#6073: QSV (h264) encodes via CPU instead of GPU ---------------------------------+-------------------------------------- Reporter: milanc | Type: defect Status: new | Priority: normal Component: avcodec | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+-------------------------------------- Summary of the bug: QSV h264_qsv encodes via CPU instead of GPU (without HW accel.).
In output "[h264_qsv @ 0x352d1e0] Encoder will work with partial HW acceleration" Test via Intel Media SDK passed OK. Problem is on version: N-83042-g107b306 (and some older) But in older version N-82007-g1a9513b qsv works fine (I see load in intel_gpu_top). How to reproduce: {{{ % ffmpeg -y -v debug -i "udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1" -map v:0 -profile:v main -c:v h264_qsv -look_ahead 0 -an /a.mp4 }}} Full output: {{{ /# ffmpeg -y -v debug -i "udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1" -map v:0 -profile:v main -c:v h264_qsv -look_ahead 0 -an /a.mp4 ffmpeg version N-83042-g107b306 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609 configuration: --prefix=./ffmpeg-build --pkg-config-flags=--static --bindir=/root/bin --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvpx --enable-nvenc --enable-libmfx --enable-version3 --enable- pthreads --enable-runtime-cpudetect --disable-ffserver --enable- libfreetype --enable-filter=drawtext libavutil 55. 43.100 / 55. 43.100 libavcodec 57. 71.101 / 57. 71.101 libavformat 57. 62.100 / 57. 62.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 68.100 / 6. 68.100 libswscale 4. 3.101 / 4. 3.101 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 Splitting the commandline. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'. Reading option '-i' ... matched as input url with argument 'udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1'. Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument 'v:0'. Reading option '-profile:v' ... matched as option 'profile' (set profile) with argument 'main'. Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'h264_qsv'. Reading option '-look_ahead' ... matched as AVOption 'look_ahead' with argument '0'. Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'. Reading option '/a.mp4' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option y (overwrite output files) with argument 1. Applying option v (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input url udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1. Successfully parsed a group of options. Opening an input file: udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1. [udp @ 0x3338a80] No default whitelist set [udp @ 0x3338a80] end receive buffer size reported is 131072 [mpegts @ 0x3338160] Format mpegts probed with size=2048 and score=50 [mpegts @ 0x3338160] stream=0 stream_type=2 pid=301 prog_reg_desc= [mpegts @ 0x3338160] stream=1 stream_type=3 pid=311 prog_reg_desc= [mpegts @ 0x3338160] stream=2 stream_type=3 pid=313 prog_reg_desc= [mpegts @ 0x3338160] stream=3 stream_type=6 pid=321 prog_reg_desc= [mpegts @ 0x3338160] Before avformat_find_stream_info() pos: 0 bytes read:123704 seeks:0 nb_streams:4 [mpegts @ 0x3338160] parser not found for codec dvb_teletext, packets or times may be invalid. Last message repeated 1 times [mpeg2video @ 0x335d080] Invalid frame dimensions 0x0. Last message repeated 9 times [mpegts @ 0x3338160] max_analyze_duration 5000000 reached at 5000000 microseconds st:3 [mpegts @ 0x3338160] After avformat_find_stream_info() pos: 1932640 bytes read:1933204 seeks:0 frames:663 Input #0, mpegts, from 'udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1': Duration: N/A, start: 4999.876978, bitrate: N/A Program 259 Stream #0:0[0x301], 128, 1/90000: Video: mpeg2video (Main), 1 reference frame ([2][0][0][0] / 0x0002), yuv420p(tv, top first, left), 720x576 [SAR 64:45 DAR 16:9], 0/1, 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x311](cze), 208, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s Stream #0:2[0x313](cze), 200, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16p, 64 kb/s (visual impaired) Stream #0:3[0x321](cze), 127, 1/90000: Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Successfully opened the file. Parsing a group of options: output url /a.mp4. Applying option map (set input stream mapping) with argument v:0. Applying option profile:v (set profile) with argument main. Applying option c:v (codec name) with argument h264_qsv. Applying option an (disable audio) with argument 1. Successfully parsed a group of options. Opening an output file: /a.mp4. [file @ 0x352dc20] Setting default whitelist 'file,crypto' Successfully opened the file. detected 8 logical cores [graph 0 input from stream 0:0 @ 0x356e340] Setting 'video_size' to value '720x576' [graph 0 input from stream 0:0 @ 0x356e340] Setting 'pix_fmt' to value '0' [graph 0 input from stream 0:0 @ 0x356e340] Setting 'time_base' to value '1/90000' [graph 0 input from stream 0:0 @ 0x356e340] Setting 'pixel_aspect' to value '64/45' [graph 0 input from stream 0:0 @ 0x356e340] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0x356e340] Setting 'frame_rate' to value '25/1' [graph 0 input from stream 0:0 @ 0x356e340] w:720 h:576 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:64/45 sws_param:flags=2 [format @ 0x3592d00] compat: called with args=[nv12|qsv] [format @ 0x3592d00] Setting 'pix_fmts' to value 'nv12|qsv' [auto-inserted scaler 0 @ 0x3596de0] Setting 'flags' to value 'bicubic' [auto-inserted scaler 0 @ 0x3596de0] w:iw h:ih flags:'bicubic' interl:0 [format @ 0x3592d00] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format' [AVFilterGraph @ 0x3591980] query_formats: 4 queried, 2 merged, 1 already done, 0 delayed [auto-inserted scaler 0 @ 0x3596de0] w:720 h:576 fmt:yuv420p sar:64/45 -> w:720 h:576 fmt:nv12 sar:64/45 flags:0x4 [h264_qsv @ 0x352d1e0] Initialized an internal MFX session using hardware accelerated implementation [h264_qsv @ 0x352d1e0] Using the average variable bitrate (AVBR) ratecontrol method [h264_qsv @ 0x352d1e0] Encoder will work with partial HW acceleration [h264_qsv @ 0x352d1e0] profile: main; level: 30 [h264_qsv @ 0x352d1e0] GopPicSize: 250; GopRefDist: 4; GopOptFlag: closed ; IdrInterval: 0 [h264_qsv @ 0x352d1e0] TargetUsage: 4; RateControlMethod: AVBR [h264_qsv @ 0x352d1e0] TargetKbps: 1000; Accuracy: 0; Convergence: 0 [h264_qsv @ 0x352d1e0] NumSlice: 0; NumRefFrame: 3 [h264_qsv @ 0x352d1e0] RateDistortionOpt: OFF [h264_qsv @ 0x352d1e0] RecoveryPointSEI: unknown IntRefType: 0; IntRefCycleSize: 0; IntRefQPDelta: 0 [h264_qsv @ 0x352d1e0] MaxFrameSize: 0; MaxSliceSize: 0; [h264_qsv @ 0x352d1e0] BitrateLimit: unknown; MBBRC: unknown; ExtBRC: unknown [h264_qsv @ 0x352d1e0] Trellis: auto [h264_qsv @ 0x352d1e0] RepeatPPS: unknown; NumMbPerSlice: 0; LookAheadDS: unknown [h264_qsv @ 0x352d1e0] AdaptiveI: unknown; AdaptiveB: unknown; BRefType: auto [h264_qsv @ 0x352d1e0] MinQPI: 0; MaxQPI: 0; MinQPP: 0; MaxQPP: 0; MinQPB: 0; MaxQPB: 0 [h264_qsv @ 0x352d1e0] Entropy coding: CABAC; MaxDecFrameBuffering: 0 [h264_qsv @ 0x352d1e0] NalHrdConformance: unknown; SingleSeiNalUnit: ON; VuiVclHrdParameters: OFF VuiNalHrdParameters: OFF Output #0, mp4, to '/a.mp4': Metadata: encoder : Lavf57.62.100 Stream #0:0, 0, 1/12800: Video: h264 (h264_qsv), 1 reference frame ([33][0][0][0] / 0x0021), nv12(left), 720x576 [SAR 64:45 DAR 16:9], 0/1, q=2-31, 1000 kb/s, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc57.71.101 h264_qsv Side data: cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: -1 Stream mapping: Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (h264_qsv)) Press [q] to stop, [?] for help cur_dts is invalid (this is harmless if it occurs once at the start per stream) Last message repeated 3 times [mpegts @ 0x3338160] Correcting start time by 656000 cur_dts is invalid (this is harmless if it occurs once at the start per stream) Last message repeated 65 times *** 13 dup! frame= 202 fps= 63 q=-0.0 Lsize= 931kB time=00:00:07.96 bitrate= 957.6kbits/s dup=13 drop=0 speed= 2.5x video:927kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.387599% Input file #0 (udp://@239.255.0.103:1234?fifo_size=1000000&overrun_nonfatal=1): Input stream #0:0 (video): 202 packets read (2361857 bytes); 190 frames decoded; Input stream #0:1 (audio): 208 packets read (120172 bytes); Input stream #0:2 (audio): 200 packets read (38750 bytes); Input stream #0:3 (subtitle): 128 packets read (113792 bytes); Total: 738 packets (2634571 bytes) demuxed Output file #0 (/a.mp4): Output stream #0:0 (video): 202 frames encoded; 202 packets muxed (949177 bytes); Total: 202 packets (949177 bytes) muxed 190 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x3364800] Statistics: 34 seeks, 230 writeouts [AVIOContext @ 0x3358fa0] Statistics: 3026800 bytes read, 0 seeks Exiting normally, received signal 2. }}} Other user reported the same issue here: http://ffmpeg.gusari.org/viewtopic.php?f=11&t=3236 -- Ticket URL: <https://trac.ffmpeg.org/ticket/6073> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://ffmpeg.org/mailman/listinfo/ffmpeg-trac