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RTSP: Move more SDP/FMTP stuff from rtsp.c to rtpdec_mpeg4.c

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Patch by Josh Allmann, joshua dot allmann at gmail

Originally committed as revision 23770 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Josh Allmann 2010-06-25 08:00:05 +00:00 committed by Martin Storsjö
parent 9b3788efc3
commit 7fc8ac7fd8
2 changed files with 50 additions and 69 deletions
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50
libavformat/rtpdec_mpeg4.c
View File

@ -30,6 +30,9 @@
#include "rtpdec_mpeg4.h"
#include "internal.h"
#include "libavutil/avstring.h"
#include <strings.h>
#include "rtsp.h" //XXX remove this dependency
/* return the length and optionally the data */
static int hex_to_data(uint8_t *data, const char *p)
@ -60,6 +63,32 @@ static int hex_to_data(uint8_t *data, const char *p)
return len;
}
typedef struct {
const char *str;
uint16_t type;
uint32_t offset;
} AttrNameMap;
/* All known fmtp parameters and the corresponding RTPAttrTypeEnum */
#define ATTR_NAME_TYPE_INT 0
#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 },
};
static int parse_fmtp_config(AVCodecContext * codec, char *value)
{
/* decode the hexa encoded parameter */
@ -79,8 +108,11 @@ static int parse_sdp_line(AVFormatContext *s, int st_index,
{
const char *p;
char value[4096], attr[25];
int res = 0;
AVCodecContext* codec = s->streams[st_index]->codec;
int res = 0, i;
AVStream *st = s->streams[st_index];
RTSPStream *rtsp_st = st->priv_data;
AVCodecContext* codec = st->codec;
RTPPayloadData *rtp_payload_data = &rtsp_st->rtp_payload_data;
if (av_strstart(line, "fmtp:", &p)) {
// remove protocol identifier
@ -97,6 +129,20 @@ static int parse_sdp_line(AVFormatContext *s, int st_index,
if (res < 0)
return res;
}
if (codec->codec_id == CODEC_ID_AAC) {
/* 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);
}
}
}
}
}

69
libavformat/rtsp.c
View File

@ -158,32 +158,6 @@ static int sdp_parse_rtpmap(AVFormatContext *s,
return 0;
}
typedef struct {
const char *str;
uint16_t type;
uint32_t offset;
} AttrNameMap;
/* All known fmtp parameters and the corresponding RTPAttrTypeEnum */
#define ATTR_NAME_TYPE_INT 0
#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 },
};
/* parse the attribute line from the fmtp a line of an sdp response. This
* is broken out as a function because it is used in rtp_h264.c, which is
* forthcoming. */
@ -203,32 +177,6 @@ int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
return 0;
}
/* parse a SDP line and save stream attributes */
static void sdp_parse_fmtp(AVStream *st, const char *p)
{
char attr[256];
char value[4096];
int i;
RTSPStream *rtsp_st = st->priv_data;
RTPPayloadData *rtp_payload_data = &rtsp_st->rtp_payload_data;
/* loop on each attribute */
while (ff_rtsp_next_attr_and_value(&p, attr, sizeof(attr),
value, sizeof(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);
}
}
}
}
/** Parse a string p in the form of Range:npt=xx-xx, and determine the start
* and end time.
* Used for seeking in the rtp stream.
@ -399,22 +347,9 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
st = s->streams[s->nb_streams - 1];
rtsp_st = st->priv_data;
sdp_parse_rtpmap(s, st->codec, rtsp_st, payload_type, p);
} else if (av_strstart(p, "fmtp:", &p)) {
} else if (av_strstart(p, "fmtp:", &p) ||
av_strstart(p, "framesize:", &p)) {
/* 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];
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)))
sdp_parse_fmtp(st, 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);