On 1/9/18 2:41 PM, 刘歧 wrote: >>> >> >> If only copy command of the document, it’s ok, >> If input string by myself, It’s have problem, cannot be used. >> >> >> liuqideMacBook-Pro:xxx liuqi$ ./ffmpeg -re -f lavfi -i color=red -g 25 >> -b:v 1000k -b:a 64k -a53cc 1 -f hls -cc_stream_map >> "ccgroup:cc,instreamid:CC1,language:en" -master_pl_name master.m3u8 >> live/out.m3u8 >> ffmpeg version N-89757-g42a5fe340f Copyright (c) 2000-2018 the FFmpeg >> developers >> built with Apple LLVM version 9.0.0 (clang-900.0.39.2) >> configuration: --enable-fontconfig --enable-gpl --enable-libass >> --enable-libbluray --enable-libfreetype --enable-libmp3lame >> --enable-libspeex --enable-libx264 --enable-libx265 --enable-libfdk-aac >> --enable-version3 --cc='ccache gcc' --enable-nonfree --enable-videotoolbox >> libavutil 56. 7.100 / 56. 7.100 >> libavcodec 58. 9.100 / 58. 9.100 >> libavformat 58. 3.100 / 58. 3.100 >> libavdevice 58. 0.100 / 58. 0.100 >> libavfilter 7. 11.101 / 7. 11.101 >> libswscale 5. 0.101 / 5. 0.101 >> libswresample 3. 0.101 / 3. 0.101 >> libpostproc 55. 0.100 / 55. 0.100 >> Input #0, lavfi, from 'color=red': >> Duration: N/A, start: 0.000000, bitrate: N/A >> Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR >> 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc >> Stream mapping: >> Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264)) >> Press [q] to stop, [?] for help >> [libx264 @ 0x7fadae801600] using SAR=1/1 >> [libx264 @ 0x7fadae801600] using cpu capabilities: MMX2 SSE2Fast SSSE3 >> SSE4.2 AVX >> [libx264 @ 0x7fadae801600] profile High, level 2.0 >> [libx264 @ 0x7fadae801600] 264 - core 148 r2694 3b70645 - H.264/MPEG-4 AVC >> codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: >> cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 >> psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 >> cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 >> lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 >> bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 >> direct=1 weightb=1 open_gop=0 weightp=2 keyint=25 keyint_min=2 scenecut=40 >> intra_refresh=0 rc_lookahead=25 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 >> qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 >> [hls @ 0x7fadae81ec00] Opening 'live/out0.ts' for writing >> Output #0, hls, to 'live/out.m3u8': >> Metadata: >> encoder : Lavf58.3.100 >> Stream #0:0: Video: h264 (libx264), yuv420p, 320x240 [SAR 1:1 DAR 4:3], >> q=-1--1, 1000 kb/s, 25 fps, 90k tbn, 25 tbc >> Metadata: >> encoder : Lavc58.9.100 libx264 >> Side data: >> cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: -1 >> [hls @ 0x7fadae81ec00] Opening 'live/out1.ts' for writingte=N/A speed=0.514x >> [hls @ 0x7fadae81ec00] Opening 'live/out.m3u8.tmp' for writing >> [hls @ 0x7fadae81ec00] Opening 'live/master.m3u8' for writing >> [hls @ 0x7fadae81ec00] Opening 'live/out2.ts' for writingte=N/A speed=0.71x >> [hls @ 0x7fadae81ec00] Opening 'live/out.m3u8.tmp' for writing >> [hls @ 0x7fadae81ec00] Opening 'live/out3.ts' for writingte=N/A speed=0.794x >> [hls @ 0x7fadae81ec00] Opening 'live/out.m3u8.tmp' for writing >> [hls @ 0x7fadae81ec00] Opening 'live/out4.ts' for writingte=N/A speed=0.809x >> [hls @ 0x7fadae81ec00] Opening 'live/out.m3u8.tmp' for writing >> [hls @ 0x7fadae81ec00] Opening 'live/out.m3u8.tmp' for writing >> frame= 202 fps= 25 q=-1.0 Lsize=N/A time=00:00:08.00 bitrate=N/A speed=0.99x >> video:5kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing >> overhead: unknown >> [libx264 @ 0x7fadae801600] frame I:9 Avg QP: 0.44 size: 72 >> [libx264 @ 0x7fadae801600] frame P:49 Avg QP: 0.14 size: 22 >> [libx264 @ 0x7fadae801600] frame B:144 Avg QP: 0.36 size: 16 >> [libx264 @ 0x7fadae801600] consecutive B-frames: 5.0% 0.0% 0.0% 95.0% >> [libx264 @ 0x7fadae801600] mb I I16..4: 100.0% 0.0% 0.0% >> [libx264 @ 0x7fadae801600] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.0% >> 0.0% 0.0% 0.0% 0.0% skip:100.0% >> [libx264 @ 0x7fadae801600] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% >> 0.0% 0.0% direct: 0.0% skip:100.0% >> [libx264 @ 0x7fadae801600] final ratefactor: -27.54 >> [libx264 @ 0x7fadae801600] 8x8 transform intra:0.0% >> [libx264 @ 0x7fadae801600] coded y,uvDC,uvAC intra: 0.0% 0.3% 0.0% inter: >> 0.0% 0.0% 0.0% >> [libx264 @ 0x7fadae801600] i16 v,h,dc,p: 93% 0% 7% 0% >> [libx264 @ 0x7fadae801600] i8c dc,h,v,p: 100% 0% 0% 0% >> [libx264 @ 0x7fadae801600] Weighted P-Frames: Y:0.0% UV:0.0% >> [libx264 @ 0x7fadae801600] kb/s:4.05 >> >> >> >> liuqideMacBook-Pro:xxx liuqi$ ./ffmpeg -re -f lavfi -i color=red -g 25 >> -b:v 1000k -b:a 64k -a53cc 1 -f hls -cc_stream_map >> "closecgroup:cc,instreamid:CC1,language:en" -master_pl_name master.m3u8 >> live/out.m3u8 >> ffmpeg version N-89757-g42a5fe340f Copyright (c) 2000-2018 the FFmpeg >> developers >> built with Apple LLVM version 9.0.0 (clang-900.0.39.2) >> configuration: --enable-fontconfig --enable-gpl --enable-libass >> --enable-libbluray --enable-libfreetype --enable-libmp3lame >> --enable-libspeex --enable-libx264 --enable-libx265 --enable-libfdk-aac >> --enable-version3 --cc='ccache gcc' --enable-nonfree --enable-videotoolbox >> libavutil 56. 7.100 / 56. 7.100 >> libavcodec 58. 9.100 / 58. 9.100 >> libavformat 58. 3.100 / 58. 3.100 >> libavdevice 58. 0.100 / 58. 0.100 >> libavfilter 7. 11.101 / 7. 11.101 >> libswscale 5. 0.101 / 5. 0.101 >> libswresample 3. 0.101 / 3. 0.101 >> libpostproc 55. 0.100 / 55. 0.100 >> Input #0, lavfi, from 'color=red': >> Duration: N/A, start: 0.000000, bitrate: N/A >> Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR >> 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc >> Stream mapping: >> Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264)) >> Press [q] to stop, [?] for help >> [libx264 @ 0x7fb463005800] using SAR=1/1 >> [libx264 @ 0x7fb463005800] using cpu capabilities: MMX2 SSE2Fast SSSE3 >> SSE4.2 AVX >> [libx264 @ 0x7fb463005800] profile High, level 2.0 >> [libx264 @ 0x7fb463005800] 264 - core 148 r2694 3b70645 - H.264/MPEG-4 AVC >> codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: >> cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 >> psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 >> cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 >> lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 >> bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 >> direct=1 weightb=1 open_gop=0 weightp=2 keyint=25 keyint_min=2 scenecut=40 >> intra_refresh=0 rc_lookahead=25 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 >> qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 >> [hls @ 0x7fb46383bc00] Invalid keyval closecgroup:cc >> [hls @ 0x7fb46383bc00] Variant stream info update failed with status ffffffea >> Could not write header for output file #0 (incorrect codec parameters ?): >> Invalid argument >> Error initializing output stream 0:0 -- >> [libx264 @ 0x7fb463005800] final ratefactor: 17.61 >> Conversion failed! >> liuqideMacBook-Pro:xxx liuqi$ >> >> > > > I cannot sure use -cc_stream_map_ccgroup option is ok, because the ccgroup > string is not standard, maybe it can be defined bu user. > Maybe two ways: > 1. use -cc_stream_map_ccgroup ? this way is defined the name by ffmpeg, > cannot modify. > 2. parse the closed captions group string by KeyValue way? maybe this is > better.
Actually, these requirements have been already handled. The parsing is happening based on key value pairs. The keys are ‘ccgroup’, ‘instreamid’, ‘language’. The values for these keys can be set after ‘:’ as given the examples in the patch. I am assuming you are trying to set ccgroup name as closecgroup. In that case, please modify the command as below. Because, the string ‘ccgroup’ is a key value, whatever string that comes after ‘ccgroup:’ is the cc group name. ./ffmpeg -re -f lavfi -i color=red -g 25 -b:v 1000k -b:a 64k -a53cc 1 -f hls -cc_stream_map "ccgroup:closecgroup,instreamid:CC1,language:en" -master_pl_name master.m3u8 live/out.m3u8 To clarify further, consider user wants to set cc group name as ‘mycaptions’, instream id as ‘SERVICE60’ language as Spanish, in that case, the map string would be -cc_stream_map "ccgroup:mycaptions,instreamid:SERVICE60,language:sp" > > Thanks > > Steven > > > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
