* copy packet (remuxing In the example)*/
Pkt.duration = av_rescale_q(pkt.duration, out_stream->time_base, out_stream->time_base) Pkt.dts = av_rescale_q_rnd(pkt.dts, out_stream->time_base, out_stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX)) Pkt.pts = av_rescale_q((ptsInc++) * 2, time_base, out_stream->time_base) IsI = isIdrFrame1((uint8_t*)data, datalen) Static void VideoWrite(void* data, int datalen) Ret = avio_open(&ofmt_ctx->pb, out_filename, AVIO_FLAG_WRITE) Memcpy(out_codecpar->extradata, spspps_date, spspps_datalen) Īv_dump_format(ofmt_ctx, 0, out_filename, 1) Printf("could not av_malloc the video params extradata!\n") Out_codecpar->extradata = (uint8_t*)av_malloc(spspps_datalen + AV_INPUT_BUFFER_PADDING_SIZE) Out_codecpar->extradata_size = spspps_datalen In_codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) In_codecpar->codec_type != AVMEDIA_TYPE_VIDEO & If (in_codecpar->codec_type != AVMEDIA_TYPE_AUDIO & Stream_mapping = (int*)av_mallocz_array(stream_mapping_size, sizeof(*stream_mapping)) ĪVStream *in_stream = ifmt_ctx->streams ĪVCodecParameters *in_codecpar = in_stream->codecpar The demo code is pasted below: AVOutputFormat *ofmt = NULL ĪVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL
In format, RTMP can also play on the player normally, and it's okay to play on flv.js (my nginx is integrated with nginx-http-flv-module). demo program validationīecause the new version of FFmpeg and the old version of FFmpeg have some differences in the interface, so I take the latest version of FFmpeg to do, first use FFmpeg remuxing.c routine to test, mainly used to read the IPC rtsp stream stored into FLV or released into rtmp, after testing, the FLV format stored is correct. My requirement is to read a frame of 264 bitstream from memory and save it into flv or publish it into rtmp (the audio and video format of rtmp itself is flv). There are many examples of audio and video transcoding on the Internet (no encoding and decoding process, that is, audio and video format re-encapsulation), but they are all based on input files. Recently, the function of this area was done, and it is hereby recorded.
It was found that very little information was available in this area. A lot of information about FFmpeg reading memory 264 directly published into rtmp was searched on the internet.
0 kommentar(er)
