[FFmpeg-trac] #7080(undetermined:new): ffmpeg issue with NVENC and keyframes when encoding interlaced video
FFmpeg
trac at avcodec.org
Sun Mar 11 13:55:17 EET 2018
#7080: ffmpeg issue with NVENC and keyframes when encoding interlaced video
-------------------------------------+-------------------------------------
Reporter: malakudi | Type: defect
Status: new | Priority: normal
Component: | Version: 3.4
undetermined | Blocked By:
Keywords: nvenc | Reproduced by developer: 0
interlaced ildct keyframe |
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: When encoding interlaced H264 video with NVENC codec,
there is an issue with keyframes which affects hls output or flv rtmp
output. It doesn't affect file output. Issue is similar to the one
originally reported in ticket 5440.
How to reproduce:
{{{
ffmpeg -f mpegts -i sample.ts -flags +ildct+ilme -vcodec h264_nvenc
-preset slow -b:v 2200k -profile:v high -level 4.1 -c:a aac -ac 2 -b:a
128k -f hls -hls_time 8 playlist.m3u8
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
configuration: --disable-decoder=amrnb --disable-decoder=libopenjpeg
--disable-mips32r2 --disable-mips32r6 --disable-mips64r6 --disable-mipsdsp
--disable-mipsdspr2 --disable-mipsfpu --disable-msa --disable-libopencv
--disable-podpages --disable-stripping --enable-avfilter --enable-
avresample --enable-gcrypt --enable-gnutls --enable-gpl --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio
--enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-
libkvazaar --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-
libopenmpt --enable-libopus --enable-libpulse --enable-librubberband
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx265
--enable-libxvid --enable-libzvbi --enable-nonfree --enable-opengl
--enable-openssl --enable-postproc --enable-pthreads --enable-shared
--enable-version3 --enable-libwebp --incdir=/usr/include/x86_64-linux-gnu
--libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened
--enable-frei0r --enable-chromaprint --enable-libx264 --enable-libiec61883
--enable-libdc1394 --enable-vaapi --disable-opencl --enable-libmfx
--disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mpegts, from 'sample.ts':
Duration: 00:01:02.56, start: 1.400000, bitrate: 13795 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], Closed
Captions, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
Hz, stereo, fltp, 384 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_nvenc))
Stream #0:1 -> #0:1 (ac3 (native) -> aac (native))
Press [q] to stop, [?] for help
[hls @ 0x5563975f08c0] Opening 'playlist0.ts' for writing
Output #0, hls, to 'playlist.m3u8':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (h264_nvenc) (High), yuv420p, 1920x1080 [SAR
1:1 DAR 16:9], q=-1--1, 2200 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/2200000 buffer size: 4400000
vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.107.100 aac
[hls @ 0x5563975f08c0] Opening 'playlist.m3u8.tmp' for writing/A dup=36
drop=0 speed=3.07x
frame= 1564 fps= 76 q=36.0 Lsize=N/A time=00:01:02.52 bitrate=N/A dup=36
drop=0 speed=3.06x
video:16977kB audio:945kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: unknown
[aac @ 0x556397828420] Qavg: 1400.956
}}}
ffmpeg creates hls with only one segment although it should split to
keyframe and create 7 segments. The single file created does not have
keyframes as can be seen from command:
{{{
ffprobe -show_frames playlist0.ts 2> /dev/null | grep pict_type=I | wc -l
0
}}}
If run same command without +ildct+ilme, then all is ok, as can be seen in
following command:
{{{
ffmpeg -f mpegts -i sample.ts -vcodec h264_nvenc -preset slow -b:v 2200k
-profile:v high -level 4.1 -c:a aac -ac 2 -b:a 128k -f hls -hls_time 8
playlist.m3u8
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
configuration: --disable-decoder=amrnb --disable-decoder=libopenjpeg
--disable-mips32r2 --disable-mips32r6 --disable-mips64r6 --disable-mipsdsp
--disable-mipsdspr2 --disable-mipsfpu --disable-msa --disable-libopencv
--disable-podpages --disable-stripping --enable-avfilter --enable-
avresample --enable-gcrypt --enable-gnutls --enable-gpl --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio
--enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-
libkvazaar --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-
libopenmpt --enable-libopus --enable-libpulse --enable-librubberband
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx265
--enable-libxvid --enable-libzvbi --enable-nonfree --enable-opengl
--enable-openssl --enable-postproc --enable-pthreads --enable-shared
--enable-version3 --enable-libwebp --incdir=/usr/include/x86_64-linux-gnu
--libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened
--enable-frei0r --enable-chromaprint --enable-libx264 --enable-libiec61883
--enable-libdc1394 --enable-vaapi --disable-opencl --enable-libmfx
--disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mpegts, from 'sample.ts':
Duration: 00:01:02.56, start: 1.400000, bitrate: 13795 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], Closed
Captions, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
Hz, stereo, fltp, 384 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_nvenc))
Stream #0:1 -> #0:1 (ac3 (native) -> aac (native))
Press [q] to stop, [?] for help
[hls @ 0x55f2a7a25c20] Opening 'playlist0.ts' for writing
Output #0, hls, to 'playlist.m3u8':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (h264_nvenc) (High), yuv420p, 1920x1080 [SAR
1:1 DAR 16:9], q=-1--1, 2200 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/2200000 buffer size: 4400000
vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.107.100 aac
[hls @ 0x55f2a7a25c20] Opening 'playlist1.ts' for writingate=N/A dup=36
drop=0 speed= 5.2x
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x55f2a7a25c20] Opening 'playlist2.ts' for writingate=N/A dup=36
drop=0 speed=5.55x
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x55f2a7a25c20] Opening 'playlist3.ts' for writingate=N/A dup=36
drop=0 speed= 5.6x
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x55f2a7a25c20] Opening 'playlist4.ts' for writingate=N/A dup=36
drop=0 speed=5.67x
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x55f2a7a25c20] Opening 'playlist5.ts' for writingate=N/A dup=36
drop=0 speed=5.67x
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x55f2a7a25c20] Opening 'playlist6.ts' for writingate=N/A dup=36
drop=0 speed=5.69x
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x55f2a7a25c20] Opening 'playlist.m3u8.tmp' for writing
frame= 1564 fps=141 q=33.0 Lsize=N/A time=00:01:02.52 bitrate=N/A dup=36
drop=0 speed=5.64x
video:16605kB audio:945kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: unknown
[aac @ 0x55f2a7ac9e40] Qavg: 1400.956
}}}
As can be seen, it creates 7 segments, all having one keyframe, as can be
seen from next command:
{{{
for f in `ls playlist*ts` ; do ffprobe -show_frames $f 2> /dev/null | grep
pict_type=I | wc -l ; done1
1
1
1
1
1
1
}}}
Creating interlaced output with libx264 works as expected, in next
command:
{{{
ffmpeg -f mpegts -i sample.ts -flags +ildct+ilme -vcodec libx264 -preset
slow -b:v 2200k -profile:v high -level 4.1 -c:a aac -ac 2 -b:a 128k -f hls
-hls_time 8 -hls_playlist_type vod playlist.m3u8
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
configuration: --disable-decoder=amrnb --disable-decoder=libopenjpeg
--disable-mips32r2 --disable-mips32r6 --disable-mips64r6 --disable-mipsdsp
--disable-mipsdspr2 --disable-mipsfpu --disable-msa --disable-libopencv
--disable-podpages --disable-stripping --enable-avfilter --enable-
avresample --enable-gcrypt --enable-gnutls --enable-gpl --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio
--enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-
libkvazaar --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-
libopenmpt --enable-libopus --enable-libpulse --enable-librubberband
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx265
--enable-libxvid --enable-libzvbi --enable-nonfree --enable-opengl
--enable-openssl --enable-postproc --enable-pthreads --enable-shared
--enable-version3 --enable-libwebp --incdir=/usr/include/x86_64-linux-gnu
--libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened
--enable-frei0r --enable-chromaprint --enable-libx264 --enable-libiec61883
--enable-libdc1394 --enable-vaapi --disable-opencl --enable-libmfx
--disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mpegts, from 'sample.ts':
Duration: 00:01:02.56, start: 1.400000, bitrate: 13795 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], Closed
Captions, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
Hz, stereo, fltp, 384 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (ac3 (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x564f648148c0] interlace + weightp is not implemented
[libx264 @ 0x564f648148c0] using SAR=1/1
[libx264 @ 0x564f648148c0] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x564f648148c0] profile High, level 4.1
[libx264 @ 0x564f648148c0] 264 - core 155 - H.264/MPEG-4 AVC codec -
Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1
ref=4 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=8 psy=1
psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=2 8x8dct=1
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=tff
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=3 weightb=1 open_gop=0 weightp=0 keyint=250 keyint_min=25
scenecut=40 intra_refresh=0 rc_lookahead=50 rc=abr mbtree=1 bitrate=2200
ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[hls @ 0x564f64772d00] Opening 'playlist0.ts' for writing
Output #0, hls, to 'playlist.m3u8':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (libx264), yuv420p, 1920x1080 [SAR 1:1 DAR
16:9], q=-1--1, 2200 kb/s, 25 fps, 90k tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/2200000 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.107.100 aac
[hls @ 0x564f64772d00] Opening 'playlist1.ts' for writingate=N/A dup=36
drop=0 speed=1.39x
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x564f64772d00] Opening 'playlist2.ts' for writingate=N/A dup=36
drop=0 speed=1.23x
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x564f64772d00] Opening 'playlist3.ts' for writingate=N/A dup=36
drop=0 speed=1.18x
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x564f64772d00] Opening 'playlist4.ts' for writingate=N/A dup=36
drop=0 speed=1.16x
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x564f64772d00] Opening 'playlist5.ts' for writingate=N/A dup=36
drop=0 speed=1.14x
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x564f64772d00] Opening 'playlist6.ts' for writingate=N/A dup=36
drop=0 speed=1.11x
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
[hls @ 0x564f64772d00] Opening 'playlist.m3u8.tmp' for writing
frame= 1564 fps= 27 q=-1.0 Lsize=N/A time=00:01:02.44 bitrate=N/A dup=36
drop=0 speed=1.09x
video:16944kB audio:945kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: unknown
[libx264 @ 0x564f648148c0] frame I:7 Avg QP:23.51 size:176528
[libx264 @ 0x564f648148c0] frame P:403 Avg QP:26.40 size: 26468
[libx264 @ 0x564f648148c0] frame B:1154 Avg QP:32.62 size: 4721
[libx264 @ 0x564f648148c0] consecutive B-frames: 0.9% 1.5% 1.9% 95.7%
[libx264 @ 0x564f648148c0] mb I I16..4: 22.8% 41.5% 35.7%
[libx264 @ 0x564f648148c0] mb P I16..4: 3.9% 2.6% 0.7% P16..4: 35.7%
8.6% 5.5% 0.0% 0.0% skip:43.0%
[libx264 @ 0x564f648148c0] mb B I16..4: 0.3% 0.1% 0.0% B16..8: 34.2%
1.8% 0.2% direct: 0.9% skip:62.6% L0:43.9% L1:53.1% BI: 3.1%
[libx264 @ 0x564f648148c0] final ratefactor: 27.00
[libx264 @ 0x564f648148c0] field mbs: intra: 13.5% inter:21.8% skip:6.7%
[libx264 @ 0x564f648148c0] 8x8 transform intra:35.6% inter:65.5%
[libx264 @ 0x564f648148c0] direct mvs spatial:99.4% temporal:0.6%
[libx264 @ 0x564f648148c0] coded y,uvDC,uvAC intra: 25.4% 42.4% 19.0%
inter: 4.3% 5.5% 0.8%
[libx264 @ 0x564f648148c0] i16 v,h,dc,p: 26% 57% 7% 10%
[libx264 @ 0x564f648148c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 22% 38% 4%
5% 5% 6% 4% 6%
[libx264 @ 0x564f648148c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 32% 13% 4%
6% 5% 6% 5% 7%
[libx264 @ 0x564f648148c0] i8c dc,h,v,p: 34% 47% 16% 3%
[libx264 @ 0x564f648148c0] ref P L0: 62.9% 21.3% 13.6% 0.9% 0.9% 0.5%
0.0% 0.0%
[libx264 @ 0x564f648148c0] ref B L0: 82.5% 14.2% 2.8% 0.3% 0.1% 0.1%
[libx264 @ 0x564f648148c0] ref B L1: 88.3% 11.2% 0.3% 0.2%
[libx264 @ 0x564f648148c0] kb/s:2218.72
[aac @ 0x564f64819020] Qavg: 1400.956
}}}
Creating file output, for example mkv (and not hls) also works as
expected:
{{{
ffmpeg -f mpegts -i sample.ts -flags +ildct+ilme -vcodec h264_nvenc
-preset slow -b:v 2200k -profile:v high -level 4.1 -c:a aac -ac 2 -b:a
128k -f matroska out.mkv
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
configuration: --disable-decoder=amrnb --disable-decoder=libopenjpeg
--disable-mips32r2 --disable-mips32r6 --disable-mips64r6 --disable-mipsdsp
--disable-mipsdspr2 --disable-mipsfpu --disable-msa --disable-libopencv
--disable-podpages --disable-stripping --enable-avfilter --enable-
avresample --enable-gcrypt --enable-gnutls --enable-gpl --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio
--enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-
libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-
libkvazaar --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-
libopenmpt --enable-libopus --enable-libpulse --enable-librubberband
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx265
--enable-libxvid --enable-libzvbi --enable-nonfree --enable-opengl
--enable-openssl --enable-postproc --enable-pthreads --enable-shared
--enable-version3 --enable-libwebp --incdir=/usr/include/x86_64-linux-gnu
--libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened
--enable-frei0r --enable-chromaprint --enable-libx264 --enable-libiec61883
--enable-libdc1394 --enable-vaapi --disable-opencl --enable-libmfx
--disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mpegts, from 'sample.ts':
Duration: 00:01:02.56, start: 1.400000, bitrate: 13795 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], Closed
Captions, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000
Hz, stereo, fltp, 384 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_nvenc))
Stream #0:1 -> #0:1 (ac3 (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, matroska, to 'out.mkv':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (h264_nvenc) (High) (H264 / 0x34363248),
yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 2200 kb/s, 25 fps, 1k tbn,
25 tbc
Metadata:
encoder : Lavc57.107.100 h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/2200000 buffer size: 4400000
vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz,
stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.107.100 aac
frame= 1528 fps= 73 q=36.0 Lsize= 17439kB time=00:01:02.52
bitrate=2285.0kbits/s speed=2.97x
video:16463kB audio:945kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.179919%
[aac @ 0x564c18bf2460] Qavg: 1400.956
ffprobe -show_frames out.mkv 2> /dev/null | grep pict_type=I | wc -l
7
}}}
file has 7 keyframes as it should.
Report is with version 3.4.2 from deb-multimedia. If this is not
acceptable, I will try to build myself from git but building with NVENC is
a bit difficult.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7080>
FFmpeg <https://ffmpeg.org>
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