Recherche avancée

Médias (91)

Autres articles (70)

  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (10206)

  • how to combine an image stream and an audio stream together with transcoding

    11 novembre 2020, par SolskGaer

    I tried the method mentioned in this link to capture audio stream from an iPhone, and want to combine the audio stream with an image stream(10 fps) which can be acquired via http. But the output I got has messed up audio and the video speed is way faster than the input, here is the command I used to generate the video ffmpeg -f avfoundation -i ":4" -f mjpeg -i http://127.0.0.1:8888 -c:a aac -c:v libx264 out.mp4, how do I fix the problem ? By the way, when I transcoding audio/video only, it worked exactually as expected.

    


  • Use FFMPEG mux flv and send rtmp on IOS

    5 novembre 2020, par downloss

    I would like to use iphone camera & microphone to capture information pushed out through FFMPEG RTMP Streaming

    



    The following Function capture information on IOS

    



    - (void)captureOutput:(AVCaptureOutput *)captureOutput  didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection
{    
    if (connection == videoCaptureConnection)
    {
        [manager264 encoderToH264:sampleBuffer];
    }
    else if (connection == audioCaptureConnection)
    {
        [manager264 encoderToMP3:sampleBuffer];
    }
}


    



    Initialization FFMPEG

    



    - (int)setX264Resource
{
    Global_Variables_VVV = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    avformat_network_init();
    av_register_all();

    pFormatCtx = avformat_alloc_context();
    avformat_alloc_output_context2(&pFormatCtx, NULL, "flv", out_file);
    fmt = pFormatCtx->oformat;

    //Open output URL
    if (avio_open(&pFormatCtx->pb, out_file, AVIO_FLAG_READ_WRITE) < 0)
    {
        printf("Failed to open output file! \n");
        return -1;
    }

    /* Add the audio and video streams using the default format codecs
     * and initialize the codecs. */
    video_st = NULL;
    audio_st = NULL;
   if (fmt->video_codec != AV_CODEC_ID_NONE) {
        video_st = add_stream(pFormatCtx, &pCodec, AV_CODEC_ID_H264);
    }
   if (fmt->audio_codec != AV_CODEC_ID_NONE) {
        audio_st = add_stream(pFormatCtx, &aCodec, AV_CODEC_ID_MP3);
    }

    /* Now that all the parameters are set, we can open the audio and
     * video codecs and allocate the necessary encode buffers. */
    if (video_st)
        [self open_video:pFormatCtx avcodec:pCodec avstream:video_st];

    if (audio_st)
        [self open_audio:pFormatCtx avcodec:aCodec avstream:audio_st];

    // Show some Information
    av_dump_format(pFormatCtx, 0, out_file, 1);

    //Write File Header
    avformat_write_header(pFormatCtx, NULL);

    av_new_packet(&pkt, picture_size);
    av_new_packet(&pkt2, picture_size);

    AVCodecContext *c = video_st->codec;

    y_size = c->width * c->height;

    if (pFrame)
        pFrame->pts = 0;

    if(aFrame)
    {
        aFrame->pts = 0;
    }

    return 0;
}

static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id)
{
    AVCodecContext *c;
    AVStream *st;
    /* find the encoder */
    *codec = avcodec_find_encoder(codec_id);
    if (!(*codec))
    {
        NSLog(@"Could not find encoder for '%s'\n",
          avcodec_get_name(codec_id));
    }
    st = avformat_new_stream(oc, *codec);
    if (!st)
    {
        NSLog(@"Could not allocate stream\n");
    }
    st->id = oc->nb_streams-1;
    c = st->codec;
    switch ((*codec)->type)
    {
        case AVMEDIA_TYPE_AUDIO:
            c->codec_id = AV_CODEC_ID_MP3;
            c->codec_type = AVMEDIA_TYPE_AUDIO;
            c->channels = 1;

            c->sample_fmt = AV_SAMPLE_FMT_S16P;
            c->bit_rate = 128000;
            c->sample_rate = 44100;
            c->channel_layout = AV_CH_LAYOUT_MONO;
            break;
        case AVMEDIA_TYPE_VIDEO:
            c->codec_id = AV_CODEC_ID_H264;
            c->codec_type=AVMEDIA_TYPE_VIDEO;
            /* Resolution must be a multiple of two. */
            c->width    = 720;
            c->height   = 1280;
            /* timebase: This is the fundamental unit of time (in seconds) in terms
             * of which frame timestamps are represented. For fixed-fps content,
             * timebase should be 1/framerate and timestamp increments should be
             * identical to 1. */
            c->time_base.den = 30;
            c->time_base.num = 1;
            c->gop_size      = 15; /* emit one intra frame every twelve frames at most */
            c->pix_fmt       = PIX_FMT_YUV420P;
            c->max_b_frames = 0;
            c->bit_rate = 3000000;
            c->qmin = 10;
            c->qmax = 51;

            break;
        default:
            break;
    }
    /* Some formats want stream headers to be separate. */
    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
        c->flags |= CODEC_FLAG_GLOBAL_HEADER;
    return st;
}


    



    SampleBuffer will turn into H264 and pushed out RTMP Streaming

    



    - (void)encoderToH264:(CMSampleBufferRef)sampleBuffer
{
    CVPixelBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
    if (CVPixelBufferLockBaseAddress(imageBuffer, 0) == kCVReturnSuccess)
    {
        UInt8 *bufferbasePtr = (UInt8 *)CVPixelBufferGetBaseAddress(imageBuffer);
        UInt8 *bufferPtr = (UInt8 *)CVPixelBufferGetBaseAddressOfPlane(imageBuffer,0);
        UInt8 *bufferPtr1 = (UInt8 *)CVPixelBufferGetBaseAddressOfPlane(imageBuffer,1);
        size_t buffeSize = CVPixelBufferGetDataSize(imageBuffer);
        size_t width = CVPixelBufferGetWidth(imageBuffer);
        size_t height = CVPixelBufferGetHeight(imageBuffer);
        size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer);
        size_t bytesrow0 = CVPixelBufferGetBytesPerRowOfPlane(imageBuffer,0);
        size_t bytesrow1  = CVPixelBufferGetBytesPerRowOfPlane(imageBuffer,1);
        size_t bytesrow2 = CVPixelBufferGetBytesPerRowOfPlane(imageBuffer,2);
        UInt8 *yuv420_data = (UInt8 *)malloc(width * height *3/ 2); // buffer to store YUV with layout YYYYYYYYUUVV


        /* convert NV12 data to YUV420*/
        UInt8 *pY = bufferPtr ;
        UInt8 *pUV = bufferPtr1;
        UInt8 *pU = yuv420_data + width*height;
        UInt8 *pV = pU + width*height/4;
        for(int i =0;i/Read raw YUV data
        picture_buf = yuv420_data;
        pFrame->data[0] = picture_buf;              // Y
        pFrame->data[1] = picture_buf+ y_size;      // U
        pFrame->data[2] = picture_buf+ y_size*5/4;  // V

        int got_picture = 0;

        // Encode
        pFrame->width = 720;
        pFrame->height = 1280;
        pFrame->format = PIX_FMT_YUV420P;

        AVCodecContext *c = video_st->codec;
        int ret = avcodec_encode_video2(c, &pkt, pFrame, &got_picture);
        if(ret < 0)
        {
            printf("Failed to encode! \n");
        }

        if (got_picture==1)
        {
            /* Compute current audio and video time. */
            video_time = video_st ? video_st->pts.val * av_q2d(video_st->time_base) : 0.0;
            pFrame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base);

            if(pkt.size != 0)
            {
                printf("Succeed to encode frame: %5lld\tsize:%5d\n", pFrame->pts, pkt.size);
                pkt.stream_index = video_st->index;
                ret = av_write_frame(pFormatCtx, &pkt);
                av_free_packet(&pkt);
            }
        }
        free(yuv420_data);
    }
    CVPixelBufferUnlockBaseAddress(imageBuffer, 0);
}


    



    SampleBuffer will turn into MP3 and pushed out RTMP Streaming

    



    -(void)encoderToMP3:(CMSampleBufferRef)sampleBuffer
{
    CMSampleTimingInfo timing_info;
    CMSampleBufferGetSampleTimingInfo(sampleBuffer, 0, &timing_info);
    double  pts=0;
    double  dts=0;
    AVCodecContext *c;
    int got_packet, ret;
    c = audio_st->codec;
    CMItemCount numSamples = CMSampleBufferGetNumSamples(sampleBuffer);

    NSUInteger channelIndex = 0;

    CMBlockBufferRef audioBlockBuffer = CMSampleBufferGetDataBuffer(sampleBuffer);

    size_t audioBlockBufferOffset = (channelIndex * numSamples * sizeof(SInt16));
    size_t lengthAtOffset = 0;
    size_t totalLength = 0;
    SInt16 *samples = NULL;
    CMBlockBufferGetDataPointer(audioBlockBuffer, audioBlockBufferOffset, &lengthAtOffset, &totalLength, (char **)(&samples));

    const AudioStreamBasicDescription *audioDescription = CMAudioFormatDescriptionGetStreamBasicDescription(CMSampleBufferGetFormatDescription(sampleBuffer));

    SwrContext *swr = swr_alloc();

    int in_smprt = (int)audioDescription->mSampleRate;
    av_opt_set_int(swr, "in_channel_layout",  AV_CH_LAYOUT_MONO, 0);
    av_opt_set_int(swr, "out_channel_layout", audio_st->codec->channel_layout,  0);

    av_opt_set_int(swr, "in_channel_count", audioDescription->mChannelsPerFrame,  0);
    av_opt_set_int(swr, "out_channel_count", 1,  0);

    av_opt_set_int(swr, "out_channel_layout", audio_st->codec->channel_layout,  0);
    av_opt_set_int(swr, "in_sample_rate",     audioDescription->mSampleRate,0);

    av_opt_set_int(swr, "out_sample_rate",    audio_st->codec->sample_rate,0);

    av_opt_set_sample_fmt(swr, "in_sample_fmt",  AV_SAMPLE_FMT_S16, 0);

    av_opt_set_sample_fmt(swr, "out_sample_fmt", audio_st->codec->sample_fmt,  0);

    swr_init(swr);
    uint8_t **input = NULL;
    int src_linesize;
    int in_samples = (int)numSamples;
    ret = av_samples_alloc_array_and_samples(&input, &src_linesize, audioDescription->mChannelsPerFrame, in_samples, AV_SAMPLE_FMT_S16P, 0);

    *input=(uint8_t*)samples;
    uint8_t *output=NULL;

    int out_samples = av_rescale_rnd(swr_get_delay(swr, in_smprt) +in_samples, (int)audio_st->codec->sample_rate, in_smprt, AV_ROUND_UP);

    av_samples_alloc(&output, NULL, audio_st->codec->channels, out_samples, audio_st->codec->sample_fmt, 0);
    in_samples = (int)numSamples;
    out_samples = swr_convert(swr, &output, out_samples, (const uint8_t **)input, in_samples);

    aFrame->nb_samples =(int) out_samples;

    ret = avcodec_fill_audio_frame(aFrame, audio_st->codec->channels, audio_st->codec->sample_fmt,
                                   (uint8_t *)output,
                                   (int) out_samples *
                                   av_get_bytes_per_sample(audio_st->codec->sample_fmt) *
                                   audio_st->codec->channels, 1);
    if (ret < 0)
    {
        fprintf(stderr, "Error fill audio frame: %s\n", av_err2str(ret));
    }
    aFrame->channel_layout = audio_st->codec->channel_layout;
    aFrame->channels=audio_st->codec->channels;
    aFrame->sample_rate= audio_st->codec->sample_rate;

    if (timing_info.presentationTimeStamp.timescale!=0)
        pts=(double) timing_info.presentationTimeStamp.value/timing_info.presentationTimeStamp.timescale;


    aFrame->pts = pts*audio_st->time_base.den;
    aFrame->pts = av_rescale_q(aFrame->pts, audio_st->time_base, audio_st->codec->time_base);

    ret = avcodec_encode_audio2(c, &pkt2, aFrame, &got_packet);

    if (ret < 0)
    {
        fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
    }
    swr_free(&swr);

    if (got_packet)
    {
        pkt2.stream_index = audio_st->index;        

        // Write the compressed frame to the media file.

        ret = av_interleaved_write_frame(pFormatCtx, &pkt2);
        if (ret != 0)
        {
            fprintf(stderr, "Error while writing audio frame: %s\n", av_err2str(ret));
            av_free_packet(&pkt2);
        }
    }
}


    



    Soon "Broken pipe" problem occurs after execution.
PTS is currently feeling is not adjusted, but do not know how to adjust the PTS.

    



    2016-03-09 16:57:41.058 PoliceCamPlayer[1004:193465] recordVideo....
[libx264 @ 0x12f8b6e00] using cpu capabilities: ARMv8 NEON
[libx264 @ 0x12f8b6e00] profile Constrained Baseline, level 3.1
[libx264 @ 0x12f8b6e00] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=2 lookahead_threads=2 sliced_threads=1 slices=2 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=15 keyint_min=1 scenecut=40 intra_refresh=0 rc=abr mbtree=0 bitrate=3000 ratetol=1.0 qcomp=0.60 qpmin=25 qpmax=51 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://XXX.XX.XXX.XX/myapp/jackal':
    Stream #0:0: Video: h264 (libx264), yuv420p, 720x1280, q=25-51, 3000 kb/s, 23 tbc
    Stream #0:1: Audio: mp3 (libmp3lame), 44100 Hz, mono, s16p, 64 kb/s
[flv @ 0x12f8b5400] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
[flv @ 0x12f8b5400] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
[libx264 @ 0x12f8b6e00] Provided packet is too small, needs to be 33468
Failed to encode! 
Audio_pts:4154432515 pts_time:4.15443e+06 dts:4154432515 dts_time:4.15443e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:43 pts_time:0.043 dts:43 dts_time:0.043 duration:0 duration_time:0 stream_index:0
Audio_pts:4154433667 pts_time:4.15443e+06 dts:4154433667 dts_time:4.15443e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154434854 pts_time:4.15443e+06 dts:4154434854 dts_time:4.15443e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:86 pts_time:0.086 dts:86 dts_time:0.086 duration:0 duration_time:0 stream_index:0
Audio_pts:4154435996 pts_time:4.15444e+06 dts:4154435996 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154437138 pts_time:4.15444e+06 dts:4154437138 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:129 pts_time:0.129 dts:129 dts_time:0.129 duration:0 duration_time:0 stream_index:0
Audio_pts:4154438281 pts_time:4.15444e+06 dts:4154438281 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:172 pts_time:0.172 dts:172 dts_time:0.172 duration:0 duration_time:0 stream_index:0
Audio_pts:4154439467 pts_time:4.15444e+06 dts:4154439467 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:215 pts_time:0.215 dts:215 dts_time:0.215 duration:0 duration_time:0 stream_index:0
Audio_pts:4154440609 pts_time:4.15444e+06 dts:4154440609 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154441752 pts_time:4.15444e+06 dts:4154441752 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:258 pts_time:0.258 dts:258 dts_time:0.258 duration:0 duration_time:0 stream_index:0
Audio_pts:4154442884 pts_time:4.15444e+06 dts:4154442884 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154444071 pts_time:4.15444e+06 dts:4154444071 dts_time:4.15444e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:301 pts_time:0.301 dts:301 dts_time:0.301 duration:0 duration_time:0 stream_index:0
Audio_pts:4154445213 pts_time:4.15445e+06 dts:4154445213 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154446355 pts_time:4.15445e+06 dts:4154446355 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:344 pts_time:0.344 dts:344 dts_time:0.344 duration:0 duration_time:0 stream_index:0
Audio_pts:4154447498 pts_time:4.15445e+06 dts:4154447498 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:387 pts_time:0.387 dts:387 dts_time:0.387 duration:0 duration_time:0 stream_index:0
Audio_pts:4154448640 pts_time:4.15445e+06 dts:4154448640 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154449826 pts_time:4.15445e+06 dts:4154449826 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:430 pts_time:0.43 dts:430 dts_time:0.43 duration:0 duration_time:0 stream_index:0
Audio_pts:4154450969 pts_time:4.15445e+06 dts:4154450969 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154452101 pts_time:4.15445e+06 dts:4154452101 dts_time:4.15445e+06 duration:1152 duration_time:1.152 stream_index:1
...................
...................
...................
Video_pts:4343 pts_time:4.343 dts:4343 dts_time:4.343 duration:0 duration_time:0 stream_index:0
Audio_pts:4154622619 pts_time:4.15462e+06 dts:4154622619 dts_time:4.15462e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:4386 pts_time:4.386 dts:4386 dts_time:4.386 duration:0 duration_time:0 stream_index:0
Audio_pts:4154623761 pts_time:4.15462e+06 dts:4154623761 dts_time:4.15462e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154624903 pts_time:4.15462e+06 dts:4154624903 dts_time:4.15462e+06 duration:1152 duration_time:1.152 stream_index:1
Audio_pts:4154626090 pts_time:4.15463e+06 dts:4154626090 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:4429 pts_time:4.429 dts:4429 dts_time:4.429 duration:0 duration_time:0 stream_index:0
Audio_pts:4154627222 pts_time:4.15463e+06 dts:4154627222 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
Video_pts:4472 pts_time:4.472 dts:4472 dts_time:4.472 duration:0 duration_time:0 stream_index:0
Error while writing audio frame: Broken pipe
Audio_pts:4154628365 pts_time:4.15463e+06 dts:4154628365 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
Error while writing audio frame: Broken pipe
Audio_pts:4154629507 pts_time:4.15463e+06 dts:4154629507 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
Error while writing audio frame: Broken pipe
Audio_pts:4154630693 pts_time:4.15463e+06 dts:4154630693 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
Error while writing audio frame: Broken pipe
Audio_pts:4154631836 pts_time:4.15463e+06 dts:4154631836 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
Error while writing audio frame: Broken pipe
Audio_pts:4154632978 pts_time:4.15463e+06 dts:4154632978 dts_time:4.15463e+06 duration:1152 duration_time:1.152 stream_index:1
.......................
.......................
.......................
2016-03-09 16:57:49.345 PoliceCamPlayer[1004:193465] stopRecord!!!
Video_pts:7783 pts_time:7.783 dts:7783 dts_time:7.783 duration:0 duration_time:0 stream_index:0
[flv @ 0x12f8b5400] Failed to update header with correct duration.
[flv @ 0x12f8b5400] Failed to update header with correct filesize.
[libx264 @ 0x12f8b6e00] frame I:28    Avg QP:25.36  size: 24181
[libx264 @ 0x12f8b6e00] frame P:154   Avg QP:25.34  size:  6603
[libx264 @ 0x12f8b6e00] mb I  I16..4: 80.9%  0.0% 19.1%
[libx264 @ 0x12f8b6e00] mb P  I16..4:  5.9%  0.0%  0.2%  P16..4: 28.2%  4.4%  1.0%  0.0%  0.0%    skip:60.2%
[libx264 @ 0x12f8b6e00] final ratefactor: 16.70
[libx264 @ 0x12f8b6e00] coded y,uvDC,uvAC intra: 35.8% 9.3% 0.4% inter: 8.8% 1.6% 0.0%
[libx264 @ 0x12f8b6e00] i16 v,h,dc,p: 28% 26% 26% 21%
[libx264 @ 0x12f8b6e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 26% 25%  3%  7%  4%  5%  3% 13%
[libx264 @ 0x12f8b6e00] i8c dc,h,v,p: 85%  9%  5%  0%
[libx264 @ 0x12f8b6e00] kb/s:1712.63


    


  • FFmpeg make : *** [libavdevice/avfoundation.o] Error 1

    29 décembre 2014, par Althen Lim Zi Xuan

    I’m very new (1 weeks ago) to Mac OS environment and I have to create a iPhone apps using FFmpeg (I’m new to this, too !). This is what I’ve done to import FFmpeg library.

    First, here’s the environment :

    OS: Mac OS X 10.7.5
    
Xcode: 4.5
    
FFmpeg: 2.5 (Latest update of 04/12/2014)

    So I download from FFmpeg.org using command :

    git clone git://source.ffmpeg.org/ffmpeg.git ~/ffmpeg

    and create the folder in it :

    cd ffmpeg
    
mkdir i386
    
mkdir armv7
    
mkdir armv7s
    
mkdir -p universal/lib

    I download the gas-preprocessor.pl from yuvi and copied into /usr/bin and /usr/local/bin with READ/WRITE access for all.

    However, I do encounter the error as title mentions during the making process of armv7 and armv7s which appear like this :

    make: *** [libavdevice/avfoundation.o] Error 1

    Can anyone teach me how to deal with it ? Here’s my configuration.

    For i386 : (Compilation success and I saw files and folder in i386 folder)

    ./configure --cc="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc" --as="/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2" --sysroot="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk" --target-os=darwin --arch=i386 --cpu=i386 --extra-cflags="-arch i386" --extra-ldflags="-arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk"--prefix=compiled/i386 --enable-cross-compile --enable-nonfree --enable-gpl --disable-armv5te --disable-swscale-alpha --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-asm --disable-debug

    For armv7 :

    ./configure --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as="/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2" --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk --target-os=darwin --arch=arm --cpu=cortex-a8 --extra-cflags="-arch armv7" --extra-ldflags="-arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk" --prefix=compiled/armv7 --enable-cross-compile --enable-nonfree --enable-gpl --disable-armv5te --disable-swscale-alpha --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-asm --disable-debug

    and for armv7s :

    ./configure --prefix=armv7s --as="/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2" --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --enable-avresample --enable-cross-compile --sysroot="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk" --target-os=darwin --cc="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc" --extra-cflags="-arch armv7s -mfpu=neon -miphoneos-version-min=6.0" --extra-ldflags="-arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk -miphoneos-version-min=6.0" --arch=arm --cpu=cortex-a9 --enable-pic

    If any necessary information needed please do inform me and I will upload it A.S.A.P. Any help, comment, guideline are highly appreciated. Thanks !

    Updated :
    This is the error I received during the making process. I have no idea but hope that it helps in configuring out problem :

    CC  libavdevice/alldevices.o
    
CC  libavdevice/avdevice.o
    
CC  libavdevice/avfoundation.o
    
libavdevice/avfoundation.m:44: error: initializer element is not constant
    
libavdevice/avfoundation.m:44: error: (near initialization for ‘avf_time_base_q.den’)
    
libavdevice/avfoundation.m:74:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m: In function ‘add_video_device’:
    
libavdevice/avfoundation.m:300: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:355: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:364: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘add_audio_device’:
    
libavdevice/avfoundation.m:407: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘get_video_config’:
    
libavdevice/avfoundation.m:432: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:442: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘get_audio_config’:
    
libavdevice/avfoundation.m:470: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:480: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘avf_read_header’:
    
libavdevice/avfoundation.m:534: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:539:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m:546: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:554:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m:575: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:596:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m:619:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m: In function ‘avf_read_packet’:
    
libavdevice/avfoundation.m:724: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:739: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:776: warning: ISO C90 forbids mixed declarations and code
    
make: *** [libavdevice/avfoundation.o] Error 1

Navigation