From xine-devel Thu May 25 22:21:49 2006 From: Mohamad Al-Saqer Date: Thu, 25 May 2006 22:21:49 +0000 To: xine-devel Subject: [xine-devel] asf (mms and mmsh) multiple bitrate streams bug Message-Id: <200605251721.49201.msaqer () iastate ! edu> X-MARC-Message: https://marc.info/?l=xine-devel&m=114859573511803 Hi every one This bug is the same as the bug reported in the sf website (bug #1229328) but here with more verbose (by adding xprintf lines in mmsh.c, mms.c and demus_asf.c where appropriate) I used the links listed in the bug report and traced the reason for why xine does not choose the stream with highest bitrate supported by bandwidth. Rather, it chooses the best stream reported by the header segment with guid = GUID_ASF_STREAM_PROPERTIES. For some reason, only one audio stream and one video stream are supplied at this guid. While in the guid=GUID_ASF_STREAM_BITRATE_PROPERTIES, there might be more streams reported. When xine tries to choose the best stream according to bandwith, it only searches the streams supplied in the GUID_ASF_STREAM_PROPERTIES guids. In the following verbose, the extra lines I added start with sqr and have the following structure sqr: file name: function name: guidvalue: [extra verbose] Following is a verbose for a case of mms stream which has 8 streams. My extra verbose lines are from added code lines in functions: interp_asf_header (in src/input/mms.c) and asf_read_header (in demuxers/demux_asf.c) ---------------------------- subset of VERBOSE --------------------- $ xine --verbose=2 mms://wmedia.siol.net/tvpika/live gui_xine_open_and_play(): mrl: 'mms://wmedia.siol.net/tvpika/live', sub 'NONE', start_pos 0, start_time 0, av_offset 0, spu_offset 0. gnome_vfs init_input_class gnome-vfs not initialised xine: found input plugin : mms streaming input plugin Resolving host 'wmedia.siol.net' at port '1755' sqr: mms.c: interp_asf_header: GUID_unknown object sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 1, bitrate 69783, bitrates_pos 754 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 2, bitrate 53767, bitrates_pos 760 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 3, bitrate 21436, bitrates_pos 766 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 4, bitrate 13436, bitrates_pos 772 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 5, bitrate 749609, bitrates_pos 778 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 6, bitrate 265609, bitrates_pos 784 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 7, bitrate 99609, bitrates_pos 790 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 8, bitrate 38841, bitrates_pos 796 sqr: mms.c: interp_asf_header: GUID_ASF_FILE_PROPERTIES sqr: mms.c: interp_asf_header: GUID_unknown object sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_PROPERTIES: GUID_ASF_AUDIO_MEDIA sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_PROPERTIES: stream_id 4 sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_PROPERTIES: GUID_ASF_VIDEO_MEDIA sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_PROPERTIES: GUID_ASF_JFIF_MEDIA sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_PROPERTIES: GUID_ASF_DEGRADABLE_JPEG_MEDIA sqr: mms.c: interp_asf_header: GUID_ASF_STREAM_PROPERTIES: stream_id 8 sqr: mms.c: interp_asf_header: GUID_unknown object sqr: mms.c: interp_asf_header: GUID_unknown object sqr: mms.c: interp_asf_header: GUID_unknown object . . . load_plugins: probing demux 'asf' xine: found demuxer plugin: ASF demux plugin sqr: demux_asf.c: asf_read_header: GUID_ASF_CONTENT_DESCRIPTION sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 1, bitrate: 69783 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 2, bitrate: 53767 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 3, bitrate: 21436 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 4, bitrate: 13436 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 5, bitrate: 749609 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 6, bitrate: 265609 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 7, bitrate: 99609 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_BITRATE_PROPERTIES: stream_id 8, bitrate: 38841 169125744 sqr: demux_asf.c: asf_read_header: GUID_ASF_FILE_PROPERTIES demux_asf: unknown GUID: 0xf8a2bde5, 0xe191, 0x4626, { 0xbf, 0xaf, 0x2e, 0x18, 0xcf, 0x46, 0x47, 0xe1 } sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_PROPERTIES sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_PROPERTIES: GUID_ASF_AUDIO_MEDIA: sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_PROPERTIES: stream_id 4 demux_asf: audio conceal interleave detected (1 x 1 x 320) sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_PROPERTIES sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_PROPERTIES: GUID_ASF_VIDEO_MEDIA: sqr: demux_asf.c: asf_read_header: GUID_ASF_STREAM_PROPERTIES: stream_id 8 sqr: demux_asf.c: asf_read_header: GUID_ASF_DATA net_buf_ctrl: nbc_put_cb: starts buffering net_buf_ctrl: nbc_set_speed_pause set_speed 0 demux_asf: stream: 4, bitrate 13436 bps demux_asf: stream: 8, bitrate 38841 bps demux_asf: video stream_id: 8, audio stream_id: 4 net_buf_ctrl: vid 0% 0.0s 0kbps 0, aud 0% 0.0s 13kbps 0, buf on net_buf_ctrl: vid 0% 0.0s 38kbps 0, aud 0% 0.0s 13kbps 0, buf on video discontinuity #1, type is 0, disc_off 0 waiting for audio discontinuity #1 audio discontinuity #1, type is 0, disc_off 0 waiting for in_discontinuity update #1 vpts adjusted with prebuffer to 231787 net_buf_ctrl: nbc_set_speed_pause set_speed 0 . . . ------------------------- END VERBOSE ---------------------- ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! 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