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/*
* NuppelVideo 0.05 file parser
* for MPlayer
* by Panagiotis Issaris <takis@lumumba.luc.ac.be>
*
* Reworked by alex
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "nuppelvideo.h"
//#include "RTjpegN.h"
//#include "minilzo.h"
struct nuv_signature
{
char finfo[12]; /* "NuppelVideo" + \0 */
char version[5]; /* "0.05" + \0 */
};
void demux_seek_nuv ( demuxer_t *demuxer, float rel_seek_secs, int flags )
{
}
int demux_nuv_fill_buffer ( demuxer_t *demuxer )
{
struct rtframeheader rtjpeg_frameheader;
int orig_pos;
orig_pos = stream_tell ( demuxer->stream );
if (stream_read ( demuxer->stream, (char*)& rtjpeg_frameheader, sizeof ( rtjpeg_frameheader ) ) < sizeof(rtjpeg_frameheader))
return 0; /* EOF */
#if 0
printf("NUV frame: frametype: %c, comptype: %c, packetlength: %d\n",
rtjpeg_frameheader.frametype, rtjpeg_frameheader.comptype,
rtjpeg_frameheader.packetlength);
#endif
/* Skip Seekpoint, Text and Sync for now */
if ((rtjpeg_frameheader.frametype == 'R') ||
(rtjpeg_frameheader.frametype == 'T') ||
(rtjpeg_frameheader.frametype == 'S'))
return 1;
if (((rtjpeg_frameheader.frametype == 'D') &&
(rtjpeg_frameheader.comptype == 'R')) ||
(rtjpeg_frameheader.frametype == 'V'))
{
/* put RTjpeg tables, Video info to video buffer */
stream_seek ( demuxer->stream, orig_pos );
ds_read_packet ( demuxer->video, demuxer->stream, rtjpeg_frameheader.packetlength + 12,
rtjpeg_frameheader.timecode / 1000, orig_pos, 0 );
}
/* copy PCM only */
if (demuxer->audio && (rtjpeg_frameheader.frametype == 'A') &&
(rtjpeg_frameheader.comptype == '0'))
{
/* put Audio to audio buffer */
ds_read_packet ( demuxer->audio, demuxer->stream, rtjpeg_frameheader.packetlength,
rtjpeg_frameheader.timecode / 1000, orig_pos + 12, 0 );
}
return 1;
}
demuxer_t* demux_open_nuv ( demuxer_t* demuxer )
{
sh_video_t *sh_video = NULL;
sh_audio_t *sh_audio = NULL;
struct rtfileheader rtjpeg_fileheader;
struct rtframeheader rtjpeg_frameheader;
unsigned long int tbls[128];
int bytes_read;
/* Go to the start */
stream_reset(demuxer->stream);
stream_seek(demuxer->stream, 0);
stream_read ( demuxer->stream, (char*)& rtjpeg_fileheader, sizeof(rtjpeg_fileheader) );
/* no video */
if (rtjpeg_fileheader.videoblocks == 0)
{
printf("No video blocks in file\n");
return NULL;
}
/* Create a new video stream header */
sh_video = new_sh_video ( demuxer, 0 );
/* Make sure the demuxer knows about the new video stream header
* (even though new_sh_video() ought to take care of it)
*/
demuxer->video->sh = sh_video;
/* Make sure that the video demuxer stream header knows about its
* parent video demuxer stream (this is getting wacky), or else
* video_read_properties() will choke
*/
sh_video->ds = demuxer->video;
/* Custom fourcc for internal MPlayer use */
sh_video->format = mmioFOURCC('N', 'U', 'V', '1');
sh_video->disp_w = rtjpeg_fileheader.width;
sh_video->disp_h = rtjpeg_fileheader.height;
/* NuppelVideo uses pixel aspect ratio
here display aspect ratio is used.
For the moment NuppelVideo only supports 1.0 thus
1.33 == 4:3 aspect ratio.
*/
if(rtjpeg_fileheader.aspect == 1.0)
sh_video->aspect = (float) 1.33;
/* Get the FPS */
sh_video->fps = rtjpeg_fileheader.fps;
sh_video->frametime = 1 / sh_video->fps;
#if 1
if (rtjpeg_fileheader.audioblocks != 0)
{
sh_audio = new_sh_audio(demuxer, 0);
demuxer->audio->sh = sh_audio;
sh_audio->ds = demuxer->audio;
sh_audio->format = 0x1;
sh_audio->channels = 2;
sh_audio->samplerate = 44100;
sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
memset(sh_audio->wf, 0, sizeof(WAVEFORMATEX));
sh_audio->wf->wFormatTag = sh_audio->format;
sh_audio->wf->nChannels = sh_audio->channels;
sh_audio->wf->wBitsPerSample = 16;
sh_audio->wf->nSamplesPerSec = sh_audio->samplerate;
sh_audio->wf->nAvgBytesPerSec = sh_audio->wf->nChannels*
sh_audio->wf->wBitsPerSample*sh_audio->wf->nSamplesPerSec/8;
sh_audio->wf->nBlockAlign = sh_audio->channels * 2;
sh_audio->wf->cbSize = 0;
}
#endif
return demuxer;
}
int nuv_check_file ( demuxer_t* demuxer )
{
struct nuv_signature ns;
/* Store original position */
int orig_pos = stream_tell(demuxer->stream);
mp_msg ( MSGT_DEMUX, MSGL_V, "Checking for NuppelVideo\n" );
stream_read(demuxer->stream,(char*)&ns,sizeof(ns));
if ( strncmp ( ns.finfo, "NuppelVideo", 12 ) )
return 0; /* Not a NuppelVideo file */
if ( strncmp ( ns.version, "0.05", 5 ) )
return 0; /* Wrong version NuppelVideo file */
/* Return to original position */
stream_seek ( demuxer->stream, orig_pos );
return 1;
}
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