2001-12-27 21:24:56 +00:00
|
|
|
/*
|
|
|
|
* 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"
|
2007-03-15 18:36:36 +00:00
|
|
|
#include "stream/stream.h"
|
2001-12-27 21:24:56 +00:00
|
|
|
#include "demuxer.h"
|
|
|
|
#include "stheader.h"
|
|
|
|
#include "nuppelvideo.h"
|
|
|
|
|
|
|
|
|
|
|
|
struct nuv_signature
|
|
|
|
{
|
|
|
|
char finfo[12]; /* "NuppelVideo" + \0 */
|
|
|
|
char version[5]; /* "0.05" + \0 */
|
|
|
|
};
|
|
|
|
|
2008-01-06 23:20:15 +00:00
|
|
|
typedef struct nuv_position_t nuv_position_t;
|
2001-12-27 21:24:56 +00:00
|
|
|
|
2008-01-06 23:20:15 +00:00
|
|
|
struct nuv_position_t
|
2002-01-09 17:09:21 +00:00
|
|
|
{
|
|
|
|
off_t offset;
|
|
|
|
float time;
|
|
|
|
int frame;
|
|
|
|
nuv_position_t* next;
|
|
|
|
};
|
|
|
|
|
2008-01-06 23:20:15 +00:00
|
|
|
typedef struct nuv_info_t
|
2002-01-09 17:09:21 +00:00
|
|
|
{
|
|
|
|
int current_audio_frame;
|
|
|
|
int current_video_frame;
|
|
|
|
nuv_position_t *index_list;
|
|
|
|
nuv_position_t *current_position;
|
|
|
|
} nuv_priv_t;
|
|
|
|
|
2005-08-01 18:52:20 +00:00
|
|
|
/**
|
|
|
|
* \brief find best matching bitrate (in kbps) out of a table
|
|
|
|
* \param bitrate bitrate to find best match for
|
|
|
|
* \return best match from table
|
|
|
|
*/
|
|
|
|
static int nearestBitrate(int bitrate) {
|
|
|
|
const int rates[17] = {8000, 16000, 24000, 32000, 40000, 48000, 56000,
|
|
|
|
64000, 80000, 96000, 112000, 128000, 160000,
|
|
|
|
192000, 224000, 256000, 320000};
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
|
|
if ((rates[i] + rates[i + 1]) / 2 > bitrate)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return rates[i];
|
|
|
|
}
|
2002-01-09 17:09:21 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Seek to a position relative to the current position, indicated in time.
|
|
|
|
*/
|
2006-02-17 01:57:41 +00:00
|
|
|
static void demux_seek_nuv ( demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags )
|
2001-12-27 21:24:56 +00:00
|
|
|
{
|
2002-01-09 17:09:21 +00:00
|
|
|
#define MAX_TIME 1000000
|
|
|
|
nuv_priv_t* priv = demuxer->priv;
|
|
|
|
struct rtframeheader rtjpeg_frameheader;
|
2002-09-10 20:42:45 +00:00
|
|
|
off_t orig_pos;
|
|
|
|
off_t curr_pos;
|
2002-01-09 17:09:21 +00:00
|
|
|
float current_time = 0;
|
|
|
|
float start_time = MAX_TIME;
|
|
|
|
float target_time = start_time + rel_seek_secs * 1000; /* target_time, start_time are ms, rel_seek_secs s */
|
|
|
|
|
|
|
|
orig_pos = stream_tell ( demuxer->stream );
|
|
|
|
|
|
|
|
if ( rel_seek_secs > 0 )
|
|
|
|
{
|
|
|
|
/* Seeking forward */
|
|
|
|
|
|
|
|
|
|
|
|
while(current_time < target_time )
|
|
|
|
{
|
|
|
|
if (stream_read ( demuxer->stream, (char*)& rtjpeg_frameheader, sizeof ( rtjpeg_frameheader ) ) < sizeof(rtjpeg_frameheader))
|
|
|
|
return; /* EOF */
|
2005-03-03 10:19:56 +00:00
|
|
|
le2me_rtframeheader(&rtjpeg_frameheader);
|
2002-01-09 17:09:21 +00:00
|
|
|
|
|
|
|
if ( rtjpeg_frameheader.frametype == 'V' )
|
|
|
|
{
|
|
|
|
priv->current_position->next = (nuv_position_t*) malloc ( sizeof ( nuv_position_t ) );
|
|
|
|
priv->current_position = priv->current_position->next;
|
|
|
|
priv->current_position->frame = priv->current_video_frame++;
|
|
|
|
priv->current_position->time = rtjpeg_frameheader.timecode;
|
|
|
|
priv->current_position->offset = orig_pos;
|
|
|
|
priv->current_position->next = NULL;
|
|
|
|
|
|
|
|
if ( start_time == MAX_TIME )
|
|
|
|
{
|
|
|
|
start_time = rtjpeg_frameheader.timecode;
|
|
|
|
/* Recalculate target time with real start time */
|
|
|
|
target_time = start_time + rel_seek_secs*1000;
|
|
|
|
}
|
|
|
|
|
|
|
|
current_time = rtjpeg_frameheader.timecode;
|
|
|
|
|
|
|
|
curr_pos = stream_tell ( demuxer->stream );
|
|
|
|
stream_seek ( demuxer->stream, curr_pos + rtjpeg_frameheader.packetlength );
|
|
|
|
|
|
|
|
/* Adjust current sequence pointer */
|
|
|
|
}
|
|
|
|
else if ( rtjpeg_frameheader.frametype == 'A' )
|
|
|
|
{
|
|
|
|
if ( start_time == MAX_TIME )
|
|
|
|
{
|
|
|
|
start_time = rtjpeg_frameheader.timecode;
|
|
|
|
/* Recalculate target time with real start time */
|
|
|
|
target_time = start_time + rel_seek_secs * 1000;
|
|
|
|
}
|
|
|
|
current_time = rtjpeg_frameheader.timecode;
|
|
|
|
|
|
|
|
|
|
|
|
curr_pos = stream_tell ( demuxer->stream );
|
|
|
|
stream_seek ( demuxer->stream, curr_pos + rtjpeg_frameheader.packetlength );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* Seeking backward */
|
|
|
|
nuv_position_t* p;
|
|
|
|
start_time = priv->current_position->time;
|
|
|
|
|
|
|
|
/* Recalculate target time with real start time */
|
|
|
|
target_time = start_time + rel_seek_secs * 1000;
|
|
|
|
|
|
|
|
|
|
|
|
if(target_time < 0)
|
|
|
|
target_time = 0;
|
|
|
|
|
|
|
|
// Search the target time in the index list, get the offset
|
|
|
|
// and go to that offset.
|
|
|
|
p = priv->index_list;
|
|
|
|
while ( ( p->next != NULL ) && ( p->time < target_time ) )
|
|
|
|
{
|
|
|
|
p = p->next;
|
|
|
|
}
|
|
|
|
stream_seek ( demuxer->stream, p->offset );
|
|
|
|
priv->current_video_frame = p->frame;
|
|
|
|
}
|
2001-12-27 21:24:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-08-05 19:57:47 +00:00
|
|
|
static int demux_nuv_fill_buffer ( demuxer_t *demuxer, demux_stream_t *ds )
|
2001-12-27 21:24:56 +00:00
|
|
|
{
|
|
|
|
struct rtframeheader rtjpeg_frameheader;
|
2002-09-10 20:42:45 +00:00
|
|
|
off_t orig_pos;
|
2002-01-09 17:09:21 +00:00
|
|
|
nuv_priv_t* priv = demuxer->priv;
|
2002-09-30 21:10:41 +00:00
|
|
|
int want_audio = (demuxer->audio)&&(demuxer->audio->id!=-2);
|
2001-12-27 21:24:56 +00:00
|
|
|
|
2002-09-30 21:10:41 +00:00
|
|
|
demuxer->filepos = orig_pos = stream_tell ( demuxer->stream );
|
2001-12-27 21:24:56 +00:00
|
|
|
if (stream_read ( demuxer->stream, (char*)& rtjpeg_frameheader, sizeof ( rtjpeg_frameheader ) ) < sizeof(rtjpeg_frameheader))
|
|
|
|
return 0; /* EOF */
|
2005-03-03 10:19:56 +00:00
|
|
|
le2me_rtframeheader(&rtjpeg_frameheader);
|
2001-12-27 21:24:56 +00:00
|
|
|
|
|
|
|
#if 0
|
2001-12-27 23:07:30 +00:00
|
|
|
printf("NUV frame: frametype: %c, comptype: %c, packetlength: %d\n",
|
|
|
|
rtjpeg_frameheader.frametype, rtjpeg_frameheader.comptype,
|
|
|
|
rtjpeg_frameheader.packetlength);
|
2001-12-27 21:24:56 +00:00
|
|
|
#endif
|
|
|
|
|
2005-08-01 18:52:20 +00:00
|
|
|
/* Skip Seekpoint, Extended header and Sync for now */
|
2001-12-27 21:24:56 +00:00
|
|
|
if ((rtjpeg_frameheader.frametype == 'R') ||
|
2005-08-01 18:52:20 +00:00
|
|
|
(rtjpeg_frameheader.frametype == 'X') ||
|
2001-12-27 21:24:56 +00:00
|
|
|
(rtjpeg_frameheader.frametype == 'S'))
|
|
|
|
return 1;
|
|
|
|
|
2005-08-01 18:52:20 +00:00
|
|
|
/* Skip seektable and text (these have a payload) */
|
|
|
|
if ((rtjpeg_frameheader.frametype == 'Q') ||
|
|
|
|
(rtjpeg_frameheader.frametype == 'T')) {
|
|
|
|
stream_skip(demuxer->stream, rtjpeg_frameheader.packetlength);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2001-12-27 21:24:56 +00:00
|
|
|
if (((rtjpeg_frameheader.frametype == 'D') &&
|
|
|
|
(rtjpeg_frameheader.comptype == 'R')) ||
|
|
|
|
(rtjpeg_frameheader.frametype == 'V'))
|
|
|
|
{
|
2002-01-09 17:09:21 +00:00
|
|
|
if ( rtjpeg_frameheader.frametype == 'V' )
|
|
|
|
{
|
|
|
|
priv->current_video_frame++;
|
|
|
|
priv->current_position->next = (nuv_position_t*) malloc(sizeof(nuv_position_t));
|
|
|
|
priv->current_position = priv->current_position->next;
|
|
|
|
priv->current_position->frame = priv->current_video_frame;
|
|
|
|
priv->current_position->time = rtjpeg_frameheader.timecode;
|
|
|
|
priv->current_position->offset = orig_pos;
|
|
|
|
priv->current_position->next = NULL;
|
|
|
|
}
|
2001-12-27 21:24:56 +00:00
|
|
|
/* 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,
|
2002-03-31 21:08:15 +00:00
|
|
|
rtjpeg_frameheader.timecode*0.001, orig_pos, 0 );
|
2002-01-09 17:09:21 +00:00
|
|
|
|
|
|
|
|
|
|
|
} else
|
2005-08-01 18:52:20 +00:00
|
|
|
if (demuxer->audio && (rtjpeg_frameheader.frametype == 'A'))
|
2001-12-27 21:24:56 +00:00
|
|
|
{
|
2002-01-09 17:09:21 +00:00
|
|
|
priv->current_audio_frame++;
|
2002-09-30 21:10:41 +00:00
|
|
|
if (want_audio) {
|
|
|
|
/* put Audio to audio buffer */
|
|
|
|
ds_read_packet ( demuxer->audio, demuxer->stream,
|
|
|
|
rtjpeg_frameheader.packetlength,
|
|
|
|
rtjpeg_frameheader.timecode*0.001,
|
|
|
|
orig_pos + 12, 0 );
|
|
|
|
} else {
|
|
|
|
/* skip audio block */
|
2005-08-01 18:52:20 +00:00
|
|
|
stream_skip ( demuxer->stream,
|
|
|
|
rtjpeg_frameheader.packetlength );
|
2002-09-30 21:10:41 +00:00
|
|
|
}
|
2001-12-27 21:24:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2005-08-01 18:52:20 +00:00
|
|
|
/* Scan for the extended data in MythTV nuv streams */
|
|
|
|
static int demux_xscan_nuv(demuxer_t* demuxer, int width, int height) {
|
|
|
|
int i;
|
|
|
|
off_t orig_pos = stream_tell(demuxer->stream);
|
|
|
|
struct rtframeheader rtjpeg_frameheader;
|
|
|
|
struct extendeddata ext;
|
|
|
|
sh_video_t* sh_video = demuxer->video->sh;
|
|
|
|
sh_audio_t* sh_audio = demuxer->audio->sh;
|
|
|
|
|
|
|
|
for (i = 0; i < 2; ++i) {
|
|
|
|
if (stream_read(demuxer->stream, (char*)&rtjpeg_frameheader,
|
|
|
|
sizeof(rtjpeg_frameheader)) < sizeof(rtjpeg_frameheader))
|
|
|
|
goto out;
|
2005-10-25 20:01:09 +00:00
|
|
|
le2me_rtframeheader(&rtjpeg_frameheader);
|
2005-08-01 18:52:20 +00:00
|
|
|
|
|
|
|
if (rtjpeg_frameheader.frametype != 'X')
|
|
|
|
stream_skip(demuxer->stream, rtjpeg_frameheader.packetlength);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( rtjpeg_frameheader.frametype != 'X' )
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (rtjpeg_frameheader.packetlength != sizeof(ext)) {
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_WARN,
|
|
|
|
"NUV extended frame does not have expected length, ignoring\n");
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (stream_read(demuxer->stream, (char*)&ext, sizeof(ext)) < sizeof(ext))
|
|
|
|
goto out;
|
2005-10-25 20:01:09 +00:00
|
|
|
le2me_extendeddata(&ext);
|
2005-08-01 18:52:20 +00:00
|
|
|
|
|
|
|
if (ext.version != 1) {
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_WARN,
|
|
|
|
"NUV extended frame has unknown version number (%d), ignoring\n",
|
|
|
|
ext.version);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_V, "Detected MythTV stream\n");
|
|
|
|
|
|
|
|
/* Video parameters */
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_V, "FOURCC: %c%c%c%c\n",
|
|
|
|
(ext.video_fourcc >> 24) & 0xff,
|
|
|
|
(ext.video_fourcc >> 16) & 0xff,
|
|
|
|
(ext.video_fourcc >> 8) & 0xff,
|
|
|
|
(ext.video_fourcc) & 0xff);
|
|
|
|
sh_video->format = ext.video_fourcc;
|
|
|
|
sh_video->i_bps = ext.lavc_bitrate;
|
|
|
|
|
|
|
|
/* Audio parameters */
|
|
|
|
if (ext.audio_fourcc == mmioFOURCC('L', 'A', 'M', 'E')) {
|
|
|
|
sh_audio->format = 0x55;
|
|
|
|
} else if (ext.audio_fourcc == mmioFOURCC('R', 'A', 'W', 'A')) {
|
|
|
|
sh_audio->format = 0x1;
|
|
|
|
} else {
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_WARN,
|
|
|
|
"Unknown audio format 0x%x\n", ext.audio_fourcc);
|
|
|
|
}
|
|
|
|
|
|
|
|
sh_audio->channels = ext.audio_channels;
|
|
|
|
sh_audio->samplerate = ext.audio_sample_rate;
|
|
|
|
sh_audio->i_bps = sh_audio->channels * sh_audio->samplerate *
|
|
|
|
ext.audio_bits_per_sample;
|
|
|
|
if (sh_audio->format != 0x1)
|
|
|
|
sh_audio->i_bps = nearestBitrate(sh_audio->i_bps /
|
|
|
|
ext.audio_compression_ratio);
|
|
|
|
sh_audio->wf->wFormatTag = sh_audio->format;
|
|
|
|
sh_audio->wf->nChannels = sh_audio->channels;
|
|
|
|
sh_audio->wf->nSamplesPerSec = sh_audio->samplerate;
|
|
|
|
sh_audio->wf->nAvgBytesPerSec = sh_audio->i_bps / 8;
|
|
|
|
sh_audio->wf->nBlockAlign = sh_audio->channels * 2;
|
|
|
|
sh_audio->wf->wBitsPerSample = ext.audio_bits_per_sample;
|
|
|
|
sh_audio->wf->cbSize = 0;
|
|
|
|
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_V,
|
|
|
|
"channels=%d bitspersample=%d samplerate=%d compression_ratio=%d\n",
|
|
|
|
ext.audio_channels, ext.audio_bits_per_sample,
|
|
|
|
ext.audio_sample_rate, ext.audio_compression_ratio);
|
|
|
|
return 1;
|
|
|
|
out:
|
|
|
|
stream_reset(demuxer->stream);
|
|
|
|
stream_seek(demuxer->stream, orig_pos);
|
|
|
|
return 0;
|
|
|
|
}
|
2001-12-27 21:24:56 +00:00
|
|
|
|
2005-08-05 19:57:47 +00:00
|
|
|
static demuxer_t* demux_open_nuv ( demuxer_t* demuxer )
|
2001-12-27 21:24:56 +00:00
|
|
|
{
|
|
|
|
sh_video_t *sh_video = NULL;
|
|
|
|
sh_audio_t *sh_audio = NULL;
|
|
|
|
struct rtfileheader rtjpeg_fileheader;
|
2002-01-09 17:09:21 +00:00
|
|
|
nuv_priv_t* priv = (nuv_priv_t*) malloc ( sizeof ( nuv_priv_t) );
|
|
|
|
demuxer->priv = priv;
|
|
|
|
priv->current_audio_frame = 0;
|
|
|
|
priv->current_video_frame = 0;
|
|
|
|
|
2001-12-27 21:24:56 +00:00
|
|
|
|
|
|
|
/* Go to the start */
|
|
|
|
stream_reset(demuxer->stream);
|
|
|
|
stream_seek(demuxer->stream, 0);
|
|
|
|
|
|
|
|
stream_read ( demuxer->stream, (char*)& rtjpeg_fileheader, sizeof(rtjpeg_fileheader) );
|
2005-03-03 10:19:56 +00:00
|
|
|
le2me_rtfileheader(&rtjpeg_fileheader);
|
2001-12-27 21:24:56 +00:00
|
|
|
|
|
|
|
/* no video */
|
|
|
|
if (rtjpeg_fileheader.videoblocks == 0)
|
|
|
|
{
|
2006-04-22 05:12:10 +00:00
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_INFO, MSGTR_MPDEMUX_NUV_NoVideoBlocksInFile);
|
2001-12-27 21:24:56 +00:00
|
|
|
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;
|
2001-12-27 23:07:30 +00:00
|
|
|
|
2002-01-02 23:22:33 +00:00
|
|
|
/* 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)
|
2002-07-06 15:23:20 +00:00
|
|
|
sh_video->aspect = (float) 4.0f/3.0f;
|
2001-12-27 21:24:56 +00:00
|
|
|
|
|
|
|
/* Get the FPS */
|
|
|
|
sh_video->fps = rtjpeg_fileheader.fps;
|
|
|
|
sh_video->frametime = 1 / sh_video->fps;
|
|
|
|
|
|
|
|
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;
|
|
|
|
}
|
2002-01-09 17:09:21 +00:00
|
|
|
|
2005-08-01 18:52:20 +00:00
|
|
|
/* Check for extended data (X frame) and read settings from it */
|
|
|
|
if (!demux_xscan_nuv(demuxer, rtjpeg_fileheader.width,
|
|
|
|
rtjpeg_fileheader.height))
|
|
|
|
/* Otherwise assume defaults */
|
|
|
|
mp_msg(MSGT_DEMUXER, MSGL_V, "No NUV extended frame, using defaults\n");
|
|
|
|
|
|
|
|
|
2002-01-09 17:09:21 +00:00
|
|
|
priv->index_list = (nuv_position_t*) malloc(sizeof(nuv_position_t));
|
|
|
|
priv->index_list->frame = 0;
|
|
|
|
priv->index_list->time = 0;
|
|
|
|
priv->index_list->offset = stream_tell ( demuxer->stream );
|
|
|
|
priv->index_list->next = NULL;
|
|
|
|
priv->current_position = priv->index_list;
|
2001-12-27 21:24:56 +00:00
|
|
|
|
|
|
|
return demuxer;
|
|
|
|
}
|
|
|
|
|
2005-08-05 19:57:47 +00:00
|
|
|
static int nuv_check_file ( demuxer_t* demuxer )
|
2001-12-27 21:24:56 +00:00
|
|
|
{
|
|
|
|
struct nuv_signature ns;
|
|
|
|
|
|
|
|
/* Store original position */
|
2002-09-10 20:42:45 +00:00
|
|
|
off_t orig_pos = stream_tell(demuxer->stream);
|
2001-12-27 21:24:56 +00:00
|
|
|
|
|
|
|
mp_msg ( MSGT_DEMUX, MSGL_V, "Checking for NuppelVideo\n" );
|
|
|
|
|
2005-06-26 15:15:38 +00:00
|
|
|
if(stream_read(demuxer->stream,(char*)&ns,sizeof(ns)) != sizeof(ns))
|
|
|
|
return 0;
|
2001-12-27 21:24:56 +00:00
|
|
|
|
2005-08-01 18:52:20 +00:00
|
|
|
if ( strncmp ( ns.finfo, "NuppelVideo", 12 ) &&
|
|
|
|
strncmp ( ns.finfo, "MythTVVideo", 12 ) )
|
2001-12-27 21:24:56 +00:00
|
|
|
return 0; /* Not a NuppelVideo file */
|
2005-08-01 18:52:20 +00:00
|
|
|
if ( strncmp ( ns.version, "0.05", 5 ) &&
|
|
|
|
strncmp ( ns.version, "0.06", 5 ) &&
|
|
|
|
strncmp ( ns.version, "0.07", 5 ) )
|
2001-12-27 21:24:56 +00:00
|
|
|
return 0; /* Wrong version NuppelVideo file */
|
|
|
|
|
|
|
|
/* Return to original position */
|
|
|
|
stream_seek ( demuxer->stream, orig_pos );
|
2005-08-05 19:57:47 +00:00
|
|
|
return DEMUXER_TYPE_NUV;
|
2001-12-27 21:24:56 +00:00
|
|
|
}
|
2002-04-24 15:36:07 +00:00
|
|
|
|
2005-08-05 19:57:47 +00:00
|
|
|
static void demux_close_nuv(demuxer_t* demuxer) {
|
2002-04-24 15:36:07 +00:00
|
|
|
nuv_priv_t* priv = demuxer->priv;
|
|
|
|
nuv_position_t* pos;
|
|
|
|
if(!priv)
|
|
|
|
return;
|
|
|
|
for(pos = priv->index_list ; pos != NULL ; ) {
|
|
|
|
nuv_position_t* p = pos;
|
|
|
|
pos = pos->next;
|
|
|
|
free(p);
|
|
|
|
}
|
|
|
|
free(priv);
|
|
|
|
}
|
2005-08-05 19:57:47 +00:00
|
|
|
|
|
|
|
|
|
|
|
demuxer_desc_t demuxer_desc_nuv = {
|
|
|
|
"NuppelVideo demuxer",
|
|
|
|
"nuv",
|
|
|
|
"NuppelVideo",
|
|
|
|
"Panagiotis Issaris",
|
|
|
|
"",
|
|
|
|
DEMUXER_TYPE_NUV,
|
|
|
|
1, // safe autodetect
|
|
|
|
nuv_check_file,
|
|
|
|
demux_nuv_fill_buffer,
|
|
|
|
demux_open_nuv,
|
|
|
|
demux_close_nuv,
|
|
|
|
demux_seek_nuv,
|
|
|
|
NULL
|
|
|
|
};
|