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<p>i think your problem is the url you are passing to "avformat_open_input", RTSP runs on top of TCP, i doubt it works without a valid hostname/ip address.
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<p>Mihai,<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Libav-user <libav-user-bounces@ffmpeg.org> on behalf of Carlos Esponda <esponda.carlos9@gmail.com><br>
<b>Sent:</b> Friday, July 31, 2020 2:25 AM<br>
<b>To:</b> libav-user@ffmpeg.org<br>
<b>Subject:</b> [NEWSLETTER] [Libav-user] help</font>
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<div dir="ltr">I am currently trying to read an RTSP stream with FFMPEG and can't get past avformat_open_input. <br>
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Any help would be appreciated!
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<div>thank you.<br>
<br>
#include <iostream><br>
<br>
extern "C"<br>
{<br>
#include <libavformat/avformat.h><br>
#include <libavcodec/avcodec.h><br>
#include <libavcodec/codec.h><br>
#include "libswscale/swscale.h"<br>
#include "libavutil/avutil.h"<br>
#include "libavutil/frame.h"<br>
#include "libavcodec/codec_id.h"<br>
#include "libavutil/pixfmt.h"<br>
#include "libavutil/imgutils.h"<br>
}<br>
<br>
<br>
int decode_interrupt(void*);<br>
<br>
int main()<br>
{<br>
AVFrame* frame = NULL;<br>
AVFormatContext* formatc = NULL;<br>
const AVIOInterruptCB int_cb = { decode_interrupt, NULL };<br>
AVCodec* codec = NULL;<br>
AVCodecContext* codecc = NULL;<br>
char* error = new char[255];<br>
<br>
if (!(frame = av_frame_alloc())) {<br>
std::cout << " failed to alloc frame";<br>
return -1;<br>
}<br>
formatc = avformat_alloc_context();<br>
formatc->interrupt_callback = int_cb;<br>
<br>
codec = avcodec_find_decoder(AV_CODEC_ID_H264);<br>
codecc = avcodec_alloc_context3(codec);<br>
int result = avcodec_open2(codecc, codec, NULL);<br>
if (result != 0) {<br>
std::cout << "failed to open codec";<br>
}<br>
<br>
result = avformat_open_input(&formatc, "rtsp://:8554/testStream", NULL, NULL);<br>
if (result != 0) {<br>
av_strerror(result, error, 255);<br>
std::cout << "couldnt open input " << error<< std::endl;<br>
avformat_close_input(&formatc);<br>
return -1;<br>
}<br>
<br>
result = avformat_find_stream_info(formatc, NULL);<br>
if (result != 0) {<br>
std::cout << "could not find stream information\n";<br>
return -1;<br>
}<br>
<br>
return 0;<br>
}<br>
<br>
int decode_interrupt(void * ctx) {<br>
std::cout << "interupted\n";<br>
return -1;<br>
}
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