Function write_uncoded_frame_internal

libavformat/mux.c:1373–1414

}

static int write_uncoded_frame_internal(AVFormatContext *s, int stream_index,
                                        AVFrame *frame, int interleaved)
{
    FFFormatContext *const si = ffformatcontext(s);
    AVPacket *pkt = si->parse_pkt;

    av_assert0(s->oformat);
    if (!ffofmt(s->oformat)->write_uncoded_frame) {
        av_frame_free(&frame);
        return AVERROR(ENOSYS);
    }

    if (!frame) {
        pkt = NULL;
    } else {
        size_t   bufsize = sizeof(frame) + AV_INPUT_BUFFER_PADDING_SIZE;
        AVFrame **framep = av_mallocz(bufsize);

        if (!framep)
            goto fail;
        pkt->buf = av_buffer_create((void *)framep, bufsize,
                                   uncoded_frame_free, NULL, 0);
        if (!pkt->buf) {
            av_free(framep);
    fail:
            av_frame_free(&frame);
            return AVERROR(ENOMEM);
        }
        *framep = frame;

        pkt->data         = (void *)framep;
        pkt->size         = sizeof(frame);
        pkt->pts          =
        pkt->dts          = frame->pts;
        pkt->duration = frame->duration;
        pkt->stream_index = stream_index;
        pkt->flags |= AV_PKT_FLAG_UNCODED_FRAME;
    }

    return interleaved ? av_interleaved_write_frame(s, pkt) :
                         av_write_frame(s, pkt);
}

int av_write_uncoded_frame(AVFormatContext *s, int stream_index,
                           AVFrame *frame)