proto), NULL, 0, NULL, 0,
NULL, NULL, 0, p);
if (proto[0] == '\0') {
/* relative control URL */
av_strlcat(rtsp_st->control_url, "/", sizeof(rtsp_st->control_url));
av_strlcat(rtsp_st->control_url, p, sizeof(rtsp_st->control_url));
} else {
av_strlcpy(rtsp_st->control_url, p, sizeof(rtsp_st->control_url));
}
av_strlcat(rtsp_st->control_url, "/",
sizeof(rtsp_st->control_url));
av_strlcat(rtsp_st->control_url, p,
sizeof(rtsp_st->control_url));
} else
av_strlcpy(rtsp_st->control_url, p,
sizeof(rtsp_st->control_url));
} else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) {
/* NOTE: rtpmap is only supported AFTER the 'm=' tag */
get_word(buf1, sizeof(buf1), &p);
@ -448,39 +466,39 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
/* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */
get_word(buf1, sizeof(buf1), &p);
payload_type = atoi(buf1);
for(i = 0; i < s->nb_streams;i++) {
st = s->streams[i];
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
rtsp_st = st->priv_data;
if (rtsp_st->sdp_payload_type == payload_type) {
if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) {
if(!rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, rtsp_st->dynamic_protocol_context, buf)) {
sdp_parse_fmtp(st, p);
}
} else {
if (!(rtsp_st->dynamic_handler &&
rtsp_st->dynamic_handler->parse_sdp_a_line &&
rtsp_st->dynamic_handler->parse_sdp_a_line(s,
i, rtsp_st->dynamic_protocol_context, buf)))
sdp_parse_fmtp(st, p);
}
}
}
} else if(av_strstart(p, "framesize:", &p)) {
} else if (av_strstart(p, "framesize:", &p)) {
// let dynamic protocol handlers have a stab at the line.
get_word(buf1, sizeof(buf1), &p);
payload_type = atoi(buf1);
for(i = 0; i < s->nb_streams;i++) {
st = s->streams[i];
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
rtsp_st = st->priv_data;
if (rtsp_st->sdp_payload_type == payload_type) {
if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) {
rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, rtsp_st->dynamic_protocol_context, buf);
}
}
if (rtsp_st->sdp_payload_type == payload_type &&
rtsp_st->dynamic_handler &&
rtsp_st->dynamic_handler->parse_sdp_a_line)
rtsp_st->dynamic_handler->parse_sdp_a_line(s, i,
rtsp_st->dynamic_protocol_context, buf);
}
} else if(av_strstart(p, "range:", &p)) {
} else if (av_strstart(p, "range:", &p)) {
int64_t start, end;
// this is so that seeking on a streamed file can work.
rtsp_parse_range_npt(p, &start, &end);
s->start_time= start;
s->duration= (end==AV_NOPTS_VALUE)?AV_NOPTS_VALUE:end-start; // AV_NOPTS_VALUE means live broadcast (and can't seek)
s->start_time = start;
/* AV_NOPTS_VALUE means live broadcast (and can't seek) */
s->duration = (end == AV_NOPTS_VALUE) ?
AV_NOPTS_VALUE : end - start;
} else if (av_strstart(p, "IsRealDataType:integer;",&p)) {
if (atoi(p) == 1)
rt->transport = RTSP_TRANSPORT_RDT;
@ -494,7 +512,8 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
rtsp_st = s->streams[s->nb_streams - 1]->priv_data;
if (rtsp_st->dynamic_handler &&
rtsp_st->dynamic_handler->parse_sdp_a_line)
rtsp_st->dynamic_handler->parse_sdp_a_line(s, s->nb_streams - 1,
rtsp_st->dynamic_handler->parse_sdp_a_line(s,
s->nb_streams - 1,
rtsp_st->dynamic_protocol_context, buf);
}
}
@ -518,7 +537,7 @@ static int sdp_parse(AVFormatContext *s, const char *content)
memset(s1, 0, sizeof(SDPParseState));
p = content;
for(;;) {
for (;;) {
skip_spaces(&p);
letter = *p;
if (letter == '\0')
@ -551,7 +570,7 @@ static void rtsp_close_streams(RTSPState *rt)
int i;
RTSPStream *rtsp_st;
for(i=0;i<rt->nb_rtsp_streams;i++) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtsp_st = rt->rtsp_streams[i];
if (rtsp_st) {
if (rtsp_st->transport_priv) {
@ -563,7 +582,8 @@ static void rtsp_close_streams(RTSPState *rt)
if (rtsp_st->rtp_handle)
url_close(rtsp_st->rtp_handle);
if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context)
rtsp_st->dynamic_handler->close(rtsp_st->dynamic_protocol_context);
rtsp_st->dynamic_handler->close(
rtsp_st->dynamic_protocol_context);
}
}
av_free(rt->rtsp_streams);
@ -574,8 +594,7 @@ static void rtsp_close_streams(RTSPState *rt)
av_freep(&rt->auth_b64);
}
static int
rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
static int rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
{
RTSPState *rt = s->priv_data;
AVStream *st = NULL;
@ -598,7 +617,7 @@ rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
if (!rtsp_st->transport_priv) {
return AVERROR(ENOMEM);
} else if (rt->transport != RTSP_TRANSPORT_RDT) {
if(rtsp_st->dynamic_handler) {
if (rtsp_st->dynamic_handler) {
rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv,
rtsp_st->dynamic_protocol_context,
rtsp_st->dynamic_handler);
@ -648,7 +667,7 @@ static void rtsp_parse_transport(RTSPMessageHeader *reply, const char *p)
reply->nb_transports = 0;
for(;;) {
for (;;) {
skip_spaces(&p);
if (*p == '\0')
break;
@ -819,9 +838,9 @@ static void rtsp_skip_packet(AVFormatContext *s)
* @returns 1 if a data packets is ready to be received, -1 on error,
* and 0 on success.
*/
static int
rtsp_read_reply (AVFormatContext *s, RTSPMessageHeader *reply,
unsigned char **content_ptr, int return_on_interleaved_data)
static int rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply,
unsigned char **content_ptr,
int return_on_interleaved_data)
{
RTSPState *rt = s->priv_data;
char buf[4096], buf1[1024], *q;
@ -834,9 +853,9 @@ rtsp_read_reply (AVFormatContext *s, RTSPMessageHeader *reply,
/* parse reply (XXX: use buffers) */
rt->last_reply[0] = '\0';
for(;;) {
for (;;) {
q = buf;
for(;;) {
for (;;) {
ret = url_read_complete(rt->rtsp_hd, &ch, 1);
#ifdef DEBUG_RTP_TCP
dprintf(s, "ret=%d c=%02x [%c]\n", ret, ch, ch);
@ -895,20 +914,20 @@ rtsp_read_reply (AVFormatContext *s, RTSPMessageHeader *reply,
/* EOS */
if (reply->notice == 2101 /* End-of-Stream Reached */ ||
reply->notice == 2104 /* Start-of-Stream Reached */ ||
reply->notice == 2306 /* Continuous Feed Terminated */)
reply->notice == 2306 /* Continuous Feed Terminated */) {
rt->state = RTSP_STATE_IDLE;
else if (reply->notice >= 4400 && reply->notice < 5500)
} else if (reply->notice >= 4400 && reply->notice < 5500) {
return AVERROR(EIO); /* data or server error */
else if (reply->notice == 2401 /* Ticket Expired */ ||
} else if (reply->notice == 2401 /* Ticket Expired */ ||
(reply->notice >= 5500 && reply->notice < 5600) /* end of term */ )
return AVERROR(EPERM);
return 0;
}
static void rtsp_send_cmd_async (AVFormatContext *s,
const char *cmd, RTSPMessageHeader *reply,
unsigned char **content_ptr)
static void rtsp_send_cmd_async(AVFormatContext *s,
const char *cmd, RTSPMessageHeader *reply,
unsigned char **content_ptr)
{
RTSPState *rt = s->priv_data;
char buf[4096], buf1[1024];
@ -933,9 +952,9 @@ static void rtsp_send_cmd_async (AVFormatContext *s,
rt->last_cmd_time = av_gettime();
}
static void rtsp_send_cmd (AVFormatContext *s,
const char *cmd, RTSPMessageHeader *reply,
unsigned char **content_ptr)
static void rtsp_send_cmd(AVFormatContext *s,
const char *cmd, RTSPMessageHeader *reply,
unsigned char **content_ptr)
{
rtsp_send_cmd_async(s, cmd, reply, content_ptr);
@ -945,9 +964,8 @@ static void rtsp_send_cmd (AVFormatContext *s,
/**
* @returns 0 on success, <0 on error, 1 if protocol is unavailable.
*/
static int
make_setup_request (AVFormatContext *s, const char *host, int port,
int lower_transport, const char *real_challenge)
static int make_setup_request(AVFormatContext *s, const char *host, int port,
int lower_transport, const char *real_challenge)
{
RTSPState *rt = s->priv_data;
int rtx, j, i, err, interleave = 0;
@ -966,9 +984,9 @@ make_setup_request (AVFormatContext *s, const char *host, int port,
/* for each stream, make the setup request */
/* XXX: we assume the same server is used for the control of each
RTSP stream */
* RTSP stream */
for(j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) {
for (j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) {
char transport[2048];
/**
@ -983,7 +1001,8 @@ make_setup_request (AVFormatContext *s, const char *host, int port,
for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) {
int len = strlen(rt->rtsp_streams[rtx]->control_url);
if (len >= 4 &&
!strcmp(rt->rtsp_streams[rtx]->control_url + len - 4, "/rtx"))
!strcmp(rt->rtsp_streams[rtx]->control_url + len - 4,
"/rtx"))
break;
}
if (rtx == rt->nb_rtsp_streams)
@ -1005,21 +1024,23 @@ make_setup_request (AVFormatContext *s, const char *host, int port,
/* first try in specified port range */
if (RTSP_RTP_PORT_MIN != 0) {
while(j <= RTSP_RTP_PORT_MAX) {
snprintf(buf, sizeof(buf), "rtp://%s?localport=%d", host, j);
j += 2; /* we will use two port by rtp stream (rtp and rtcp) */
if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0) {
while (j <= RTSP_RTP_PORT_MAX) {
snprintf(buf, sizeof(buf), "rtp://%s?localport=%d",
host, j);
/* we will use two ports per rtp stream (rtp and rtcp) */
j += 2;
if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0)
goto rtp_opened;
}
}
}
/* then try on any port
** if (url_open(&rtsp_st->rtp_handle, "rtp://", URL_RDONLY) < 0) {
** err = AVERROR_INVALIDDATA;
** goto fail;
** }
*/
#if 0
/* then try on any port */
if (url_open(&rtsp_st->rtp_handle, "rtp://", URL_RDONLY) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
#endif
rtp_opened:
port = rtp_get_local_port(rtsp_st->rtp_handle);
@ -1041,7 +1062,8 @@ make_setup_request (AVFormatContext *s, const char *host, int port,
* UDP. When trying to set it up for TCP streams, the server
* will return an error. Therefore, we skip those streams. */
if (rt->server_type == RTSP_SERVER_WMS &&
s->streams[rtsp_st->stream_index]->codec->codec_type == CODEC_TYPE_DATA)
s->streams[rtsp_st->stream_index]->codec->codec_type ==
CODEC_TYPE_DATA)
continue;
snprintf(transport, sizeof(transport) - 1,
"%s/TCP;", trans_pref);
@ -1108,44 +1130,42 @@ make_setup_request (AVFormatContext *s, const char *host, int port,
rtsp_st->interleaved_max = reply->transports[0].interleaved_max;
break;
case RTSP_LOWER_TRANSPORT_UDP:
{
char url[1024];
case RTSP_LOWER_TRANSPORT_UDP: {
char url[1024];
/* XXX: also use address if specified */
snprintf(url, sizeof(url), "rtp://%s:%d",
host, reply->transports[0].server_port_min);
if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&
rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
/* XXX: also use address if specified */
snprintf(url, sizeof(url), "rtp://%s:%d",
host, reply->transports[0].server_port_min);
if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&
rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
break;
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
{
char url[1024];
struct in_addr in;
int port, ttl;
}
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: {
char url[1024];
struct in_addr in;
int port, ttl;
if (reply->transports[0].destination) {
in.s_addr = htonl(reply->transports[0].destination);
port = reply->transports[0].port_min;
ttl = reply->transports[0].ttl;
} else {
in = rtsp_st->sdp_ip;
port = rtsp_st->sdp_port;
ttl = rtsp_st->sdp_ttl;
}
snprintf(url, sizeof(url), "rtp://%s:%d?ttl=%d",
inet_ntoa(in), port, ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
if (reply->transports[0].destination) {
in.s_addr = htonl(reply->transports[0].destination);
port = reply->transports[0].port_min;
ttl = reply->transports[0].ttl;
} else {
in = rtsp_st->sdp_ip;
port = rtsp_st->sdp_port;
ttl = rtsp_st->sdp_ttl;
}
snprintf(url, sizeof(url), "rtp://%s:%d?ttl=%d",
inet_ntoa(in), port, ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
break;
}
}
if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
goto fail;
@ -1160,7 +1180,7 @@ make_setup_request (AVFormatContext *s, const char *host, int port,
return 0;
fail:
for (i=0; i<rt->nb_rtsp_streams; i++) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
if (rt->rtsp_streams[i]->rtp_handle) {
url_close(rt->rtsp_streams[i]->rtp_handle);
rt->rtsp_streams[i]->rtp_handle = NULL;
@ -1210,7 +1230,7 @@ static int rtsp_read_header(AVFormatContext *s,
unsigned char *content = NULL;
int lower_transport_mask = 0;
char real_challenge[64];
redirect:
redirect:
/* extract hostname and port */
url_split(NULL, 0, auth, sizeof(auth),
host, sizeof(host), &port, path, sizeof(path), s->filename);
@ -1231,7 +1251,7 @@ static int rtsp_read_header(AVFormatContext *s,
option_list = strchr(path, '?');
if (option_list) {
filename = strchr(s->filename, '?');
while(option_list) {
while (option_list) {
/* move the option pointer */
option = ++option_list;
option_list = strchr(option_list, '&');
@ -1239,13 +1259,13 @@ static int rtsp_read_header(AVFormatContext *s,
*option_list = 0;
/* handle the options */
if (strcmp(option, "udp") == 0)
if (!strcmp(option, "udp")) {
lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_UDP);
else if (strcmp(option, "multicast") == 0)
} else if (!strcmp(option, "multicast")) {
lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
else if (strcmp(option, "tcp") == 0)
} else if (!strcmp(option, "tcp")) {
lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_TCP);
else {
} else {
strcpy(++filename, option);
filename += strlen(option);
if (option_list) *filename = '&';
@ -1266,7 +1286,8 @@ static int rtsp_read_header(AVFormatContext *s,
rt->rtsp_hd = rtsp_hd;
rt->seq = 0;
/* request options supported by the server; this also detects server type */
/* request options supported by the server; this also detects server
* type */
for (rt->server_type = RTSP_SERVER_RTP;;) {
snprintf(cmd, sizeof(cmd),
"OPTIONS %s RTSP/1.0\r\n", s->filename);
@ -1298,9 +1319,8 @@ static int rtsp_read_header(AVFormatContext *s,
continue;
} else if (!strncasecmp(reply->server, "WMServer/", 9)) {
rt->server_type = RTSP_SERVER_WMS;
} else if (rt->server_type == RTSP_SERVER_REAL) {
} else if (rt->server_type == RTSP_SERVER_REAL)
strcpy(real_challenge, reply->real_challenge);
}
break;
}
@ -1337,7 +1357,8 @@ static int rtsp_read_header(AVFormatContext *s,
}
do {
int lower_transport = ff_log2_tab[lower_transport_mask & ~(lower_transport_mask - 1)];
int lower_transport = ff_log2_tab[lower_transport_mask &
~(lower_transport_mask - 1)];
err = make_setup_request(s, host, port, lower_transport,
rt->server_type == RTSP_SERVER_REAL ?
@ -1352,8 +1373,7 @@ static int rtsp_read_header(AVFormatContext *s,
} while (err);
rt->state = RTSP_STATE_IDLE;
rt->seek_timestamp = 0; /* default is to start stream at position
zero */
rt->seek_timestamp = 0; /* default is to start stream at position zero */
if (ap->initial_pause) {
/* do not start immediately */
} else {
@ -1386,7 +1406,7 @@ static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
int fd, fd_max, n, i, ret, tcp_fd;
struct timeval tv;
for(;;) {
for (;;) {
if (url_interrupt_cb())
return AVERROR(EINTR);
FD_ZERO(&rfds);
@ -1397,7 +1417,7 @@ static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
fd_max = 0;
tcp_fd = -1;
}
for(i = 0; i < rt->nb_rtsp_streams; i++) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtsp_st = rt->rtsp_streams[i];
if (rtsp_st->rtp_handle) {
/* currently, we cannot probe RTCP handle because of
@ -1412,7 +1432,7 @@ static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
tv.tv_usec = 100 * 1000;
n = select(fd_max + 1, &rfds, NULL, NULL, &tv);
if (n > 0) {
for(i = 0; i < rt->nb_rtsp_streams; i++) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtsp_st = rt->rtsp_streams[i];
if (rtsp_st->rtp_handle) {
fd = url_get_file_handle(rtsp_st->rtp_handle);
@ -1449,8 +1469,8 @@ static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
#ifdef DEBUG_RTP_TCP
dprintf(s, "tcp_read_packet:\n");
#endif
redo:
for(;;) {
redo:
for (;;) {
RTSPMessageHeader reply;
ret = rtsp_read_reply(s, &reply, NULL, 1);
@ -1465,7 +1485,7 @@ static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
ret = url_read_complete(rt->rtsp_hd, buf, 3);
if (ret != 3)
return -1;
id = buf[0];
id = buf[0];
len = AV_RB16(buf + 1);
#ifdef DEBUG_RTP_TCP
dprintf(s, "id=%d len=%d\n", id, len);
@ -1481,14 +1501,14 @@ static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
return -1;
/* find the matching stream */
for(i = 0; i < rt->nb_rtsp_streams; i++) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtsp_st = rt->rtsp_streams[i];
if (id >= rtsp_st->interleaved_min &&
id <= rtsp_st->interleaved_max)
goto found;
}
goto redo;
found:
found:
*prtsp_st = rtsp_st;
return len;
}
@ -1502,18 +1522,17 @@ static int rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
/* get next frames from the same RTP packet */
if (rt->cur_transport_priv) {
if (rt->transport == RTSP_TRANSPORT_RDT)
if (rt->transport == RTSP_TRANSPORT_RDT) {
ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
else
} else
ret = rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
if (ret == 0) {
rt->cur_transport_priv = NULL;
return 0;
} else if (ret == 1) {
return 0;
} else {
} else
rt->cur_transport_priv = NULL;
}
}
/* read next RTP packet */
@ -1536,22 +1555,20 @@ static int rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
return len;
if (len == 0)
return AVERROR_EOF;
if (rt->transport == RTSP_TRANSPORT_RDT)
if (rt->transport == RTSP_TRANSPORT_RDT) {
ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, buf, len);
else
} else
ret = rtp_parse_packet(rtsp_st->transport_priv, pkt, buf, len);
if (ret < 0)
goto redo;
if (ret == 1) {
if (ret == 1)
/* more packets may follow, so we save the RTP context */
rt->cur_transport_priv = rtsp_st->transport_priv;
}
return ret;
}
static int rtsp_read_packet(AVFormatContext *s,
AVPacket *pkt)
static int rtsp_read_packet(AVFormatContext *s, AVPacket *pkt)
{
RTSPState *rt = s->priv_data;
int ret;
@ -1619,9 +1636,8 @@ static int rtsp_read_packet(AVFormatContext *s,
}
ret = rtsp_fetch_packet(s, pkt);
if (ret < 0) {
if (ret < 0)
return ret;
}
/* send dummy request to keep TCP connection alive */
if ((rt->server_type == RTSP_SERVER_WMS ||
@ -1670,7 +1686,9 @@ static int rtsp_read_seek(AVFormatContext *s, int stream_index,
{
RTSPState *rt = s->priv_data;
rt->seek_timestamp = av_rescale_q(timestamp, s->streams[stream_index]->time_base, AV_TIME_BASE_Q);
rt->seek_timestamp = av_rescale_q(timestamp,
s->streams[stream_index]->time_base,
AV_TIME_BASE_Q);
switch(rt->state) {
default:
case RTSP_STATE_IDLE:
@ -1732,10 +1750,11 @@ static int sdp_probe(AVProbeData *p1)
/* we look for a line beginning "c=IN IP4" */
while (p < p_end && *p != '\0') {
if (p + sizeof("c=IN IP4") - 1 < p_end && av_strstart(p, "c=IN IP4", NULL))
if (p + sizeof("c=IN IP4") - 1 < p_end &&
av_strstart(p, "c=IN IP4", NULL))
return AVPROBE_SCORE_MAX / 2;
while(p < p_end - 1 && *p != '\n') p++;
while (p < p_end - 1 && *p != '\n') p++;
if (++p >= p_end)
break;
if (*p == '\r')
@ -1746,8 +1765,7 @@ static int sdp_probe(AVProbeData *p1)
#define SDP_MAX_SIZE 8192
static int sdp_read_header(AVFormatContext *s,
AVFormatParameters *ap)
static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
RTSPState *rt = s->priv_data;
RTSPStream *rtsp_st;
@ -1769,7 +1787,7 @@ static int sdp_read_header(AVFormatContext *s,
av_free(content);
/* open each RTP stream */
for(i=0;i<rt->nb_rtsp_streams;i++) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtsp_st = rt->rtsp_streams[i];
snprintf(url, sizeof(url), "rtp://%s:%d?localport=%d&ttl=%d",
@ -1785,7 +1803,7 @@ static int sdp_read_header(AVFormatContext *s,
goto fail;
}
return 0;
fail:
fail:
rtsp_close_streams(rt);
return err;
}