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Diffstat (limited to 'contrib/ffmpeg/libavformat/sdp.c')
-rw-r--r--contrib/ffmpeg/libavformat/sdp.c320
1 files changed, 0 insertions, 320 deletions
diff --git a/contrib/ffmpeg/libavformat/sdp.c b/contrib/ffmpeg/libavformat/sdp.c
deleted file mode 100644
index 3a71afcbe..000000000
--- a/contrib/ffmpeg/libavformat/sdp.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- * copyright (c) 2007 Luca Abeni
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "avstring.h"
-#include "avformat.h"
-#include "avc.h"
-#include "base64.h"
-#include "rtp.h"
-
-#ifdef 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 version; /**< session version */
- int start_time; /**< session start time (NTP time, in seconds),
- 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 *user; /**< username of the session's creator */
- const char *src_addr; /**< IP address of the machine from which the session was created */
- const char *dst_addr; /**< destination IP address (can be multicast) */
- const char *name; /**< session name (can be an empty string) */
-};
-
-static void dest_write(char *buff, int size, const char *dest_addr, int ttl)
-{
- if (dest_addr) {
- if (ttl > 0) {
- av_strlcatf(buff, size, "c=IN IP4 %s/%d\r\n", dest_addr, ttl);
- } else {
- av_strlcatf(buff, size, "c=IN IP4 %s\r\n", dest_addr);
- }
- }
-}
-
-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",
- 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);
-}
-
-static int get_address(char *dest_addr, int size, int *ttl, const char *url)
-{
- int port;
- const char *p;
-
- url_split(NULL, 0, NULL, 0, dest_addr, size, &port, NULL, 0, url);
-
- *ttl = 0;
- p = strchr(url, '?');
- if (p) {
- char buff[64];
- int is_multicast = find_info_tag(buff, sizeof(buff), "multicast", p);
-
- if (is_multicast) {
- if (find_info_tag(buff, sizeof(buff), "ttl", p)) {
- *ttl = strtol(buff, NULL, 10);
- } else {
- *ttl = 5;
- }
- }
- }
-
- return port;
-}
-
-#define MAX_PSET_SIZE 1024
-static char *extradata2psets(AVCodecContext *c)
-{
- 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 many extra data!\n");
-
- return NULL;
- }
-
- 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;
-
- while (!*(r++));
- r1 = ff_avc_find_startcode(r, c->extradata + c->extradata_size);
- 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 %d %d!\n", MAX_PSET_SIZE - (p - psets), r1 - r);
- av_free(psets);
-
- return NULL;
- }
- p += strlen(p);
- r = r1;
- }
-
- return psets;
-}
-
-static void digit_to_char(char *dst, uint8_t src)
-{
- if (src < 10) {
- *dst = '0' + src;
- } else {
- *dst = 'A' + src - 10;
- }
-}
-
-static char *data_to_hex(char *buff, const uint8_t *src, int s)
-{
- int i;
-
- 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 buff;
-}
-
-static char *extradata2config(AVCodecContext *c)
-{
- char *config;
-
- if (c->extradata_size > MAX_EXTRADATA_SIZE) {
- av_log(c, AV_LOG_ERROR, "Too many extra data!\n");
-
- 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);
- data_to_hex(config + 9, c->extradata, c->extradata_size);
- config[9 + c->extradata_size * 2] = 0;
-
- return config;
-}
-
-static char *sdp_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_MPEG4:
- 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 >= 96)
- 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 >= 96)
- 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 >= 96)
- av_strlcatf(buff, size, "a=rtpmap:%d PCMA/%d/%d\r\n",
- payload_type,
- c->sample_rate, c->channels);
- break;
- default:
- /* Nothing special to do, here... */
- break;
- }
-
- av_free(config);
-
- return buff;
-}
-
-static void 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);
- if (payload_type < 0) {
- payload_type = 96; /* FIXME: how to assign a private pt? rtp.c is broken too */
- }
-
- 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;
- 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_media_attributes(buff, size, c, payload_type);
-}
-
-int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size)
-{
- 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;
-
- port = 0;
- ttl = 0;
- if (n_files == 1) {
- port = get_address(dst, sizeof(dst), &ttl, ac[0]->filename);
- if (port > 0) {
- s.dst_addr = dst;
- s.ttl = ttl;
- }
- }
- sdp_write_header(buff, size, &s);
-
- dst[0] = 0;
- for (i = 0; i < n_files; i++) {
- if (n_files != 1) {
- port = get_address(dst, sizeof(dst), &ttl, ac[i]->filename);
- }
- for (j = 0; j < ac[i]->nb_streams; j++) {
- sdp_write_media(buff, size,
- ac[i]->streams[j]->codec, dst[0] ? dst : NULL,
- (port > 0) ? port + j * 2 : 0, ttl);
- if (port <= 0) {
- av_strlcatf(buff, size,
- "a=control:streamid=%d\r\n", i + j);
- }
- }
- }
-
- return 0;
-}
-#else
-int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size)
-{
- return AVERROR(ENOSYS);
-}
-#endif
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