H265视频编码转H264编码

阳光穿透心脏的1/2处 2024-05-05 07:54 42阅读 0赞

/**
         * 完成编码转换
         *
         * @param inputFile
         * @param outputFile
         * @return
         * @throws Exception
         */
        public static void convert(String inputFile, String outputFile) throws Exception {
            FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(inputFile);
            Frame captured_frame;
            FFmpegFrameRecorder recorder = null;
            try {
                grabber.start();
                recorder = new FFmpegFrameRecorder(outputFile, grabber.getImageWidth(), grabber.getImageHeight());
                recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
                recorder.setVideoCodecName("libx264");
                recorder.setFormat("mp4");
                recorder.setVideoQuality(35);
                recorder.setFrameRate(grabber.getFrameRate());
                recorder.setSampleRate(grabber.getSampleRate());
                recorder.setVideoBitrate(grabber.getVideoBitrate());
                recorder.setAspectRatio(grabber.getAspectRatio());
                recorder.setAudioBitrate(grabber.getAudioBitrate());
                recorder.setAudioOptions(grabber.getAudioOptions());
                recorder.start();
                while (true) {
                    captured_frame = grabber.grabFrame();
                    if (captured_frame == null) {
                        System.out.println("转码完成");
                        break;
                    }
                    recorder.record(captured_frame);
                }
            } catch (FrameRecorder.Exception e) {
                e.printStackTrace();
            } finally {
                if (recorder != null) {
                    try {
                        recorder.stop();
                        recorder.close();
                    } catch (Exception e) {
                        System.out.println("recorder.close异常" + e);
                    }
                }
                try {
                    grabber.close();
                } catch (FrameGrabber.Exception e) {
                    System.out.println("frameGrabber.close异常" + e);
                }
            }
        }