[Libav-user] [NEWSLETTER] help

[Carlos Esponda]

I tried it, confirm it was valid with VLC however “immediate exit
requested” is still the error I get.

On Fri, Jul 31, 2020 at 9:30 AM KeithG <ys3al35l at gmail.com> wrote:

> Try this URL:
>
> rtsp://wowza.radia.cz:1935/CRo/DDur.stream
>
> Keith
>
> On Fri, Jul 31, 2020 at 9:11 AM Carlos Esponda <esponda.carlos9 at gmail.com>
> wrote:
>
>> I took out my IP address just for anonymity. (I’m new to networking and
>> not sure if it mattered) however I confirm my url works by testing it with
>> VLC.  The error I always get is “immediate exit requested”
>>
>> On Fri, Jul 31, 2020 at 8:34 AM Mihai Chindea <mihai.chindea at uti.eu.com>
>> wrote:
>>
>>> 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.
>>>
>>>
>>> Mihai,
>>>
>>>
>>> ------------------------------
>>> *From:* Libav-user <libav-user-bounces at ffmpeg.org> on behalf of Carlos
>>> Esponda <esponda.carlos9 at gmail.com>
>>> *Sent:* Friday, July 31, 2020 2:25 AM
>>> *To:* libav-user at ffmpeg.org
>>> *Subject:* [NEWSLETTER] [Libav-user] help
>>>
>>> I am currently trying to read an RTSP stream with FFMPEG and can't get
>>> past avformat_open_input.
>>>
>>> Any help would be appreciated!
>>>
>>> thank you.
>>>
>>>   #include <iostream>
>>>
>>> extern "C"
>>> {
>>> #include <libavformat/avformat.h>
>>> #include <libavcodec/avcodec.h>
>>> #include <libavcodec/codec.h>
>>> #include "libswscale/swscale.h"
>>> #include "libavutil/avutil.h"
>>> #include "libavutil/frame.h"
>>> #include "libavcodec/codec_id.h"
>>> #include "libavutil/pixfmt.h"
>>> #include "libavutil/imgutils.h"
>>> }
>>>
>>>
>>> int decode_interrupt(void*);
>>>
>>> int main()
>>> {
>>>     AVFrame* frame = NULL;
>>>     AVFormatContext* formatc = NULL;
>>>     const AVIOInterruptCB int_cb = { decode_interrupt, NULL };
>>>     AVCodec* codec = NULL;
>>>     AVCodecContext* codecc = NULL;
>>>     char* error = new char[255];
>>>
>>>     if (!(frame = av_frame_alloc())) {
>>>         std::cout << " failed to alloc frame";
>>>         return -1;
>>>     }
>>>     formatc = avformat_alloc_context();
>>>     formatc->interrupt_callback = int_cb;
>>>
>>>     codec = avcodec_find_decoder(AV_CODEC_ID_H264);
>>>     codecc = avcodec_alloc_context3(codec);
>>>     int result = avcodec_open2(codecc, codec, NULL);
>>>     if (result != 0) {
>>>         std::cout << "failed to open codec";
>>>     }
>>>
>>>     result = avformat_open_input(&formatc, "rtsp://:8554/testStream",
>>> NULL, NULL);
>>>     if (result != 0) {
>>>         av_strerror(result, error, 255);
>>>         std::cout << "couldnt open input " << error<< std::endl;
>>>         avformat_close_input(&formatc);
>>>         return -1;
>>>     }
>>>
>>>     result = avformat_find_stream_info(formatc, NULL);
>>>     if (result != 0) {
>>>         std::cout << "could not find stream information\n";
>>>         return -1;
>>>     }
>>>
>>>     return 0;
>>> }
>>>
>>> int decode_interrupt(void * ctx) {
>>>     std::cout << "interupted\n";
>>>     return -1;
>>> }
>>>
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>>>
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>>
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>
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