接收一条音频（系统音频）彩信，点菜单键选择View slideshow，不能播放，提示是否导入vCard

Posted 2020-09-20 jhcelue

【前提条件】：
【操作步骤】：接收一条音频（系统音频。格式为ogg），点菜单键选择View slideshow
【測试结果】：不能播放，提示是否导入vCard
【预期结果】：能够播放

【备注】：附log  接收带图片、ogg格式音频 、视频幻灯片时也不能播放，提示是否导入vCard

经过分析和重复測试发现，该问题是因为电信运营商引起，该问题为移动发往本机联通网络，接收类型为application/oct-stream，但文件扩展名为ogg格式音频。因此导致该问题的产生，为了更全面的解决该模块下彩信接收功能这样的有电信运营商之间的不兼容产生的问题，同一时候測试不同类型附件包含视频/音频/图片/名片等，在同一时候接受中国移动电信运营商发来的附件（包含图片/视频/音频等）測试发现，仅仅有音频出现了类似的问题，因此在经过分析发如今获取接受附件的MIME是发现，vcard和ogg音频的contentType都是oct-stream。以下是数据截图：

因此我们在SlideshowModel类中的createFromMessageUri（）方法中加入对附件文件扩展名的推断（红色为改动加入的内容）；

 public static SlideshowModel createFromPduBody(Context context, PduBody pb) throws MmsException {
        SMILDocument document = SmilHelper.getDocument(pb);

        // Create root-layout model.
        SMILLayoutElement sle = document.getLayout();
        SMILRootLayoutElement srle = sle.getRootLayout();
        int w = srle.getWidth();
        int h = srle.getHeight();
        if ((w == 0) || (h == 0)) {
            w = LayoutManager.getInstance().getLayoutParameters().getWidth();
            h = LayoutManager.getInstance().getLayoutParameters().getHeight();
            srle.setWidth(w);
            srle.setHeight(h);
        }
        RegionModel rootLayout = new RegionModel(
                null, 0, 0, w, h);

        // Create region models.
        ArrayList<RegionModel> regions = new ArrayList<RegionModel>();
        NodeList nlRegions = sle.getRegions();
        int regionsNum = nlRegions.getLength();

        for (int i = 0; i < regionsNum; i++) {
            SMILRegionElement sre = (SMILRegionElement) nlRegions.item(i);
            RegionModel r = new RegionModel(sre.getId(), sre.getFit(),
                    sre.getLeft(), sre.getTop(), sre.getWidth(), sre.getHeight(),
                    sre.getBackgroundColor());
            regions.add(r);
        }
        LayoutModel layouts = new LayoutModel(rootLayout, regions);

        // Create slide models.
        SMILElement docBody = document.getBody();
        NodeList slideNodes = docBody.getChildNodes();
        int slidesNum = slideNodes.getLength();
        ArrayList<SlideModel> slides = new ArrayList<SlideModel>(slidesNum);
        int totalMessageSize = 0;
        boolean classCastFailed = false;

        for (int i = 0; i < slidesNum; i++) {
            // FIXME: This is NOT compatible with the SMILDocument which is
            // generated by some other mobile phones.
            SMILParElement par = (SMILParElement) slideNodes.item(i);

            // Create media models for each slide.
            NodeList mediaNodes = par.getChildNodes();
            int mediaNum = mediaNodes.getLength();
            ArrayList<MediaModel> mediaSet = new ArrayList<MediaModel>(mediaNum);

            for (int j = 0; j < mediaNum; j++) {
                SMILMediaElement sme = null;
                try {
                    sme = (SMILMediaElement) mediaNodes.item(j);
                } catch (ClassCastException e) {
                    classCastFailed = true;
                    Log.e(TAG, e.getMessage());
                    continue;
                }
                try {
                    MediaModel media = MediaModelFactory.getMediaModel(
                            context, sme, layouts, pb);

                    /*
                    * This is for slide duration value set.
                    * If mms server does not support slide duration.
                    */
                    if (!MmsConfig.getSlideDurationEnabled()) {
                        int mediadur = media.getDuration();
                        float dur = par.getDur();
                        if (dur == 0) {
                            mediadur = MmsConfig.getMinimumSlideElementDuration() * 1000;
                            media.setDuration(mediadur);
                        }

                        if ((int)mediadur / 1000 != dur) {
                            String tag = sme.getTagName();

                            if (ContentType.isVideoType(media.mContentType)
                              || tag.equals(SmilHelper.ELEMENT_TAG_VIDEO)
                              || ContentType.isAudioType(media.mContentType)
                              || tag.equals(SmilHelper.ELEMENT_TAG_AUDIO)) {
                                /*
                                * add 1 sec to release and close audio/video
                                * for guaranteeing the audio/video playing.
                                * because the mmsc does not support the slide duration.
                                */
                                par.setDur((float)mediadur / 1000 + 1);
                            } else {
                                /*
                                * If a slide has an image and an audio/video element
                                * and the audio/video element has longer duration than the image,
                                * The Image disappear before the slide play done. so have to match
                                * an image duration to the slide duration.
                                */
                                if ((int)mediadur / 1000 < dur) {
                                    media.setDuration((int)dur * 1000);
                                } else {
                                    if ((int)dur != 0) {
                                        media.setDuration((int)dur * 1000);
                                    } else {
                                        par.setDur((float)mediadur / 1000);
                                    }
                                }
                            }
                        }
                    }
                    SmilHelper.addMediaElementEventListeners(
                            (EventTarget) sme, media);
                    mediaSet.add(media);
                    totalMessageSize += media.getMediaSize();
                } catch (IOException e) {
                    Log.e(TAG, e.getMessage(), e);
                } catch (IllegalArgumentException e) {
                    Log.e(TAG, e.getMessage(), e);
                }
            }
            // Add vcard and vcalendar when receive from other products
            // without ref target in smil.
            int partsNum = pb.getPartsNum();
            for (int k = 0; k < partsNum; k++) {
                PduPart part = pb.getPart(k);
                String type=new String(part.getContentType());
                if (type.toLowerCase().equals(ContentType.TEXT_VCARD.toLowerCase())||(type.toLowerCase().equals(ContentType.OCT_STREAM)&&isVCF(new String(part.getContentLocation())))) {
                    MediaModel vMedia = new VcardModel(context, new String(
                            part.getContentType()), new String(part.getContentLocation()),
                            part.getDataUri());
                    mediaSet.add(vMedia);
                    totalMessageSize += vMedia.getMediaSize();
                    break;
                }else if (type.toLowerCase().equals(ContentType.TEXT_VCALENDAR.toLowerCase())) {
                    MediaModel tMedia = new UnsupportModel(context, new String(
                            part.getContentType()), new String(part.getContentLocation()),
                            part.getDataUri());
                    mediaSet.add(tMedia);
                    totalMessageSize += tMedia.getMediaSize();
                    break;
                }
            }
            float duration = par.getDur();
            if (duration < MIN_PAT_DURATION) {
                duration = MIN_PAT_DURATION;
            }
            SlideModel slide = new SlideModel((int) (duration * 1000), mediaSet);
            slide.setFill(par.getFill());
            SmilHelper.addParElementEventListeners((EventTarget) par, slide);
            slides.add(slide);
        }

        SlideshowModel slideshow = new SlideshowModel(layouts, slides, document, pb, context);
        slideshow.mTotalMessageSize = totalMessageSize;
        slideshow.registerModelChangedObserver(slideshow);
        return slideshow;
    }
    /**
     * @param fileName
     * @return
     */
    public static boolean isVCF(String fileName) {
        if (fileName.lastIndexOf(".") != -1 && fileName.lastIndexOf(".") != 0) {
            return( fileName.substring(fileName.lastIndexOf(".") + 1)).toLowerCase().equals("vcf");
        } else {
            return false;
        }
    }