#3185: ffprobe do not handle HEVC correctly ---------------------------------+--------------------------------------- Reporter: figgis | Type: defect Status: new | Priority: normal Component: FFprobe | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+--------------------------------------- Summary of the bug: How to reproduce: {{{ I encoded some frames using the HM-encoder. This is what the decoder says: $ ./TAppDecoderStatic -b foreman_352x288.hevc HM software: Decoder Version [12.1][Linux][GCC 4.7.3][64 bit] POC 0 TId: 0 ( I-SLICE, QP 32 ) [DT 0.020] [L0 ] [L1 ] [:,,,(unk)] POC 1 TId: 0 ( P-SLICE, QP 35 ) [DT 0.000] [L0 0 ] [L1 ] [:,,,(unk)] POC 2 TId: 0 ( B-SLICE, QP 34 ) [DT 0.000] [L0 1 0 ] [L1 1 0 ] [:,,,(unk)] POC 3 TId: 0 ( B-SLICE, QP 35 ) [DT 0.010] [L0 2 1 0 ] [L1 2 1 0 ] [:,,,(unk)] POC 4 TId: 0 ( B-SLICE, QP 33 ) [DT 0.010] [L0 3 2 1 0 ] [L1 3 2 1 0 ] [:,,,(unk)] Total Time: 0.040 sec. This is the output from ffprobe for the first frame: $ ./ffprobe -show_frames ~/src/jctvc-hm/bin/foreman_352x288.hevc ffprobe version N-58684-gf068aed Copyright (c) 2007-2013 the FFmpeg developers built on Nov 30 2013 23:52:44 with gcc 4.7 (Ubuntu/Linaro 4.7.3-1ubuntu1) configuration: --enable-libx264 --enable-gpl --enable-libmp3lame libavutil 52. 56.100 / 52. 56.100 libavcodec 55. 44.100 / 55. 44.100 libavformat 55. 21.102 / 55. 21.102 libavdevice 55. 5.102 / 55. 5.102 libavfilter 3. 91.100 / 3. 91.100 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Input #0, hevc, from '/home/fp/src/jctvc-hm/bin/foreman_352x288.hevc': Duration: N/A, bitrate: N/A Stream #0:0: Video: hevc (Main), yuv420p(tv), 352x288, 25 fps, 25 tbr, 1200k tbn, 25 tbc [FRAME] media_type=video key_frame=1 pkt_pts=0 pkt_pts_time=0.000000 pkt_dts=0 pkt_dts_time=0.000000 pkt_duration=48000 pkt_duration_time=0.040000 pkt_pos=0 pkt_size=3695 width=352 height=288 pix_fmt=yuv420p sample_aspect_ratio=N/A pict_type=? coded_picture_number=0 display_picture_number=0 interlaced_frame=0 top_field_first=0 repeat_pict=0 [/FRAME] in the above, pict_type do not display the correct frame-type, also coded_picture_number and display_picture_number always displays as zero. HEVC reference decoder/encoder uses the slize-type do determine the type, i.e. I, P, B. Valid code in the reference decoder is Lib/TLibDecoder/TDecGop.cpp:219 Char c = (pcSlice->isIntra() ? 'I' : pcSlice->isInterP() ? 'P' : 'B'); if (!pcSlice->isReferenced()) c += 32; //-- For time output for each slice printf("\nPOC %4d TId: %1d ( %c-SLICE, QP%3d ) ", pcSlice->getPOC(), pcSlice->getTLayer(), c, pcSlice->getSliceQp() ); See e.g. table 7.7, page 77. in HEVC-standard http://www.itu.int/rec/T-REC-H.265-201304-I/en }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/3185> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker