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Decoding MPEG2 results in a segmentation fault
Hello!
I was trying to decode a DVD rip I made using this command: ffmpeg -c:v mpeg2_nvmpi -i title_t00.mkv -c:v hevc_nvmpi -c:a flac boondocks_01.mkv, but this is the result I got:
tombert@jetson1:/tank/boondocks_disc_1$ ffmpeg -c:v mpeg2_nvmpi -i title_t00.mkv -c:v hevc_nvmpi -c:a flac boondocks_01.mkv
ffmpeg version d1e8be3 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 7 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
configuration: --enable-nvmpi
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
Input #0, matroska,webm, from 'title_t00.mkv':
Metadata:
encoder : libmakemkv v1.14.5 (1.3.5/1.4.7) x86_64-linux-gnu
creation_time : 2020-04-21T00:08:33.000000Z
Duration: 00:19:58.16, start: 0.000000, bitrate: 5303 kb/s
Chapter #0:0: start 0.000000, end 105.972533
Metadata:
title : Chapter 01
Chapter #0:1: start 105.972533, end 559.458900
Metadata:
title : Chapter 02
Chapter #0:2: start 559.458900, end 1165.631133
Metadata:
title : Chapter 03
Chapter #0:3: start 1165.631133, end 1196.662133
Metadata:
title : Chapter 04
Chapter #0:4: start 1196.662133, end 1198.163633
Metadata:
title : Chapter 05
Stream #0:0(eng): Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 32:27 DAR 16:9], SAR 186:157 DAR 279:157, 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc
Metadata:
BPS-eng : 4904729
DURATION-eng : 00:19:58.163633333
NUMBER_OF_FRAMES-eng: 35909
NUMBER_OF_BYTES-eng: 734583144
SOURCE_ID-eng : 0100E0
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
Stream #0:1(eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
Metadata:
title : Stereo
BPS-eng : 192000
DURATION-eng : 00:19:58.144000000
NUMBER_OF_FRAMES-eng: 37442
NUMBER_OF_BYTES-eng: 28755456
SOURCE_ID-eng : 0180BD
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
Stream #0:2(eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Metadata:
title : Stereo
BPS-eng : 192000
DURATION-eng : 00:19:58.144000000
NUMBER_OF_FRAMES-eng: 37442
NUMBER_OF_BYTES-eng: 28755456
SOURCE_ID-eng : 0181BD
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
Stream #0:3(fre): Subtitle: dvd_subtitle, 720x480 (default)
Metadata:
BPS-eng : 7700
DURATION-eng : 00:19:53.058255555
NUMBER_OF_FRAMES-eng: 318
NUMBER_OF_BYTES-eng: 1148322
SOURCE_ID-eng : 0120BD
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
Stream #0:4(eng): Subtitle: subrip
Metadata:
BPS-eng : 166
DURATION-eng : 00:19:18.688000000
NUMBER_OF_FRAMES-eng: 477
NUMBER_OF_BYTES-eng: 24137
SOURCE_ID-eng : 0100E0
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
Opening in BLOCKING MODE
NvMMLiteOpen : Block : BlockType = 267
NVMEDIA: Reading vendor.tegra.display-size : status: 6
NvMMLiteBlockCreate : Block : BlockType = 267
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video (mpeg2_nvmpi) -> hevc (hevc_nvmpi))
Stream #0:1 -> #0:1 (ac3 (native) -> flac (native))
Stream #0:4 -> #0:2 (subrip (srt) -> ass (ssa))
Press [q] to stop, [?] for help
[flac @ 0x558404dac0] encoding as 24 bits-per-sample
NVMEDIA: NvMediaMixerInit: 119: frameWidth = 720, frameHeight = 480
NVMEDIA: DeinterlaceThread: 782: DeinterlaceThread is created
Opening in BLOCKING MODE
NvMMLiteOpen : Block : BlockType = 8
===== NVMEDIA: NVENC =====
NvMMLiteBlockCreate : Block : BlockType = 8
892744264
842091865
Output #0, matroska, to 'boondocks_01.mkv':
Metadata:
encoder : Lavf58.29.100
Chapter #0:0: start 0.000000, end 105.972533
Metadata:
title : Chapter 01
Chapter #0:1: start 105.972533, end 559.458900
Metadata:
title : Chapter 02
Chapter #0:2: start 559.458900, end 1165.631133
Metadata:
title : Chapter 03
Chapter #0:3: start 1165.631133, end 1196.662133
Metadata:
title : Chapter 04
Chapter #0:4: start 1196.662133, end 1198.163633
Metadata:
title : Chapter 05
Stream #0:0(eng): Video: hevc (hevc_nvmpi), yuv420p, 720x480 [SAR 186:157 DAR 279:157], q=-1--1, 2000 kb/s, 29.97 fps, 1k tbn, 29.97 tbc
Metadata:
BPS-eng : 4904729
DURATION-eng : 00:19:58.163633333
NUMBER_OF_FRAMES-eng: 35909
NUMBER_OF_BYTES-eng: 734583144
SOURCE_ID-eng : 0100E0
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
encoder : Lavc58.54.100 hevc_nvmpi
Stream #0:1(eng): Audio: flac ([172][241][0][0] / 0xF1AC), 48000 Hz, stereo, s32 (24 bit), 128 kb/s (default)
Metadata:
title : Stereo
BPS-eng : 192000
DURATION-eng : 00:19:58.144000000
NUMBER_OF_FRAMES-eng: 37442
NUMBER_OF_BYTES-eng: 28755456
SOURCE_ID-eng : 0180BD
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
encoder : Lavc58.54.100 flac
Stream #0:2(eng): Subtitle: ass (ssa)
Metadata:
BPS-eng : 166
DURATION-eng : 00:19:18.688000000
NUMBER_OF_FRAMES-eng: 477
NUMBER_OF_BYTES-eng: 24137
SOURCE_ID-eng : 0100E0
_STATISTICS_WRITING_APP-eng: MakeMKV v1.14.5 linux(x64-release)
_STATISTICS_WRITING_DATE_UTC-eng: 2020-04-21 00:08:33
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
encoder : Lavc58.54.100 ssa
NVMEDIA: H265 : Profile : 3
Segmentation fault (core dumped)
This also happens if I omit the hardware decoder (-c:v mpeg2_nvmpi) and just go straight to the -i
Is there something I'm missing or doing wrong?
Just to confirm that I'm not too off base with the codec, I ran this command:
$ ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 title_t00.mkv
mpeg2video
I ran into the same problem. Is there a soltion? (I`m new to jetso nano - use the default sd-card-image and follow the described install instruction for ffmpeg)
Hi, Same here .. Is there a solution ? or can i force ffmpeg to NOT user jetson to decode the mpeg2video ?
If you omit anything to the left of the -i then it should be software decoded... Try and it see if your CPU gets slammed
This needs renamed, as the mpeg2 decoder is actually starting and working. You need to look closer at that log, or I guess know what you are looking at. Decoder opening.... [code] Opening in BLOCKING MODE NvMMLiteOpen : Block : BlockType = 267 NVMEDIA: Reading vendor.tegra.display-size : status: 6 NvMMLiteBlockCreate : Block : BlockType = 267 [/code] Encoder opening.... [code] NVMEDIA: NvMediaMixerInit: 119: frameWidth = 720, frameHeight = 480 NVMEDIA: DeinterlaceThread: 782: DeinterlaceThread is created Opening in BLOCKING MODE NvMMLiteOpen : Block : BlockType = 8 ===== NVMEDIA: NVENC ===== NvMMLiteBlockCreate : Block : BlockType = 8 [/code] As for the segfault, that could be due to a number of things, and without further investigation, or the core dump, or gdb info on where the bug is.....
