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

thanking you

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.

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

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?

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

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

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

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.

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?

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"

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

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

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!

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?