Function ff_decklink_list_formats

libavdevice/decklink_common.cpp:602–651

}

int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction)
{
    struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
    struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
    IDeckLinkDisplayModeIterator *itermode;
    IDeckLinkDisplayMode *mode;
    uint32_t format_code;
    HRESULT res;

    if (direction == DIRECTION_IN) {
        int ret;
        ret = decklink_select_input(avctx, bmdDeckLinkConfigAudioInputConnection);
        if (ret < 0)
            return ret;
        ret = decklink_select_input(avctx, bmdDeckLinkConfigVideoInputConnection);
        if (ret < 0)
            return ret;
        res = ctx->dli->GetDisplayModeIterator (&itermode);
    } else {
        res = ctx->dlo->GetDisplayModeIterator (&itermode);
    }

    if (res!= S_OK) {
            av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
            return AVERROR(EIO);
    }

    av_log(avctx, AV_LOG_INFO, "Supported formats for '%s':\n\tformat_code\tdescription",
               avctx->url);
    while (itermode->Next(&mode) == S_OK) {
        BMDTimeValue tb_num, tb_den;
        mode->GetFrameRate(&tb_num, &tb_den);
        format_code = av_bswap32(mode->GetDisplayMode());
        av_log(avctx, AV_LOG_INFO, "\n\t%.4s\t\t%ldx%ld at %d/%d fps",
                (char*) &format_code, mode->GetWidth(), mode->GetHeight(),
                (int) tb_den, (int) tb_num);
        switch (mode->GetFieldDominance()) {
        case bmdLowerFieldFirst:
        av_log(avctx, AV_LOG_INFO, " (interlaced, lower field first)"); break;
        case bmdUpperFieldFirst:
        av_log(avctx, AV_LOG_INFO, " (interlaced, upper field first)"); break;
        }
        mode->Release();
    }
    av_log(avctx, AV_LOG_INFO, "\n");

    itermode->Release();

    return 0;
}

void ff_decklink_cleanup(AVFormatContext *avctx)
{