Merge remote-tracking branch 'qatar/master'

* qatar/master: (24 commits)
  flvdec: remove incomplete, disabled seeking code
  mem: add support for _aligned_malloc() as found on Windows
  lavc: Extend the documentation for avcodec_init_packet
  flvdec: remove incomplete, disabled seeking code
  http: replace atoll() with strtoll()
  mpegts: remove unused/incomplete/broken seeking code
  af_amix: allow float planar sample format as input
  af_amix: use AVFloatDSPContext.vector_fmac_scalar()
  float_dsp: add x86-optimized functions for vector_fmac_scalar()
  float_dsp: Move vector_fmac_scalar() from libavcodec to libavutil
  lavr: Add x86-optimized function for flt to s32 conversion
  lavr: Add x86-optimized function for flt to s16 conversion
  lavr: Add x86-optimized functions for s32 to flt conversion
  lavr: Add x86-optimized functions for s32 to s16 conversion
  lavr: Add x86-optimized functions for s16 to flt conversion
  lavr: Add x86-optimized function for s16 to s32 conversion
  rtpenc: Support packetizing iLBC
  rtpdec: Add a depacketizer for iLBC
  Implement the iLBC storage file format
  mov: Support muxing/demuxing iLBC
  ...

Conflicts:
	Changelog
	configure
	libavcodec/avcodec.h
	libavcodec/dsputil.c
	libavcodec/version.h
	libavformat/movenc.c
	libavformat/mpegts.c
	libavformat/version.h
	libavutil/mem.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

17 files changed, 287 insertions, 130 deletions

diff --git a/libavformat/Makefile b/libavformat/Makefile
index 3dca060994..f38b8a575c 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -123,6 +123,8 @@ OBJS-$(CONFIG_ICO_DEMUXER)               += icodec.o
 OBJS-$(CONFIG_IDCIN_DEMUXER)             += idcin.o
 OBJS-$(CONFIG_IDF_DEMUXER)               += bintext.o
 OBJS-$(CONFIG_IFF_DEMUXER)               += iff.o
+OBJS-$(CONFIG_ILBC_DEMUXER)              += ilbc.o
+OBJS-$(CONFIG_ILBC_MUXER)                += ilbc.o
 OBJS-$(CONFIG_IMAGE2_DEMUXER)            += img2dec.o img2.o
 OBJS-$(CONFIG_IMAGE2_MUXER)              += img2enc.o img2.o
 OBJS-$(CONFIG_IMAGE2PIPE_DEMUXER)        += img2dec.o img2.o
@@ -281,6 +283,7 @@ OBJS-$(CONFIG_RTPDEC)                    += rdt.o         \
                                             rtpdec_h263.o \
                                             rtpdec_h263_rfc2190.o \
                                             rtpdec_h264.o \
+                                            rtpdec_ilbc.o \
                                             rtpdec_latm.o \
                                             rtpdec_mpeg4.o \
                                             rtpdec_qcelp.o \
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index ed9227e5b6..b5738e4d97 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -116,6 +116,7 @@ void av_register_all(void)
     REGISTER_DEMUXER  (IDCIN, idcin);
     REGISTER_DEMUXER  (IDF, idf);
     REGISTER_DEMUXER  (IFF, iff);
+    REGISTER_MUXDEMUX (ILBC, ilbc);
     REGISTER_MUXDEMUX (IMAGE2, image2);
     REGISTER_MUXDEMUX (IMAGE2PIPE, image2pipe);
     REGISTER_DEMUXER  (INGENIENT, ingenient);
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index aa016ee4de..31f306872f 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -759,33 +759,6 @@ static int flv_read_seek(AVFormatContext *s, int stream_index,
     return avio_seek_time(s->pb, stream_index, ts, flags);
 }
 
-#if 0 /* don't know enough to implement this */
-static int flv_read_seek2(AVFormatContext *s, int stream_index,
-    int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
-{
-    int ret = AVERROR(ENOSYS);
-
-    if (ts - min_ts > (uint64_t)(max_ts - ts)) flags |= AVSEEK_FLAG_BACKWARD;
-
-    if (!s->pb->seekable) {
-        if (stream_index < 0) {
-            stream_index = av_find_default_stream_index(s);
-            if (stream_index < 0)
-                return -1;
-
-            /* timestamp for default must be expressed in AV_TIME_BASE units */
-            ts = av_rescale_rnd(ts, 1000, AV_TIME_BASE,
-                flags & AVSEEK_FLAG_BACKWARD ? AV_ROUND_DOWN : AV_ROUND_UP);
-        }
-        ret = avio_seek_time(s->pb, stream_index, ts, flags);
-    }
-
-    if (ret == AVERROR(ENOSYS))
-        ret = av_seek_frame(s, stream_index, ts, flags);
-    return ret;
-}
-#endif
-
 AVInputFormat ff_flv_demuxer = {
     .name           = "flv",
     .long_name      = NULL_IF_CONFIG_SMALL("FLV format"),
@@ -794,9 +767,6 @@ AVInputFormat ff_flv_demuxer = {
     .read_header    = flv_read_header,
     .read_packet    = flv_read_packet,
     .read_seek      = flv_read_seek,
-#if 0
-    .read_seek2     = flv_read_seek2,
-#endif
     .read_close     = flv_read_close,
     .extensions     = "flv",
 };
diff --git a/libavformat/http.c b/libavformat/http.c
index fb4a83ad0e..96a7eeda0a 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -308,15 +308,15 @@ static int process_line(URLContext *h, char *line, int line_count,
             strcpy(s->location, p);
             *new_location = 1;
         } else if (!av_strcasecmp (tag, "Content-Length") && s->filesize == -1) {
-            s->filesize = atoll(p);
+            s->filesize = strtoll(p, NULL, 10);
         } else if (!av_strcasecmp (tag, "Content-Range")) {
             /* "bytes $from-$to/$document_size" */
             const char *slash;
             if (!strncmp (p, "bytes ", 6)) {
                 p += 6;
-                s->off = atoll(p);
+                s->off = strtoll(p, NULL, 10);
                 if ((slash = strchr(p, '/')) && strlen(slash) > 0)
-                    s->filesize = atoll(slash+1);
+                    s->filesize = strtoll(slash+1, NULL, 10);
             }
             h->is_streamed = 0; /* we _can_ in fact seek */
         } else if (!av_strcasecmp(tag, "Accept-Ranges") && !strncmp(p, "bytes", 5)) {
diff --git a/libavformat/ilbc.c b/libavformat/ilbc.c
new file mode 100644
index 0000000000..d4f4583545
--- /dev/null
+++ b/libavformat/ilbc.c
@@ -0,0 +1,141 @@
+/*
+ * iLBC storage file format
+ * Copyright (c) 2012 Martin Storsjo
+ *
+ * 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 "avformat.h"
+#include "internal.h"
+
+static const char mode20_header[] = "#!iLBC20\n";
+static const char mode30_header[] = "#!iLBC30\n";
+
+static int ilbc_write_header(AVFormatContext *s)
+{
+    AVIOContext *pb = s->pb;
+    AVCodecContext *enc;
+
+    if (s->nb_streams != 1) {
+        av_log(s, AV_LOG_ERROR, "Unsupported number of streams\n");
+        return AVERROR(EINVAL);
+    }
+    enc = s->streams[0]->codec;
+
+    if (enc->codec_id != CODEC_ID_ILBC) {
+        av_log(s, AV_LOG_ERROR, "Unsupported codec\n");
+        return AVERROR(EINVAL);
+    }
+
+    if (enc->block_align == 50) {
+        avio_write(pb, mode30_header, sizeof(mode30_header) - 1);
+    } else if (enc->block_align == 38) {
+        avio_write(pb, mode20_header, sizeof(mode20_header) - 1);
+    } else {
+        av_log(s, AV_LOG_ERROR, "Unsupported mode\n");
+        return AVERROR(EINVAL);
+    }
+    avio_flush(pb);
+    return 0;
+}
+
+static int ilbc_write_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    avio_write(s->pb, pkt->data, pkt->size);
+    avio_flush(s->pb);
+    return 0;
+}
+
+static int ilbc_probe(AVProbeData *p)
+{
+    // Only check for "#!iLBC" which matches both formats
+    if (!memcmp(p->buf, mode20_header, 6))
+        return AVPROBE_SCORE_MAX;
+    else
+        return 0;
+}
+
+static int ilbc_read_header(AVFormatContext *s)
+{
+    AVIOContext *pb = s->pb;
+    AVStream *st;
+    uint8_t header[9];
+
+    avio_read(pb, header, 9);
+
+    st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_id = CODEC_ID_ILBC;
+    st->codec->sample_rate = 8000;
+    st->codec->channels = 1;
+    st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+    st->start_time = 0;
+    avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
+    if (!memcmp(header, mode20_header, sizeof(mode20_header) - 1)) {
+        st->codec->block_align = 38;
+        st->codec->bit_rate = 15200;
+    } else if (!memcmp(header, mode30_header, sizeof(mode30_header) - 1)) {
+        st->codec->block_align = 50;
+        st->codec->bit_rate = 13333;
+    } else {
+        av_log(s, AV_LOG_ERROR, "Unrecognized iLBC file header\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    return 0;
+}
+
+static int ilbc_read_packet(AVFormatContext *s,
+                          AVPacket *pkt)
+{
+    AVCodecContext *enc = s->streams[0]->codec;
+    int ret;
+
+    if ((ret = av_new_packet(pkt, enc->block_align)) < 0)
+        return ret;
+
+    pkt->stream_index = 0;
+    pkt->pos = avio_tell(s->pb);
+    pkt->duration = enc->block_align == 38 ? 160 : 240;
+    if ((ret = avio_read(s->pb, pkt->data, enc->block_align)) != enc->block_align) {
+        av_free_packet(pkt);
+        return ret < 0 ? ret : AVERROR(EIO);
+    }
+
+    return 0;
+}
+
+AVInputFormat ff_ilbc_demuxer = {
+    .name         = "ilbc",
+    .long_name    = NULL_IF_CONFIG_SMALL("iLBC storage file format"),
+    .read_probe   = ilbc_probe,
+    .read_header  = ilbc_read_header,
+    .read_packet  = ilbc_read_packet,
+    .flags        = AVFMT_GENERIC_INDEX,
+};
+
+AVOutputFormat ff_ilbc_muxer = {
+    .name         = "ilbc",
+    .long_name    = NULL_IF_CONFIG_SMALL("iLBC storage file format"),
+    .mime_type    = "audio/iLBC",
+    .extensions   = "lbc",
+    .audio_codec  = CODEC_ID_ILBC,
+    .write_header = ilbc_write_header,
+    .write_packet = ilbc_write_packet,
+    .flags        = AVFMT_NOTIMESTAMPS,
+};
diff --git a/libavformat/isom.c b/libavformat/isom.c
index e4575033e2..0ddbb813ec 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -259,6 +259,7 @@ const AVCodecTag ff_codec_movaudio_tags[] = {
     { CODEC_ID_DVAUDIO,         MKTAG('v', 'd', 'v', 'a') },
     { CODEC_ID_DVAUDIO,         MKTAG('d', 'v', 'c', 'a') },
     { CODEC_ID_GSM,             MKTAG('a', 'g', 's', 'm') },
+    { CODEC_ID_ILBC,            MKTAG('i', 'l', 'b', 'c') },
     { CODEC_ID_MACE3,           MKTAG('M', 'A', 'C', '3') },
     { CODEC_ID_MACE6,           MKTAG('M', 'A', 'C', '6') },
     { CODEC_ID_MP1,             MKTAG('.', 'm', 'p', '1') },
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 9548f215f3..3aab48ffff 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1540,6 +1540,7 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
     case CODEC_ID_GSM:
     case CODEC_ID_ADPCM_MS:
     case CODEC_ID_ADPCM_IMA_WAV:
+    case CODEC_ID_ILBC:
         st->codec->block_align = sc->bytes_per_frame;
         break;
     case CODEC_ID_ALAC:
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index d5eb25bcc2..89072d5ded 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -3371,7 +3371,8 @@ static int mov_write_header(AVFormatContext *s)
                 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
                 track->audio_vbr = 1;
             }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
-                     st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
+                     st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV ||
+                     st->codec->codec_id == CODEC_ID_ILBC){
                 if (!st->codec->block_align) {
                     av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
                     goto error;
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 3acca0230c..3a5ed696c8 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -19,8 +19,6 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-//#define USE_SYNCPOINT_SEARCH
-
 #include "libavutil/crc.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/log.h"
@@ -2161,92 +2159,6 @@ static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index,
     return AV_NOPTS_VALUE;
 }
 
-#ifdef USE_SYNCPOINT_SEARCH
-
-static int read_seek2(AVFormatContext *s,
-                      int stream_index,
-                      int64_t min_ts,
-                      int64_t target_ts,
-                      int64_t max_ts,
-                      int flags)
-{
-    int64_t pos;
-
-    int64_t ts_ret, ts_adj;
-    int stream_index_gen_search;
-    AVStream *st;
-    AVParserState *backup;
-
-    backup = ff_store_parser_state(s);
-
-    // detect direction of seeking for search purposes
-    flags |= (target_ts - min_ts > (uint64_t)(max_ts - target_ts)) ?
-             AVSEEK_FLAG_BACKWARD : 0;
-
-    if (flags & AVSEEK_FLAG_BYTE) {
-        // use position directly, we will search starting from it
-        pos = target_ts;
-    } else {
-        // search for some position with good timestamp match
-        if (stream_index < 0) {
-            stream_index_gen_search = av_find_default_stream_index(s);
-            if (stream_index_gen_search < 0) {
-                ff_restore_parser_state(s, backup);
-                return -1;
-            }
-
-            st = s->streams[stream_index_gen_search];
-            // timestamp for default must be expressed in AV_TIME_BASE units
-            ts_adj = av_rescale(target_ts,
-                                st->time_base.den,
-                                AV_TIME_BASE * (int64_t)st->time_base.num);
-        } else {
-            ts_adj = target_ts;
-            stream_index_gen_search = stream_index;
-        }
-        pos = ff_gen_search(s, stream_index_gen_search, ts_adj,
-                            0, INT64_MAX, -1,
-                            AV_NOPTS_VALUE,
-                            AV_NOPTS_VALUE,
-                            flags, &ts_ret, mpegts_get_pcr);
-        if (pos < 0) {
-            ff_restore_parser_state(s, backup);
-            return -1;
-        }
-    }
-
-    // search for actual matching keyframe/starting position for all streams
-    if (ff_gen_syncpoint_search(s, stream_index, pos,
-                                min_ts, target_ts, max_ts,
-                                flags) < 0) {
-        ff_restore_parser_state(s, backup);
-        return -1;
-    }
-
-    ff_free_parser_state(s, backup);
-    return 0;
-}
-
-static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
-{
-    int ret;
-    if (flags & AVSEEK_FLAG_BACKWARD) {
-        flags &= ~AVSEEK_FLAG_BACKWARD;
-        ret = read_seek2(s, stream_index, INT64_MIN, target_ts, target_ts, flags);
-        if (ret < 0)
-            // for compatibility reasons, seek to the best-fitting timestamp
-            ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags);
-    } else {
-        ret = read_seek2(s, stream_index, target_ts, target_ts, INT64_MAX, flags);
-        if (ret < 0)
-            // for compatibility reasons, seek to the best-fitting timestamp
-            ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags);
-    }
-    return ret;
-}
-
-#endif
-
 /**************************************************************/
 /* parsing functions - called from other demuxers such as RTP */
 
@@ -2313,9 +2225,6 @@ AVInputFormat ff_mpegts_demuxer = {
     .read_close     = mpegts_read_close,
     .read_timestamp = mpegts_get_dts,
     .flags          = AVFMT_SHOW_IDS | AVFMT_TS_DISCONT,
-#ifdef USE_SYNCPOINT_SEARCH
-    .read_seek2     = read_seek2,
-#endif
 };
 
 AVInputFormat ff_mpegtsraw_demuxer = {
@@ -2327,8 +2236,5 @@ AVInputFormat ff_mpegtsraw_demuxer = {
     .read_close     = mpegts_read_close,
     .read_timestamp = mpegts_get_dts,
     .flags          = AVFMT_SHOW_IDS | AVFMT_TS_DISCONT,
-#ifdef USE_SYNCPOINT_SEARCH
-    .read_seek2     = read_seek2,
-#endif
     .priv_class     = &mpegtsraw_class,
 };
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index 07ec62cc43..4bdda4d097 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -76,6 +76,7 @@ typedef struct RTMPContext {
     uint8_t*      flv_data;                   ///< buffer with data for demuxer
     int           flv_size;                   ///< current buffer size
     int           flv_off;                    ///< number of bytes read from current buffer
+    int           flv_nb_packets;             ///< number of flv packets published
     RTMPPacket    out_pkt;                    ///< rtmp packet, created from flv a/v or metadata (for output)
     uint32_t      client_report_size;         ///< number of bytes after which client should report to server
     uint32_t      bytes_read;                 ///< number of bytes read from server
@@ -90,6 +91,7 @@ typedef struct RTMPContext {
     char*         swfurl;                     ///< url of the swf player
     int           server_bw;                  ///< server bandwidth
     int           client_buffer_time;         ///< client buffer time in ms
+    int           flush_interval;             ///< number of packets flushed in the same request (RTMPT only)
 } RTMPContext;
 
 #define PLAYER_KEY_OPEN_PART_LEN 30   ///< length of partial key used for first client digest signing
@@ -1361,9 +1363,14 @@ static int rtmp_write(URLContext *s, const uint8_t *buf, int size)
             rt->flv_size = 0;
             rt->flv_off = 0;
             rt->flv_header_bytes = 0;
+            rt->flv_nb_packets++;
         }
     } while (buf_temp - buf < size);
 
+    if (rt->flv_nb_packets < rt->flush_interval)
+        return size;
+    rt->flv_nb_packets = 0;
+
     /* set stream into nonblocking mode */
     rt->stream->flags |= AVIO_FLAG_NONBLOCK;
 
@@ -1404,6 +1411,7 @@ static const AVOption rtmp_options[] = {
     {"rtmp_buffer", "Set buffer time in milliseconds. The default is 3000.", OFFSET(client_buffer_time), AV_OPT_TYPE_INT, {3000}, 0, INT_MAX, DEC|ENC},
     {"rtmp_conn", "Append arbitrary AMF data to the Connect message", OFFSET(conn), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
     {"rtmp_flashver", "Version of the Flash plugin used to run the SWF player.", OFFSET(flashver), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
+    {"rtmp_flush_interval", "Number of packets flushed in the same request (RTMPT only).", OFFSET(flush_interval), AV_OPT_TYPE_INT, {10}, 0, INT_MAX, ENC},
     {"rtmp_live", "Specify that the media is a live stream.", OFFSET(live), AV_OPT_TYPE_INT, {-2}, INT_MIN, INT_MAX, DEC, "rtmp_live"},
     {"any", "both", 0, AV_OPT_TYPE_CONST, {-2}, 0, 0, DEC, "rtmp_live"},
     {"live", "live stream", 0, AV_OPT_TYPE_CONST, {-1}, 0, 0, DEC, "rtmp_live"},
diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c
index b7240a2d51..3a272e33c7 100644
--- a/libavformat/rtpdec.c
+++ b/libavformat/rtpdec.c
@@ -68,6 +68,7 @@ void av_register_rtp_dynamic_payload_handlers(void)
     ff_register_dynamic_payload_handler(&ff_h263_2000_dynamic_handler);
     ff_register_dynamic_payload_handler(&ff_h263_rfc2190_dynamic_handler);
     ff_register_dynamic_payload_handler(&ff_h264_dynamic_handler);
+    ff_register_dynamic_payload_handler(&ff_ilbc_dynamic_handler);
     ff_register_dynamic_payload_handler(&ff_vorbis_dynamic_handler);
     ff_register_dynamic_payload_handler(&ff_theora_dynamic_handler);
     ff_register_dynamic_payload_handler(&ff_qdm2_dynamic_handler);
diff --git a/libavformat/rtpdec_formats.h b/libavformat/rtpdec_formats.h
index 73ffe1f49e..a0c61a84b9 100644
--- a/libavformat/rtpdec_formats.h
+++ b/libavformat/rtpdec_formats.h
@@ -45,6 +45,7 @@ extern RTPDynamicProtocolHandler ff_h263_1998_dynamic_handler;
 extern RTPDynamicProtocolHandler ff_h263_2000_dynamic_handler;
 extern RTPDynamicProtocolHandler ff_h263_rfc2190_dynamic_handler;
 extern RTPDynamicProtocolHandler ff_h264_dynamic_handler;
+extern RTPDynamicProtocolHandler ff_ilbc_dynamic_handler;
 extern RTPDynamicProtocolHandler ff_mp4a_latm_dynamic_handler;
 extern RTPDynamicProtocolHandler ff_mp4v_es_dynamic_handler;
 extern RTPDynamicProtocolHandler ff_mpeg4_generic_dynamic_handler;
diff --git a/libavformat/rtpdec_ilbc.c b/libavformat/rtpdec_ilbc.c
new file mode 100644
index 0000000000..247c779bfc
--- /dev/null
+++ b/libavformat/rtpdec_ilbc.c
@@ -0,0 +1,73 @@
+/*
+ * RTP iLBC Depacketizer, RFC 3952
+ * Copyright (c) 2012 Martin Storsjo
+ *
+ * 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 "avformat.h"
+#include "rtpdec_formats.h"
+#include "libavutil/avstring.h"
+
+static int ilbc_parse_fmtp(AVStream *stream, PayloadContext *data,
+                           char *attr, char *value)
+{
+    if (!strcmp(attr, "mode")) {
+        int mode = atoi(value);
+        switch (mode) {
+        case 20:
+            stream->codec->block_align = 38;
+            break;
+        case 30:
+            stream->codec->block_align = 50;
+            break;
+        default:
+            av_log(NULL, AV_LOG_ERROR, "Unsupported iLBC mode %d\n", mode);
+            return AVERROR(EINVAL);
+        }
+    }
+    return 0;
+}
+
+static int ilbc_parse_sdp_line(AVFormatContext *s, int st_index,
+                               PayloadContext *data, const char *line)
+{
+    const char *p;
+    AVStream *st;
+
+    if (st_index < 0)
+        return 0;
+    st = s->streams[st_index];
+
+    if (av_strstart(line, "fmtp:", &p)) {
+        int ret = ff_parse_fmtp(st, data, p, ilbc_parse_fmtp);
+        if (ret < 0)
+            return ret;
+        if (!st->codec->block_align) {
+            av_log(s, AV_LOG_ERROR, "No iLBC mode set\n");
+            return AVERROR(EINVAL);
+        }
+    }
+    return 0;
+}
+
+RTPDynamicProtocolHandler ff_ilbc_dynamic_handler = {
+    .enc_name         = "iLBC",
+    .codec_type       = AVMEDIA_TYPE_AUDIO,
+    .codec_id         = CODEC_ID_ILBC,
+    .parse_sdp_a_line = ilbc_parse_sdp_line,
+};
diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c
index e16e610820..f7e2cf0630 100644
--- a/libavformat/rtpenc.c
+++ b/libavformat/rtpenc.c
@@ -74,6 +74,7 @@ static int is_supported(enum CodecID id)
     case CODEC_ID_VP8:
     case CODEC_ID_ADPCM_G722:
     case CODEC_ID_ADPCM_G726:
+    case CODEC_ID_ILBC:
         return 1;
     default:
         return 0;
@@ -187,6 +188,16 @@ static int rtp_write_header(AVFormatContext *s1)
          * 8000, even if the sample rate is 16000. See RFC 3551. */
         avpriv_set_pts_info(st, 32, 1, 8000);
         break;
+    case CODEC_ID_ILBC:
+        if (st->codec->block_align != 38 && st->codec->block_align != 50) {
+            av_log(s1, AV_LOG_ERROR, "Incorrect iLBC block size specified\n");
+            goto fail;
+        }
+        if (!s->max_frames_per_packet)
+            s->max_frames_per_packet = 1;
+        s->max_frames_per_packet = FFMIN(s->max_frames_per_packet,
+                                         s->max_payload_size / st->codec->block_align);
+        goto defaultcase;
     case CODEC_ID_AMR_NB:
     case CODEC_ID_AMR_WB:
         if (!s->max_frames_per_packet)
@@ -395,6 +406,36 @@ static void rtp_send_mpegts_raw(AVFormatContext *s1,
     }
 }
 
+static int rtp_send_ilbc(AVFormatContext *s1, const uint8_t *buf, int size)
+{
+    RTPMuxContext *s = s1->priv_data;
+    AVStream *st = s1->streams[0];
+    int frame_duration = av_get_audio_frame_duration(st->codec, 0);
+    int frame_size = st->codec->block_align;
+    int frames = size / frame_size;
+
+    while (frames > 0) {
+        int n = FFMIN(s->max_frames_per_packet - s->num_frames, frames);
+
+        if (!s->num_frames) {
+            s->buf_ptr = s->buf;
+            s->timestamp = s->cur_timestamp;
+        }
+        memcpy(s->buf_ptr, buf, n * frame_size);
+        frames           -= n;
+        s->num_frames    += n;
+        s->buf_ptr       += n * frame_size;
+        buf              += n * frame_size;
+        s->cur_timestamp += n * frame_duration;
+
+        if (s->num_frames == s->max_frames_per_packet) {
+            ff_rtp_send_data(s1, s->buf, s->buf_ptr - s->buf, 1);
+            s->num_frames = 0;
+        }
+    }
+    return 0;
+}
+
 static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
 {
     RTPMuxContext *s = s1->priv_data;
@@ -483,6 +524,9 @@ static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
     case CODEC_ID_VP8:
         ff_rtp_send_vp8(s1, pkt->data, size);
         break;
+    case CODEC_ID_ILBC:
+        rtp_send_ilbc(s1, pkt->data, size);
+        break;
     default:
         /* better than nothing : send the codec raw data */
         rtp_send_raw(s1, pkt->data, size);
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 891afc92a4..68ca247b00 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -1279,7 +1279,7 @@ int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port,
                      "%s/UDP;multicast", trans_pref);
         }
         if (s->oformat) {
-            av_strlcat(transport, ";mode=receive", sizeof(transport));
+            av_strlcat(transport, ";mode=record", sizeof(transport));
         } else if (rt->server_type == RTSP_SERVER_REAL ||
                    rt->server_type == RTSP_SERVER_WMS)
             av_strlcat(transport, ";mode=play", sizeof(transport));
diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index 5d5e9515f7..352dea0335 100644
--- a/libavformat/sdp.c
+++ b/libavformat/sdp.c
@@ -549,6 +549,12 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
                                          c->sample_rate);
             break;
         }
+        case CODEC_ID_ILBC:
+            av_strlcatf(buff, size, "a=rtpmap:%d iLBC/%d\r\n"
+                                    "a=fmtp:%d mode=%d\r\n",
+                                     payload_type, c->sample_rate,
+                                     payload_type, c->block_align == 38 ? 20 : 30);
+            break;
         default:
             /* Nothing special to do here... */
             break;
diff --git a/libavformat/version.h b/libavformat/version.h
index 0b1bff2764..3b61ea34fc 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 54
-#define LIBAVFORMAT_VERSION_MINOR  8
+#define LIBAVFORMAT_VERSION_MINOR  9
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \