ffmpeg -y -i udp://@:5000 -acodec libmp3lame -ar 48000 -b:a 64k -s 704x480 -vcodec libx264 -maxrate 2000K  -map p:"2" -metadata service_name="CCTV News English" test2.ts        ffmpeg version N-37846-g1fbd905 Copyright (c) 2000-2012 the FFmpeg developers
  built on Feb 15 2012 00:58:33 with gcc 4.5.2
  configuration: --enable-shared --enable-libmp3lame --enable-libvorbis --disable-static --disable-ffserver --disable-avfilter --disable-ffplay --disable-doc --disable-demuxer=mp3 --enable-libx264 --enable-gpl --enable-pthreads --enable-libfaac --enable-nonfree --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
  libavutil      51. 39.100 / 51. 39.100
  libavcodec     54.  1.100 / 54.  1.100
  libavformat    54.  0.100 / 54.  0.100
  libavdevice    53.  4.100 / 53.  4.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
  libpostproc    52.  0.100 / 52.  0.100
[mpegts @ 0x21413a0] Unable to seek back to the start
[mp2 @ 0x21a85c0] Header missing
[mp2 @ 0x218f840] Header missing
[mp2 @ 0x21b4d80] Header missing
[mp3 @ 0x21768a0] Header missing
[mp2 @ 0x219be00] Header missing
[mpegts @ 0x21413a0] Estimating duration from bitrate, this may be inaccurate
Input #0, mpegts, from 'udp://@:5000':
  Duration: N/A, start: 2679.010056, bitrate: 55640 kb/s
  Program 1
    Metadata:
      service_name    : CCTV 4
      service_provider: CCTV
    Stream #0:0[0x200]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 10000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:1[0x28a]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16, 128 kb/s
  Program 2
    Metadata:
      service_name    : CCTV News
      service_provider: CCTV
    Stream #0:2[0x201]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 10000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:3[0x294]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16, 128 kb/s
  Program 3
    Metadata:
      service_name    : CCTV F
      service_provider: CCTV
    Stream #0:4[0x202]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 10000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:5[0x29e]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16, 128 kb/s
  Program 7
    Metadata:
      service_name    : CCTV E
      service_provider: CCTV
    Stream #0:6[0x206]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 10000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:7[0x2c6]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16, 128 kb/s
  Program 8
    Metadata:
      service_name    : CCTV 9 Documentary
      service_provider: CCTV
    Stream #0:8[0x207]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x480 [SAR 20:17 DAR 4:3], 15000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:9[0x2d0]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16, 128 kb/s
[libx264 @ 0x21d5e40] VBV maxrate specified, but no bufsize, ignored
[libx264 @ 0x21d5e40] using cpu capabilities: MMX2 SSE2Fast FastShuffle SSEMisalign LZCNT
[libx264 @ 0x21d5e40] profile High, level 3.0
[mpegts @ 0x21d7420] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
Output #0, mpegts, to 'test2.ts':
  Metadata:
    service_name    : CCTV News English
    encoder         : Lavf54.0.100
    Stream #0:0: Video: h264, yuv420p, 704x480, q=-1--1, 90k tbn, 29.97 tbc
    Stream #0:1: Audio: mp3, 48000 Hz, mono, s16, 64 kb/s
Stream mapping:
  Stream #0:2 -> #0:0 (mpeg2video -> libx264)
  Stream #0:3 -> #0:1 (mp2 -> libmp3lame)
Press [q] to stop, [?] for help
[mp2 @ 0x218f840] Header missing
Error while decoding stream #0:3
[udp @ 0x21418e0] circular_buffer: OVERRUN
PES packet size mismatch.0 size=     101kB time=00:00:02.78 bitrate= 296.0kbits/s dup=1304 drop=0
[mpegts @ 0x21413a0] PES packet size mismatch
    Last message repeated 1 times
^Came= 1415 fps=232 q=29.0 size=     121kB time=00:00:04.08 bitrate= 242.6kbits/s dup=1304 drop=0