wang-bin / qtav Goto Github PK

the logic for both AudioThread::run() and VideoThread::run() are almost the same. So can we just use the common AVThread::run() and just add some functions in run() to be implemeneted in AudioThread and VideoThread? Then the code will always keep the same logic.

avthread not exit

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detect whether the stream is seekable. if not, reload

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First thanks for this,I have not using this lib,but it seems great,there is one thing that I could not find any formated document about this lib.
how about provide some document or article to document the api and some examples?
thanks

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Trying to play a video stream coming from a server with my own RTSP implementation. After a few seconds of normal video play, the BlockingQueue in AVDemuxer becomes and remains empty

http://pastebin.com/7V8qaYWd

they should be in build dir

the first time run qmake, QMAKE use seperator '', the run make will fail.

if run qmake again, QMAKE is right.

In some case it's useful.

they should be in builddir/config.tests

ubuntu 11.10
make之后的错误如下

AudioDecoder.cpp:50:84: error: ‘avcodec_decode_audio4’ was not declared in this scope
AudioDecoder.cpp:60:42: error: ‘AVFrame’ has no member named ‘nb_samples’
AudioDecoder.cpp:109:10: error: ‘AV_SAMPLE_FMT_U8P’ was not declared in this scope
AudioDecoder.cpp:111:46: error: ‘AVFrame’ has no member named ‘extended_data’
AudioDecoder.cpp:112:38: error: ‘AVFrame’ has no member named ‘nb_samples’
AudioDecoder.cpp:119:10: error: ‘AV_SAMPLE_FMT_S16P’ was not declared in this scope
AudioDecoder.cpp:121:48: error: ‘AVFrame’ has no member named ‘extended_data’
AudioDecoder.cpp:122:38: error: ‘AVFrame’ has no member named ‘nb_samples’
AudioDecoder.cpp:129:10: error: ‘AV_SAMPLE_FMT_S32P’ was not declared in this scope
AudioDecoder.cpp:131:48: error: ‘AVFrame’ has no member named ‘extended_data’
AudioDecoder.cpp:132:38: error: ‘AVFrame’ has no member named ‘nb_samples’
AudioDecoder.cpp:139:10: error: ‘AV_SAMPLE_FMT_FLTP’ was not declared in this scope
AudioDecoder.cpp:141:42: error: ‘AVFrame’ has no member named ‘extended_data’
AudioDecoder.cpp:142:38: error: ‘AVFrame’ has no member named ‘nb_samples’
AudioDecoder.cpp:149:10: error: ‘AV_SAMPLE_FMT_DBLP’ was not declared in this scope
AudioDecoder.cpp:151:44: error: ‘AVFrame’ has no member named ‘extended_data’
AudioDecoder.cpp:152:38: error: ‘AVFrame’ has no member named ‘nb_samples’

是由于 avcodec_decode_audio4 不存在，原因是 avcodec 库中此时的接口是 avcodec_decode_audio3 。

以下是 libavcodec-dev 的信息

root@ubuntu:~/QtAV# apt-cache show libavcodec-dev
Package: libavcodec-dev
Priority: optional
Section: libdevel
Installed-Size: 8556
Maintainer: Ubuntu Core Developers [email protected]
Original-Maintainer: Debian multimedia packages maintainers [email protected]
Architecture: amd64
Source: libav
Version: 4:0.7.2-1ubuntu1
Depends: libavcodec53 (>= 4:0.7.2-1ubuntu1) | libavcodec-extra-53 (>= 4:0.7.2), libavcodec53 (<= 4:0.7.2-99) | libavcodec-extra-53 (<= 4:0.7.2.99), libavutil-dev (= 4:0.7.2-1ubuntu1)
Suggests: libfaad-dev, libgsm1-dev, libogg-dev, libschroedinger-dev, libspeex-dev, libtheora-dev (>> 0.0.0.alpha4), libvorbis-dev, libx11-dev, libxext-dev, zlib1g-dev, libraw1394-dev, libdc1394-22-dev
Filename: pool/main/liba/libav/libavcodec-dev_0.7.2-1ubuntu1_amd64.deb
Size: 3110070
MD5sum: 9653f9d3e2e777463d14c0771a261cc1
SHA1: 416f419f3b246c06acbc2f43a66fcb7ec86a956c
SHA256: 0b48a9114e5573411731e125e52edc46425ab770389521b22528974b57964ee2
Description-en: Development files for libavcodec
This is the codec library from Libav. It supports most existing
encoding formats (MPEG, DivX, MPEG4, AC3, DV...).
.
This package contains the header files and static libraries needed to
compile applications or shared objects that use libavcodec.
Homepage: http://libav.org/
Description-md5: 46ab6aef4fc6e2ec40849bd82216def1
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 18m

Package: libavcodec-dev
Priority: optional
Section: libdevel
Installed-Size: 8556
Maintainer: Ubuntu Developers [email protected]
Original-Maintainer: Debian multimedia packages maintainers [email protected]
Architecture: amd64
Source: libav
Version: 4:0.7.6-0ubuntu0.11.10.3
Depends: libavcodec53 (>= 4:0.7.6-0ubuntu0.11.10.3) | libavcodec-extra-53 (>= 4:0.7.6), libavcodec53 (<= 4:0.7.6-99) | libavcodec-extra-53 (<= 4:0.7.6.99), libavutil-dev (= 4:0.7.6-0ubuntu0.11.10.3)
Suggests: libfaad-dev, libgsm1-dev, libogg-dev, libschroedinger-dev, libspeex-dev, libtheora-dev (>> 0.0.0.alpha4), libvorbis-dev, libx11-dev, libxext-dev, zlib1g-dev, libraw1394-dev, libdc1394-22-dev
Filename: pool/main/liba/libav/libavcodec-dev_0.7.6-0ubuntu0.11.10.3_amd64.deb
Size: 3122818
MD5sum: a3be93d9fb14885fc4d7ec4b75de0f04
SHA1: d36df2e41ab3058d4b02a16c175c600f5c638ec4
SHA256: 58fa47ee349435152ee85e9a2650ff0edbfc897be894c71d83a47e24d9f47012
Description-en: Development files for libavcodec
This is the codec library from Libav. It supports most existing
encoding formats (MPEG, DivX, MPEG4, AC3, DV...).
.
This package contains the header files and static libraries needed to
compile applications or shared objects that use libavcodec.
Homepage: http://libav.org/
Description-md5: 46ab6aef4fc6e2ec40849bd82216def1
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 18m

编译后设置环境变量

root@ubuntu:/QtAV# export CPATH=/opt/libav/include/:$CPATH
root@ubuntu:/QtAV# export LIBRARY_PATH=/opt/libav/lib/:$LIBRARY_PATH

您的第二个变量中 （export LIBRARY_PATH=ffmpeg_path/include:portaudio_path/lib:$LIBRARY_PATH） 应该是ffmpeg_path/lib 写成了 ffmpeg_path/include了。

make

发现如下错误

AVDemuxer.cpp: In member function ‘qreal QtAV::AVDemuxer::frameRate() const’:
AVDemuxer.cpp:560:27: error: ‘AVStream’ has no member named ‘r_frame_rate’
AVDemuxer.cpp:560:61: error: ‘AVStream’ has no member named ‘r_frame_rate’
AVDemuxer.cpp: In member function ‘bool QtAV::AVDemuxer::findAVCodec()’:
AVDemuxer.cpp:689:46: error: ‘CODEC_ID_H264’ was not declared in this scope

修改宏 CODEC_ID_H264 到 AV_CODEC_ID_H264 ，宏声明发生了变化。

修改 r_frame_rate 到 avg_frame_rate。也是定义发生了变化导致的。

继续make 发现如下问题

编译的最后 错误如下

/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to av_seek_frame@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toav_free@LIBAVUTIL_52'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avcodec_open2@LIBAVCODEC_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toav_strerror@LIBAVUTIL_52'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avformat_version@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavformat_close_input@LIBAVFORMAT_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avcodec_decode_video2@LIBAVCODEC_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toav_free_packet@LIBAVCODEC_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avformat_network_deinit@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavcodec_close@LIBAVCODEC_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avcodec_version@LIBAVCODEC_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavpicture_get_size@LIBAVCODEC_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avformat_alloc_context@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavpicture_fill@LIBAVCODEC_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to av_dump_format@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavformat_network_init@LIBAVFORMAT_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to av_new_packet@LIBAVCODEC_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavformat_find_stream_info@LIBAVFORMAT_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avcodec_find_decoder@LIBAVCODEC_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavformat_open_input@LIBAVFORMAT_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to av_register_all@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavcodec_alloc_frame@LIBAVCODEC_55'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to av_read_frame@LIBAVFORMAT_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavutil_version@LIBAVUTIL_52'
/root/QtAV/lib_linux_x64/libQtAV.so: undefined reference to avcodec_flush_buffers@LIBAVCODEC_55' /root/QtAV/lib_linux_x64/libQtAV.so: undefined reference toavcodec_decode_audio4@LIBAVCODEC_55'

导入环境变量 export LD_LIBRARY_PATH=/opt/libav/lib/:$LD_LIBRARY_PATH 后

make 通过

must be in initStatistics()

I need to use QtAV in my project and used the instructions given in this link (https://github.com/wang-bin/QtAV/wiki/Use-QtAV-In-Your-Projects). As suggested in 2nd step I just copied the "QtAV-master" folder to "myproject" folder and renamed it as "QtAV". In step 4, I used the one folder inside myproject as the debug folder,

BUILD_DIR=C:\Qt\Qt5.0.1\Tools\QtCreator\bin\myproject\myplayer-build-Desktop_Qt_5_0_1_MSVC2010_32bit-Debug

Now, I get the following error when running,

WARNING: Include file C:/Qt/Qt5.0.1/Tools/QtCreator/bin/myproject/myplayer/libQtAV.pro not found

But, I don't have a myplayer folder inside myproject, pls see the following screen capture.

Please kindly help.

cache size depends on fps

Audio: dca [DCA (DTS Coherent Acoustics)]

sample rate: 48000, channels: 7

[dca @ 02387560] Number of channels changed in DCA decoder (6 -> 7)

Makefile is in source dir if source dir is a subdir of working dir(build dir), even if use qmake -o option

backword not work

1. Try to use GLES2
2. Still use GL 1.x. But some types are conflict

`
executing config test gl

• cd G:\dev\build-QtAV-Qt502MinGWsjlj-Release\config.tests\gl && D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\bin\qmake.exe "CONFIG -= qt debug_and_release app_bundle lib_bundle" G:/dev/QtAV/config.tests/gl
• cd G:\dev\build-QtAV-Qt502MinGWsjlj-Release\config.tests\gl && mingw32-make
  g++ -c -pipe -fno-keep-inline-dllexport -O2 -frtti -Wall -Wextra -fexceptions -mthreads -DUNICODE -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_OPENGL_ES_2 -DQT_OPENGL_ES_2_ANGLE -IG:\dev\QtAV\config.tests\gl -I"D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include" -I"D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include\QtOpenGL" -I"D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include\QtWidgets" -I"D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include\QtGui" -I"D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include\QtCore" -I"." -I"." -I"D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\mkspecs\win32-g++" -o main.o G:\dev\QtAV\config.tests\gl\main.cpp

In file included from G:\dev\QtAV\config.tests\gl\main.cpp:26:0:

d:\qt\qt5.0.2-mingw\tools\mingw\bin../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/GL/gl.h:34:16: error: conflicting declaration 'typedef double GLdouble'

In file included from D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include\QtOpenGL/qgl.h:47:0,
from G:\dev\QtAV\config.tests\gl\main.cpp:21:

D:\Qt\Qt5.0.2-mingw\5.0.2\mingw47_32\include/QtGui/qopengl.h:71:17: error: 'GLdouble' has a previous declaration as 'typedef GLfloat GLdouble'

makefile:381: recipe for target 'main.o' failed

mingw32-make: *** [main.o] Error 1

test gl FAILED
`

is it supported?

If simply set the parent, the renderers will not update their contents. Is there some flags or attributes to fix this?
Currently, every widget in videowall is a toplevel widget. It's better to use only on toplevel widget, and make renderers as it's children.

no current time

Just open stdin?
http://stackoverflow.com/questions/12999674/ffmpeg-which-file-formats-support-stdin-usage

VideoRendererPrivate::scale_in_qt = false result in resizing decoded picture not by Qt, but by swscale, ipp etc. if use ipp, program crashes

check whether avthread is running when end. wait and exit when avthread finished(avthread.finished() signal=> demux thread exit?)
if seek happens, then stop waiting
will the thread get an epf packet again?

only for music. music can not call seek(0)

Only for Qt4, to emulate the cache(dstvar, set, srcvar) by writting qmake functions.
http://bbs.et8.net/bbs/showthread.php?t=915881

with ide visul studio 2012 Ultimate

Direct2DRenderer.cpp
1> EventFilter.cpp
1> GDIRenderer.cpp
1> moc_AudioThread.cpp
1> moc_AVClock.cpp
1> moc_AVDemuxer.cpp
1> moc_AVDemuxThread.cpp
1> moc_AVPlayer.cpp
1> moc_AVThread.cpp
1> Generating Code...
1> Compiling...
1> moc_Direct2DRenderer.cpp
1> moc_EventFilter.cpp
1> moc_GDIRenderer.cpp
1> moc_qtav.cpp
1> moc_VideoCapture.cpp
1> moc_VideoThread.cpp
1> moc_WidgetRenderer.cpp
1> GraphicsItemRenderer.cpp
1> ImageConverter.cpp
1> ImageConverterFF.cpp
1> ImageConverterIPP.cpp
1> ImageRenderer.cpp
1> main.cpp
1>D:\workspace\QtAV\QtAV_Global.h(23): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>D:\workspace\QtAV\AVOutput.h(7): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>D:\workspace\QtAV\VideoRenderer.h(26): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>D:\workspace\QtAV\VideoRenderer.h(30): error C2504: 'AVOutput' : base class undefined
1>D:\workspace\QtAV\VideoRenderer.h(31): error C2065: 'dptr' : undeclared identifier
1>D:\workspace\QtAV\VideoRenderer.h(31): error C2228: left of '.pri' must have class/struct/union
1> type is ''unknown-type''
1>D:\workspace\QtAV\VideoRenderer.h(31): error C2059: syntax error : ')'
1>D:\workspace\QtAV\ImageRenderer.h(7): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>D:\workspace\QtAV\ImageRenderer.h(11): error C2504: 'VideoRenderer' : base class undefined
1>D:\workspace\QtAV\ImageRenderer.h(12): error C2065: 'dptr' : undeclared identifier
1>D:\workspace\QtAV\ImageRenderer.h(12): error C2228: left of '.pri' must have class/struct/union
1> type is ''unknown-type''
1>D:\workspace\QtAV\ImageRenderer.h(12): error C2059: syntax error : ')'
1>d:\workspace\qtav\WidgetRenderer.h(7): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>d:\workspace\qtav\WidgetRenderer.h(11): error C2504: 'ImageRenderer' : base class undefined
1>d:\workspace\qtav\WidgetRenderer.h(13): error C2065: 'dptr' : undeclared identifier
1>d:\workspace\qtav\WidgetRenderer.h(13): error C2228: left of '.pri' must have class/struct/union
1> type is ''unknown-type''
1>d:\workspace\qtav\WidgetRenderer.h(13): error C2059: syntax error : ')'
1>D:\workspace\QtAV\AVClock.h(19): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>D:\workspace\QtAV\AVDemuxer.h(22): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>d:\workspace\qtav\AVPlayer.h(7): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>d:\workspace\qtav\AVPlayer.h(79): error C2146: syntax error : missing ';' before identifier 'demuxer'
1>d:\workspace\qtav\AVPlayer.h(79): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>d:\workspace\qtav\sharedoutput/widget.h(9): error C2757: 'QtAV' : a symbol with this name already exists and therefore this name cannot be used as a namespace name
1>d:\workspace\qtav\sharedoutput/widget.h(28): error C2039: 'WidgetRenderer' : is not a member of 'QtAV'
1> d:\workspace\qtav\qtav.h(7) : see declaration of 'QtAV'
1>d:\workspace\qtav\sharedoutput/widget.h(28): error C2143: syntax error : missing ';' before ''
1>d:\workspace\qtav\sharedoutput/widget.h(28): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>d:\workspace\qtav\sharedoutput/widget.h(29): error C2039: 'AVPlayer' : is not a member of 'QtAV'
1> d:\workspace\qtav\qtav.h(7) : see declaration of 'QtAV'
1>d:\workspace\qtav\sharedoutput/widget.h(29): error C2143: syntax error : missing ';' before ''
1>d:\workspace\qtav\sharedoutput/widget.h(29): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1> Packet.cpp
1> qtav.cpp
1> QtAV_Compat.cpp
1> QtAV_Global.cpp
1> VideoCapture.cpp
1> VideoDecoder.cpp
1> VideoRenderer.cpp
1> Generating Code...
1> Compiling...
1> VideoThread.cpp
1> vo.cpp
1> widget.cpp
1> WidgetRenderer.cpp
1> Generating Code...
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

Without container etc.

Running on QT5 with VS2010. As suggested removed "gl" as well. Now I am getting this error. Pls advice. Thanks.

Error: dependent 'C:\QtAV-master\QtAV-build-Desktop_Qt_5_0_1_MSVC2010_32bit-Debug\lib_win32\QtAVd1.dll' does not exist.

null AudioOutput etc

we should draw the video after background updated if image is available.

cannot play mp3

currently the shortcut 'N' is not the exactly 1 frame

init audio device may take a lot of time, need another thread. on my ubuntu, it cost about 10 seconds

If external clock is used, video can sync to the clock correctly, but audio not.

after commit c168f0b

video will start delay and delay

e.g. audio without video, only audio thread is required. now will create both

Sir, many thanks for providing such a clean abstraction over libav.

In the simpleplayer example, was wondering how best to go about resizing the Renderer to reflect the size of the currently played video.

Also, I tried taking the GraphicsView example and extending it to multiple videos, but it results in failure in the VideoThread. Does this have something to do with time syncronization?

Please suggest a way to acheive the same, I would like to update the examples with these added functionality.

Thanks & Regards.

it seem's portaudio cause the crash. player moves to a new thread, then deleted in mainthread, then new it again. Pa_Initialize() failed

top level changes too frequent

try swresample and avresample, or avfilter

sometimes it only update when resizing. but if we emit a singal in write() and commect to update, things go right.

compile failed.
https://github.com/2of1/d2d1headers

it's owned by AVPlayer. but not be deleted when player destroyed. should we let AVOutput be something like a shared ptr?

should we delete old output in AVPlayer::setAVOutput?

add a control bar, with progress slider, volume slider, play, stop, pause/continue, forward/backward, open, set, about buttons etc.