/*
* copyright (c) 2007 Luca Abeni
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "libavutil/avstring.h"
#include "libavutil/base64.h"
+#include "libavutil/dict.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/opt.h"
#include "libavcodec/xiph.h"
+#include "libavcodec/mpeg4audio.h"
#include "avformat.h"
#include "internal.h"
#include "avc.h"
return 0;
getnameinfo(ai->ai_addr, ai->ai_addrlen, dest_addr, size,
NULL, 0, NI_NUMERICHOST);
+#ifdef AF_INET6
if (ai->ai_family == AF_INET6)
av_strlcpy(type, "IP6", type_size);
+#endif
is_multicast = ff_is_multicast_address(ai->ai_addr);
freeaddrinfo(ai);
return is_multicast;
if (p) {
char buff[64];
- if (find_info_tag(buff, sizeof(buff), "ttl", p)) {
+ if (av_find_info_tag(buff, sizeof(buff), "ttl", p)) {
*ttl = strtol(buff, NULL, 10);
} else {
*ttl = 5;
return NULL;
}
-static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type)
+static int latm_context2profilelevel(AVCodecContext *c)
+{
+ /* MP4A-LATM
+ * The RTP payload format specification is described in RFC 3016
+ * The encoding specifications are provided in ISO/IEC 14496-3 */
+
+ int profile_level = 0x2B;
+
+ /* TODO: AAC Profile only supports AAC LC Object Type.
+ * Different Object Types should implement different Profile Levels */
+
+ if (c->sample_rate <= 24000) {
+ if (c->channels <= 2)
+ profile_level = 0x28; // AAC Profile, Level 1
+ } else if (c->sample_rate <= 48000) {
+ if (c->channels <= 2) {
+ profile_level = 0x29; // AAC Profile, Level 2
+ } else if (c->channels <= 5) {
+ profile_level = 0x2A; // AAC Profile, Level 4
+ }
+ } else if (c->sample_rate <= 96000) {
+ if (c->channels <= 5) {
+ profile_level = 0x2B; // AAC Profile, Level 5
+ }
+ }
+
+ return profile_level;
+}
+
+static char *latm_context2config(AVCodecContext *c)
+{
+ /* MP4A-LATM
+ * The RTP payload format specification is described in RFC 3016
+ * The encoding specifications are provided in ISO/IEC 14496-3 */
+
+ uint8_t config_byte[6];
+ int rate_index;
+ char *config;
+
+ for (rate_index = 0; rate_index < 16; rate_index++)
+ if (ff_mpeg4audio_sample_rates[rate_index] == c->sample_rate)
+ break;
+ if (rate_index == 16) {
+ av_log(c, AV_LOG_ERROR, "Unsupported sample rate\n");
+ return NULL;
+ }
+
+ config_byte[0] = 0x40;
+ config_byte[1] = 0;
+ config_byte[2] = 0x20 | rate_index;
+ config_byte[3] = c->channels << 4;
+ config_byte[4] = 0x3f;
+ config_byte[5] = 0xc0;
+
+ config = av_malloc(6*2+1);
+ if (!config) {
+ av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n");
+ return NULL;
+ }
+ ff_data_to_hex(config, config_byte, 6, 1);
+ config[12] = 0;
+
+ return config;
+}
+
+static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type, AVFormatContext *fmt)
{
char *config = NULL;
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
- av_strlcatf(buff, size, "a=rtpmap:%d H263-2000/90000\r\n", payload_type);
+ /* a=framesize is required by 3GPP TS 26.234 (PSS). It
+ * actually specifies the maximum video size, but we only know
+ * the current size. This is required for playback on Android
+ * stagefright and on Samsung bada. */
+ av_strlcatf(buff, size, "a=rtpmap:%d H263-2000/90000\r\n"
+ "a=framesize:%d %d-%d\r\n",
+ payload_type,
+ payload_type, c->width, c->height);
break;
case CODEC_ID_MPEG4:
if (c->extradata_size) {
payload_type, config ? config : "");
break;
case CODEC_ID_AAC:
- if (c->extradata_size) {
- config = extradata2config(c);
+ if (fmt && fmt->oformat->priv_class &&
+ av_opt_flag_is_set(fmt->priv_data, "rtpflags", "latm")) {
+ config = latm_context2config(c);
+ if (!config)
+ return NULL;
+ av_strlcatf(buff, size, "a=rtpmap:%d MP4A-LATM/%d/%d\r\n"
+ "a=fmtp:%d profile-level-id=%d;cpresent=0;config=%s\r\n",
+ payload_type, c->sample_rate, c->channels,
+ payload_type, latm_context2profilelevel(c), config);
} 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;
+ 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);
}
- 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)
return buff;
}
-void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl)
+void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl, AVFormatContext *fmt)
{
const char *type;
int payload_type;
- payload_type = ff_rtp_get_payload_type(c);
- if (payload_type < 0) {
- payload_type = RTP_PT_PRIVATE + (c->codec_type == AVMEDIA_TYPE_AUDIO);
- }
+ payload_type = ff_rtp_get_payload_type(fmt, c);
switch (c->codec_type) {
case AVMEDIA_TYPE_VIDEO : type = "video" ; break;
av_strlcatf(buff, size, "b=AS:%d\r\n", c->bit_rate / 1000);
}
- sdp_write_media_attributes(buff, size, c, payload_type);
+ sdp_write_media_attributes(buff, size, c, payload_type, fmt);
}
-int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size)
+int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
{
- AVMetadataTag *title = av_metadata_get(ac[0]->metadata, "title", NULL, 0);
+ AVDictionaryEntry *title = av_dict_get(ac[0]->metadata, "title", NULL, 0);
struct sdp_session_level s;
int i, j, port, ttl, is_multicast;
char dst[32], dst_type[5];
- memset(buff, 0, size);
+ memset(buf, 0, size);
memset(&s, 0, sizeof(struct sdp_session_level));
s.user = "-";
s.src_addr = "127.0.0.1"; /* FIXME: Properly set this */
}
}
}
- sdp_write_header(buff, size, &s);
+ sdp_write_header(buf, size, &s);
dst[0] = 0;
for (i = 0; i < n_files; i++) {
ttl = 0;
}
for (j = 0; j < ac[i]->nb_streams; j++) {
- ff_sdp_write_media(buff, size,
+ ff_sdp_write_media(buf, size,
ac[i]->streams[j]->codec, dst[0] ? dst : NULL,
- dst_type, (port > 0) ? port + j * 2 : 0, ttl);
+ dst_type, (port > 0) ? port + j * 2 : 0, ttl,
+ ac[i]);
if (port <= 0) {
- av_strlcatf(buff, size,
+ av_strlcatf(buf, 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)
+int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
{
return AVERROR(ENOSYS);
}
-void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl)
+void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl, AVFormatContext *fmt)
+{
+}
+#endif
+
+#if FF_API_SDP_CREATE
+int avf_sdp_create(AVFormatContext *ac[], int n_files, char *buff, int size)
{
+ return av_sdp_create(ac, n_files, buff, size);
}
#endif
projects / ffmpeg / blobdiff