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Message-Id: <200706212039.l5LKdZXb071293@www.freebsd.org>
Date: Thu, 21 Jun 2007 20:39:35 GMT
From: Adam Wood <aswood@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: ffmpeg segfaults on start
X-Send-Pr-Version: www-3.0

>Number:         113922
>Category:       ports
>Synopsis:       multimedia/ffmpeg segfaults on start
>Confidential:   no
>Severity:       non-critical
>Priority:       high
>Responsible:    freebsd-multimedia
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jun 21 20:40:04 GMT 2007
>Closed-Date:    Sun Jul 29 01:03:34 GMT 2007
>Last-Modified:  Sun Jul 29 01:03:34 GMT 2007
>Originator:     Adam Wood
>Release:        6.2-STABLE
>Organization:
>Environment:
FreeBSD latte.disillusion.net 6.2-STABLE FreeBSD 6.2-STABLE #6: Wed May  2 06:24:21 CDT 2007     toor@latte.disillusion.net:/usr/obj/usr/src/sys/LATTE  i386
>Description:
ffmpeg will not run and immediately segfaults:

[awood@latte ~]$ ffmpeg -version
FFmpeg version SVN-r9153, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --cc=cc --prefix=/usr/local --make=gmake --disable-debug --enable-memalign-hack --enable-shared --enable-pp --extra-cflags=-fPIC -DPIC -O2 -fno-strict-aliasing -pipe  -I/usr/local/include --extra-ldflags=-L/usr/local/lib --extra-libs=-pthread --enable-gpl --enable-pthreads --enable-swscaler --enable-liba52 --enable-liba52bin --enable-libfaac --enable-libfaad --enable-libfaadbin --disable-mmx --enable-libmp3lame --enable-libogg --enable-libvorbis --enable-x264 --enable-xvid
  libavutil version: 49.4.0
  libavcodec version: 51.40.4
  libavformat version: 51.12.1
  built on Jun 15 2007 00:13:28, gcc: 3.4.6 [FreeBSD] 20060305
ffmpeg      SVN-r9153
libavutil   3212288
libavcodec  3352580
libavformat 3345409

[awood@latte ~]$ ffmpeg 
usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...
Hyper fast Audio and Video encoder

Main options:
-L                  show license
-h                  show help
-version            show version
-formats            show available formats, codecs, protocols, ...
-f fmt              force format
-i filename         input file name
-y                  overwrite output files
-t duration         set the recording time
-fs limit_size      set the limit file size in bytes
-ss time_off        set the start time offset
-itsoffset time_off  set the input ts offset
-title string       set the title
-timestamp time     set the timestamp
-author string      set the author
-copyright string   set the copyright
-comment string     set the comment
-album string       set the album
-v verbose          control amount of logging
-target type        specify target file type ("vcd", "svcd", "dvd", "dv", "dv50"
, "pal-vcd", "ntsc-svcd", ...)
-dframes number     set the number of data frames to record
-scodec codec       force subtitle codec ('copy' to copy stream)
-newsubtitle        add a new subtitle stream to the current output stream
-slang code         set the ISO 639 language code (3 letters) of the current sub
title stream

Video options:
-vframes number     set the number of video frames to record
-r rate             set frame rate (Hz value, fraction or abbreviation)
-s size             set frame size (WxH or abbreviation)
-aspect aspect      set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
-croptop size       set top crop band size (in pixels)
-cropbottom size    set bottom crop band size (in pixels)
-cropleft size      set left crop band size (in pixels)
-cropright size     set right crop band size (in pixels)
-padtop size        set top pad band size (in pixels)
-padbottom size     set bottom pad band size (in pixels)
-padleft size       set left pad band size (in pixels)
-padright size      set right pad band size (in pixels)
-padcolor color     set color of pad bands (Hex 000000 thru FFFFFF)
-vn                 disable video
-vcodec codec       force video codec ('copy' to copy stream)
-sameq              use same video quality as source (implies VBR)
-pass n             select the pass number (1 or 2)
-passlogfile file   select two pass log file name
-newvideo           add a new video stream to the current output stream

Advanced Video options:
-pix_fmt format     set pixel format
-intra              use only intra frames
-vdt n              discard threshold
-qscale q           use fixed video quantizer scale (VBR)
-qdiff q            max difference between the quantizer scale (VBR)
-rc_eq equation     set rate control equation
-rc_override override  rate control override for specific intervals
-me method          set motion estimation method
-me_threshold       motion estimaton threshold
-strict strictness  how strictly to follow the standards
-deinterlace        deinterlace pictures
-psnr               calculate PSNR of compressed frames
-vstats             dump video coding statistics to file
-vstats_file file   dump video coding statistics to file
-vhook module       insert video processing module
-intra_matrix matrix  specify intra matrix coeffs
-inter_matrix matrix  specify inter matrix coeffs
-top                top=1/bottom=0/auto=-1 field first
-dc precision       intra_dc_precision
-vtag fourcc/tag    force video tag/fourcc
-qphist             show QP histogram
-vbsf bitstream filter

Audio options:
-aframes number     set the number of audio frames to record
-aq quality         set audio quality (codec-specific)
-ar rate            set audio sampling rate (in Hz)
-ac channels        set number of audio channels
-an                 disable audio
-acodec codec       force audio codec ('copy' to copy stream)
-vol volume         change audio volume (256=normal)
-newaudio           add a new audio stream to the current output stream
-alang code         set the ISO 639 language code (3 letters) of the current aud
io stream

Advanced Audio options:
-atag fourcc/tag    force audio tag/fourcc
-absf bitstream filter

Subtitle options:
-scodec codec       force subtitle codec ('copy' to copy stream)
-newsubtitle        add a new subtitle stream to the current output stream
-slang code         set the ISO 639 language code (3 letters) of the current sub
title stream

Audio/Video grab options:
-vc channel         set video grab channel (DV1394 only)
-tvstd standard     set television standard (NTSC, PAL (SECAM))
-isync              sync read on input

Advanced options:
-map file:stream[:syncfile:syncstream]  set input stream mapping
-map_meta_data outfile:infile  set meta data information of outfile from infile
-benchmark          add timings for benchmarking
-dump               dump each input packet
-hex                when dumping packets, also dump the payload
-re                 read input at native frame rate
-loop_input         loop (current only works with images)
-loop_output        number of times to loop output in formats that support loopi
ng (0 loops forever)
-threads count      thread count
-vsync              video sync method
-async              audio sync method
-vglobal            video global header storage type
-copyts             copy timestamps
-shortest           finish encoding within shortest input
-dts_delta_threshold   timestamp discontinuity delta threshold
-muxdelay seconds   set the maximum demux-decode delay
-muxpreload seconds  set the initial demux-decode delay
AVCodecContext AVOptions:
-b                 <int>   E.V.. set bitrate (in bits/s)
-ab                <int>   E..A. set bitrate (in bits/s)
-bt                <int>   E.V.. set video bitrate tolerance (in bits/s)
-flags             <flags> EDVA.
   mv4                     E.V.. use four motion vector by macroblock (mpeg4)
   obmc                    E.V.. use overlapped block motion compensation (h263+
)
   qpel                    E.V.. use 1/4 pel motion compensation
   loop                    E.V.. use loop filter
   gmc                     E.V.. use gmc
   mv0                     E.V.. always try a mb with mv=<0,0>
   part                    E.V.. use data partitioning
   gray                    EDV.. only decode/encode grayscale
   psnr                    E.V.. error[?] variables will be set during encoding
   naq                     E.V.. normalize adaptive quantization
   ildct                   E.V.. use interlaced dct
   low_delay               EDV.. force low delay
   alt                     E.V.. enable alternate scantable (mpeg2/mpeg4)
   trell                   E.V.. use trellis quantization
   bitexact                EDVAS use only bitexact stuff (except (i)dct)
   aic                     E.V.. h263 advanced intra coding / mpeg4 ac predictio
n
   umv                     E.V.. use unlimited motion vectors
   cbp                     E.V.. use rate distortion optimization for cbp
   qprd                    E.V.. use rate distortion optimization for qp selecti
on
   aiv                     E.V.. h263 alternative inter vlc
   slice                   E.V..
   ilme                    E.V.. interlaced motion estimation
   scan_offset             E.V.. will reserve space for svcd scan offset user da
ta
   cgop                    E.V.. closed gop
-me_method         <int>   E.V.. set motion estimation method
-g                 <int>   E.V.. set the group of picture size
-cutoff            <int>   E..A. set cutoff bandwidth
-frame_size        <int>   E..A.
-qcomp             <float> E.V.. video quantizer scale compression (VBR)
-qblur             <float> E.V.. video quantizer scale blur (VBR)
-qmin              <int>   E.V.. min video quantizer scale (VBR)
-qmax              <int>   E.V.. max video quantizer scale (VBR)
-qdiff             <int>   E.V.. max difference between the quantizer scale (VBR
)
-bf                <int>   E.V.. use 'frames' B frames
-b_qfactor         <float> E.V.. qp factor between p and b frames
-rc_strategy       <int>   E.V.. ratecontrol method
-b_strategy        <int>   E.V.. strategy to choose between I/P/B-frames
-hurry_up          <int>   .DV..
-ps                <int>   E.V.. rtp payload size in bits
-bug               <flags> .DV.. workaround not auto detected encoder bugs
   autodetect              .DV..
   old_msmpeg4             .DV.. some old lavc generated msmpeg4v3 files (no aut
odetection)
   xvid_ilace              .DV.. Xvid interlacing bug (autodetected if fourcc==X
VIX)
   ump4                    .DV.. (autodetected if fourcc==UMP4)
   no_padding              .DV.. padding bug (autodetected)
   amv                     .DV..
   ac_vlc                  .DV.. illegal vlc bug (autodetected per fourcc)
   qpel_chroma             .DV..
   std_qpel                .DV.. old standard qpel (autodetected per fourcc/vers
ion)
   qpel_chroma2            .DV..
   direct_blocksize         .DV.. direct-qpel-blocksize bug (autodetected per fo
urcc/version)
   edge                    .DV.. edge padding bug (autodetected per fourcc/versi
on)
   hpel_chroma             .DV..
   dc_clip                 .DV..
   ms                      .DV.. workaround various bugs in microsofts broken de
coders
-lelim             <int>   E.V.. single coefficient elimination threshold for lu
minance (negative values also consider dc coefficient)
-celim             <int>   E.V.. single coefficient elimination threshold for ch
rominance (negative values also consider dc coefficient)
-strict            <int>   .DVA. how strictly to follow the standards
   very                    E.V.. strictly conform to a older more strict version
 of the spec or reference software
   strict                  E.V.. strictly conform to all the things in the spec
no matter what consequences
   normal                  E.V..
   inofficial              E.V.. allow inofficial extensions
   experimental            E.V.. allow non standardized experimental things
-b_qoffset         <float> E.V.. qp offset between p and b frames
-er                <int>   .DVA. set error resilience strategy
   careful                 .DV..
   compliant               .DV..
   aggressive              .DV..
   very_aggressive         .DV..
-mpeg_quant        <int>   E.V.. use MPEG quantizers instead of H.263
-qsquish           <float> E.V.. how to keep quantizer between qmin and qmax (0
= clip, 1 = use differentiable function)
-rc_qmod_amp       <float> E.V.. experimental quantizer modulation
-rc_qmod_freq      <int>   E.V.. experimental quantizer modulation
-rc_eq             <string> E.V.. set rate control equation
-maxrate           <int>   E.V.. set max video bitrate tolerance (in bits/s)
-minrate           <int>   E.V.. set min video bitrate tolerance (in bits/s)
-bufsize           <int>   E.V.. set ratecontrol buffer size (in bits)
-rc_buf_aggressivity <float> E.V.. currently useless
-i_qfactor         <float> E.V.. qp factor between p and i frames
-i_qoffset         <float> E.V.. qp offset between p and i frames
-rc_init_cplx      <float> E.V.. initial complexity for 1-pass encoding
-dct               <int>   E.V.. DCT algorithm
   auto                    E.V.. autoselect a good one (default)
   fastint                 E.V.. fast integer
   int                     E.V.. accurate integer
   mmx                     E.V..
   mlib                    E.V..
   altivec                 E.V..
   faan                    E.V.. floating point AAN DCT
-lumi_mask         <float> E.V.. compresses bright areas stronger than medium on
es
-tcplx_mask        <float> E.V.. temporal complexity masking
-scplx_mask        <float> E.V.. spatial complexity masking
-p_mask            <float> E.V.. inter masking
-dark_mask         <float> E.V.. compresses dark areas stronger than medium ones
-idct              <int>   EDV.. select IDCT implementation
   auto                    EDV..
   int                     EDV..
   simple                  EDV..
   simplemmx               EDV..
   libmpeg2mmx             EDV..
   ps2                     EDV..
   mlib                    EDV..
   arm                     EDV..
   altivec                 EDV..
   sh4                     EDV..
   simplearm               EDV..
   simplearmv5te           EDV..
   h264                    EDV..
   vp3                     EDV..
   ipp                     EDV..
   xvidmmx                 EDV..
-ec                <flags> .DV.. set error concealment strategy
   guess_mvs               .DV.. iterative motion vector (MV) search (slow)
   deblock                 .DV.. use strong deblock filter for damaged MBs
-pred              <int>   E.V.. prediction method
   left                    E.V..
   plane                   E.V..
   median                  E.V..
-aspect            <rational> E.V.. sample aspect ratio
-debug             <flags> EDVAS print specific debug info
   pict                    .DV.. picture info
   rc                      E.V.. rate control
   bitstream               .DV..
   mb_type                 .DV.. macroblock (MB) type
   qp                      .DV.. per-block quantization parameter (QP)
   mv                      .DV.. motion vector
   dct_coeff               .DV..
   skip                    .DV..
   startcode               .DV..
   pts                     .DV..
   er                      .DV.. error resilience
   mmco                    .DV.. memory management control operations (H.264)
   bugs                    .DV..
   vis_qp                  .DV.. visualize quantization parameter (QP), lower QP
 are tinted greener
   vis_mb_type             .DV.. visualize block types
-vismv             <int>   .DV.. visualize motion vectors (MVs)
   pf                      .DV.. forward predicted MVs of P-frames
   bf                      .DV.. forward predicted MVs of B-frames
   bb                      .DV.. backward predicted MVs of B-frames
-mb_qmin           <int>   E.V.. obsolete, use qmin
-mb_qmax           <int>   E.V.. obsolete, use qmax
-cmp               <int>   E.V.. full pel me compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed difference
s
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low
quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-subcmp            <int>   E.V.. sub pel me compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed difference
s
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low
quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-mbcmp             <int>   E.V.. macroblock compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed difference
s
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low
quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-ildctcmp          <int>   E.V.. interlaced dct compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed difference
s
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low
quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-dia_size          <int>   E.V.. diamond type & size for motion estimation
-last_pred         <int>   E.V.. amount of motion predictors from the previous f
rame
-preme             <int>   E.V.. pre motion estimation
-precmp            <int>   E.V.. pre motion estimation compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed difference
s
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low
quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-pre_dia_size      <int>   E.V.. diamond type & size for motion estimation pre-p
ass
-subq              <int>   E.V.. sub pel motion estimation quality
-me_range          <int>   E.V.. limit motion vectors range (1023 for DivX playe
r)
-ibias             <int>   E.V.. intra quant bias
-pbias             <int>   E.V.. inter quant bias
-coder             <int>   E.V..
   vlc                     E.V.. variable length coder / huffman coder
   ac                      E.V.. arithmetic coder
   raw                     E.V.. raw (no encoding)
   rle                     E.V.. run-length coder
   deflate                 E.V.. deflate-based coder
-context           <int>   E.V.. context model
-mbd               <int>   E.V.. macroblock decision algorithm (high quality mod
e)
   simple                  E.V.. use mbcmp (default)
   bits                    E.V.. use fewest bits
   rd                      E.V.. use best rate distortion
-sc_threshold      <int>   E.V.. scene change threshold
-lmin              <int>   E.V.. min lagrange factor (VBR)
-lmax              <int>   E.V.. max lagrange factor (VBR)
-nr                <int>   E.V.. noise reduction
-rc_init_occupancy <int>   E.V.. number of bits which should be loaded into the
rc buffer before decoding starts
-inter_threshold   <int>   E.V..
-flags2            <flags> EDVA.
   fast                    E.V.. allow non spec compliant speedup tricks
   sgop                    E.V.. strictly enforce gop size
   noout                   E.V.. skip bitstream encoding
   local_header            E.V.. place global headers at every keyframe instead
of in extradata
   bpyramid                E.V.. allows B-frames to be used as references for pr
edicting
   wpred                   E.V.. weighted biprediction for b-frames (H.264)
   mixed_refs              E.V.. one reference per partition, as opposed to one
reference per macroblock
   dct8x8                  E.V.. high profile 8x8 transform (H.264)
   fastpskip               E.V.. fast pskip (H.264)
   aud                     E.V.. access unit delimiters (H.264)
   brdo                    E.V.. b-frame rate-distortion optimization
   skiprd                  E.V.. RD optimal MB level residual skipping
   ivlc                    E.V.. intra vlc table
   drop_frame_timecode         E.V..
   non_linear_q            E.V.. use non linear quantizer
-error             <int>   E.V..
-antialias         <int>   .DV.. MP3 antialias algorithm
   auto                    .DV..
   fastint                 .DV..
   int                     .DV..
   float                   .DV..
-qns               <int>   E.V.. quantizer noise shaping
-threads           <int>   EDV..
-mb_threshold      <int>   E.V.. macroblock threshold
-dc                <int>   E.V.. intra_dc_precision
-nssew             <int>   E.V.. nsse weight
-skip_top          <int>   .DV.. number of macroblock rows at the top which are
skipped
-skip_bottom       <int>   .DV.. number of macroblock rows at the bottom which a
re skipped
-profile           <int>   E.VA.
   unknown                 E.VA.
   aac_main                E..A.
   aac_low                 E..A.
   aac_ssr                 E..A.
   aac_ltp                 E..A.
-level             <int>   E.VA.
   unknown                 E.VA.
-lowres            <int>   .DV.. decode at 1= 1/2, 2=1/4, 3=1/8 resolutions
-skip_threshold    <int>   E.V.. frame skip threshold
-skip_factor       <int>   E.V.. frame skip factor
-skip_exp          <int>   E.V.. frame skip exponent
-skipcmp           <int>   E.V.. frame skip compare function
   sad                     E.V.. sum of absolute differences, fast (default)
   sse                     E.V.. sum of squared errors
   satd                    E.V.. sum of absolute Hadamard transformed difference
s
   dct                     E.V.. sum of absolute DCT transformed differences
   psnr                    E.V.. sum of squared quantization errors (avoid, low
quality)
   bit                     E.V.. number of bits needed for the block
   rd                      E.V.. rate distortion optimal, slow
   zero                    E.V.. 0
   vsad                    E.V.. sum of absolute vertical differences
   vsse                    E.V.. sum of squared vertical differences
   nsse                    E.V.. noise preserving sum of squared differences
   w53                     E.V.. 5/3 wavelet, only used in snow
   w97                     E.V.. 9/7 wavelet, only used in snow
   dctmax                  E.V..
   chroma                  E.V..
-border_mask       <float> E.V.. increases the quantizer for macroblocks close t
o borders
-mblmin            <int>   E.V.. min macroblock lagrange factor (VBR)
-mblmax            <int>   E.V.. max macroblock lagrange factor (VBR)
-mepc              <int>   E.V.. motion estimation bitrate penalty compensation
(1.0 = 256)
-bidir_refine      <int>   E.V.. refine the two motion vectors used in bidirecti
onal macroblocks
-brd_scale         <int>   E.V.. downscales frames for dynamic B-frame decision
-crf               <float> E.V.. enables constant quality mode, and selects the
quality (x264)
-cqp               <int>   E.V.. constant quantization parameter rate control me
thod
-keyint_min        <int>   E.V.. minimum interval between IDR-frames (x264)
-refs              <int>   E.V.. reference frames to consider for motion compensation (Snow)
-chromaoffset      <int>   E.V.. chroma qp offset from luma
-bframebias        <int>   E.V.. influences how often B-frames are used
-trellis           <int>   E.VA. rate-distortion optimal quantization
-directpred        <int>   E.V.. direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
-complexityblur    <float> E.V.. reduce fluctuations in qp (before curve compression)
-deblockalpha      <int>   E.V.. in-loop deblocking filter alphac0 parameter
-deblockbeta       <int>   E.V.. in-loop deblocking filter beta parameter
-partitions        <flags> E.V.. macroblock subpartition sizes to consider
   parti4x4                E.V..
   parti8x8                E.V..
   partp4x4                E.V..
   partp8x8                E.V..
   partb8x8                E.V..
-sc_factor         <int>   E.V.. multiplied by qscale for each frame and added to scene_change_score
-mv0_threshold     <int>   E.V..
-b_sensitivity     <int>   E.V.. adjusts sensitivity of b_frame_strategy 1
-compression_level <int>   E.VA.
-use_lpc           <int>   E..A. sets whether to use LPC mode (FLAC)
-lpc_coeff_precision <int>   E..A. LPC coefficient precision (FLAC)
-min_prediction_order <int>   E..A.
-max_prediction_order <int>   E..A.
-prediction_order_method <int>   E..A. search method for selecting prediction order
-min_partition_order <int>   E..A.
-max_partition_order <int>   E..A.
-timecode_frame_start <int>   E.V.. GOP timecode frame start number, in non drop frame format
AVFormatContext AVOptions:
-probesize         <int>   .D...
-muxrate           <int>   E.... set mux rate
-packetsize        <int>   E.... set packet size
-fflags            <flags> ED...
   ignidx                  .D... ignore index
   genpts                  .D... generate pts
-track             <int>   E....  set the track number
-year              <int>   E.... set the year
-analyzeduration   <int>   .D... how many microseconds are analyzed to estimate duration
Segmentation fault: 11 (core dumped)
[awood@latte ~]$

>How-To-Repeat:
Fetch new ports tree
portinstall ffmpeg
/usr/local/bin/ffmpeg
>Fix:


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-ports-bugs->freebsd-multimedia 
Responsible-Changed-By: edwin 
Responsible-Changed-When: Thu Jun 21 21:39:14 UTC 2007 
Responsible-Changed-Why:  
Over to maintainer 

http://www.freebsd.org/cgi/query-pr.cgi?pr=113922 
State-Changed-From-To: open->feedback  
State-Changed-By: ahze 
State-Changed-When: Thu Jun 28 17:54:27 UTC 2007 
State-Changed-Why:  
Can you provide us with a backtrace? 

http://www.freebsd.org/cgi/query-pr.cgi?pr=113922 

From: "Adam Wood" <aswood@gmail.com>
To: "Michael Johnson" <ahze@freebsd.org>
Cc: freebsd-multimedia@freebsd.org, bug-followup@FreeBSD.org
Subject: Re: ports/113922: multimedia/ffmpeg segfaults on start
Date: Thu, 28 Jun 2007 17:31:27 -0500

 On 6/28/07, Michael Johnson <ahze@freebsd.org> wrote:
 > Synopsis: multimedia/ffmpeg segfaults on start
 
 > Can you provide us with a backtrace?
 
 > http://www.freebsd.org/cgi/query-pr.cgi?pr=113922
 
 I've never used gdb before and I don't think I have the debugging
 stuff compiled into my kernel, but after a little Googling I found
 gdb's "bt" command. I hope this is what you're after, if it isn't,
 please let me know how to get the information you need.
 
 (gdb) run
 Starting program: /usr/local/bin/ffmpeg
 (no debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...warning:
 Unable to get location for thread creation breakpoint: generic error
 [New LWP 100358]
 (no debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...(no debugging symbols found)...(no
 debugging symbols found)...FFmpeg version SVN-r9153, Copyright (c)
 2000-2007 Fabrice Bellard, et al.
 
 *snip*
 
 -analyzeduration   <int>   .D... how many microseconds are analyzed to
 estimate duration
 [New Thread 0x8062000 (LWP 100367)]
 
 Program received signal SIGSEGV, Segmentation fault.
 [Switching to Thread 0x8062000 (LWP 100367)]
 0x28968cd3 in __vfprintf () from /lib/libc.so.6
 (gdb) bt
 #0  0x28968cd3 in __vfprintf () from /lib/libc.so.6
 #1  0x289698cd in vfprintf () from /lib/libc.so.6
 #2  0x08050c1d in _start ()
 #3  0x0804aafa in _start ()
 #4  0x00000001 in ?? ()
 
 Sincerely,
 --adam

From: Gary Palmer <gpalmer@freebsd.org>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: ports/113922: multimedia/ffmpeg segfaults on start
Date: Fri, 13 Jul 2007 03:40:02 +0100

 I also experienced the crash.  I tracked it down to ffmpeg source code.
 
 Program received signal SIGSEGV, Segmentation fault.
 [Switching to Thread 0x8480000 (LWP 100306)]
 0x48852af7 in __vfprintf () from /lib/libc.so.6
 (gdb) bt
 #0  0x48852af7 in __vfprintf () from /lib/libc.so.6
 #1  0x488536f1 in vfprintf () from /lib/libc.so.6
 #2  0x0805fd7d in log_callback_help (ptr=0x0, level=1, fmt=0x837b39c 
 "T7\b",
     vl=0x82c4b7e "\203\030[\220S\203\b\215D$\034Pt$\034t$\034")
     at ffmpeg.c:3735
 #3  0x082c4b7e in av_vlog (avcl=0x848e010, level=137788800,
     fmt=0x837b39c "T7\b", vl=0x82c4baa "\203\030[\220") at log.c:65
 #4  0x082c4baa in av_log (avcl=0x848e010, level=0, fmt=0x837b39c "T7\b")
     at log.c:58
 #5  0x081a9c13 in av_opt_show (obj=0x8477130, av_log_obj=0x0) at opt.c:335
 #6  0x0805fe93 in show_help () at ffmpeg.c:3771
 #7  0x08060d03 in main (argc=1, argv=0xbfbfe808) at ffmpeg.c:3798
 
 Notice the fmt parameters are garbage from 4 upwards
 
 #6  0x0805fe93 in show_help () at ffmpeg.c:3771
 3771        av_opt_show(sws_opts, NULL);
 
 Looking through the code, sws_opts is populated at ffmpeg.c in main() at 
 line 3794 with a call to sws_getContext
 
 The real fun is that the ffmpeg code has TWO definitions for 
 sws_getContext when you have --enable-swscaler passed to configure 
 (which is the default for the port).  One is defined in 
 libavcodec/imgresample.c and the other in libswscale/swscale.c
 
 At least on my system, the linker defaulted to the version in libavcodec 
 which leads to the SIGSEGV.  Putting "#if 0" around the definitions for 
 sws_getContext, sws_freeContext and sws_scale in 
 libavcodec/imgresample.c appears to stop the SIGSEGV for me.
 
 Alternatively, deleting the files/patch-libavcodec_Makefile patch file 
 appears to also stop the coredump.
 
 I do not have enough experience with this port to know if either option 
 has bad side effects
 
 
 
State-Changed-From-To: feedback->closed  
State-Changed-By: ahze 
State-Changed-When: Sun Jul 29 01:02:30 UTC 2007 
State-Changed-Why:  
This should be fixed in the latest version, please submit another pr if this problem still presists in 2007-07-12 or later. thanks!  

http://www.freebsd.org/cgi/query-pr.cgi?pr=113922 
>Unformatted:
