int ff_decklink_list_devices(AVFormatContext *avctx)
{
    IDeckLink *dl = NULL;
    IDeckLinkIterator *iter = CreateDeckLinkIteratorInstance();
    if (!iter) {
        av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
        return AVERROR(EIO);
    }
    av_log(avctx, AV_LOG_INFO, "Blackmagic DeckLink devices:\n");
    while (iter->Next(&dl) == S_OK) {
        const char *displayName;
        ff_decklink_get_display_name(dl, &displayName);
        av_log(avctx, AV_LOG_INFO, "\t'%s'\n", displayName);
        av_free((void *) displayName);
        dl->Release();
    }
    iter->Release();
    return 0;
}
Ejemplo n.º 2
0
int ff_decklink_init_device(AVFormatContext *avctx, const char* name)
{
    struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
    struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
    IDeckLink *dl = NULL;
    IDeckLinkIterator *iter = CreateDeckLinkIteratorInstance();
    if (!iter) {
        av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
        return AVERROR_EXTERNAL;
    }

    while (iter->Next(&dl) == S_OK) {
        const char *displayName;
        ff_decklink_get_display_name(dl, &displayName);
        if (!strcmp(name, displayName)) {
            av_free((void *)displayName);
            ctx->dl = dl;
            break;
        }
        av_free((void *)displayName);
        dl->Release();
    }
    iter->Release();
    if (!ctx->dl)
        return AVERROR(ENXIO);

    if (ctx->dl->QueryInterface(IID_IDeckLinkConfiguration, (void **)&ctx->cfg) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Could not get configuration interface for '%s'\n", name);
        ff_decklink_cleanup(avctx);
        return AVERROR_EXTERNAL;
    }

    if (ctx->dl->QueryInterface(IID_IDeckLinkAttributes, (void **)&ctx->attr) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Could not get attributes interface for '%s'\n", name);
        ff_decklink_cleanup(avctx);
        return AVERROR_EXTERNAL;
    }

    return 0;
}
Ejemplo n.º 3
0
av_cold int ff_decklink_read_header(AVFormatContext *avctx)
{
    struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
    struct decklink_ctx *ctx;
    IDeckLinkDisplayModeIterator *itermode;
    IDeckLinkIterator *iter;
    IDeckLink *dl = NULL;
    AVStream *st;
    HRESULT result;
    char fname[1024];
    char *tmp;
    int mode_num = 0;

    ctx = (struct decklink_ctx *) av_mallocz(sizeof(struct decklink_ctx));
    if (!ctx)
        return AVERROR(ENOMEM);
    ctx->list_devices = cctx->list_devices;
    ctx->list_formats = cctx->list_formats;
    ctx->preroll      = cctx->preroll;
    cctx->ctx = ctx;

    iter = CreateDeckLinkIteratorInstance();
    if (!iter) {
        av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
        return AVERROR(EIO);
    }

    /* List available devices. */
    if (ctx->list_devices) {
        ff_decklink_list_devices(avctx);
        return AVERROR_EXIT;
    }

    strcpy (fname, avctx->filename);
    tmp=strchr (fname, '@');
    if (tmp != NULL) {
        mode_num = atoi (tmp+1);
        *tmp = 0;
    }

    /* Open device. */
    while (iter->Next(&dl) == S_OK) {
        const char *displayName;
        ff_decklink_get_display_name(dl, &displayName);
        if (!strcmp(fname, displayName)) {
            av_free((void *) displayName);
            ctx->dl = dl;
            break;
        }
        av_free((void *) displayName);
        dl->Release();
    }
    iter->Release();
    if (!ctx->dl) {
        av_log(avctx, AV_LOG_ERROR, "Could not open '%s'\n", fname);
        return AVERROR(EIO);
    }

    /* Get input device. */
    if (ctx->dl->QueryInterface(IID_IDeckLinkInput, (void **) &ctx->dli) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
               avctx->filename);
        ctx->dl->Release();
        return AVERROR(EIO);
    }

    /* List supported formats. */
    if (ctx->list_formats) {
        ff_decklink_list_formats(avctx, DIRECTION_IN);
        ctx->dli->Release();
        ctx->dl->Release();
        return AVERROR_EXIT;
    }

    if (ctx->dli->GetDisplayModeIterator(&itermode) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
        ctx->dl->Release();
        return AVERROR(EIO);
    }

    if (mode_num > 0) {
        if (ff_decklink_set_format(avctx, DIRECTION_IN, mode_num) < 0) {
            av_log(avctx, AV_LOG_ERROR, "Could not set mode %d for %s\n", mode_num, fname);
            goto error;
        }
    }

    itermode->Release();

    /* Setup streams. */
    st = avformat_new_stream(avctx, NULL);
    if (!st) {
        av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
        goto error;
    }
    st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
    st->codec->codec_id    = AV_CODEC_ID_PCM_S16LE;
    st->codec->sample_rate = bmdAudioSampleRate48kHz;
    st->codec->channels    = 2;
    avpriv_set_pts_info(st, 64, 1, 1000000);  /* 64 bits pts in us */
    ctx->audio_st=st;

    st = avformat_new_stream(avctx, NULL);
    if (!st) {
        av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
        goto error;
    }
    st->codec->codec_type  = AVMEDIA_TYPE_VIDEO;
    st->codec->codec_id    = AV_CODEC_ID_RAWVIDEO;
    st->codec->width       = ctx->bmd_width;
    st->codec->height      = ctx->bmd_height;

    st->codec->pix_fmt     = AV_PIX_FMT_UYVY422;
    st->codec->time_base.den      = ctx->bmd_tb_den;
    st->codec->time_base.num      = ctx->bmd_tb_num;
    st->codec->bit_rate    = avpicture_get_size(st->codec->pix_fmt, ctx->bmd_width, ctx->bmd_height) * 1/av_q2d(st->codec->time_base) * 8;
    st->codec->codec_tag   = MKTAG('U', 'Y', 'V', 'Y');

    avpriv_set_pts_info(st, 64, 1, 1000000);  /* 64 bits pts in us */

    ctx->video_st=st;

    result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger, 2);

    if (result != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Cannot enable audio input\n");
        goto error;
    }

    result = ctx->dli->EnableVideoInput(ctx->bmd_mode, bmdFormat8BitYUV, bmdVideoInputFlagDefault);

    if (result != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Cannot enable video input\n");
        goto error;
    }

    avpacket_queue_init (avctx, &ctx->queue);

    if (decklink_start_input (avctx) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Cannot start input stream\n");
        goto error;
    }

    return 0;

error:

    ctx->dli->Release();
    ctx->dl->Release();

    return AVERROR(EIO);
}
Ejemplo n.º 4
0
av_cold int ff_decklink_write_header(AVFormatContext *avctx)
{
    struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
    struct decklink_ctx *ctx;
    IDeckLinkDisplayModeIterator *itermode;
    IDeckLinkIterator *iter;
    IDeckLink *dl = NULL;
    unsigned int n;

    ctx = (struct decklink_ctx *) av_mallocz(sizeof(struct decklink_ctx));
    if (!ctx)
        return AVERROR(ENOMEM);
    ctx->list_devices = cctx->list_devices;
    ctx->list_formats = cctx->list_formats;
    ctx->preroll      = cctx->preroll;
    cctx->ctx = ctx;

    iter = CreateDeckLinkIteratorInstance();
    if (!iter) {
        av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
        return AVERROR(EIO);
    }

    /* List available devices. */
    if (ctx->list_devices) {
        ff_decklink_list_devices(avctx);
        return AVERROR_EXIT;
    }

    /* Open device. */
    while (iter->Next(&dl) == S_OK) {
        const char *displayName;
        ff_decklink_get_display_name(dl, &displayName);
        if (!strcmp(avctx->filename, displayName)) {
            av_free((void *) displayName);
            ctx->dl = dl;
            break;
        }
        av_free((void *) displayName);
        dl->Release();
    }
    iter->Release();
    if (!ctx->dl) {
        av_log(avctx, AV_LOG_ERROR, "Could not open '%s'\n", avctx->filename);
        return AVERROR(EIO);
    }

    /* Get output device. */
    if (ctx->dl->QueryInterface(IID_IDeckLinkOutput, (void **) &ctx->dlo) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
               avctx->filename);
        ctx->dl->Release();
        return AVERROR(EIO);
    }

    /* List supported formats. */
    if (ctx->list_formats) {
        ff_decklink_list_formats(avctx);
        ctx->dlo->Release();
        ctx->dl->Release();
        return AVERROR_EXIT;
    }

    if (ctx->dlo->GetDisplayModeIterator(&itermode) != S_OK) {
        av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
        ctx->dl->Release();
        return AVERROR(EIO);
    }

    /* Setup streams. */
    for (n = 0; n < avctx->nb_streams; n++) {
        AVStream *st = avctx->streams[n];
        AVCodecContext *c = st->codec;
        if        (c->codec_type == AVMEDIA_TYPE_AUDIO) {
            if (decklink_setup_audio(avctx, st))
                goto error;
        } else if (c->codec_type == AVMEDIA_TYPE_VIDEO) {
            if (decklink_setup_video(avctx, st))
                goto error;
        } else {
            av_log(avctx, AV_LOG_ERROR, "Unsupported stream type.\n");
            goto error;
        }
    }
    itermode->Release();

    return 0;

error:

    ctx->dlo->Release();
    ctx->dl->Release();

    return AVERROR(EIO);
}
Ejemplo n.º 5
0
int ff_decklink_list_devices(AVFormatContext *avctx,
                             struct AVDeviceInfoList *device_list,
                             int show_inputs, int show_outputs)
{
    IDeckLink *dl = NULL;
    IDeckLinkIterator *iter = decklink_create_iterator(avctx);
    int ret = 0;

    if (!iter)
        return AVERROR(EIO);

    while (ret == 0 && iter->Next(&dl) == S_OK) {
        IDeckLinkOutput *output_config;
        IDeckLinkInput *input_config;
        const char *displayName;
        AVDeviceInfo *new_device = NULL;
        int add = 0;

        ff_decklink_get_display_name(dl, &displayName);

        if (show_outputs) {
            if (dl->QueryInterface(IID_IDeckLinkOutput, (void **)&output_config) == S_OK) {
                output_config->Release();
                add = 1;
            }
        }

        if (show_inputs) {
            if (dl->QueryInterface(IID_IDeckLinkInput, (void **)&input_config) == S_OK) {
                input_config->Release();
                add = 1;
            }
        }

        if (add == 1) {
            new_device = (AVDeviceInfo *) av_mallocz(sizeof(AVDeviceInfo));
            if (!new_device) {
                ret = AVERROR(ENOMEM);
                goto next;
            }

            new_device->device_name = av_strdup(displayName);
            new_device->device_description = av_strdup(displayName);

            if (!new_device->device_name ||
                !new_device->device_description ||
                av_dynarray_add_nofree(&device_list->devices, &device_list->nb_devices, new_device) < 0) {
                ret = AVERROR(ENOMEM);
                av_freep(&new_device->device_name);
                av_freep(&new_device->device_description);
                av_freep(&new_device);
                goto next;
            }
        }

    next:
        av_freep(&displayName);
        dl->Release();
    }
    iter->Release();
    return ret;
}