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How do I read an AVPacket from a file?
I have saved an AVPacket to a file and now trying to load it. Can you please
help read it using QDataStream?
Original issue reported on code.google.com by [email protected] on 9 Jul 2013 at 3:05
RTSP decoding
Hi All,
this isn't really an issue.
I try to decode an rtsp stream. If I pass the rtsp url to av_open_input_file()
in QVideoDecoder::openFile() I can see the first frame.
The problem is that I cannot go ahead with the frames. I always see the same
frame.
I think the problem is that the rtsp stream is not seekable.
Is it possible to implement a function that give me the next frame available
with this wrapper?
Thank you
Regards
Original issue reported on code.google.com by [email protected] on 24 Nov 2010 at 3:56
Program selection
What steps will reproduce the problem?
Canot select a spécific program id.
What is the expected output? What do you see instead?
Implement a QVideoDecoder method :selectProgram(int programId)
which set the videoStream on programId stream_index.
What version of the product are you using? On what operating system?
version: 23 09 2011
os: win7
Please provide any additional information below.
void QVideoDecoder::setProgram(int programId)
{
int index = -1;
for(int i=0; i<this->pFormatCtx->nb_programs; i++)
{
ffmpeg::AVProgram *program = this->pFormatCtx->programs[i];
if(program->id != programId)
continue;
for(int j=0; j<program->nb_stream_indexes; j++)
{
int sidx1 = program->stream_index[j];
int sidx2 = *program->stream_index;
int ris = sidx2 + j;
ffmpeg::AVStream *avs = this->pFormatCtx->streams[ris];
ffmpeg::AVDiscard avd = avs->discard;
ffmpeg::AVCodecContext *avc = avs->codec;
///ffmpeg::CodecType typ = avc->codec_type;
/*if(/*this->pFormatCtx->streams[ris]->discard
&&* this->pFormatCtx->streams[ris]->codec->codec_type == type)*/
{
index = ris;
break;
}
}
qDebug() << "QVideoDecoder.setProgram(): Program Index=" << program->id;
//qDebug() << "QVideoDecoder.setProgram(): Program Index=" << program->provider_name;
//qDebug() << "QVideoDecoder.setProgram(): Program Name=" << program->name;
qDebug() << "QVideoDecoder.setProgram(): Program Index=" << index;
}
if (index != -1)
{
videoStream=index; // OCA
// Get a pointer to the codec context for the video stream
pCodecCtx=pFormatCtx->streams[videoStream]->codec;
// Find the decoder for the video stream
pCodec=avcodec_find_decoder(pCodecCtx->codec_id);
if(pCodec!=NULL)
{
avcodec_open(pCodecCtx, pCodec);
}
}
}
Original issue reported on code.google.com by [email protected] on 30 Nov 2011 at 9:03
cio.cpp
in cio.cpp
line 88:
#ifdef LINUX
should be
#ifdef linux
Original issue reported on code.google.com by [email protected] on 7 Oct 2011 at 8:37
example project trigger error on executed
1. Checkout qtffmpegwrapper project :
hg clone https://qtffmpegwrapper.googlecode.com/hg/ qtffmpegwrapper
2. Go to example directory.Open the qtffmpegwrapperdemo.pro using Qt
Creator
3. From the menu I select Build -> Rebuild All
NO window come out. I got this error :
..qtffmpegwrapper\example\debug\qtffmpegwrapperdemo.exe exited with code
-1073741515
I'm using QT 4.6.2 on Windows XP
Original issue reported on code.google.com by [email protected] on 10 Mar 2010 at 7:23
OSX Build with Latest ffmpeg - avacodec_init() symbol not found
What steps will reproduce the problem?
1. Build ffmpeg on mac OSX 10.7 (latest source from git)
2. Build latest ffmpeg (download form this site)
3. qmake/make simple project file using QVideoDecoder.cpp, .h
What version of the product are you using?
qtffmpegwrapper_src-20120317.zip
On what operating system?
Mac OSX 10.7
latest ffmpeg from:
git://source.ffmpeg.org/ffmpeg.git
Has anyone successfully built for OSX?
Original issue reported on code.google.com by [email protected] on 12 Jun 2012 at 8:19
Warnings/deprecated functions
It's a great wrapper :)
But when I compile the example program, I get a lot of warnings because of
deprecated functions...
The attached file contains my make output.
What steps will reproduce the problem?
Compile example program with ffmpeg 0.7.3 on Ubuntu 11.10 (maybe also on other
systems)
Original issue reported on code.google.com by [email protected] on 8 Apr 2012 at 4:30
Attachments:
Compile problem and library linkage
Hi all,
First I've the same issue as : [email protected]
So I put "using namespace ffmpeg;
to the end of ffmpeg.h"
And It's not compile, I have this issue :
/usr/bin/ld: cannot find -lavutil
My system is :
Ubuntu 10.04.4 LTS \n \l
Bye
Original issue reported on code.google.com by [email protected] on 7 May 2012 at 8:20
Can't compile QVideoEncoder
What steps will reproduce the problem?
1. remove paths from config.pro
2. qmake config.pro
3. make
What do you see instead?
The QVideoEncoding compilation fails:
g++ -m64 -Wl,-O1 -o config QVideoEncoder.o QVideoDecoder.o -L/usr/lib
-lavutil -lavcodec -lavformat -lswscale -lQtGui -lQtCore -lpthread
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 0 has invalid symbol index 11
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 1 has invalid symbol index 12
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 2 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 3 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 4 has invalid symbol index 11
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 5 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 6 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 7 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 8 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 9 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 10 has invalid symbol index 12
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 11 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 12 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 13 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 14 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 15 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 16 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 17 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 18 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 19 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info):
relocation 20 has invalid symbol index 20
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../crt1.o: In
function `_start':
(.text+0x20): undefined reference to `main'
QVideoEncoder.o: In function `QVideoEncoder::createFile(QString, unsigned int,
unsigned int, unsigned int, unsigned int)':
QVideoEncoder.cpp:(.text+0x2fc): undefined reference to `guess_format'
QVideoEncoder.cpp:(.text+0x654): undefined reference to `guess_format'
collect2: ld returned 1 exit status
make: *** [config] Fehler 1
However, it works, if I remove the two guess_format calls from QVideoEncoder.cpp
What version of the product are you using? On what operating system?
System configuration: Debian wheezy
with
ii ffmpeg 5:0.8-0.1
audio/video encoder, streaming server & audio/video file converter.
ii gstreamer0.10-ffmpeg 1:0.10.11-4.1
FFmpeg plugin for GStreamer
rc libavcodec51 0.svn20080206-18
ffmpeg codec library
ii libavdevice52 5:0.6.3-0.0
ffmpeg device handling library
rc libavfilter0 4:0.5.2-1
ffmpeg video filtering library
ii libavformat52 5:0.6.3-0.0
ffmpeg file format library
ii libavutil49 4:0.5.2-6
ffmpeg utility library
ii libswscale0 5:0.6.3+git20110613-0.1
ffmpeg video scaling library
Original issue reported on code.google.com by [email protected] on 4 Aug 2011 at 10:07
Memory leak in QVideoEncoder
img_convert_ctx isn't freed on close()
ffmpeg::sws_getCachedContext() tries to use an already existing context but
fails because initVars() sets img_convert_ctx to zero. So a new context is
allocated on every new video.
Adding the following lines to QVideoEncoder::close() (before initVars) solves
the problem:
// free the sws-context
sws_freeContext(img_convert_ctx);
Another solution would be of course to remove the corresponding line from
initVars()
regards
Frederik Pasch
Original issue reported on code.google.com by [email protected] on 14 Feb 2011 at 2:36
include <cmath>
What steps will reproduce the problem?
I'm using ffmpeg and marble opensource lib
What is the expected output? What do you see instead?
the compilation failled:
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:1
05: error: '::acos' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:1
21: error: '::asin' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:1
37: error: '::atan' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:1
53: error: '::atan2' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:1
75: error: '::ceil' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:1
91: error: '::cos' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
07: error: '::cosh' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
23: error: '::exp' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
39: error: '::fabs' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
55: error: '::floor' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
71: error: '::fmod' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
81: error: '::frexp' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:2
97: error: '::ldexp' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:3
13: error: '::log' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:3
29: error: '::log10' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:3
45: error: '::modf' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:3
55: error: '::pow' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:3
93: error: '::sin' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:4
09: error: '::sinh' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:4
25: error: '::sqrt' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:4
41: error: '::tan' has not been declared
d:\dev\qt\qtcreator-2.3.1\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cmath:4
57: error: '::tanh' has not been declared
What version of the product are you using? On what operating system?
version 23 09 2011
os win7
Please provide any additional information below.
I solved the problem by adding
#include <cmath> in ffmpeg.h:
#ifndef _FFMPEG_H
#define _FFMPEG_H
#include <cmath>
namespace ffmpeg {
...
Original issue reported on code.google.com by [email protected] on 30 Nov 2011 at 8:56
Wrong frame number with H.264
The current QVideoDecoder code assumes that packet.dts values are equivalent to
frame numbers (i.e. start from 0 and are incremented by one with each
successfully read packet). However, this does not hold for all video codecs
(such as H.264), according to my experience. The effect is that such videos are
unable to be played back or at least seeked correctly. See
http://www.auby.no/files/video_tests/h264_720p_mp_3.1_3mbps_aac_shrinkage.mp4
for a sample behaviour.
The proposed fix is based on the implementation in Blender
(https://svn.blender.org/svnroot/bf-blender/trunk/blender/source/gameengine/Vide
oTexture/VideoFFmpeg.cpp):
*** In bool QVideoDecoder::decodeSeekFrame(int after) ***
REPLACE
int f = packet.dts;
WITH
double m_baseFrameRate = av_q2d(pFormatCtx->streams[videoStream]->r_frame_rate);
double timeBase = av_q2d(pFormatCtx->streams[videoStream]->time_base);
int64_t startTs = pFormatCtx->streams[videoStream]->start_time;
if (startTs == AV_NOPTS_VALUE) startTs = 0;
int f = (long)((packet.dts-startTs) * (m_baseFrameRate*timeBase) + 0.5);
*** In bool QVideoDecoder::seekFrame(int64_t frame) ***
REPLACE
//printf("\t avformat_seek_file\n");
if(ffmpeg::avformat_seek_file(pFormatCtx,videoStream,0,frame,frame,AVSEEK_FLAG_F
RAME)<0)
WITH
double m_baseFrameRate = av_q2d(pFormatCtx->streams[videoStream]->r_frame_rate);
double timeBase = av_q2d(pFormatCtx->streams[videoStream]->time_base);
int64_t startTs = pFormatCtx->streams[videoStream]->start_time;
if (startTs == AV_NOPTS_VALUE) startTs = 0;
double preSeek = 1*getFPS(); //ffmpeg bug?: with H.264 avformat_seek_file often
seeks not in a keyframe, thus the following avcodec_decode_video2 iterations
may go past desiredDts
int desiredDts = (frame-0.5-preSeek) / (m_baseFrameRate*timeBase) + startTs;
if (desiredDts<startTs) desiredDts = startTs;
//printf("\t avformat_seek_file to %d (pts %d)\n", frame, desiredDts);
if(ffmpeg::avformat_seek_file(pFormatCtx,videoStream,-0x7ffffffffffffff,desiredD
ts,desiredDts,AVSEEK_FLAG_BACKWARD)<0)
Original issue reported on code.google.com by [email protected] on 21 Oct 2013 at 3:28
diff files for latest FFmpeg
Attached are diff files that create a working library with a revision of FFmpeg
pulled last week. The first file is a diff of just the library directory; the
second file is a diff of the entire directory tree, including FFmpeg headers.
This patch also includes changes to get rid of some compiler warnings.
Original issue reported on code.google.com by [email protected] on 8 Oct 2013 at 9:39
Attachments:
compile problem
I just get code from repository and try to compile QTFFmpegWrapper with this
steps.
qmake config.pro
make
and output is
g++ -c -m64 -pipe -O2 -fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2
-fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -Wall -W
-D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED
-I/usr/share/qt4/mkspecs/default -I. -I/usr/include/QtCore -I/usr/include/QtGui
-I/usr/include -IQVideoEncoder -I../QTFFmpegWrapper -I. -o QVideoEncoder.o
../QTFFmpegWrapper/QVideoEncoder.cpp
In file included from ../QTFFmpegWrapper/QVideoEncoder.cpp:17:
../QTFFmpegWrapper/QVideoEncoder.h:42: error: ISO C++ forbids declaration of
‘uint8_t’ with no type
../QTFFmpegWrapper/QVideoEncoder.h:42: error: expected ‘;’ before ‘*’
token
../QTFFmpegWrapper/QVideoEncoder.h:45: error: ISO C++ forbids declaration of
‘uint8_t’ with no type
../QTFFmpegWrapper/QVideoEncoder.h:45: error: expected ‘;’ before ‘*’
token
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘virtual bool
QVideoEncoder::close()’:
../QTFFmpegWrapper/QVideoEncoder.cpp:196: warning: comparison between signed
and unsigned integer expressions
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘virtual int
QVideoEncoder::encodeImage(const QImage&)’:
../QTFFmpegWrapper/QVideoEncoder.cpp:226: error: ‘outbuf’ was not declared
in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:234: warning: comparison between signed
and unsigned integer expressions
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘void
QVideoEncoder::initVars()’:
../QTFFmpegWrapper/QVideoEncoder.cpp:264: error: ‘outbuf’ was not declared
in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:265: error: ‘picture_buf’ was not
declared in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘bool
QVideoEncoder::initOutputBuf()’:
../QTFFmpegWrapper/QVideoEncoder.cpp:317: error: ‘outbuf’ was not declared
in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:317: error: expected type-specifier before
‘uint8_t’
../QTFFmpegWrapper/QVideoEncoder.cpp:317: error: expected ‘;’ before
‘uint8_t’
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘void
QVideoEncoder::freeOutputBuf()’:
../QTFFmpegWrapper/QVideoEncoder.cpp:327: error: ‘outbuf’ was not declared
in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:329: error: type ‘<type error>’
argument given to ‘delete’, expected pointer
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘bool
QVideoEncoder::initFrame()’:
../QTFFmpegWrapper/QVideoEncoder.cpp:341: error: ‘picture_buf’ was not
declared in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:341: error: expected type-specifier before
‘uint8_t’
../QTFFmpegWrapper/QVideoEncoder.cpp:341: error: expected ‘;’ before
‘uint8_t’
../QTFFmpegWrapper/QVideoEncoder.cpp:340: warning: unused variable ‘size’
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘void
QVideoEncoder::freeFrame()’:
../QTFFmpegWrapper/QVideoEncoder.cpp:356: error: ‘picture_buf’ was not
declared in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:358: error: type ‘<type error>’
argument given to ‘delete’, expected pointer
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘bool
QVideoEncoder::convertImage(const QImage&)’:
../QTFFmpegWrapper/QVideoEncoder.cpp:378: warning: comparison between signed
and unsigned integer expressions
../QTFFmpegWrapper/QVideoEncoder.cpp:378: warning: comparison between signed
and unsigned integer expressions
../QTFFmpegWrapper/QVideoEncoder.cpp:397: error: ‘picture_buf’ was not
declared in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:421: error: ‘picture_buf’ was not
declared in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp: In member function ‘bool
QVideoEncoder::convertImage_sws(const QImage&)’:
../QTFFmpegWrapper/QVideoEncoder.cpp:472: warning: comparison between signed
and unsigned integer expressions
../QTFFmpegWrapper/QVideoEncoder.cpp:472: warning: comparison between signed
and unsigned integer expressions
../QTFFmpegWrapper/QVideoEncoder.cpp:491: error: ‘uint8_t’ was not declared
in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:491: error: ‘srcplanes’ was not
declared in this scope
../QTFFmpegWrapper/QVideoEncoder.cpp:492: error: expected primary-expression
before ‘)’ token
../QTFFmpegWrapper/QVideoEncoder.cpp:492: error: expected ‘;’ before
‘img’
make: *** [QVideoEncoder.o] Error 1
Original issue reported on code.google.com by ozkan%[email protected] on 3 Jul 2010 at 9:38
segmentation fault
What steps will reproduce the problem?
1. open a large avi video file
2. in seekNextFrame, the call of decodeSeekFrame crash when doing the memcpy in
LastFrame.scanLine(y)
3. The segmentation fault produce allways at same frame number
What is the expected output? What do you see instead?
The end of the video is reached
What version of the product are you using? On what operating system?
ffmpeg SVN revision 20736
SDL 1.2.14
Qt Wrapper 1.01
Os: Windows 7
IDE QTCreator 2.2.0
Please provide any additional information below.
The video failed with my app,
but also with qtffmpegwrapperdemo
Original issue reported on code.google.com by [email protected] on 18 Aug 2011 at 8:40
add audio
do you have any plan to add audio to this library ? or can you show an example
to do that so I can add it myself.
thanks
Original issue reported on code.google.com by ozkan%[email protected] on 27 Jul 2010 at 6:23
Can't decode video
What steps will reproduce the problem?
1. Write a simple main program tp open a file
What is the expected output? What do you see instead?
Expected: An extracted frame.
Instead: The openFile functions fails in the
pCodec=avcodec_find_decoder(pCodecCtx->codec_id); line, which returns NULL.
Probably because pCodecCtx->codec_id is -2147483648.
What version of the product are you using? On what operating system?
Debian wheezy
ii ffmpeg 5:0.8-0.1
audio/video encoder, streaming server & audio/video file converter.
ii gstreamer0.10-ffmpeg 1:0.10.11-4.1
FFmpeg plugin for GStreamer
rc libavcodec51 0.svn20080206-18
ffmpeg codec library
ii libavdevice52 5:0.6.3-0.0
ffmpeg device handling library
rc libavfilter0 4:0.5.2-1
ffmpeg video filtering library
ii libavformat52 5:0.6.3-0.0
ffmpeg file format library
ii libavutil49 4:0.5.2-6
ffmpeg utility library
ii libswscale0 5:0.6.3+git20110613-0.1
ffmpeg video scaling library
Please provide any additional information below.
I tried it with different videos and the libav library prints the correct codec
when the QVideoDecoder is created:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '...':
Metadata:
creation_time : 2000-11-15 00:15:14
Duration: 00:45:40.96, start: 0.000000, bitrate: 290 kb/s
Stream #0.0(eng): Video: svq1, yuv410p, 300x176, 242 kb/s, 12,50 fps, 12,50 tbr, 600 tbn, 600 tbc
Or:
Input #0, avi, from '...':
Metadata:
encoder : Nandub v1.0rc2
Duration: 01:01:35.04, start: 0.000000, bitrate: 1249 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 624x352 [PAR 1:1 DAR 39:22], 23,98 tbr, 23,98 tbn, 23,98 tbc
Original issue reported on code.google.com by [email protected] on 4 Aug 2011 at 10:12
Attachments:
Are you interested in updating to a newer FFmpeg?
What steps will reproduce the problem?
1. FFmpeg is ever-evolving, the 0.6 tarball is newer than this wrapper
2. FFmpeg coders include new and frustrating challenges with each release
3.
What is the expected output? What do you see instead?
I found that the #include "error.h" found in the new libavutil/avutil.h makes
many things "unhappy" in my program.
What version of the product are you using? On what operating system?
FFmpeg 0.6 on Win32/Visual Studio
Please provide any additional information below.
Just curious if you are also working on moving the wrapper forward with new
releases of FFmpeg?
Original issue reported on code.google.com by [email protected] on 19 Jan 2011 at 9:32
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