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I'm trying to execute tutorial01.c using gcc and I have the gcc and tutorial01.c in the same folder along with libavcodec and libavformat and its associated files it gives me this error
fatal error: libavcodec/avcodec.h no such file or directory compilation terminated
when I run
gcc -o tutorial01 tutorial01.c -lavformat -lavcodec -lz through the terminal in ubuntu 12.04
the code is
libavcodec/avcodec.h
#include libavformat/avformat.h
#include stdio.h
void SaveFrame(AVFrame *pFrame, int width, int height, int iFrame)
char szFilename[32];
// Open file
sprintf(szFilename, "frame%d.ppm", iFrame);
pFile=fopen(szFilename, "wb");
if(pFile==NULL)
// Write header
fprintf(pFile, "P6\n%d %d\n255\n", width, height);
// Write pixel data
for(y=0; y& y++)
fwrite(pFrame-&data[0]+y*pFrame-&linesize[0], 1, width*3, pFile);
// Close file
fclose(pFile);
int main(int argc, char *argv[])
AVFormatContext *pFormatC
AVCodecContext
*pFrameRGB;
if(argc & 2)
printf("Please provide a movie file\n");
return -1;
// Register all formats and codecs
av_register_all();
// Open video file
if(av_open_input_file(&pFormatCtx, argv[1], NULL, 0, NULL)!=0)
return -1; // Couldn't open file
// Retrieve stream information
if(av_find_stream_info(pFormatCtx)&0)
return -1; // Couldn't find stream information
// Dump information about file onto standard error
dump_format(pFormatCtx, 0, argv[1], 0);
// Find the first video stream
videoStream=-1;
for(i=0; i&pFormatCtx-&nb_ i++)
if(pFormatCtx-&streams[i]-&codec-&codec_type==CODEC_TYPE_VIDEO)
videoStream=i;
if(videoStream==-1)
return -1; // Didn't find a video stream
// Get a pointer to the codec context for the video stream
pCodecCtx=pFormatCtx-&streams[videoStream]-&
// Find the decoder for the video stream
pCodec=avcodec_find_decoder(pCodecCtx-&codec_id);
if(pCodec==NULL)
fprintf(stderr, "Unsupported codec!\n");
return -1; // Codec not found
// Open codec
if(avcodec_open(pCodecCtx, pCodec)&0)
return -1; // Could not open codec
// Allocate video frame
pFrame=avcodec_alloc_frame();
// Allocate an AVFrame structure
pFrameRGB=avcodec_alloc_frame();
if(pFrameRGB==NULL)
return -1;
// Determine required buffer size and allocate buffer
numBytes=avpicture_get_size(PIX_FMT_RGB24, pCodecCtx-&width,
pCodecCtx-&height);
buffer=(uint8_t *)av_malloc(numBytes*sizeof(uint8_t));
// Assign appropriate parts of buffer to image planes in pFrameRGB
// Note that pFrameRGB is an AVFrame, but AVFrame is a superset
// of AVPicture
avpicture_fill((AVPicture *)pFrameRGB, buffer, PIX_FMT_RGB24,
pCodecCtx-&width, pCodecCtx-&height);
// Read frames and save first five frames to disk
while(av_read_frame(pFormatCtx, &packet)&=0)
// Is this a packet from the video stream?
if(packet.stream_index==videoStream)
// Decode video frame
avcodec_decode_video(pCodecCtx, pFrame, &frameFinished,
packet.data, packet.size);
// Did we get a video frame?
if(frameFinished)
// Convert the image from its native format to RGB
img_convert((AVPicture *)pFrameRGB, PIX_FMT_RGB24,
(AVPicture*)pFrame, pCodecCtx-&pix_fmt, pCodecCtx-&width,
pCodecCtx-&height);
// Save the frame to disk
if(++i&=5)
SaveFrame(pFrameRGB, pCodecCtx-&width, pCodecCtx-&height,
// Free the packet that was allocated by av_read_frame
av_free_packet(&packet);
// Free the RGB image
av_free(buffer);
av_free(pFrameRGB);
// Free the YUV frame
av_free(pFrame);
// Close the codec
avcodec_close(pCodecCtx);
// Close the video file
av_close_input_file(pFormatCtx);
8,11021631
You need to add the path to the libavcodec and libavformat include files to your command line. Find the include/ directory and add
-Ipath/to/include
for each of the relevant include files.
You'll also need to do the same thing for the library directories, using -L.
93k15111205
That error occur due to error in path
-L/home/yourpath/ffmpeg_build/lib/
-I/home/yourpath/ffmpeg_build/include/
ffmpeg_build – Where the files will be built and libraries installed.
create file "execute.sh "
NOW open file and paste the following code :
g++ -Wno-format-zero-length -Wno-write-strings -L/home/yourpath/ffmpeg_build/lib/ -I/home/yourpath/ffmpeg_build/include/ -o output program.cpp -lavcodec -lavformat -lavutil -lavdevice -lswresample -lswscale -lm -lva -lpthread -lvorbis -lvpx -lopus -lz -lpostproc -ldl -lfdk-aac -lmp3lame -lvorbisenc -lvorbisfile -lx264 -ltheora -ltheoraenc -ltheoradec -ldl -lrt -lx265 -lbz2
sh execute.sh and binary will be created in the name "output"
then type ./output for output.
Note : above for C++ , for c code change g++ to gcc
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Copyrights 2005-15 , All rights reservedfatal error: IOStream: No such file or d - C++ Forum
fatal error: IOStream: No such file or d
& fatal error: IOStream: No such file or directory
Jun 13, 2011 at 8:17pm UTC
I know this is a topic well discussed, but I have looked through this and other forums, but others mistakenly use .h.
I am running Ubuntu with G++ 4.5.2.
#include &iostream&
int main()
cout && "Hello world." &&
return -1;
I compile with:
G++ HelloWorld.cpp
My error is:
HelloWorld.cpp:1:20: fatal error: IOStream: No such file or directory
compilation terminated.
I can compile fine with both geany and eclipse IDE, but I am practicing with programming with terminal.
Since it compiles with the IDE, I am leaning toward g++ and libraries being installed correctly.
I have the iostream file in /usr/include/c++/4.5/iostream directory.
I would appreciate any help because I have struggling with this for a couple of days now.
Jun 13, 2011 at 8:32pm UTC
Hi scratch509 I gust go throughout the code and I want to explain something:
In the main function when u return it u return 0 which is an interger that means return nothing.
If u return -1 in any function that means that u are logically that thear is an error.
I hope that u understand .
Jun 13, 2011 at 8:37pm UTC
To build it type:&
make HelloWorld
Jun 13, 2011 at 8:43pm UTC
closed account ()
ARWA wrote:In the main function when u return it u return 0 which is an interger that means return nothing.
You couldn't be anymore wrong. void means you return nothing. When he/she returns -1, he/she returns -1, not 0.
ARWA wrote:If u return -1 in any function that means that u are logically that thear is an error.
What if I had a method that returned -1 on a successful call? It may not be common to return -1 on a successful method call, but neve everybody's coding style is different.
Scratch, a glance at your code reveals no apparent errors. However, considering you're on Ubuntu, installation is different than Windows. It would be beneficial to post this question in the Unix/Linux section of this forum.
Last edited on Jun 13, 2011 at 8:44pm UTC
Jun 13, 2011 at 8:45pm UTC
You might have a problem with case sensitivity.
The header is called iostream, not IOStream. Likewise, the compiler is called g++, not G++.
Jun 13, 2011 at 9:04pm UTC
Thanks everyone for the replies.
I figured out my issue here.
I don't even want to admit it, but it does help if you compile the same file you are editing.
I did take the uppercase and the -1 comment onboard though and will remember it.
I have a nearly similar issue on my MacOSX computer, but there it doesn't even compile with an IDE.
That is my next thing to figure out.
You guys are awesome.
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