* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "avstring.h"
+#include <string.h>
+#include "libavutil/avstring.h"
+#include "libavutil/base64.h"
#include "avformat.h"
+#include "internal.h"
+#include "avc.h"
+#include "rtp.h"
+#if CONFIG_NETWORK
+#include "network.h"
+#endif
-#ifdef CONFIG_RTP_MUXER
+#if CONFIG_RTP_MUXER
#define MAX_EXTRADATA_SIZE ((INT_MAX - 10) / 2)
struct sdp_session_level {
int sdp_version; /**< protocol version (currently 0) */
- int id; /**< session id */
+ int id; /**< session ID */
int version; /**< session version */
int start_time; /**< session start time (NTP time, in seconds),
- or 0 in case of permanent session */
+ or 0 in case of permanent session */
int end_time; /**< session end time (NTP time, in seconds),
or 0 if the session is not bounded */
int ttl; /**< TTL, in case of multicast stream */
const char *name; /**< session name (can be an empty string) */
};
-static void dest_write(char *buff, int size, const char *dest_addr, int ttl)
+static void sdp_write_address(char *buff, int size, const char *dest_addr, int ttl)
{
if (dest_addr) {
if (ttl > 0) {
static void sdp_write_header(char *buff, int size, struct sdp_session_level *s)
{
av_strlcatf(buff, size, "v=%d\r\n"
- "o=- %d %d IN IPV4 %s\r\n"
- "t=%d %d\r\n"
- "s=%s\r\n"
- "a=tool:libavformat\r\n",
+ "o=- %d %d IN IP4 %s\r\n"
+ "s=%s\r\n",
s->sdp_version,
s->id, s->version, s->src_addr,
- s->start_time, s->end_time,
- s->name[0] ? s->name : "No Name");
- dest_write(buff, size, s->dst_addr, s->ttl);
+ s->name);
+ sdp_write_address(buff, size, s->dst_addr, s->ttl);
+ av_strlcatf(buff, size, "t=%d %d\r\n"
+ "a=tool:libavformat " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\r\n",
+ s->start_time, s->end_time);
+}
+
+#if CONFIG_NETWORK
+static void resolve_destination(char *dest_addr, int size)
+{
+ struct addrinfo hints, *ai, *cur;
+
+ if (!dest_addr[0])
+ return;
+
+ /* Resolve the destination, since it must be written
+ * as a numeric IP address in the SDP. */
+
+ memset(&hints, 0, sizeof(hints));
+ /* We only support IPv4 addresses in the SDP at the moment. */
+ hints.ai_family = AF_INET;
+ if (getaddrinfo(dest_addr, NULL, &hints, &ai))
+ return;
+ for (cur = ai; cur; cur = cur->ai_next) {
+ if (cur->ai_family == AF_INET) {
+ getnameinfo(cur->ai_addr, cur->ai_addrlen, dest_addr, size,
+ NULL, 0, NI_NUMERICHOST);
+ break;
+ }
+ }
+ freeaddrinfo(ai);
}
+#else
+static void resolve_destination(char *dest_addr, int size)
+{
+}
+#endif
-static int get_address(char *dest_addr, int size, int *ttl, const char *url)
+static int sdp_get_address(char *dest_addr, int size, int *ttl, const char *url)
{
int port;
const char *p;
+ char proto[32];
- url_split(NULL, 0, NULL, 0, dest_addr, size, &port, NULL, 0, url);
+ ff_url_split(proto, sizeof(proto), NULL, 0, dest_addr, size, &port, NULL, 0, url);
*ttl = 0;
+
+ if (strcmp(proto, "rtp")) {
+ /* The url isn't for the actual rtp sessions,
+ * don't parse out anything else than the destination.
+ */
+ return 0;
+ }
+
p = strchr(url, '?');
if (p) {
char buff[64];
return port;
}
-static void digit_to_char(char *dst, uint8_t src)
+#define MAX_PSET_SIZE 1024
+static char *extradata2psets(AVCodecContext *c)
{
- if (src < 10) {
- *dst = '0' + src;
- } else {
- *dst = 'A' + src - 10;
+ char *psets, *p;
+ const uint8_t *r;
+ const char *pset_string = "; sprop-parameter-sets=";
+
+ if (c->extradata_size > MAX_EXTRADATA_SIZE) {
+ av_log(c, AV_LOG_ERROR, "Too much extradata!\n");
+
+ return NULL;
}
+ if (c->extradata[0] == 1) {
+ uint8_t *dummy_p;
+ int dummy_int;
+ AVBitStreamFilterContext *bsfc= av_bitstream_filter_init("h264_mp4toannexb");
+
+ if (!bsfc) {
+ av_log(c, AV_LOG_ERROR, "Cannot open the h264_mp4toannexb BSF!\n");
+
+ return NULL;
+ }
+ av_bitstream_filter_filter(bsfc, c, NULL, &dummy_p, &dummy_int, NULL, 0, 0);
+ av_bitstream_filter_close(bsfc);
+ }
+
+ psets = av_mallocz(MAX_PSET_SIZE);
+ if (psets == NULL) {
+ av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the parameter sets.\n");
+ return NULL;
+ }
+ memcpy(psets, pset_string, strlen(pset_string));
+ p = psets + strlen(pset_string);
+ r = ff_avc_find_startcode(c->extradata, c->extradata + c->extradata_size);
+ while (r < c->extradata + c->extradata_size) {
+ const uint8_t *r1;
+ uint8_t nal_type;
+
+ while (!*(r++));
+ nal_type = *r & 0x1f;
+ r1 = ff_avc_find_startcode(r, c->extradata + c->extradata_size);
+ if (nal_type != 7 && nal_type != 8) { /* Only output SPS and PPS */
+ r = r1;
+ continue;
+ }
+ if (p != (psets + strlen(pset_string))) {
+ *p = ',';
+ p++;
+ }
+ if (av_base64_encode(p, MAX_PSET_SIZE - (p - psets), r, r1 - r) == NULL) {
+ av_log(c, AV_LOG_ERROR, "Cannot Base64-encode %td %td!\n", MAX_PSET_SIZE - (p - psets), r1 - r);
+ av_free(psets);
+
+ return NULL;
+ }
+ p += strlen(p);
+ r = r1;
+ }
+
+ return psets;
}
-static char *data_to_hex(char *buff, const uint8_t *src, int s)
+static char *extradata2config(AVCodecContext *c)
{
- int i;
+ char *config;
+
+ if (c->extradata_size > MAX_EXTRADATA_SIZE) {
+ av_log(c, AV_LOG_ERROR, "Too much extradata!\n");
- for(i = 0; i < s; i++) {
- digit_to_char(buff + 2 * i, src[i] >> 4);
- digit_to_char(buff + 2 * i + 1, src[i] & 0xF);
+ return NULL;
+ }
+ config = av_malloc(10 + c->extradata_size * 2);
+ if (config == NULL) {
+ av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n");
+ return NULL;
}
+ memcpy(config, "; config=", 9);
+ ff_data_to_hex(config + 9, c->extradata, c->extradata_size, 0);
+ config[9 + c->extradata_size * 2] = 0;
- return buff;
+ return config;
}
-static char *sdp_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type)
+static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type)
{
char *config = NULL;
switch (c->codec_id) {
+ case CODEC_ID_H264:
+ if (c->extradata_size) {
+ config = extradata2psets(c);
+ }
+ av_strlcatf(buff, size, "a=rtpmap:%d H264/90000\r\n"
+ "a=fmtp:%d packetization-mode=1%s\r\n",
+ payload_type,
+ payload_type, config ? config : "");
+ break;
+ case CODEC_ID_H263:
+ case CODEC_ID_H263P:
+ av_strlcatf(buff, size, "a=rtpmap:%d H263-2000/90000\r\n", payload_type);
+ break;
case CODEC_ID_MPEG4:
- if (c->flags & CODEC_FLAG_GLOBAL_HEADER) {
- if (c->extradata_size > MAX_EXTRADATA_SIZE) {
- av_log(NULL, AV_LOG_ERROR, "Too many extra data!\n");
-
- return NULL;
- }
- config = av_malloc(10 + c->extradata_size * 2);
- if (config == NULL) {
- av_log(NULL, AV_LOG_ERROR, "Cannot allocate memory for the config info\n");
- return NULL;
- }
- memcpy(config, "; config=", 9);
- data_to_hex(config + 9, c->extradata, c->extradata_size);
- config[9 + c->extradata_size * 2] = 0;
+ if (c->extradata_size) {
+ config = extradata2config(c);
}
av_strlcatf(buff, size, "a=rtpmap:%d MP4V-ES/90000\r\n"
"a=fmtp:%d profile-level-id=1%s\r\n",
payload_type,
payload_type, config ? config : "");
break;
+ case CODEC_ID_AAC:
+ if (c->extradata_size) {
+ config = extradata2config(c);
+ } else {
+ /* FIXME: maybe we can forge config information based on the
+ * codec parameters...
+ */
+ av_log(c, AV_LOG_ERROR, "AAC with no global headers is currently not supported.\n");
+ return NULL;
+ }
+ if (config == NULL) {
+ return NULL;
+ }
+ av_strlcatf(buff, size, "a=rtpmap:%d MPEG4-GENERIC/%d/%d\r\n"
+ "a=fmtp:%d profile-level-id=1;"
+ "mode=AAC-hbr;sizelength=13;indexlength=3;"
+ "indexdeltalength=3%s\r\n",
+ payload_type, c->sample_rate, c->channels,
+ payload_type, config);
+ break;
+ case CODEC_ID_PCM_S16BE:
+ if (payload_type >= RTP_PT_PRIVATE)
+ av_strlcatf(buff, size, "a=rtpmap:%d L16/%d/%d\r\n",
+ payload_type,
+ c->sample_rate, c->channels);
+ break;
+ case CODEC_ID_PCM_MULAW:
+ if (payload_type >= RTP_PT_PRIVATE)
+ av_strlcatf(buff, size, "a=rtpmap:%d PCMU/%d/%d\r\n",
+ payload_type,
+ c->sample_rate, c->channels);
+ break;
+ case CODEC_ID_PCM_ALAW:
+ if (payload_type >= RTP_PT_PRIVATE)
+ av_strlcatf(buff, size, "a=rtpmap:%d PCMA/%d/%d\r\n",
+ payload_type,
+ c->sample_rate, c->channels);
+ break;
+ case CODEC_ID_AMR_NB:
+ av_strlcatf(buff, size, "a=rtpmap:%d AMR/%d/%d\r\n"
+ "a=fmtp:%d octet-align=1\r\n",
+ payload_type, c->sample_rate, c->channels,
+ payload_type);
+ break;
+ case CODEC_ID_AMR_WB:
+ av_strlcatf(buff, size, "a=rtpmap:%d AMR-WB/%d/%d\r\n"
+ "a=fmtp:%d octet-align=1\r\n",
+ payload_type, c->sample_rate, c->channels,
+ payload_type);
+ break;
default:
- /* Nothing special to do, here... */
+ /* Nothing special to do here... */
break;
}
return buff;
}
-static void sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, int port, int ttl)
+void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, int port, int ttl)
{
const char *type;
int payload_type;
- payload_type = rtp_get_payload_type(c);
+ payload_type = ff_rtp_get_payload_type(c);
if (payload_type < 0) {
- payload_type = 96; /* FIXME: how to assign a private pt? rtp.c is broken too */
+ payload_type = RTP_PT_PRIVATE + (c->codec_type == AVMEDIA_TYPE_AUDIO);
}
switch (c->codec_type) {
- case CODEC_TYPE_VIDEO : type = "video" ; break;
- case CODEC_TYPE_AUDIO : type = "audio" ; break;
- case CODEC_TYPE_SUBTITLE: type = "text" ; break;
+ case AVMEDIA_TYPE_VIDEO : type = "video" ; break;
+ case AVMEDIA_TYPE_AUDIO : type = "audio" ; break;
+ case AVMEDIA_TYPE_SUBTITLE: type = "text" ; break;
default : type = "application"; break;
}
av_strlcatf(buff, size, "m=%s %d RTP/AVP %d\r\n", type, port, payload_type);
- dest_write(buff, size, dest_addr, ttl);
+ sdp_write_address(buff, size, dest_addr, ttl);
+ if (c->bit_rate) {
+ av_strlcatf(buff, size, "b=AS:%d\r\n", c->bit_rate / 1000);
+ }
- sdp_media_attributes(buff, size, c, payload_type);
+ sdp_write_media_attributes(buff, size, c, payload_type);
}
int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size)
{
+ AVMetadataTag *title = av_metadata_get(ac[0]->metadata, "title", NULL, 0);
struct sdp_session_level s;
int i, j, port, ttl;
char dst[32];
+ memset(buff, 0, size);
memset(&s, 0, sizeof(struct sdp_session_level));
s.user = "-";
s.src_addr = "127.0.0.1"; /* FIXME: Properly set this */
- s.name = ac[0]->title;
+ s.name = title ? title->value : "No Name";
port = 0;
ttl = 0;
if (n_files == 1) {
- port = get_address(dst, sizeof(dst), &ttl, ac[0]->filename);
- if (port > 0) {
+ port = sdp_get_address(dst, sizeof(dst), &ttl, ac[0]->filename);
+ resolve_destination(dst, sizeof(dst));
+ if (dst[0]) {
s.dst_addr = dst;
s.ttl = ttl;
}
dst[0] = 0;
for (i = 0; i < n_files; i++) {
if (n_files != 1) {
- port = get_address(dst, sizeof(dst), &ttl, ac[i]->filename);
+ port = sdp_get_address(dst, sizeof(dst), &ttl, ac[i]->filename);
+ resolve_destination(dst, sizeof(dst));
}
for (j = 0; j < ac[i]->nb_streams; j++) {
- sdp_write_media(buff, size,
+ ff_sdp_write_media(buff, size,
ac[i]->streams[j]->codec, dst[0] ? dst : NULL,
(port > 0) ? port + j * 2 : 0, ttl);
if (port <= 0) {
{
return AVERROR(ENOSYS);
}
+
+void ff_sdp_write_media(char *buff, int size, AVCodecContext *c,
+ const char *dest_addr, int port, int ttl)
+{
+}
#endif
projects / ffmpeg / blobdiff