Merge remote-tracking branch 'qatar/master'

* qatar/master: (25 commits)
  rtpenc: Add support for G726 audio
  rtpdec: Interpret the different G726 names as bits_per_coded_sample
  rtpenc: Change rtp_send_samples to handle sample sizes other than even bytes
  rtpenc: Cast a rescaling parameter to int64_t
  h264: cap max has_b_frames at MAX_DELAYED_PIC_COUNT - 1.
  ARM: fix indentation in ff_dsputil_init_neon()
  ARM: NEON put/avg_pixels8/16 cosmetics
  ARM: add remaining NEON avg_pixels8/16 functions
  ARM: clean up NEON put/avg_pixels macros
  fate: split acodec-pcm into individual tests
  swscale: #include "libavutil/mathematics.h"
  pmpdec: don't use deprecated av_set_pts_info.
  rv34: align temporary block of "dct" coefs
  Add PlayStation Portable PMP format demuxer
  proto: Realign struct initializers
  proto: Use .priv_data_size to allocate the private context
  mmsh: Properly clean up if the second ffurl_alloc failed
  rtmp: Clean up properly if the handshake failed
  md5proto: Remove the get_file_handle function
  applehttpproto: Use the close function if the open function fails
  ...

Conflicts:
	libavcodec/vble.c
	libavformat/mmsh.c
	libavformat/pmpdec.c
	libavformat/udp.c
	tests/ref/acodec/pcm

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

17 files changed, 116 insertions, 155 deletions

diff --git a/libavformat/applehttpproto.c b/libavformat/applehttpproto.c
index 8218c0e05f..8295ccc5f5 100644
--- a/libavformat/applehttpproto.c
+++ b/libavformat/applehttpproto.c
@@ -174,19 +174,25 @@ fail:
     return ret;
 }
 
+static int applehttp_close(URLContext *h)
+{
+    AppleHTTPContext *s = h->priv_data;
+
+    free_segment_list(s);
+    free_variant_list(s);
+    ffurl_close(s->seg_hd);
+    return 0;
+}
+
 static int applehttp_open(URLContext *h, const char *uri, int flags)
 {
-    AppleHTTPContext *s;
+    AppleHTTPContext *s = h->priv_data;
     int ret, i;
     const char *nested_url;
 
     if (flags & AVIO_FLAG_WRITE)
         return AVERROR(ENOSYS);
 
-    s = av_mallocz(sizeof(AppleHTTPContext));
-    if (!s)
-        return AVERROR(ENOMEM);
-    h->priv_data = s;
     h->is_streamed = 1;
 
     if (av_strstart(uri, "applehttp+", &nested_url)) {
@@ -229,7 +235,7 @@ static int applehttp_open(URLContext *h, const char *uri, int flags)
     return 0;
 
 fail:
-    av_free(s);
+    applehttp_close(h);
     return ret;
 }
 
@@ -287,21 +293,11 @@ retry:
     goto start;
 }
 
-static int applehttp_close(URLContext *h)
-{
-    AppleHTTPContext *s = h->priv_data;
-
-    free_segment_list(s);
-    free_variant_list(s);
-    ffurl_close(s->seg_hd);
-    av_free(s);
-    return 0;
-}
-
 URLProtocol ff_applehttp_protocol = {
-    .name      = "applehttp",
-    .url_open  = applehttp_open,
-    .url_read  = applehttp_read,
-    .url_close = applehttp_close,
-    .flags     = URL_PROTOCOL_FLAG_NESTED_SCHEME,
+    .name           = "applehttp",
+    .url_open       = applehttp_open,
+    .url_read       = applehttp_read,
+    .url_close      = applehttp_close,
+    .flags          = URL_PROTOCOL_FLAG_NESTED_SCHEME,
+    .priv_data_size = sizeof(AppleHTTPContext),
 };
diff --git a/libavformat/cache.c b/libavformat/cache.c
index c2bddf5f6d..d94cf5fbac 100644
--- a/libavformat/cache.c
+++ b/libavformat/cache.c
@@ -53,13 +53,7 @@ static int cache_open(URLContext *h, const char *arg, int flags)
 {
     int access;
     const char *buffername;
-    Context *c;
-
-    c = av_mallocz(sizeof(Context));
-    if (!c) {
-        return AVERROR(ENOMEM);
-    }
-    h->priv_data = c;
+    Context *c= h->priv_data;
 
     av_strstart(arg, "cache:", &arg);
 
@@ -130,8 +124,6 @@ static int cache_close(URLContext *h)
     close(c->fd);
     ffurl_close(c->inner);
 
-    av_freep(&h->priv_data);
-
     return 0;
 }
 
@@ -141,4 +133,5 @@ URLProtocol ff_cache_protocol = {
     .url_read            = cache_read,
     .url_seek            = cache_seek,
     .url_close           = cache_close,
+    .priv_data_size      = sizeof(Context),
 };
diff --git a/libavformat/concat.c b/libavformat/concat.c
index 81f37383b9..f97354c788 100644
--- a/libavformat/concat.c
+++ b/libavformat/concat.c
@@ -50,7 +50,6 @@ static av_cold int concat_close(URLContext *h)
         err |= ffurl_close(nodes[i].uc);
 
     av_freep(&data->nodes);
-    av_freep(&h->priv_data);
 
     return err < 0 ? -1 : 0;
 }
@@ -62,16 +61,11 @@ static av_cold int concat_open(URLContext *h, const char *uri, int flags)
     int64_t size;
     size_t  len, i;
     URLContext *uc;
-    struct concat_data  *data;
+    struct concat_data  *data = h->priv_data;
     struct concat_nodes *nodes;
 
     av_strstart(uri, "concat:", &uri);
 
-    /* creating data */
-    if (!(data = av_mallocz(sizeof(*data))))
-        return AVERROR(ENOMEM);
-    h->priv_data = data;
-
     for (i = 0, len = 1; uri[i]; i++)
         if (uri[i] == *AV_CAT_SEPARATOR)
             /* integer overflow */
@@ -81,7 +75,6 @@ static av_cold int concat_open(URLContext *h, const char *uri, int flags)
             }
 
     if (!(nodes = av_malloc(sizeof(*nodes) * len))) {
-        av_freep(&h->priv_data);
         return AVERROR(ENOMEM);
     } else
         data->nodes = nodes;
@@ -191,9 +184,10 @@ static int64_t concat_seek(URLContext *h, int64_t pos, int whence)
 }
 
 URLProtocol ff_concat_protocol = {
-    .name      = "concat",
-    .url_open  = concat_open,
-    .url_read  = concat_read,
-    .url_seek  = concat_seek,
-    .url_close = concat_close,
+    .name           = "concat",
+    .url_open       = concat_open,
+    .url_read       = concat_read,
+    .url_seek       = concat_seek,
+    .url_close      = concat_close,
+    .priv_data_size = sizeof(struct concat_data),
 };
diff --git a/libavformat/gopher.c b/libavformat/gopher.c
index 6a829c8ce5..e1acf5039c 100644
--- a/libavformat/gopher.c
+++ b/libavformat/gopher.c
@@ -72,24 +72,17 @@ static int gopher_close(URLContext *h)
         ffurl_close(s->hd);
         s->hd = NULL;
     }
-    av_freep(&h->priv_data);
     return 0;
 }
 
 static int gopher_open(URLContext *h, const char *uri, int flags)
 {
-    GopherContext *s;
+    GopherContext *s = h->priv_data;
     char hostname[1024], auth[1024], path[1024], buf[1024];
     int port, err;
 
     h->is_streamed = 1;
 
-    s = av_malloc(sizeof(GopherContext));
-    if (!s) {
-        return AVERROR(ENOMEM);
-    }
-    h->priv_data = s;
-
     /* needed in any case to build the host string */
     av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
                  path, sizeof(path), uri);
@@ -122,9 +115,10 @@ static int gopher_read(URLContext *h, uint8_t *buf, int size)
 
 
 URLProtocol ff_gopher_protocol = {
-    .name      = "gopher",
-    .url_open  = gopher_open,
-    .url_read  = gopher_read,
-    .url_write = gopher_write,
-    .url_close = gopher_close,
+    .name           = "gopher",
+    .url_open       = gopher_open,
+    .url_read       = gopher_read,
+    .url_write      = gopher_write,
+    .url_close      = gopher_close,
+    .priv_data_size = sizeof(GopherContext),
 };
diff --git a/libavformat/http.c b/libavformat/http.c
index 2e4e8c235d..f7e0b5cc8c 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -93,7 +93,7 @@ static int http_open_cnx(URLContext *h)
 {
     const char *path, *proxy_path, *lower_proto = "tcp", *local_path;
     char hostname[1024], hoststr[1024], proto[10];
-    char auth[1024], proxyauth[1024];
+    char auth[1024], proxyauth[1024] = "";
     char path1[1024];
     char buf[1024], urlbuf[1024];
     int port, use_proxy, err, location_changed = 0, redirects = 0;
diff --git a/libavformat/librtmp.c b/libavformat/librtmp.c
index 01b6c3deb0..018ea0f4b0 100644
--- a/libavformat/librtmp.c
+++ b/libavformat/librtmp.c
@@ -52,7 +52,6 @@ static int rtmp_close(URLContext *s)
     RTMP *r = s->priv_data;
 
     RTMP_Close(r);
-    av_free(r);
     return 0;
 }
 
@@ -70,13 +69,9 @@ static int rtmp_close(URLContext *s)
  */
 static int rtmp_open(URLContext *s, const char *uri, int flags)
 {
-    RTMP *r;
+    RTMP *r = s->priv_data;
     int rc;
 
-    r = av_mallocz(sizeof(RTMP));
-    if (!r)
-        return AVERROR(ENOMEM);
-
     switch (av_log_get_level()) {
     default:
     case AV_LOG_FATAL:   rc = RTMP_LOGCRIT;    break;
@@ -103,11 +98,9 @@ static int rtmp_open(URLContext *s, const char *uri, int flags)
         goto fail;
     }
 
-    s->priv_data   = r;
     s->is_streamed = 1;
     return 0;
 fail:
-    av_free(r);
     return rc;
 }
 
@@ -167,7 +160,8 @@ URLProtocol ff_rtmp_protocol = {
     .url_close           = rtmp_close,
     .url_read_pause      = rtmp_read_pause,
     .url_read_seek       = rtmp_read_seek,
-    .url_get_file_handle = rtmp_get_file_handle
+    .url_get_file_handle = rtmp_get_file_handle,
+    .priv_data_size      = sizeof(RTMP),
 };
 
 URLProtocol ff_rtmpt_protocol = {
@@ -178,7 +172,8 @@ URLProtocol ff_rtmpt_protocol = {
     .url_close           = rtmp_close,
     .url_read_pause      = rtmp_read_pause,
     .url_read_seek       = rtmp_read_seek,
-    .url_get_file_handle = rtmp_get_file_handle
+    .url_get_file_handle = rtmp_get_file_handle,
+    .priv_data_size      = sizeof(RTMP),
 };
 
 URLProtocol ff_rtmpe_protocol = {
@@ -189,7 +184,8 @@ URLProtocol ff_rtmpe_protocol = {
     .url_close           = rtmp_close,
     .url_read_pause      = rtmp_read_pause,
     .url_read_seek       = rtmp_read_seek,
-    .url_get_file_handle = rtmp_get_file_handle
+    .url_get_file_handle = rtmp_get_file_handle,
+    .priv_data_size      = sizeof(RTMP),
 };
 
 URLProtocol ff_rtmpte_protocol = {
@@ -200,7 +196,8 @@ URLProtocol ff_rtmpte_protocol = {
     .url_close           = rtmp_close,
     .url_read_pause      = rtmp_read_pause,
     .url_read_seek       = rtmp_read_seek,
-    .url_get_file_handle = rtmp_get_file_handle
+    .url_get_file_handle = rtmp_get_file_handle,
+    .priv_data_size      = sizeof(RTMP),
 };
 
 URLProtocol ff_rtmps_protocol = {
@@ -211,5 +208,6 @@ URLProtocol ff_rtmps_protocol = {
     .url_close           = rtmp_close,
     .url_read_pause      = rtmp_read_pause,
     .url_read_seek       = rtmp_read_seek,
-    .url_get_file_handle = rtmp_get_file_handle
+    .url_get_file_handle = rtmp_get_file_handle,
+    .priv_data_size      = sizeof(RTMP),
 };
diff --git a/libavformat/md5proto.c b/libavformat/md5proto.c
index 05ee9d366a..f7c8b78fee 100644
--- a/libavformat/md5proto.c
+++ b/libavformat/md5proto.c
@@ -79,16 +79,11 @@ static int md5_close(URLContext *h)
     return err;
 }
 
-static int md5_get_handle(URLContext *h)
-{
-    return (intptr_t)h->priv_data;
-}
 
 URLProtocol ff_md5_protocol = {
     .name                = "md5",
     .url_open            = md5_open,
     .url_write           = md5_write,
     .url_close           = md5_close,
-    .url_get_file_handle = md5_get_handle,
     .priv_data_size      = PRIV_SIZE,
 };
diff --git a/libavformat/mmsh.c b/libavformat/mmsh.c
index bc93722f1a..e92b74fc0a 100644
--- a/libavformat/mmsh.c
+++ b/libavformat/mmsh.c
@@ -69,7 +69,6 @@ static int mmsh_close(URLContext *h)
         ffurl_close(mms->mms_hd);
     av_free(mms->streams);
     av_free(mms->asf_header);
-    av_freep(&h->priv_data);
     return 0;
 }
 
@@ -218,12 +217,9 @@ static int mmsh_open_internal(URLContext *h, const char *uri, int flags, int tim
     char httpname[256], path[256], host[128];
     char *stream_selection = NULL;
     char headers[1024];
-    MMSHContext *mmsh;
+    MMSHContext *mmsh = h->priv_data;
     MMSContext *mms;
 
-    mmsh = h->priv_data = av_mallocz(sizeof(MMSHContext));
-    if (!h->priv_data)
-        return AVERROR(ENOMEM);
     mmsh->request_seq = h->is_streamed = 1;
     mms = &mmsh->mms;
     av_strlcpy(mmsh->location, uri, sizeof(mmsh->location));
@@ -263,9 +259,9 @@ static int mmsh_open_internal(URLContext *h, const char *uri, int flags, int tim
     // close the socket and then reopen it for sending the second play request.
     ffurl_close(mms->mms_hd);
     memset(headers, 0, sizeof(headers));
-    if (ffurl_alloc(&mms->mms_hd, httpname, AVIO_FLAG_READ,
-                    &h->interrupt_callback) < 0) {
-        return AVERROR(EIO);
+    if ((err = ffurl_alloc(&mms->mms_hd, httpname, AVIO_FLAG_READ,
+                           &h->interrupt_callback)) < 0) {
+        goto fail;
     }
     stream_selection = av_mallocz(mms->stream_num * 19 + 1);
     if (!stream_selection)
@@ -403,10 +399,11 @@ static int64_t mmsh_seek(URLContext *h, int64_t pos, int whence)
 }
 
 URLProtocol ff_mmsh_protocol = {
-    .name      = "mmsh",
-    .url_open  = mmsh_open,
-    .url_read  = mmsh_read,
-    .url_seek  = mmsh_seek,
-    .url_close = mmsh_close,
+    .name           = "mmsh",
+    .url_open       = mmsh_open,
+    .url_read       = mmsh_read,
+    .url_seek       = mmsh_seek,
+    .url_close      = mmsh_close,
     .url_read_seek  = mmsh_read_seek,
+    .priv_data_size = sizeof(MMSHContext),
 };
diff --git a/libavformat/mmst.c b/libavformat/mmst.c
index 0a728eb35f..a6fe696f5f 100644
--- a/libavformat/mmst.c
+++ b/libavformat/mmst.c
@@ -470,7 +470,6 @@ static int mms_close(URLContext *h)
     /* free all separately allocated pointers in mms */
     av_free(mms->streams);
     av_free(mms->asf_header);
-    av_freep(&h->priv_data);
 
     return 0;
 }
@@ -502,15 +501,12 @@ static void clear_stream_buffers(MMSContext *mms)
 
 static int mms_open(URLContext *h, const char *uri, int flags)
 {
-    MMSTContext *mmst;
+    MMSTContext *mmst = h->priv_data;
     MMSContext *mms;
     int port, err;
     char tcpname[256];
 
     h->is_streamed = 1;
-    mmst = h->priv_data = av_mallocz(sizeof(MMSTContext));
-    if (!h->priv_data)
-        return AVERROR(ENOMEM);
     mms = &mmst->mms;
 
     // only for MMS over TCP, so set proto = NULL
@@ -624,8 +620,9 @@ static int mms_read(URLContext *h, uint8_t *buf, int size)
 }
 
 URLProtocol ff_mmst_protocol = {
-    .name      = "mmst",
-    .url_open  = mms_open,
-    .url_read  = mms_read,
-    .url_close = mms_close,
+    .name           = "mmst",
+    .url_open       = mms_open,
+    .url_read       = mms_read,
+    .url_close      = mms_close,
+    .priv_data_size = sizeof(MMSTContext),
 };
diff --git a/libavformat/pmpdec.c b/libavformat/pmpdec.c
index 88b8998ad9..3d54484314 100644
--- a/libavformat/pmpdec.c
+++ b/libavformat/pmpdec.c
@@ -38,7 +38,8 @@ static int pmp_probe(AVProbeData *p) {
     return 0;
 }
 
-static int pmp_header(AVFormatContext *s, AVFormatParameters *ap) {
+static int pmp_header(AVFormatContext *s, AVFormatParameters *ap)
+{
     PMPContext *pmp = s->priv_data;
     AVIOContext *pb = s->pb;
     int tb_num, tb_den;
@@ -93,7 +94,6 @@ static int pmp_header(AVFormatContext *s, AVFormatParameters *ap) {
         AVStream *ast = avformat_new_stream(s, NULL);
         if (!ast)
             return AVERROR(ENOMEM);
-        ast->id = i;
         ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
         ast->codec->codec_id = audio_codec_id;
         ast->codec->channels = channels;
@@ -111,7 +111,8 @@ static int pmp_header(AVFormatContext *s, AVFormatParameters *ap) {
     return 0;
 }
 
-static int pmp_packet(AVFormatContext *s, AVPacket *pkt) {
+static int pmp_packet(AVFormatContext *s, AVPacket *pkt)
+{
     PMPContext *pmp = s->priv_data;
     AVIOContext *pb = s->pb;
     int ret = 0;
@@ -128,14 +129,18 @@ static int pmp_packet(AVFormatContext *s, AVPacket *pkt) {
         av_fast_malloc(&pmp->packet_sizes,
                        &pmp->packet_sizes_alloc,
                        num_packets * sizeof(*pmp->packet_sizes));
+        if (!pmp->packet_sizes_alloc) {
+            av_log(s, AV_LOG_ERROR, "Cannot (re)allocate packet buffer\n");
+            return AVERROR(ENOMEM);
+        }
         for (i = 0; i < num_packets; i++)
             pmp->packet_sizes[i] = avio_rl32(pb);
     }
     ret = av_get_packet(pb, pkt, pmp->packet_sizes[pmp->current_packet]);
     if (ret >= 0) {
         ret = 0;
-        // FIXME: this is a hack that should be remove once
-        // compute_pkt_fields can handle
+        // FIXME: this is a hack that should be removed once
+        // compute_pkt_fields() can handle timestamps properly
         if (pmp->cur_stream == 0)
             pkt->dts = s->streams[0]->cur_dts++;
         pkt->stream_index = pmp->cur_stream;
@@ -146,8 +151,8 @@ static int pmp_packet(AVFormatContext *s, AVPacket *pkt) {
     return ret;
 }
 
-static int pmp_seek(AVFormatContext *s, int stream_index,
-                     int64_t ts, int flags) {
+static int pmp_seek(AVFormatContext *s, int stream_index, int64_t ts, int flags)
+{
     PMPContext *pmp = s->priv_data;
     pmp->cur_stream = 0;
     // fallback to default seek now
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index 8935f56369..8f57d1bb59 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -784,7 +784,6 @@ static int rtmp_close(URLContext *h)
 
     av_freep(&rt->flv_data);
     ffurl_close(rt->stream);
-    av_free(rt);
     return 0;
 }
 
@@ -799,16 +798,12 @@ static int rtmp_close(URLContext *h)
  */
 static int rtmp_open(URLContext *s, const char *uri, int flags)
 {
-    RTMPContext *rt;
+    RTMPContext *rt = s->priv_data;
     char proto[8], hostname[256], path[1024], *fname;
     uint8_t buf[2048];
     int port;
     int ret;
 
-    rt = av_mallocz(sizeof(RTMPContext));
-    if (!rt)
-        return AVERROR(ENOMEM);
-    s->priv_data = rt;
     rt->is_input = !(flags & AVIO_FLAG_WRITE);
 
     av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port,
@@ -826,7 +821,7 @@ static int rtmp_open(URLContext *s, const char *uri, int flags)
 
     rt->state = STATE_START;
     if (rtmp_handshake(s, rt))
-        return -1;
+        goto fail;
 
     rt->chunk_size = 128;
     rt->state = STATE_HANDSHAKED;
@@ -997,9 +992,10 @@ static int rtmp_write(URLContext *s, const uint8_t *buf, int size)
 }
 
 URLProtocol ff_rtmp_protocol = {
-    .name      = "rtmp",
-    .url_open  = rtmp_open,
-    .url_read  = rtmp_read,
-    .url_write = rtmp_write,
-    .url_close = rtmp_close,
+    .name           = "rtmp",
+    .url_open       = rtmp_open,
+    .url_read       = rtmp_read,
+    .url_write      = rtmp_write,
+    .url_close      = rtmp_close,
+    .priv_data_size = sizeof(RTMPContext),
 };
diff --git a/libavformat/rtpdec_g726.c b/libavformat/rtpdec_g726.c
index 35ca9061fd..20450d8dfb 100644
--- a/libavformat/rtpdec_g726.c
+++ b/libavformat/rtpdec_g726.c
@@ -27,10 +27,8 @@ static int g726_ ## bitrate ##_init(AVFormatContext *s, int st_index, PayloadCon
     AVStream *stream = s->streams[st_index]; \
     AVCodecContext *codec = stream->codec; \
 \
-    codec->bit_rate = bitrate*1000; \
-    if (codec->sample_rate) \
-        codec->bits_per_coded_sample = \
-            av_clip((codec->bit_rate + codec->sample_rate/2) / codec->sample_rate, 2, 5); \
+    codec->bits_per_coded_sample = bitrate/8; \
+    codec->bit_rate = codec->bits_per_coded_sample * codec->sample_rate; \
 \
     return 0; \
 } \
diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c
index 73ac76fae7..ac9b32cc0c 100644
--- a/libavformat/rtpenc.c
+++ b/libavformat/rtpenc.c
@@ -72,6 +72,7 @@ static int is_supported(enum CodecID id)
     case CODEC_ID_THEORA:
     case CODEC_ID_VP8:
     case CODEC_ID_ADPCM_G722:
+    case CODEC_ID_ADPCM_G726:
         return 1;
     default:
         return 0;
@@ -121,7 +122,7 @@ static int rtp_write_header(AVFormatContext *s1)
             if (st->codec->frame_size == 0) {
                 av_log(s1, AV_LOG_ERROR, "Cannot respect max delay: frame size = 0\n");
             } else {
-                s->max_frames_per_packet = av_rescale_rnd(s1->max_delay, st->codec->sample_rate, AV_TIME_BASE * st->codec->frame_size, AV_ROUND_DOWN);
+                s->max_frames_per_packet = av_rescale_rnd(s1->max_delay, st->codec->sample_rate, AV_TIME_BASE * (int64_t)st->codec->frame_size, AV_ROUND_DOWN);
             }
         }
         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
@@ -248,14 +249,16 @@ void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m)
 /* send an integer number of samples and compute time stamp and fill
    the rtp send buffer before sending. */
 static void rtp_send_samples(AVFormatContext *s1,
-                             const uint8_t *buf1, int size, int sample_size)
+                             const uint8_t *buf1, int size, int sample_size_bits)
 {
     RTPMuxContext *s = s1->priv_data;
     int len, max_packet_size, n;
+    /* Calculate the number of bytes to get samples aligned on a byte border */
+    int aligned_samples_size = sample_size_bits/av_gcd(sample_size_bits, 8);
 
-    max_packet_size = (s->max_payload_size / sample_size) * sample_size;
-    /* not needed, but who nows */
-    if ((size % sample_size) != 0)
+    max_packet_size = (s->max_payload_size / aligned_samples_size) * aligned_samples_size;
+    /* Not needed, but who knows. Don't check if samples aren't an even number of bytes. */
+    if ((sample_size_bits % 8) == 0 && ((8 * size) % sample_size_bits) != 0)
         av_abort();
     n = 0;
     while (size > 0) {
@@ -267,7 +270,7 @@ static void rtp_send_samples(AVFormatContext *s1,
         s->buf_ptr += len;
         buf1 += len;
         size -= len;
-        s->timestamp = s->cur_timestamp + n / sample_size;
+        s->timestamp = s->cur_timestamp + n * 8 / sample_size_bits;
         ff_rtp_send_data(s1, s->buf, s->buf_ptr - s->buf, 0);
         n += (s->buf_ptr - s->buf);
     }
@@ -394,19 +397,24 @@ static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
     case CODEC_ID_PCM_ALAW:
     case CODEC_ID_PCM_U8:
     case CODEC_ID_PCM_S8:
-        rtp_send_samples(s1, pkt->data, size, 1 * st->codec->channels);
+        rtp_send_samples(s1, pkt->data, size, 8 * st->codec->channels);
         break;
     case CODEC_ID_PCM_U16BE:
     case CODEC_ID_PCM_U16LE:
     case CODEC_ID_PCM_S16BE:
     case CODEC_ID_PCM_S16LE:
-        rtp_send_samples(s1, pkt->data, size, 2 * st->codec->channels);
+        rtp_send_samples(s1, pkt->data, size, 16 * st->codec->channels);
         break;
     case CODEC_ID_ADPCM_G722:
         /* The actual sample size is half a byte per sample, but since the
          * stream clock rate is 8000 Hz while the sample rate is 16000 Hz,
-         * the correct parameter for send_samples is 1 byte per stream clock. */
-        rtp_send_samples(s1, pkt->data, size, 1 * st->codec->channels);
+         * the correct parameter for send_samples_bits is 8 bits per stream
+         * clock. */
+        rtp_send_samples(s1, pkt->data, size, 8 * st->codec->channels);
+        break;
+    case CODEC_ID_ADPCM_G726:
+        rtp_send_samples(s1, pkt->data, size,
+                         st->codec->bits_per_coded_sample * st->codec->channels);
         break;
     case CODEC_ID_MP2:
     case CODEC_ID_MP3:
diff --git a/libavformat/rtpproto.c b/libavformat/rtpproto.c
index 41fb7317bb..b6f2a56146 100644
--- a/libavformat/rtpproto.c
+++ b/libavformat/rtpproto.c
@@ -137,7 +137,7 @@ static void build_udp_url(char *buf, int buf_size,
 
 static int rtp_open(URLContext *h, const char *uri, int flags)
 {
-    RTPContext *s;
+    RTPContext *s = h->priv_data;
     int rtp_port, rtcp_port,
         ttl, connect,
         local_rtp_port, local_rtcp_port, max_packet_size;
@@ -146,11 +146,6 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
     char path[1024];
     const char *p;
 
-    s = av_mallocz(sizeof(RTPContext));
-    if (!s)
-        return AVERROR(ENOMEM);
-    h->priv_data = s;
-
     av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &rtp_port,
                  path, sizeof(path), uri);
     /* extract parameters */
@@ -214,7 +209,6 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
         ffurl_close(s->rtp_hd);
     if (s->rtcp_hd)
         ffurl_close(s->rtcp_hd);
-    av_free(s);
     return AVERROR(EIO);
 }
 
@@ -291,7 +285,6 @@ static int rtp_close(URLContext *h)
 
     ffurl_close(s->rtp_hd);
     ffurl_close(s->rtcp_hd);
-    av_free(s);
     return 0;
 }
 
@@ -337,4 +330,5 @@ URLProtocol ff_rtp_protocol = {
     .url_write           = rtp_write,
     .url_close           = rtp_close,
     .url_get_file_handle = rtp_get_file_handle,
+    .priv_data_size      = sizeof(RTPContext),
 };
diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index 13c5ba6629..5def15d2a3 100644
--- a/libavformat/sdp.c
+++ b/libavformat/sdp.c
@@ -517,6 +517,14 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
                                          payload_type,
                                          8000, c->channels);
             break;
+        case CODEC_ID_ADPCM_G726: {
+            if (payload_type >= RTP_PT_PRIVATE)
+                av_strlcatf(buff, size, "a=rtpmap:%d G726-%d/%d\r\n",
+                                         payload_type,
+                                         c->bits_per_coded_sample*8,
+                                         c->sample_rate);
+            break;
+        }
         default:
             /* Nothing special to do here... */
             break;
diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index f882fc0dee..1aeceb9e02 100644
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -39,7 +39,7 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
 {
     struct addrinfo hints, *ai, *cur_ai;
     int port, fd = -1;
-    TCPContext *s = NULL;
+    TCPContext *s = h->priv_data;
     int listen_socket = 0;
     const char *p;
     char buf[256];
@@ -135,12 +135,6 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
             goto fail;
         }
     }
-    s = av_malloc(sizeof(TCPContext));
-    if (!s) {
-        freeaddrinfo(ai);
-        return AVERROR(ENOMEM);
-    }
-    h->priv_data = s;
     h->is_streamed = 1;
     s->fd = fd;
     freeaddrinfo(ai);
@@ -193,7 +187,6 @@ static int tcp_close(URLContext *h)
 {
     TCPContext *s = h->priv_data;
     closesocket(s->fd);
-    av_free(s);
     return 0;
 }
 
@@ -210,4 +203,5 @@ URLProtocol ff_tcp_protocol = {
     .url_write           = tcp_write,
     .url_close           = tcp_close,
     .url_get_file_handle = tcp_get_file_handle,
+    .priv_data_size      = sizeof(TCPContext),
 };
diff --git a/libavformat/udp.c b/libavformat/udp.c
index ee5b304769..a0d127c614 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -381,7 +381,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
 {
     char hostname[1024], localaddr[1024] = "";
     int port, udp_fd = -1, tmp, bind_ret = -1;
-    UDPContext *s = NULL;
+    UDPContext *s = h->priv_data;
     int is_output;
     const char *p;
     char buf[256];
@@ -394,11 +394,6 @@ static int udp_open(URLContext *h, const char *uri, int flags)
 
     is_output = !(flags & AVIO_FLAG_READ);
 
-    s = av_mallocz(sizeof(UDPContext));
-    if (!s)
-        return AVERROR(ENOMEM);
-
-    h->priv_data = s;
     s->ttl = 16;
     s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
 
@@ -533,7 +528,6 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     if (udp_fd >= 0)
         closesocket(udp_fd);
     av_fifo_free(s->fifo);
-    av_free(s);
     return AVERROR(EIO);
 }
 
@@ -614,7 +608,6 @@ static int udp_close(URLContext *h)
         udp_leave_multicast_group(s->udp_fd, (struct sockaddr *)&s->dest_addr);
     closesocket(s->udp_fd);
     av_fifo_free(s->fifo);
-    av_free(s);
     return 0;
 }
 
@@ -625,4 +618,5 @@ URLProtocol ff_udp_protocol = {
     .url_write           = udp_write,
     .url_close           = udp_close,
     .url_get_file_handle = udp_get_file_handle,
+    .priv_data_size      = sizeof(UDPContext),
 };