When I try to use it with https it logs the following error message.

https protocol not found, recompile FFmpeg with openssl, gnutls, or securetransport enabled.

Here is the video link

I am trying to generate an audio frame for slient audio.

/* frame containing input raw audio */
AVFrame *audio_frame = av_frame_alloc();
if (!audio_frame) {
    return NO;
}

audio_frame->nb_samples     = audio_out_stream->codec->frame_size;
audio_frame->format         = audio_out_stream->codec->sample_fmt;
audio_frame->channel_layout = audio_out_stream->codec->channel_layout;

/* the codec gives us the frame size, in samples,
 * we calculate the size of the samples buffer in bytes */
int buffer_size = av_samples_get_buffer_size(NULL,
                                             audio_out_stream->codec->channels,
                                             audio_out_stream->codec->frame_size,
                                             audio_out_stream->codec->sample_fmt, 0);
if (buffer_size < 0) {
    return NO;
}

uint16_t *samples = av_malloc(buffer_size);
memset(samples, 0, buffer_size);

/* setup the data pointers in the AVFrame */
if (avcodec_fill_audio_frame(audio_frame,
                             audio_out_stream->codec->channels,
                             audio_out_stream->codec->sample_fmt,
                             (const uint8_t*)samples, buffer_size, 0) < 0) {
    return NO;
}

/* encode a single tone sound */
    AVPacket packet;

    av_init_packet(&packet);
    packet.data = NULL; // packet data will be allocated by the encoder
    packet.size = 0;

    /* encode the samples */
    int got_output;
    if (avcodec_encode_audio2(audio_out_stream->codec, &packet, audio_frame, &got_output) < 0) {
        return NO;
    }
    if (got_output) {
        packet.pts = 30*numPacketsSent;
        numPacketsSent++;

        int res = av_write_frame(ofmt_ctx, &packet);
        if (res < 0) {
            return NO;
        }
    }
}
av_frame_free(&audio_frame);

And, I am getting crash in avcodec_encode_audio2 function.
Can you please let me know what's wrong here?

I am using this library through this wrapper:

https://github.com/OpenWatch/FFmpegWrapper

However, I am getting the error:

[NULL @ 0x7fb59a012a00] Unable to find a suitable output format for '/Users/mytestuser/Library/Developer/CoreSimulator/Devices/E0F92C98-411C-4CEA-8FC9-CE8E33F0A222/data/Containers/Data/Application/069294B7-7D45-4760-B3B2-030649DDFE1A/Documents/video'
2015-08-17 17:30:34.400 TestProject[9671:309324] codec not found: h264

What can I do to fix the issue?
Remember that I installed it all through cocoapods.

We are converting video using "ffmpeg" library , but after conversion video gets converted in landscape . I need to no change in orientation of video. I have done some R&D but only web side conversion solution is available. Please help me to correct orientation issue in objective c.

This is a dead project; I doubt it worked for anyone.

cocoapods, I was wondering why I download the repository, and "pod package", the *.a files are not included in the framework

ffmpeg -i http://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_50mb.mp4 -ss 00:01:08 -t 00:01:18 -async 1 cut.mp4

Hello,
The above command seems to do what I need (trim a remote video file and save the results locally).
I need to do this on my iPhone but I could not use the library. The documentation is very obscure.

Can anyone help me?
Thanks

I want to convert an hls to mp4. But I don't know the function in C that is need for my task.
Thannks in advance!

Does this FFmpeg-IOS support Mac OS APP? I want to develop an APP for Mac OS.

I just pulled this down through cocoapods, but the only way I know how to use FFMPEG is through something like ffmpeg -i inputfile.flac output.wav. I am trying to convert a flac file to wav, how can I do this? If there's not a simple answer to this, where in the code should I investigate?

first of all thank you for these build scripted.

my goal was to compile a custom version of ffmpeg with your build scripts but im running into a small problem when compiling with the default settings which i dont quiet understand and was hoping you had a bit feedback or knowhow about this issue:

• i cloned this repository and installed the latest version of gas-preprocessor.pl
• i ran ./build-libssl.sh and ./build-librtmp.sh with success and am seeing libcrypto.a, librtmp.a and libssl.a in dependencies/lib and their corresponding header files in dependencies/include
• then executing ./build-ffmpeg.sh results in the following output:

Downloading ffmpeg-2.2.tar.bz2
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 6860k  100 6860k    0     0  2518k      0  0:00:02  0:00:02 --:--:-- 2519k
Building without ccache
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
ERROR: librtmp not found

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
[email protected] mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solving the problem.

i can figure out why librtmp isn't found because it exists in dependencies/lib and the linker flags seem to be correct --extra-ldflags="... -L${OUTPUTDIR}/lib"

Now that it is possible to bundle dynamic libraries with ios, would it be possible to build .dylibs instead of .a files? What would that involve/would it be better?

I'd like to use FFPlay for my video player. Any plans to include that in your build?

@jeffreywescott @chrisballinger Hi , i did audio recorder in .m4a format but here, i need to send server in .mp3 or .wav format ??

thanking you

Hi, is this build support RTSP on iOS8 ? Thanks.