Function send_command_packet

libavformat/mmst.c:126–153

Send a prepared MMST command packet. */

/** Send a prepared MMST command packet. */
static int send_command_packet(MMSTContext *mmst)
{
    MMSContext *mms  = &mmst->mms;
    int len= mms->write_out_ptr - mms->out_buffer;
    int exact_length = FFALIGN(len, 8);
    int first_length= exact_length - 16;
    int len8= first_length/8;
    int write_result;

    // update packet length fields.
    AV_WL32(mms->out_buffer + 8, first_length);
    AV_WL32(mms->out_buffer + 16, len8);
    AV_WL32(mms->out_buffer + 32, len8-2);
    memset(mms->write_out_ptr, 0, exact_length - len);

    // write it out.
    write_result= ffurl_write(mms->mms_hd, mms->out_buffer, exact_length);
    if(write_result != exact_length) {
        av_log(mms->mms_hd, AV_LOG_ERROR,
               "Failed to write data of length %d: %d (%s)\n",
               exact_length, write_result,
               write_result < 0 ? strerror(AVUNERROR(write_result)) :
                   "The server closed the connection");
        return AVERROR(EIO);
    }

    return 0;
}

static int mms_put_utf16(MMSContext *mms, const uint8_t *src)
{