rtsp_session_t *rtsp_session_start(xine_stream_t *stream, char *mrl) {
rtsp_session_t *rtsp_session = calloc(1, sizeof(rtsp_session_t));
xine_t *xine = stream->xine;
char *server;
char *mrl_line=strdup(mrl);
rmff_header_t *h;
int bandwidth_id;
uint32_t bandwidth;
bandwidth_id = xine->config->register_enum(xine->config, "media.network.bandwidth", 10,
rtsp_bandwidth_strs,
_("network bandwidth"),
_("Specify the bandwidth of your internet connection here. "
"This will be used when streaming servers offer different versions "
"with different bandwidth requirements of the same stream."),
0, NULL, NULL);
bandwidth = rtsp_bandwidths[bandwidth_id];
rtsp_session->recv = xine_buffer_init(BUF_SIZE);
connect:
/* connect to server */
rtsp_session->s=rtsp_connect(stream, mrl_line, NULL);
if (!rtsp_session->s)
{
xprintf(stream->xine, XINE_VERBOSITY_LOG,
_("rtsp_session: failed to connect to server %s\n"), mrl_line);
xine_buffer_free(rtsp_session->recv);
free(rtsp_session);
return NULL;
}
/* looking for server type */
if (rtsp_search_answers(rtsp_session->s,"Server"))
server=strdup(rtsp_search_answers(rtsp_session->s,"Server"));
else {
if (rtsp_search_answers(rtsp_session->s,"RealChallenge1"))
server=strdup("Real");
else
server=strdup("unknown");
}
if (strstr(server,"Real") || strstr(server,"Helix"))
{
/* we are talking to a real server ... */
h=real_setup_and_get_header(rtsp_session->s, bandwidth);
if (!h) {
/* got an redirect? */
if (rtsp_search_answers(rtsp_session->s, "Location"))
{
free(mrl_line);
mrl_line=strdup(rtsp_search_answers(rtsp_session->s, "Location"));
xprintf(stream->xine, XINE_VERBOSITY_DEBUG, "rtsp_session: redirected to %s\n", mrl_line);
rtsp_close(rtsp_session->s);
free(server);
goto connect; /* *shudder* i made a design mistake somewhere */
} else
{
xprintf(stream->xine, XINE_VERBOSITY_LOG,
_("rtsp_session: session can not be established.\n"));
rtsp_close(rtsp_session->s);
xine_buffer_free(rtsp_session->recv);
free(rtsp_session);
return NULL;
}
}
rtsp_session->header_left =
rtsp_session->header_len = rmff_dump_header(h,rtsp_session->header,HEADER_SIZE);
if (rtsp_session->header_len < 0) {
xprintf (stream->xine, XINE_VERBOSITY_LOG,
_("rtsp_session: rtsp server returned overly-large headers, session can not be established.\n"));
goto session_abort;
}
xine_buffer_copyin(rtsp_session->recv, 0, rtsp_session->header, rtsp_session->header_len);
rtsp_session->recv_size = rtsp_session->header_len;
rtsp_session->recv_read = 0;
} else
{
xprintf(stream->xine, XINE_VERBOSITY_LOG,
_("rtsp_session: rtsp server type '%s' not supported yet. sorry.\n"), server);
session_abort:
rtsp_close(rtsp_session->s);
free(server);
xine_buffer_free(rtsp_session->recv);
free(rtsp_session);
return NULL;
}
free(server);
return rtsp_session;
}
static void jpeg_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
jpeg_decoder_t *this = (jpeg_decoder_t *) this_gen;
if (!this->video_open) {
lprintf("opening video\n");
(this->stream->video_out->open) (this->stream->video_out, this->stream);
this->video_open = 1;
}
xine_buffer_copyin(this->image, this->index, buf->mem, buf->size);
this->index += buf->size;
if (buf->decoder_flags & BUF_FLAG_FRAME_END && this->index > 0) {
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
JSAMPARRAY buffer;
int i, linesize;
int width, height;
vo_frame_t *img;
int max_width, max_height;
uint8_t *slice_start[1] = {NULL};
int slice_line = 0;
/* query max. image size vo can handle */
max_width = this->stream->video_out->get_property( this->stream->video_out,
VO_PROP_MAX_VIDEO_WIDTH);
max_height = this->stream->video_out->get_property( this->stream->video_out,
VO_PROP_MAX_VIDEO_HEIGHT);
/* init and parse header */
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_decompress(&cinfo);
jpeg_memory_src(&cinfo, this->image, this->index);
jpeg_read_header(&cinfo, TRUE);
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_WIDTH, cinfo.image_width);
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HEIGHT, cinfo.image_height);
lprintf("header parsed\n");
/* set decoding parameters */
cinfo.out_color_space = JCS_YCbCr;
/* request scaling when image is too large for vo */
if (this->cls->enable_downscaling) {
cinfo.output_width = cinfo.image_width;
cinfo.output_height = cinfo.image_height;
cinfo.scale_num = 1;
cinfo.scale_denom = 1;
while ((max_width > 0 && cinfo.output_width > max_width) ||
(max_height > 0 && cinfo.output_height > max_height)) {
cinfo.scale_denom <<= 1;
cinfo.output_width >>= 1;
cinfo.output_height >>= 1;
}
if (cinfo.scale_denom > 1) {
xprintf(this->stream->xine, XINE_VERBOSITY_LOG,
LOG_MODULE ": downscaling image by 1:%d to %dx%d\n",
cinfo.scale_denom, cinfo.output_width, cinfo.output_height);
}
}
/* start decompress */
jpeg_start_decompress(&cinfo);
width = cinfo.output_width;
height = cinfo.output_height;
/* crop when image is too large for vo */
if (max_width > 0 && cinfo.output_width > max_width)
width = max_width;
if (max_height > 0 && cinfo.output_height > max_height)
height = max_height;
img = this->stream->video_out->get_frame (this->stream->video_out,
width, height,
(double)width/(double)height,
XINE_IMGFMT_YUY2,
VO_BOTH_FIELDS);
linesize = cinfo.output_width * cinfo.output_components;
buffer = (cinfo.mem->alloc_sarray)((void*)&cinfo, JPOOL_IMAGE, linesize, 1);
if (img->proc_slice && !(img->height & 0xf)) {
slice_start[0] = img->base[0];
}
/* cut to frame width */
if (cinfo.output_width > img->width) {
lprintf("cut right border %d pixels\n", cinfo.output_width - img->width);
linesize = img->width * 3;
}
/* YUV444->YUV422 simple */
while (cinfo.output_scanline < cinfo.output_height) {
uint8_t *dst = img->base[0] + img->pitches[0] * cinfo.output_scanline;
jpeg_read_scanlines(&cinfo, buffer, 1);
/* cut to frame height */
if (cinfo.output_scanline > img->height) {
lprintf("cut bottom scanline %d\n", cinfo.output_scanline - 1);
continue;
}
for (i = 0; i < linesize; i += 3) {
*dst++ = buffer[0][i];
if (i & 1) {
*dst++ = buffer[0][i + 2];
} else {
*dst++ = buffer[0][i + 1];
}
}
if (slice_start[0]) {
slice_line++;
if (slice_line == 16) {
img->proc_slice(img, slice_start);
slice_start[0] += 16 * img->pitches[0];
slice_line = 0;
}
}
}
/* final slice */
if (slice_start[0] && slice_line) {
img->proc_slice(img, slice_start);
}
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
img->pts = buf->pts;
img->duration = 3600;
img->bad_frame = 0;
_x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, img->duration);
img->draw(img, this->stream);
img->free(img);
this->index = 0;
}
