Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavformat / mpegts.c

diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index e9b8b3513a28a0a1031b95981c8458a31e2172b3..be558221f2845724df73caaa08335f40f54ca815 100644 (file)
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -2,20 +2,20 @@
  * MPEG2 transport stream (aka DVB) demuxer
  * Copyright (c) 2002-2003 Fabrice Bellard
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -25,6 +25,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/log.h"
 #include "libavutil/dict.h"
+#include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
 #include "libavcodec/bytestream.h"
 #include "avformat.h"
@@ -220,12 +221,23 @@ static void add_pid_to_pmt(MpegTSContext *ts, unsigned int programid, unsigned i
     p->pids[p->nb_pids++] = pid;
 }
 
+static void set_pcr_pid(AVFormatContext *s, unsigned int programid, unsigned int pid)
+{
+    int i;
+    for(i=0; i<s->nb_programs; i++) {
+        if(s->programs[i]->id == programid) {
+            s->programs[i]->pcr_pid = pid;
+            break;
+        }
+    }
+}
+
 /**
- * \brief discard_pid() decides if the pid is to be discarded according
+ * @brief discard_pid() decides if the pid is to be discarded according
  *                      to caller's programs selection
- * \param ts    : - TS context
- * \param pid   : - pid
- * \return 1 if the pid is only comprised in programs that have .discard=AVDISCARD_ALL
+ * @param ts    : - TS context
+ * @param pid   : - pid
+ * @return 1 if the pid is only comprised in programs that have .discard=AVDISCARD_ALL
  *         0 otherwise
  */
 static int discard_pid(MpegTSContext *ts, unsigned int pid)
@@ -560,6 +572,7 @@ static void mpegts_find_stream_type(AVStream *st,
         if (stream_type == types->stream_type) {
             st->codec->codec_type = types->codec_type;
             st->codec->codec_id   = types->codec_id;
+            st->request_probe     = 0;
             return;
         }
     }
@@ -712,10 +725,10 @@ static int mpegts_push_data(MpegTSFilter *filter,
                         code != 0x1ff && code != 0x1f2 && /* program_stream_directory, DSMCC_stream */
                         code != 0x1f8) {                  /* ITU-T Rec. H.222.1 type E stream */
                         pes->state = MPEGTS_PESHEADER;
-                        if (pes->st->codec->codec_id == CODEC_ID_NONE) {
+                        if (pes->st->codec->codec_id == CODEC_ID_NONE && !pes->st->request_probe) {
                             av_dlog(pes->stream, "pid=%x stream_type=%x probing\n",
                                     pes->pid, pes->stream_type);
-                            pes->st->codec->codec_id = CODEC_ID_PROBE;
+                            pes->st->request_probe= 1;
                         }
                     } else {
                         pes->state = MPEGTS_PAYLOAD;
@@ -992,6 +1005,9 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
             stream_type == STREAM_TYPE_PRIVATE_DATA)
             mpegts_find_stream_type(st, st->codec->codec_tag, REGD_types);
         break;
+    case 0x52: /* stream identifier descriptor */
+        st->stream_identifier = 1 + get8(pp, desc_end);
+        break;
     default:
         break;
     }
@@ -1032,6 +1048,7 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
     if (pcr_pid < 0)
         return;
     add_pid_to_pmt(ts, h->id, pcr_pid);
+    set_pcr_pid(ts->stream, h->id, pcr_pid);
 
     av_dlog(ts->stream, "pcr_pid=0x%x\n", pcr_pid);
 
@@ -1130,6 +1147,7 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
     SectionHeader h1, *h = &h1;
     const uint8_t *p, *p_end;
     int sid, pmt_pid;
+    AVProgram *program;
 
     av_dlog(ts->stream, "PAT:\n");
     hex_dump_debug(ts->stream, (uint8_t *)section, section_len);
@@ -1141,6 +1159,8 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
     if (h->tid != PAT_TID)
         return;
 
+    ts->stream->ts_id = h->id;
+
     clear_programs(ts);
     for(;;) {
         sid = get16(&p, p_end);
@@ -1155,7 +1175,9 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
         if (sid == 0x0000) {
             /* NIT info */
         } else {
-            av_new_program(ts->stream, sid);
+            program = av_new_program(ts->stream, sid);
+            program->program_num = sid;
+            program->pmt_pid = pmt_pid;
             if (ts->pids[pmt_pid])
                 mpegts_close_filter(ts, ts->pids[pmt_pid]);
             mpegts_open_section_filter(ts, pmt_pid, pmt_cb, ts, 1);
@@ -1332,7 +1354,7 @@ static int mpegts_resync(AVFormatContext *s)
 
     for(i = 0;i < MAX_RESYNC_SIZE; i++) {
         c = avio_r8(pb);
-        if (pb->eof_reached)
+        if (url_feof(pb))
             return -1;
         if (c == 0x47) {
             avio_seek(pb, -1, SEEK_CUR);
@@ -1460,7 +1482,7 @@ static int mpegts_read_header(AVFormatContext *s,
 {
     MpegTSContext *ts = s->priv_data;
     AVIOContext *pb = s->pb;
-    uint8_t buf[5*1024];
+    uint8_t buf[8*1024];
     int len;
     int64_t pos;
 
@@ -1481,8 +1503,10 @@ static int mpegts_read_header(AVFormatContext *s,
     if (len != sizeof(buf))
         goto fail;
     ts->raw_packet_size = get_packet_size(buf, sizeof(buf));
-    if (ts->raw_packet_size <= 0)
-        goto fail;
+    if (ts->raw_packet_size <= 0) {
+        av_log(s, AV_LOG_WARNING, "Could not detect TS packet size, defaulting to non-FEC/DVHS\n");
+        ts->raw_packet_size = TS_PACKET_SIZE;
+    }
     ts->stream = s;
     ts->auto_guess = 0;