Function http_read

libavformat/http.c:316–358

static int http_read(URLContext *h, uint8_t *buf, int size)
{
    HTTPContext *s = h->priv_data;
    int len;

    if (s->chunksize >= 0) {
        if (!s->chunksize) {
            char line[32];

            for(;;) {
                do {
                    if (http_get_line(s, line, sizeof(line)) < 0)
                        return AVERROR(EIO);
                } while (!*line);    /* skip CR LF from last chunk */

                s->chunksize = strtoll(line, NULL, 16);

                dprintf(NULL, "Chunked encoding data size: %"PRId64"'\n", s->chunksize);

                if (!s->chunksize)
                    return 0;
                break;
            }
        }
        size = FFMIN(size, s->chunksize);
    }
    /* read bytes from input buffer first */
    len = s->buf_end - s->buf_ptr;
    if (len > 0) {
        if (len > size)
            len = size;
        memcpy(buf, s->buf_ptr, len);
        s->buf_ptr += len;
    } else {
        len = url_read(s->hd, buf, size);
    }
    if (len > 0) {
        s->off += len;
        if (s->chunksize > 0)
            s->chunksize -= len;
    }
    return len;
}

/* used only when posting data */
static int http_write(URLContext *h, uint8_t *buf, int size)