{"id":6582,"date":"2025-09-29T11:25:48","date_gmt":"2025-09-29T03:25:48","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=6582"},"modified":"2025-09-29T11:25:48","modified_gmt":"2025-09-29T03:25:48","slug":"ffmpeg%e4%bb%8e%e6%94%b6%e5%88%b0%e4%b8%80%e4%b8%aa%e8%a7%86%e9%a2%91%e5%8c%85%e5%88%b0%e8%a7%a3%e7%a0%81%e5%87%ba%e6%9d%a5%e6%95%b4%e4%b8%aa%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/ffmpeg\/ffmpeg%e4%bb%8e%e6%94%b6%e5%88%b0%e4%b8%80%e4%b8%aa%e8%a7%86%e9%a2%91%e5%8c%85%e5%88%b0%e8%a7%a3%e7%a0%81%e5%87%ba%e6%9d%a5%e6%95%b4%e4%b8%aa%e6%b5%81%e7%a8%8b\/","title":{"rendered":"ffmpeg\u4ece\u6536\u5230\u4e00\u4e2a\u89c6\u9891\u5305\u5230\u89e3\u7801\u51fa\u6765\u6574\u4e2a\u6d41\u7a0b"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u9636\u6bb5\uff1a\u521d\u59cb\u5316\u548c\u6253\u5f00\u6d41<\/h3>\n\n\n\n<p>\u8fd9\u4e00\u6b65\u901a\u5e38\u5728\u64ad\u653e\u5668\u6216\u5904\u7406\u7a0b\u5e8f\u7684\u521d\u59cb\u5316\u9636\u6bb5\u5b8c\u6210\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6253\u5f00\u8f93\u5165\u6587\u4ef6\uff08Open Input\uff09<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u00a0<code>avformat_open_input(&amp;fmt_ctx, filename, NULL, NULL)<\/code>\u00a0\u6253\u5f00\u4e00\u4e2a\u5a92\u4f53\u6587\u4ef6\uff08\u5982 MP4\u3001MKV\uff09\u6216\u7f51\u7edc\u6d41\u3002\u8fd9\u4e2a\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u00a0<code>AVFormatContext<\/code>\u00a0\u7ed3\u6784\u4f53\uff0c\u5b83\u662f\u6574\u4e2a\u5a92\u4f53\u6587\u4ef6\u7684\u5bb9\u5668\uff0c\u5305\u542b\u4e86\u6587\u4ef6\u7684\u6240\u6709\u4fe1\u606f\uff08\u6d41\u4fe1\u606f\u3001\u5143\u6570\u636e\u7b49\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u67e5\u627e\u6d41\u4fe1\u606f\uff08Find Stream Info\uff09<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u00a0<code>avformat_find_stream_info(fmt_ctx, NULL)<\/code>\u00a0\u6765\u8bfb\u53d6\u6587\u4ef6\u7684\u4e00\u90e8\u5206\u6570\u636e\u5305\u5e76\u5206\u6790\u51fa\u6587\u4ef6\u4e2d\u5305\u542b\u54ea\u4e9b\u6d41\uff08Stream\uff09\uff0c\u6bd4\u5982\u89c6\u9891\u6d41\u3001\u97f3\u9891\u6d41\u3001\u5b57\u5e55\u6d41\u3002\u5b83\u4f1a\u586b\u5145\u00a0<code>AVFormatContext<\/code>\u00a0\u4e2d\u7684\u00a0<code>streams<\/code>\u00a0\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u67e5\u627e\u5e76\u6253\u5f00\u89c6\u9891\u89e3\u7801\u5668\uff08Find and Open Codec\uff09<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u904d\u5386\u00a0<code>fmt_ctx->streams<\/code>\uff0c\u627e\u5230\u7c7b\u578b\uff08<code>codecpar->codec_type<\/code>\uff09\u4e3a\u00a0<code>AVMEDIA_TYPE_VIDEO<\/code>\u00a0\u7684\u6d41\uff08<code>AVStream<\/code>\uff09\u3002\u901a\u5e38\u6211\u4eec\u9009\u62e9\u7b2c\u4e00\u4e2a\u89c6\u9891\u6d41\u3002<\/li>\n\n\n\n<li>\u4ece\u627e\u5230\u7684\u00a0<code>AVStream<\/code>\u00a0\u7684\u00a0<code>codecpar<\/code>\uff08\u7f16\u89e3\u7801\u5668\u53c2\u6570\uff09\u4e2d\u83b7\u53d6\u6d41\u7684\u7f16\u7801\u683c\u5f0f\uff08\u5982 H.264\u3001HEVC\u3001VP9\uff09\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528\u00a0<code>avcodec_find_decoder(stream->codecpar->codec_id)<\/code>\u00a0\u6839\u636e\u7f16\u7801\u683c\u5f0f\u67e5\u627e\u5bf9\u5e94\u7684\u89e3\u7801\u5668\uff08<code>AVCodec<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u521b\u5efa\u4e00\u4e2a\u89e3\u7801\u5668\u4e0a\u4e0b\u6587\uff08<code>AVCodecContext *codec_ctx = avcodec_alloc_context3(codec);<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528\u00a0<code>avcodec_parameters_to_context(codec_ctx, stream->codecpar)<\/code>\u00a0\u5c06\u6d41\u7684\u53c2\u6570\u590d\u5236\u5230\u89e3\u7801\u5668\u4e0a\u4e0b\u6587\u4e2d\u3002<\/li>\n\n\n\n<li>\u6700\u540e\u4f7f\u7528\u00a0<code>avcodec_open2(codec_ctx, codec, NULL)<\/code>\u00a0\u6253\u5f00\u89e3\u7801\u5668\u3002\u73b0\u5728\u89e3\u7801\u5668\u5df2\u7ecf\u521d\u59cb\u5316\u5b8c\u6bd5\uff0c\u51c6\u5907\u597d\u63a5\u6536\u00a0<code>AVPacket<\/code>\u00a0\u4e86\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e8c\u9636\u6bb5\uff1a\u5faa\u73af\u8bfb\u53d6\u4e0e\u89e3\u7801<\/h3>\n\n\n\n<p>\u8fd9\u662f\u4e3b\u5faa\u73af\u8fc7\u7a0b\uff0c\u4e0d\u65ad\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u5305\uff0c\u9001\u5165\u89e3\u7801\u5668\uff0c\u5e76\u53d6\u51fa\u5e27\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8bfb\u53d6\u6570\u636e\u5305\uff08Read Packet\uff09<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d\uff0c\u8c03\u7528\u00a0<code>av_read_frame(fmt_ctx, &amp;pkt)<\/code>\u3002\u8fd9\u4e2a\u51fd\u6570\u4f1a\u4ece\u00a0<code>AVFormatContext<\/code>\u00a0\u4e2d\u8bfb\u53d6\u4e0b\u4e00\u4e2a\u6570\u636e\u5305\uff08\u53ef\u80fd\u662f\u89c6\u9891\u3001\u97f3\u9891\u6216\u5176\u4ed6\uff09\u3002<\/li>\n\n\n\n<li>\u5b83\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u00a0<code>AVPacket<\/code>\uff0c\u8fd9\u662f\u4e00\u4e2a<strong>\u538b\u7f29\u7684\u3001\u7f16\u7801\u540e\u7684<\/strong>\u6570\u636e\u5355\u5143\u3002\u6ce8\u610f\uff1a\u5bf9\u4e8e\u89c6\u9891\u6765\u8bf4\uff0c\u4e00\u4e2a\u00a0<code>AVPacket<\/code>\u00a0\u53ef\u80fd\u5305\u542b\u4e00\u5e27\u5b8c\u6574\u7684\u6570\u636e\uff08\u5982\u4e00\u4e2a\u5b8c\u6574\u7684 H.264 I\u5e27\uff09\uff0c\u4e5f\u53ef\u80fd\u5305\u542b\u4e00\u90e8\u5206\u5e27\u6570\u636e\uff08\u5982\u4e00\u4e2a H.264 P\u5e27\u7247\u6bb5\uff09\uff0c\u8fd9\u53d6\u51b3\u4e8e\u7f16\u7801\u683c\u5f0f\u548c\u5c01\u88c5\u683c\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5224\u65ad\u6d41\u7c7b\u578b\uff08Check Stream Index\uff09<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u68c0\u67e5\u8bfb\u53d6\u5230\u7684\u00a0<code>pkt.stream_index<\/code>\u00a0\u662f\u5426\u7b49\u4e8e\u6211\u4eec\u4e4b\u524d\u627e\u5230\u7684<strong>\u89c6\u9891\u6d41\u7d22\u5f15<\/strong>\uff08video_stream_index\uff09\u3002\u5982\u679c\u4e0d\u7b49\uff0c\u8bf4\u660e\u8fd9\u4e2a\u5305\u662f\u97f3\u9891\u6216\u5176\u4ed6\u6570\u636e\uff0c\u53ef\u4ee5\u8df3\u8fc7\u6216\u9001\u7ed9\u76f8\u5e94\u7684\u97f3\u9891\u89e3\u7801\u5668\u5904\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u53d1\u9001\u6570\u636e\u5305\u5230\u89e3\u7801\u5668\uff08Send Packet\uff09<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u89c6\u9891\u5305\uff0c\u8c03\u7528\u00a0<code>avcodec_send_packet(codec_ctx, &amp;pkt)<\/code>\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u51fd\u6570\u5c06\u00a0<code>AVPacket<\/code>\uff08\u538b\u7f29\u6570\u636e\uff09\u9001\u5165\u89e3\u7801\u5668\u7684\u5185\u90e8\u7f13\u51b2\u533a\u3002\u89e3\u7801\u5668\u5e76\u4e0d\u4f1a\u7acb\u5373\u89e3\u7801\u5b83\uff0c\u800c\u662f\u5c06\u5176\u653e\u5165\u4e00\u4e2a\u961f\u5217\u4e2d\u7b49\u5f85\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong>\u91cd\u8981<\/strong>\uff1a\u9001\u5165\u4e00\u4e2a\u00a0<code>AVPacket<\/code>\u00a0\u540e\uff0c\u4e0d\u4e00\u5b9a\u5c31\u80fd\u7acb\u523b\u53d6\u51fa\u4e00\u4e2a\u00a0<code>AVFrame<\/code>\u3002\u89e3\u7801\u5668\u53ef\u80fd\u4f1a\u7f13\u5b58\u591a\u4e2a\u5305\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u6709 B \u5e27\u7684\u6d41\u65f6\u3002<\/li>\n\n\n\n<li>\u53d1\u9001\u5b8c\u6210\u540e\uff0c\u5e94\u7acb\u5373\u8c03\u7528\u00a0<code>av_packet_unref(&amp;pkt)<\/code>\u00a0\u6765\u91ca\u653e\u6570\u636e\u5305\u5360\u7528\u7684\u8d44\u6e90\uff0c\u56e0\u4e3a\u6570\u636e\u5df2\u88ab\u89e3\u7801\u5668\u7f13\u5b58\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4ece\u89e3\u7801\u5668\u63a5\u6536\u5e27\uff08Receive Frame\uff09<\/strong>:<ul><li><strong><code>AVERROR(EAGAIN)<\/code><\/strong>: \u8868\u793a\u89e3\u7801\u5668\u9700\u8981\u66f4\u591a\u7684\u8f93\u5165\u6570\u636e\uff08\u5373\u66f4\u591a\u7684\u00a0<code>AVPacket<\/code>\uff09\u624d\u80fd\u8f93\u51fa\u4e00\u5e27\u3002\u6b64\u65f6\u4f60\u5e94\u8be5\u56de\u5230\u7b2c 1 \u6b65\uff0c\u7ee7\u7eed\u53d1\u9001\u65b0\u7684\u00a0<code>AVPacket<\/code>\u3002<\/li><li><strong><code>AVERROR_EOF<\/code><\/strong>: \u8868\u793a\u89e3\u7801\u5668\u5df2\u5237\u65b0\uff08flush\uff09\uff0c\u6240\u6709\u5e27\u90fd\u5df2\u8f93\u51fa\u3002<\/li><li><strong><code>0<\/code><\/strong>:\u00a0<strong>\u6210\u529f\uff01<\/strong>\u00a0\u6b64\u65f6\u00a0<code>frame<\/code>\u00a0\u53d8\u91cf\u4e2d\u5b58\u50a8\u4e86\u4e00\u5e27\u5b8c\u6574\u7684\u3001\u89e3\u7801\u540e\u7684\u56fe\u50cf\u6570\u636e\u3002\u4f60\u53ef\u4ee5\u5904\u7406\u8fd9\u4e2a\u5e27\u4e86\uff08\u5982\u663e\u793a\u3001\u4fdd\u5b58\u4e3a\u56fe\u7247\u3001\u8fdb\u884c\u6ee4\u955c\u5904\u7406\u7b49\uff09\u3002<\/li><li>\u5176\u4ed6\u8d1f\u503c\uff1a\u8868\u793a\u53d1\u751f\u4e86\u9519\u8bef\u3002<\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d\u8c03\u7528\u00a0<code>avcodec_receive_frame(codec_ctx, frame)<\/code>\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u51fd\u6570\u5c1d\u8bd5\u4ece\u89e3\u7801\u5668\u7684\u5185\u90e8\u7f13\u51b2\u533a\u4e2d\u83b7\u53d6\u4e00\u4e2a\u5df2\u7ecf\u89e3\u7801\u5b8c\u6210\u7684\u00a0<code>AVFrame<\/code>\u3002<strong>AVFrame \u662f\u89e3\u7801\u540e\u7684\u3001\u539f\u59cb\u7684\uff08\u5982 YUV420P\u3001RGB\uff09\u89c6\u9891\u5e27\u6570\u636e<\/strong>\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u9700\u8981\u4ed4\u7ec6\u5904\u7406\uff1a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5904\u7406\u89e3\u7801\u51fa\u7684\u5e27\uff08Process Frame\uff09<\/strong>:<ul><li><code>data[]<\/code>: \u4e00\u4e2a\u6307\u9488\u6570\u7ec4\uff0c\u6307\u5411\u5b9e\u9645\u7684\u56fe\u50cf\u5e73\u9762\u6570\u636e\uff08\u5982 Y\u3001U\u3001V \u4e09\u4e2a\u5e73\u9762\uff09\u3002<\/li><li><code>linesize[]<\/code>: \u4e00\u4e2a\u6570\u7ec4\uff0c\u8868\u793a\u6bcf\u4e2a\u5e73\u9762\u4e00\u884c\u6570\u636e\u7684\u5927\u5c0f\uff08\u5b57\u8282\u6570\uff09\u3002\u6ce8\u610f\u7531\u4e8e\u5185\u5b58\u5bf9\u9f50\uff0c\u8fd9\u4e2a\u503c\u53ef\u80fd\u5927\u4e8e\u56fe\u50cf\u7684\u5bbd\u5ea6\u3002<\/li><li><code>width<\/code>,\u00a0<code>height<\/code>: \u56fe\u50cf\u7684\u5bbd\u9ad8\u3002<\/li><li><code>format<\/code>: \u50cf\u7d20\u683c\u5f0f\uff08\u5982\u00a0<code>AV_PIX_FMT_YUV420P<\/code>\uff09\u3002<\/li><li><code>pts<\/code>: \u663e\u793a\u65f6\u95f4\u6233\uff08Presentation Timestamp\uff09\uff0c\u544a\u8bc9\u4f60\u8fd9\u4e00\u5e27\u5e94\u8be5\u5728\u4ec0\u4e48\u65f6\u95f4\u663e\u793a\u3002<\/li><\/ul>\n<ul class=\"wp-block-list\">\n<li>\u73b0\u5728\u4f60\u62e5\u6709\u4e86\u4e00\u4e2a\u00a0<code>AVFrame<\/code>\uff0c\u5b83\u7684\u6210\u5458\u53d8\u91cf\u5305\u542b\u4e86\u4e30\u5bcc\u7684\u5e27\u4fe1\u606f\uff1a<\/li>\n\n\n\n<li>\u4f60\u53ef\u4ee5\u8bbf\u95ee\u8fd9\u4e9b\u6570\u636e\u6765\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e09\u9636\u6bb5\uff1a\u5237\u65b0\u89e3\u7801\u5668\uff08Flushing\uff09<\/h3>\n\n\n\n<p>\u5728\u6587\u4ef6\u8bfb\u53d6\u5b8c\u6bd5\uff08<code>av_read_frame<\/code>&nbsp;\u8fd4\u56de AVERROR_EOF\uff09\u540e\uff0c\u89e3\u7801\u5668\u7684\u5185\u90e8\u7f13\u51b2\u533a\u91cc\u53ef\u80fd\u8fd8\u6709\u7f13\u5b58\u7684\u51e0\u5e27\u6570\u636e\uff08\u7531\u4e8e\u5ef6\u8fdf\u89e3\u7801\uff09\u3002\u4f60\u9700\u8981\u201c\u5237\u65b0\u201d\u89e3\u7801\u5668\u6765\u53d6\u51fa\u8fd9\u4e9b\u5269\u4f59\u7684\u5e27\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u53d1\u9001\u4e00\u4e2a\u00a0<code>NULL<\/code>\u00a0\u5305<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u8c03\u7528\u00a0<code>avcodec_send_packet(codec_ctx, NULL)<\/code>\u3002\u8fd9\u4e2a\u00a0<code>NULL<\/code>\u00a0\u5305\u662f\u4e00\u4e2a\u4fe1\u53f7\uff0c\u544a\u8bc9\u89e3\u7801\u5668\u201c\u6ca1\u6709\u66f4\u591a\u7684\u8f93\u5165\u4e86\u201d\uff0c\u8bf7\u5f00\u59cb\u5904\u7406\u5e76\u8f93\u51fa\u6240\u6709\u7f13\u5b58\u7684\u5e27\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7ee7\u7eed\u63a5\u6536\u5e27<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u50cf\u6b63\u5e38\u5faa\u73af\u4e00\u6837\uff0c\u7ee7\u7eed\u53cd\u590d\u8c03\u7528\u00a0<code>avcodec_receive_frame(codec_ctx, frame)<\/code>\u3002<\/li>\n\n\n\n<li>\u4f60\u4f1a\u9646\u7eed\u63a5\u6536\u5230\u6700\u540e\u51e0\u5e27\uff0c\u76f4\u5230\u51fd\u6570\u8fd4\u56de\u00a0<code>AVERROR_EOF<\/code>\uff0c\u8fd9\u610f\u5473\u7740\u89e3\u7801\u5668\u771f\u7684\u7a7a\u4e86\uff0c\u6d41\u7a0b\u7ed3\u675f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3\u4e0e\u5173\u952e\u70b9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>AVPacket<\/code>\u00a0vs\u00a0<code>AVFrame<\/code><\/strong>:\u00a0<strong>Packet \u662f\u538b\u7f29\u7684\u6570\u636e\uff0cFrame \u662f\u539f\u59cb\u7684\u6570\u636e<\/strong>\u3002\u8fd9\u662f\u6700\u91cd\u8981\u7684\u6982\u5ff5\u3002<\/li>\n\n\n\n<li><strong>\u53d1\u9001\/\u63a5\u6536 API<\/strong>:\u00a0<code>avcodec_send_packet()<\/code>\u00a0\u548c\u00a0<code>avcodec_receive_frame()<\/code>\u00a0\u662f\u73b0\u4ee3\u7684\u7f16\u89e3\u7801 API\uff08\u81ea FFmpeg 3.1 \u8d77\uff09\u3002\u5b83\u66ff\u4ee3\u4e86\u65e7\u7248\u00a0<code>avcodec_decode_video2()<\/code>\u00a0\u51fd\u6570\uff0c\u91c7\u7528\u4e86\u66f4\u6e05\u6670\u7684\u201c\u53d1\u9001-\u63a5\u6536\u201d\u6a21\u5f0f\u3002<\/li>\n\n\n\n<li><strong>\u5f02\u6b65\u6027<\/strong>: \u53d1\u9001\u4e00\u4e2a Packet \u4e0d\u4e00\u5b9a\u80fd\u63a5\u6536\u5230\u4e00\u4e2a Frame\u3002\u53ef\u80fd\u9700\u8981\u53d1\u9001\u591a\u4e2a Packet \u624d\u80fd\u6536\u5230\u4e00\u4e2a Frame\uff0c\u6216\u8005\u53d1\u9001\u4e00\u4e2a Packet \u540e\u80fd\u6536\u5230\u591a\u4e2a Frame\uff08\u5f88\u5c11\u89c1\uff09\u3002\u63a5\u6536\u51fd\u6570\u8fd4\u56de\u00a0<code>EAGAIN<\/code>\u00a0\u662f\u6b63\u5e38\u6d41\u7a0b\u7684\u4e00\u90e8\u5206\u3002<\/li>\n\n\n\n<li><strong>\u5185\u5b58\u7ba1\u7406<\/strong>: \u52a1\u5fc5\u4f7f\u7528\u00a0<code>av_packet_unref()<\/code>\u00a0\u548c\u00a0<code>av_frame_unref()<\/code>\u00a0\u6765\u6b63\u786e\u7ba1\u7406 Packet \u548c Frame \u7684\u5185\u5b58\uff0c\u5426\u5219\u4f1a\u9020\u6210\u4e25\u91cd\u7684\u5185\u5b58\u6cc4\u6f0f\u3002<\/li>\n\n\n\n<li><strong>\u591a\u7ebf\u7a0b<\/strong>: \u89e3\u7801\u5668\u4e0a\u4e0b\u6587\u901a\u5e38\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u5982\u679c\u4f60\u8981\u89e3\u7801\u591a\u4e2a\u6d41\uff0c\u6700\u597d\u4e3a\u6bcf\u4e2a\u6d41\u521b\u5efa\u72ec\u7acb\u7684\u89e3\u7801\u5668\u4e0a\u4e0b\u6587\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e2a\u6d41\u7a0b\u662f\u4f7f\u7528 FFmpeg \u8fdb\u884c\u89c6\u9891\u5904\u7406\u7684\u57fa\u7840\uff0c\u65e0\u8bba\u662f\u7b80\u5355\u7684\u64ad\u653e\u5668\u3001\u8f6c\u7801\u5de5\u5177\u8fd8\u662f\u590d\u6742\u7684\u89c6\u9891\u5206\u6790\u5e94\u7528\uff0c\u90fd\u5efa\u7acb\u5728\u8fd9\u4e2a\u6838\u5fc3\u6d41\u7a0b\u4e4b\u4e0a\u3002<\/p>\n","raw":"","protected":false},"excerpt":{"rendered":"<p>\u7b2c\u4e00\u9636\u6bb5\uff1a\u521d\u59cb\u5316\u548c\u6253\u5f00\u6d41 \u8fd9\u4e00\u6b65\u901a\u5e38\u5728\u64ad\u653e\u5668\u6216\u5904\u7406\u7a0b\u5e8f\u7684\u521d\u59cb\u5316\u9636\u6bb5\u5b8c\u6210\u3002 \u7b2c\u4e8c\u9636\u6bb5\uff1a\u5faa\u73af\u8bfb\u53d6\u4e0e\u89e3\u7801 \u8fd9\u662f\u4e3b\u5faa\u73af\u8fc7\u7a0b\uff0c\u4e0d\u65ad\u4ece\u6587\u4ef6\u4e2d\u8bfb &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[47],"tags":[],"class_list":["post-6582","post","type-post","status-publish","format-standard","hentry","category-ffmpeg"],"post_thumbnail_image":"","content_first_image":null,"post_medium_image_300":"","post_thumbnail_image_624":"","post_frist_image":null,"post_medium_image":"","post_large_image":"","post_full_image":"","post_all_images":[],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"ffmpeg","post_date":"2025-09-29","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":184,"next_post_id":6637,"next_post_title":"\u8fdc\u7a0b\u83b7\u53d6\u670d\u52a1\u5668\u4e0a\u7684\u89c6\u9891\u6587\u4ef6\u7684\u622a\u56fe\u6216\u751f\u6210\u7f29\u7565\u56fe","previous_post_id":null,"previous_post_title":null,"_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/6582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=6582"}],"version-history":[{"count":1,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/6582\/revisions"}],"predecessor-version":[{"id":6583,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/6582\/revisions\/6583"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=6582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=6582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=6582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}