1 /*****************************************************************************
2 * v4l.c : Video4Linux input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 VideoLAN
5 * $Id: v4l.c,v 1.30 2003/11/15 23:21:35 fenrir Exp $
7 * Author: Laurent Aimar <fenrir@via.ecp.fr>
8 * Paul Forgey <paulf at aphrodite dot com>
9 * Gildas Bazin <gbazin@netcourrier.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
34 #include <vlc/input.h>
38 #include <sys/types.h>
40 #include <sys/ioctl.h>
46 /* From GStreamer's v4l plugin:
47 * Because of some really cool feature in video4linux1, also known as
48 * 'not including sys/types.h and sys/time.h', we had to include it
49 * ourselves. In all their intelligence, these people decided to fix
50 * this in the next version (video4linux2) in such a cool way that it
51 * breaks all compilations of old stuff...
52 * The real problem is actually that linux/time.h doesn't use proper
53 * macro checks before defining types like struct timeval. The proper
54 * fix here is to either fuck the kernel header (which is what we do
55 * by defining _LINUX_TIME_H, an innocent little hack) or by fixing it
56 * upstream, which I'll consider doing later on. If you get compiler
57 * errors here, check your linux/time.h && sys/time.h header setup.
61 #include <linux/videodev.h>
62 #include "videodev_mjpeg.h"
64 #include <sys/soundcard.h>
66 /*****************************************************************************
68 *****************************************************************************/
69 static int AccessOpen ( vlc_object_t * );
70 static void AccessClose ( vlc_object_t * );
71 static int Read ( input_thread_t *, byte_t *, size_t );
73 static void ParseMRL ( input_thread_t * );
74 static int OpenVideoDev( input_thread_t *, char * );
75 static int OpenAudioDev( input_thread_t *, char * );
77 static int DemuxOpen ( vlc_object_t * );
78 static void DemuxClose ( vlc_object_t * );
79 static int Demux ( input_thread_t * );
81 /*****************************************************************************
83 *****************************************************************************/
84 #define CACHING_TEXT N_("Caching value in ms")
85 #define CACHING_LONGTEXT N_( \
86 "Allows you to modify the default caching value for v4l streams. This " \
87 "value should be set in miliseconds units." )
88 #define VDEV_TEXT N_("Video device name")
89 #define VDEV_LONGTEXT N_( \
90 "Specify the name of the video device that will be used. " \
91 "If you don't specify anything, no video device will be used.")
92 #define ADEV_TEXT N_("Audio device name")
93 #define ADEV_LONGTEXT N_( \
94 "Specify the name of the audio device that will be used. " \
95 "If you don't specify anything, no video device will be used.")
98 set_description( _("Video4Linux input") );
99 add_category_hint( N_("v4l"), NULL, VLC_TRUE );
100 add_integer( "v4l-caching", DEFAULT_PTS_DELAY / 1000, NULL,
101 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
102 add_shortcut( "v4l" );
103 set_capability( "access", 10 );
104 set_callbacks( AccessOpen, AccessClose );
106 add_string( "v4l-vdev", "/dev/video", 0, VDEV_TEXT, VDEV_LONGTEXT,
108 add_string( "v4l-adev", "/dev/dsp", 0, ADEV_TEXT, ADEV_LONGTEXT,
112 set_description( _("Video4Linux demuxer") );
113 add_shortcut( "v4l" );
114 set_capability( "demux", 200 );
115 set_callbacks( DemuxOpen, DemuxClose );
119 /****************************************************************************
121 ****************************************************************************/
122 #define MJPEG_BUFFER_SIZE (256*1024)
124 struct quicktime_mjpeg_app1
126 uint32_t i_reserved; /* set to 0 */
127 uint32_t i_tag; /* 'mjpg' */
128 uint32_t i_field_size; /* offset following EOI */
129 uint32_t i_padded_field_size; /* offset following EOI+pad */
130 uint32_t i_next_field; /* offset to next field */
131 uint32_t i_DQT_offset;
132 uint32_t i_DHT_offset;
133 uint32_t i_SOF_offset;
134 uint32_t i_SOS_offset;
135 uint32_t i_data_offset; /* following SOS marker data */
141 char *psz_device; /* Main device from MRL, can be video or audio */
149 /* Video properties */
161 float f_fps; /* <= 0.0 mean to grab at full rate */
162 mtime_t i_video_pts; /* only used when f_fps > 0 */
168 struct video_capability vid_cap;
169 struct video_mbuf vid_mbuf;
170 struct mjpeg_requestbuffers mjpeg_buffers;
172 uint8_t *p_video_mmap;
175 struct video_mmap vid_mmap;
176 struct video_picture vid_picture;
178 uint8_t *p_video_frame;
179 int i_video_frame_size;
180 int i_video_frame_size_allocated;
182 /* Audio properties */
183 vlc_fourcc_t i_acodec_raw;
187 uint8_t *p_audio_frame;
188 int i_audio_frame_size;
189 int i_audio_frame_size_allocated;
195 uint8_t *p_header; // at lest 8 bytes allocated
200 uint8_t *p_data; // never allocated
208 * fcc "auds"|"vids" 0
225 static void SetDWBE( uint8_t *p, uint32_t dw )
227 p[0] = (dw >> 24)&0xff;
228 p[1] = (dw >> 16)&0xff;
229 p[2] = (dw >> 8)&0xff;
233 static void SetQWBE( uint8_t *p, uint64_t qw )
235 SetDWBE( p, (qw >> 32)&0xffffffff );
236 SetDWBE( &p[4], qw&0xffffffff);
239 /*****************************************************************************
240 * AccessOpen: opens v4l device
241 *****************************************************************************
243 * url: <video device>::::
245 *****************************************************************************/
246 static int AccessOpen( vlc_object_t *p_this )
248 input_thread_t *p_input = (input_thread_t *)p_this;
252 /* create access private data */
253 p_input->p_access_data = p_sys = malloc( sizeof( access_sys_t ) );
254 memset( p_sys, 0, sizeof( access_sys_t ) );
257 p_sys->i_norm = VIDEO_MODE_AUTO; // auto
259 p_sys->i_frequency = -1;
262 p_sys->i_video_pts = -1;
264 p_sys->b_mjpeg = VLC_FALSE;
265 p_sys->i_decimation = 1;
266 p_sys->i_quality = 100;
268 p_sys->i_video_frame_size_allocated = 0;
269 p_sys->i_frame_pos = 0;
271 p_sys->p_audio_frame = 0;
272 p_sys->i_sample_rate = 44100;
273 p_sys->b_stereo = VLC_TRUE;
275 p_sys->p_header = NULL;
276 p_sys->i_data_size = 0;
277 p_sys->i_data_pos = 0;
278 p_sys->p_data = NULL;
280 p_sys->psz_device = p_sys->psz_vdev = p_sys->psz_adev = NULL;
281 p_sys->fd_video = -1;
282 p_sys->fd_audio = -1;
286 /* Find main device (video or audio) */
287 if( p_sys->psz_device && *p_sys->psz_device )
289 msg_Dbg( p_input, "main device=`%s'", p_sys->psz_device );
291 /* Try to open as video device */
292 p_sys->fd_video = OpenVideoDev( p_input, p_sys->psz_device );
294 if( p_sys->fd_video < 0 )
296 /* Try to open as audio device */
297 p_sys->fd_audio = OpenAudioDev( p_input, p_sys->psz_device );
298 if( p_sys->fd_audio >= 0 )
300 if( p_sys->psz_adev ) free( p_sys->psz_adev );
301 p_sys->psz_adev = p_sys->psz_device;
302 p_sys->psz_device = NULL;
307 if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
308 p_sys->psz_vdev = p_sys->psz_device;
309 p_sys->psz_device = NULL;
313 /* If no device opened, only continue if the access was forced */
314 if( p_sys->fd_video < 0 && p_sys->fd_audio < 0 )
316 if( !p_input->psz_access ||
317 strcmp( p_input->psz_access, "v4l" ) )
319 AccessClose( p_this );
324 /* Find video device */
325 if( p_sys->fd_video < 0 )
327 if( !p_sys->psz_vdev || !*p_sys->psz_vdev )
329 var_Create( p_input, "v4l-vdev",
330 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
331 var_Get( p_input, "v4l-vdev", &val );
333 if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
334 p_sys->psz_vdev = val.psz_string;
337 if( p_sys->psz_vdev && *p_sys->psz_vdev )
339 p_sys->fd_video = OpenVideoDev( p_input, p_sys->psz_vdev );
343 /* Find audio device */
344 if( p_sys->fd_audio < 0 )
346 if( !p_sys->psz_adev || !*p_sys->psz_adev )
348 var_Create( p_input, "v4l-adev",
349 VLC_VAR_STRING | VLC_VAR_DOINHERIT );
350 var_Get( p_input, "v4l-adev", &val );
352 if( p_sys->psz_adev ) free( p_sys->psz_adev );
353 p_sys->psz_adev = val.psz_string;
356 if( p_sys->psz_adev && *p_sys->psz_adev )
358 p_sys->fd_audio = OpenAudioDev( p_input, p_sys->psz_adev );
362 if( p_sys->fd_video < 0 && p_sys->fd_audio < 0 )
364 AccessClose( p_this );
368 p_input->pf_read = Read;
369 p_input->pf_seek = NULL;
370 p_input->pf_set_area = NULL;
371 p_input->pf_set_program = NULL;
373 vlc_mutex_lock( &p_input->stream.stream_lock );
374 p_input->stream.b_pace_control = 0;
375 p_input->stream.b_seekable = 0;
376 p_input->stream.p_selected_area->i_size = 0;
377 p_input->stream.p_selected_area->i_tell = 0;
378 p_input->stream.i_method = INPUT_METHOD_FILE;
379 vlc_mutex_unlock( &p_input->stream.stream_lock );
381 /* Update default_pts to a suitable value for access */
382 var_Create( p_input, "v4l-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
383 var_Get( p_input, "v4l-caching", &val );
384 p_input->i_pts_delay = val.i_int * 1000;
386 msg_Info( p_input, "v4l grabbing started" );
389 p_sys->i_streams = 0;
390 p_sys->i_header_size = 8;
391 p_sys->i_header_pos = 8;
392 p_sys->p_header = malloc( p_sys->i_header_size );
394 memcpy( p_sys->p_header, ".v4l", 4 );
396 if( p_sys->fd_video >= 0 )
398 p_sys->i_header_size += 20;
399 p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header_size );
401 SetDWBE( &p_sys->p_header[4], ++p_sys->i_streams );
403 memcpy( &p_sys->p_header[p_sys->i_header_pos], "vids", 4 );
404 memcpy( &p_sys->p_header[p_sys->i_header_pos+4],
405 &p_sys->i_fourcc, 4 );
406 SetDWBE( &p_sys->p_header[p_sys->i_header_pos+8], p_sys->i_width );
407 SetDWBE( &p_sys->p_header[p_sys->i_header_pos+12], p_sys->i_height );
408 SetDWBE( &p_sys->p_header[p_sys->i_header_pos+16], 0 );
410 p_sys->i_header_pos = p_sys->i_header_size;
413 if( p_sys->fd_audio >= 0 )
415 p_sys->i_header_size += 20;
416 p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header_size );
418 SetDWBE( &p_sys->p_header[4], ++p_sys->i_streams );
420 memcpy( &p_sys->p_header[p_sys->i_header_pos], "auds", 4 );
421 memcpy( &p_sys->p_header[p_sys->i_header_pos+4], "araw", 4 );
422 SetDWBE( &p_sys->p_header[p_sys->i_header_pos+8],
423 p_sys->b_stereo ? 2 : 1 );
424 SetDWBE( &p_sys->p_header[p_sys->i_header_pos+12],
425 p_sys->i_sample_rate );
426 SetDWBE( &p_sys->p_header[p_sys->i_header_pos+16], 16 );
428 p_sys->i_header_pos = p_sys->i_header_size;
430 p_sys->i_header_pos = 0;
435 /*****************************************************************************
436 * ParseMRL: parse the options contained in the MRL
437 *****************************************************************************/
438 static void ParseMRL( input_thread_t *p_input )
440 access_sys_t *p_sys = p_input->p_access_data;
442 char *psz_dup = strdup( p_input->psz_name );
443 char *psz_parser = psz_dup;
445 while( *psz_parser && *psz_parser != ':' )
450 if( *psz_parser == ':' )
455 *psz_parser++ = '\0';
456 if( !strncmp( psz_parser, "channel=", strlen( "channel=" ) ) )
458 p_sys->i_channel = strtol( psz_parser + strlen( "channel=" ),
461 else if( !strncmp( psz_parser, "norm=", strlen( "norm=" ) ) )
463 psz_parser += strlen( "norm=" );
464 if( !strncmp( psz_parser, "pal", strlen( "pal" ) ) )
466 p_sys->i_norm = VIDEO_MODE_PAL;
467 psz_parser += strlen( "pal" );
469 else if( !strncmp( psz_parser, "ntsc", strlen( "ntsc" ) ) )
471 p_sys->i_norm = VIDEO_MODE_NTSC;
472 psz_parser += strlen( "ntsc" );
474 else if( !strncmp( psz_parser, "secam", strlen( "secam" ) ) )
476 p_sys->i_norm = VIDEO_MODE_SECAM;
477 psz_parser += strlen( "secam" );
479 else if( !strncmp( psz_parser, "auto", strlen( "auto" ) ) )
481 p_sys->i_norm = VIDEO_MODE_AUTO;
482 psz_parser += strlen( "auto" );
486 p_sys->i_norm = strtol( psz_parser, &psz_parser, 0 );
489 else if( !strncmp( psz_parser, "frequency=",
490 strlen( "frequency=" ) ) )
493 strtol( psz_parser + strlen( "frequency=" ),
495 if( p_sys->i_frequency < 30000 )
497 msg_Warn( p_input, "v4l syntax has changed : "
498 "'frequency' is now channel frequency in kHz");
501 else if( !strncmp( psz_parser, "audio=", strlen( "audio=" ) ) )
503 p_sys->i_audio = strtol( psz_parser + strlen( "audio=" ),
506 else if( !strncmp( psz_parser, "size=", strlen( "size=" ) ) )
508 psz_parser += strlen( "size=" );
509 if( !strncmp( psz_parser, "subqcif", strlen( "subqcif" ) ) )
511 p_sys->i_width = 128;
512 p_sys->i_height = 96;
514 else if( !strncmp( psz_parser, "qsif", strlen( "qsif" ) ) )
516 p_sys->i_width = 160;
517 p_sys->i_height = 120;
519 else if( !strncmp( psz_parser, "qcif", strlen( "qcif" ) ) )
521 p_sys->i_width = 176;
522 p_sys->i_height = 144;
524 else if( !strncmp( psz_parser, "sif", strlen( "sif" ) ) )
526 p_sys->i_width = 320;
527 p_sys->i_height = 244;
529 else if( !strncmp( psz_parser, "cif", strlen( "cif" ) ) )
531 p_sys->i_width = 352;
532 p_sys->i_height = 288;
534 else if( !strncmp( psz_parser, "vga", strlen( "vga" ) ) )
536 p_sys->i_width = 640;
537 p_sys->i_height = 480;
542 p_sys->i_width = strtol( psz_parser, &psz_parser, 0 );
543 if( *psz_parser == 'x' || *psz_parser == 'X')
545 p_sys->i_height = strtol( psz_parser + 1,
548 msg_Dbg( p_input, "WxH %dx%d", p_sys->i_width,
552 else if( !strncmp( psz_parser, "tuner=", strlen( "tuner=" ) ) )
554 p_sys->i_tuner = strtol( psz_parser + strlen( "tuner=" ),
557 else if( !strncmp( psz_parser, "adev=", strlen( "adev=" ) ) )
561 psz_parser += strlen( "adev=" );
562 if( strchr( psz_parser, ':' ) )
564 i_len = strchr( psz_parser, ':' ) - psz_parser;
568 i_len = strlen( psz_parser );
571 p_sys->psz_adev = strndup( psz_parser, i_len );
575 else if( !strncmp( psz_parser, "samplerate=",
576 strlen( "samplerate=" ) ) )
578 p_sys->i_sample_rate =
579 strtol( psz_parser + strlen( "samplerate=" ),
582 else if( !strncmp( psz_parser, "stereo", strlen( "stereo" ) ) )
584 psz_parser += strlen( "stereo" );
586 p_sys->b_stereo = VLC_TRUE;
588 else if( !strncmp( psz_parser, "mono", strlen( "mono" ) ) )
590 psz_parser += strlen( "mono" );
592 p_sys->b_stereo = VLC_FALSE;
594 else if( !strncmp( psz_parser, "mjpeg", strlen( "mjpeg" ) ) )
596 psz_parser += strlen( "mjpeg" );
598 p_sys->b_mjpeg = VLC_TRUE;
600 else if( !strncmp( psz_parser, "decimation=",
601 strlen( "decimation=" ) ) )
603 p_sys->i_decimation =
604 strtol( psz_parser + strlen( "decimation=" ),
607 else if( !strncmp( psz_parser, "quality=",
608 strlen( "quality=" ) ) )
611 strtol( psz_parser + strlen( "quality=" ),
614 else if( !strncmp( psz_parser, "fps=", strlen( "fps=" ) ) )
616 p_sys->f_fps = strtof( psz_parser + strlen( "fps=" ),
621 msg_Warn( p_input, "unknown option" );
624 while( *psz_parser && *psz_parser != ':' )
629 if( *psz_parser == '\0' )
638 p_sys->psz_device = strdup( psz_dup );
642 /*****************************************************************************
644 *****************************************************************************/
645 int OpenVideoDev( input_thread_t *p_input, char *psz_device )
647 access_sys_t *p_sys = p_input->p_access_data;
650 struct video_channel vid_channel;
651 struct mjpeg_params mjpeg;
654 if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
656 msg_Err( p_input, "cannot open device (%s)", strerror( errno ) );
660 if( ioctl( i_fd, VIDIOCGCAP, &p_sys->vid_cap ) < 0 )
662 msg_Err( p_input, "cannot get capabilities (%s)", strerror( errno ) );
667 "V4L device %s %d channels %d audios %d < w < %d %d < h < %d",
669 p_sys->vid_cap.channels,
670 p_sys->vid_cap.audios,
671 p_sys->vid_cap.minwidth, p_sys->vid_cap.maxwidth,
672 p_sys->vid_cap.minheight, p_sys->vid_cap.maxheight );
674 if( p_sys->i_channel < 0 || p_sys->i_channel >= p_sys->vid_cap.channels )
676 msg_Dbg( p_input, "invalid channel, falling back on channel 0" );
677 p_sys->i_channel = 0;
679 if( p_sys->i_audio >= p_sys->vid_cap.audios )
681 msg_Dbg( p_input, "invalid audio, falling back with no audio" );
685 if( p_sys->i_width < p_sys->vid_cap.minwidth ||
686 p_sys->i_width > p_sys->vid_cap.maxwidth )
688 msg_Dbg( p_input, "invalid width %i", p_sys->i_width );
691 if( p_sys->i_height < p_sys->vid_cap.minheight ||
692 p_sys->i_height > p_sys->vid_cap.maxheight )
694 msg_Dbg( p_input, "invalid height %i", p_sys->i_height );
698 if( !( p_sys->vid_cap.type & VID_TYPE_CAPTURE ) )
700 msg_Err( p_input, "cannot grab" );
704 vid_channel.channel = p_sys->i_channel;
705 if( ioctl( i_fd, VIDIOCGCHAN, &vid_channel ) < 0 )
707 msg_Err( p_input, "cannot get channel infos (%s)",
712 "setting channel %s(%d) %d tuners flags=0x%x type=0x%x norm=0x%x",
720 if( p_sys->i_tuner >= vid_channel.tuners )
722 msg_Dbg( p_input, "invalid tuner, falling back on tuner 0" );
726 vid_channel.norm = p_sys->i_norm;
727 if( ioctl( i_fd, VIDIOCSCHAN, &vid_channel ) < 0 )
729 msg_Err( p_input, "cannot set channel (%s)", strerror( errno ) );
733 if( vid_channel.flags & VIDEO_VC_TUNER )
738 struct video_tuner vid_tuner;
739 if( p_sys->i_tuner >= 0 )
741 vid_tuner.tuner = p_sys->i_tuner;
742 if( ioctl( i_fd, VIDIOCGTUNER, &vid_tuner ) < 0 )
744 msg_Err( p_input, "cannot get tuner (%s)", strerror( errno ) );
747 msg_Dbg( p_input, "tuner %s low=%d high=%d, flags=0x%x "
748 "mode=0x%x signal=0x%x",
749 vid_tuner.name, vid_tuner.rangelow, vid_tuner.rangehigh,
750 vid_tuner.flags, vid_tuner.mode, vid_tuner.signal );
752 msg_Dbg( p_input, "setting tuner %s (%d)",
753 vid_tuner.name, vid_tuner.tuner );
755 /* FIXME FIXME to be checked FIXME FIXME */
756 //vid_tuner.mode = p_sys->i_norm;
757 if( ioctl( i_fd, VIDIOCSTUNER, &vid_tuner ) < 0 )
759 msg_Err( p_input, "cannot set tuner (%s)", strerror( errno ) );
765 /* Show a warning if frequency is < than 30000.
766 * User is certainly usint old syntax. */
770 if( p_sys->i_frequency >= 0 )
772 int driver_frequency = p_sys->i_frequency * 16 /1000;
773 if( ioctl( i_fd, VIDIOCSFREQ, &driver_frequency ) < 0 )
775 msg_Err( p_input, "cannot set frequency (%s)",
779 msg_Dbg( p_input, "frequency %d (%d)", p_sys->i_frequency,
785 if( vid_channel.flags & VIDEO_VC_AUDIO )
787 struct video_audio vid_audio;
789 /* XXX TODO volume, balance, ... */
790 if( p_sys->i_audio >= 0 )
792 vid_audio.audio = p_sys->i_audio;
793 if( ioctl( i_fd, VIDIOCGAUDIO, &vid_audio ) < 0 )
795 msg_Err( p_input, "cannot get audio (%s)", strerror( errno ) );
800 vid_audio.flags &= ~VIDEO_AUDIO_MUTE;
802 if( ioctl( i_fd, VIDIOCSAUDIO, &vid_audio ) < 0 )
804 msg_Err( p_input, "cannot set audio (%s)", strerror( errno ) );
811 /* establish basic params with input and norm before feeling width
815 struct quicktime_mjpeg_app1 *p_app1;
818 if( ioctl( i_fd, MJPIOC_G_PARAMS, &mjpeg ) < 0 )
820 msg_Err( p_input, "cannot get mjpeg params (%s)",
824 mjpeg.input = p_sys->i_channel;
825 mjpeg.norm = p_sys->i_norm;
826 mjpeg.decimation = p_sys->i_decimation;
829 mjpeg.img_width = p_sys->i_width / p_sys->i_decimation;
830 if( p_sys->i_height )
831 mjpeg.img_height = p_sys->i_height / p_sys->i_decimation;
833 /* establish Quicktime APP1 marker while we are here */
838 p_app1 = (struct quicktime_mjpeg_app1 *)mjpeg.APP_data;
839 p_app1->i_reserved = 0;
840 p_app1->i_tag = VLC_FOURCC( 'm','j','p','g' );
841 p_app1->i_field_size = 0;
842 p_app1->i_padded_field_size = 0;
843 p_app1->i_next_field = 0;
844 /* XXX WARNING XXX */
845 /* these's nothing magic about these values. We are dangerously
846 * assuming the encoder card is encoding mjpeg-a and is not throwing
847 * in marker tags we aren't expecting. It's bad enough we have to
848 * search through the jpeg output for every frame we grab just to
849 * find the first field's end marker, so we take this risk to boost
851 * This is really something the driver could do for us because this
852 * does conform to standards outside of Apple Quicktime.
855 p_app1->i_DQT_offset = hton32( i_offset );
857 p_app1->i_DHT_offset = hton32( i_offset );
859 p_app1->i_SOF_offset = hton32( i_offset );
861 p_app1->i_SOS_offset = hton32( i_offset );
863 p_app1->i_data_offset = hton32( i_offset );
865 /* SOF and SOS aren't specified by the mjpeg API because they aren't
866 * optional. They will be present in the output. */
867 mjpeg.jpeg_markers = JPEG_MARKER_DHT | JPEG_MARKER_DQT;
869 if( ioctl( i_fd, MJPIOC_S_PARAMS, &mjpeg ) < 0 )
871 msg_Err( p_input, "cannot set mjpeg params (%s)",
876 p_sys->i_width = mjpeg.img_width * mjpeg.HorDcm;
877 p_sys->i_height = mjpeg.img_height * mjpeg.VerDcm *
878 mjpeg.field_per_buff;
881 /* fix width/height */
882 if( !p_sys->b_mjpeg && ( p_sys->i_width == 0 || p_sys->i_height == 0 ) )
884 struct video_window vid_win;
886 if( ioctl( i_fd, VIDIOCGWIN, &vid_win ) < 0 )
888 msg_Err( p_input, "cannot get win (%s)", strerror( errno ) );
891 p_sys->i_width = vid_win.width;
892 p_sys->i_height = vid_win.height;
894 msg_Dbg( p_input, "will use %dx%d", p_sys->i_width, p_sys->i_height );
897 p_sys->p_video_frame = NULL;
899 if( !p_sys->b_mjpeg )
901 /* Find out video format used by device */
902 if( ioctl( i_fd, VIDIOCGPICT, &p_sys->vid_picture ) == 0 )
904 int i_chroma = VLC_FOURCC( ' ', ' ', ' ', ' ' );
905 struct video_picture vid_picture = p_sys->vid_picture;
907 /* Try to set the format to something easy to encode */
908 vid_picture.palette = VIDEO_PALETTE_YUV420P;
909 if( ioctl( i_fd, VIDIOCSPICT, &vid_picture ) == 0 )
911 p_sys->vid_picture = vid_picture;
915 vid_picture.palette = VIDEO_PALETTE_YUV422P;
916 if( ioctl( i_fd, VIDIOCSPICT, &vid_picture ) == 0 )
918 p_sys->vid_picture = vid_picture;
922 /* Find out final format */
923 switch( p_sys->vid_picture.palette )
925 case VIDEO_PALETTE_GREY:
926 i_chroma = VLC_FOURCC( 'G', 'R', 'E', 'Y' );
928 case VIDEO_PALETTE_HI240:
929 i_chroma = VLC_FOURCC( 'I', '2', '4', '0' );
931 case VIDEO_PALETTE_RGB565:
932 i_chroma = VLC_FOURCC( 'R', 'V', '1', '6' );
934 case VIDEO_PALETTE_RGB555:
935 i_chroma = VLC_FOURCC( 'R', 'V', '1', '5' );
937 case VIDEO_PALETTE_RGB24:
938 i_chroma = VLC_FOURCC( 'R', 'V', '2', '4' );
940 case VIDEO_PALETTE_RGB32:
941 i_chroma = VLC_FOURCC( 'R', 'V', '3', '2' );
943 case VIDEO_PALETTE_YUV422:
944 i_chroma = VLC_FOURCC( 'I', '4', '2', '2' );
946 case VIDEO_PALETTE_YUYV:
947 i_chroma = VLC_FOURCC( 'Y', 'U', 'Y', 'V' );
949 case VIDEO_PALETTE_UYVY:
950 i_chroma = VLC_FOURCC( 'U', 'Y', 'V', 'Y' );
952 case VIDEO_PALETTE_YUV420:
953 i_chroma = VLC_FOURCC( 'I', '4', '2', 'N' );
955 case VIDEO_PALETTE_YUV411:
956 i_chroma = VLC_FOURCC( 'I', '4', '1', 'N' );
958 case VIDEO_PALETTE_RAW:
959 i_chroma = VLC_FOURCC( 'G', 'R', 'A', 'W' );
961 case VIDEO_PALETTE_YUV422P:
962 i_chroma = VLC_FOURCC( 'I', '4', '2', '2' );
964 case VIDEO_PALETTE_YUV420P:
965 i_chroma = VLC_FOURCC( 'I', '4', '2', '0' );
967 case VIDEO_PALETTE_YUV411P:
968 i_chroma = VLC_FOURCC( 'I', '4', '1', '1' );
971 p_sys->i_fourcc = i_chroma;
975 msg_Err( p_input, "ioctl VIDIOCGPICT failed" );
984 p_sys->mjpeg_buffers.count = 8;
985 p_sys->mjpeg_buffers.size = MJPEG_BUFFER_SIZE;
987 if( ioctl( i_fd, MJPIOC_REQBUFS, &p_sys->mjpeg_buffers ) < 0 )
989 msg_Err( p_input, "mmap unsupported" );
993 p_sys->p_video_mmap = mmap( 0,
994 p_sys->mjpeg_buffers.size * p_sys->mjpeg_buffers.count,
995 PROT_READ | PROT_WRITE, MAP_SHARED, i_fd, 0 );
996 if( p_sys->p_video_mmap == MAP_FAILED )
998 msg_Err( p_input, "mmap failed" );
1002 p_sys->i_fourcc = VLC_FOURCC( 'm','j','p','g' );
1003 p_sys->i_frame_pos = -1;
1005 /* queue up all the frames */
1006 for( i = 0; i < (int)p_sys->mjpeg_buffers.count; i++ )
1008 if( ioctl( i_fd, MJPIOC_QBUF_CAPT, &i ) < 0 )
1010 msg_Err( p_input, "unable to queue frame" );
1017 /* Fill in picture_t fields */
1018 vout_InitPicture( VLC_OBJECT(p_input), &p_sys->pic, p_sys->i_fourcc,
1019 p_sys->i_width, p_sys->i_height, p_sys->i_width *
1020 VOUT_ASPECT_FACTOR / p_sys->i_height );
1021 if( !p_sys->pic.i_planes )
1023 msg_Err( p_input, "unsupported chroma" );
1026 p_sys->i_video_frame_size = 0;
1027 for( i = 0; i < p_sys->pic.i_planes; i++ )
1029 p_sys->i_video_frame_size += p_sys->pic.p[i].i_lines *
1030 p_sys->pic.p[i].i_visible_pitch;
1033 msg_Dbg( p_input, "v4l device uses frame size: %i",
1034 p_sys->i_video_frame_size );
1035 msg_Dbg( p_input, "v4l device uses chroma: %4.4s",
1036 (char*)&p_sys->i_fourcc );
1038 /* Allocate mmap buffer */
1039 if( ioctl( i_fd, VIDIOCGMBUF, &p_sys->vid_mbuf ) < 0 )
1041 msg_Err( p_input, "mmap unsupported" );
1045 p_sys->p_video_mmap = mmap( 0, p_sys->vid_mbuf.size,
1046 PROT_READ|PROT_WRITE, MAP_SHARED,
1048 if( p_sys->p_video_mmap == MAP_FAILED )
1050 /* FIXME -> normal read */
1051 msg_Err( p_input, "mmap failed" );
1056 p_sys->vid_mmap.frame = 0;
1057 p_sys->vid_mmap.width = p_sys->i_width;
1058 p_sys->vid_mmap.height = p_sys->i_height;
1059 p_sys->vid_mmap.format = p_sys->vid_picture.palette;
1060 if( ioctl( i_fd, VIDIOCMCAPTURE, &p_sys->vid_mmap ) < 0 )
1062 msg_Warn( p_input, "%4.4s refused", (char*)&p_sys->i_fourcc );
1063 msg_Err( p_input, "chroma selection failed" );
1071 if( i_fd >= 0 ) close( i_fd );
1075 /*****************************************************************************
1077 *****************************************************************************/
1078 int OpenAudioDev( input_thread_t *p_input, char *psz_device )
1080 access_sys_t *p_sys = p_input->p_access_data;
1083 if( (i_fd = open( psz_device, O_RDONLY | O_NONBLOCK )) < 0 )
1085 msg_Err( p_input, "cannot open audio device (%s)", strerror( errno ) );
1089 i_format = AFMT_S16_LE;
1090 if( ioctl( i_fd, SNDCTL_DSP_SETFMT, &i_format ) < 0
1091 || i_format != AFMT_S16_LE )
1093 msg_Err( p_input, "cannot set audio format (16b little endian) "
1094 "(%s)", strerror( errno ) );
1098 if( ioctl( i_fd, SNDCTL_DSP_STEREO,
1099 &p_sys->b_stereo ) < 0 )
1101 msg_Err( p_input, "cannot set audio channels count (%s)",
1102 strerror( errno ) );
1106 if( ioctl( i_fd, SNDCTL_DSP_SPEED,
1107 &p_sys->i_sample_rate ) < 0 )
1109 msg_Err( p_input, "cannot set audio sample rate (%s)",
1110 strerror( errno ) );
1114 msg_Dbg( p_input, "openened adev=`%s' %s %dHz",
1115 psz_device, p_sys->b_stereo ? "stereo" : "mono",
1116 p_sys->i_sample_rate );
1118 p_sys->i_audio_frame_size = 0;
1119 p_sys->i_audio_frame_size_allocated = 6*1024;
1120 p_sys->p_audio_frame = malloc( p_sys->i_audio_frame_size_allocated );
1126 if( i_fd >= 0 ) close( i_fd );
1130 /*****************************************************************************
1131 * AccessClose: close device, free resources
1132 *****************************************************************************/
1133 static void AccessClose( vlc_object_t *p_this )
1135 input_thread_t *p_input = (input_thread_t *)p_this;
1136 access_sys_t *p_sys = p_input->p_access_data;
1138 if( p_sys->psz_device ) free( p_sys->psz_device );
1139 if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
1140 if( p_sys->psz_adev ) free( p_sys->psz_adev );
1141 if( p_sys->fd_video >= 0 ) close( p_sys->fd_video );
1142 if( p_sys->fd_audio >= 0 ) close( p_sys->fd_audio );
1144 if( p_sys->p_header ) free( p_sys->p_header );
1145 if( p_sys->p_audio_frame ) free( p_sys->p_audio_frame );
1147 if( p_sys->b_mjpeg )
1150 ioctl( p_sys->fd_video, MJPIOC_QBUF_CAPT, &i_noframe );
1153 if( p_sys->p_video_mmap && p_sys->p_video_mmap != MAP_FAILED )
1155 if( p_sys->b_mjpeg )
1156 munmap( p_sys->p_video_mmap, p_sys->mjpeg_buffers.size *
1157 p_sys->mjpeg_buffers.count );
1159 munmap( p_sys->p_video_mmap, p_sys->vid_mbuf.size );
1165 /*****************************************************************************
1166 * GrabAudio: grab audio
1167 *****************************************************************************/
1168 static int GrabAudio( input_thread_t * p_input,
1173 access_sys_t *p_sys = p_input->p_access_data;
1174 struct audio_buf_info buf_info;
1178 i_read = read( p_sys->fd_audio, p_sys->p_audio_frame,
1179 p_sys->i_audio_frame_size_allocated );
1183 return VLC_EGENERIC;
1186 p_sys->i_audio_frame_size = i_read;
1188 /* from vls : correct the date because of kernel buffering */
1190 if( ioctl( p_sys->fd_audio, SNDCTL_DSP_GETISPACE, &buf_info ) == 0 )
1192 i_correct += buf_info.bytes;
1196 *pp_data = p_sys->p_audio_frame;
1197 *pi_data = p_sys->i_audio_frame_size;
1198 *pi_pts = mdate() - (mtime_t)1000000 * (mtime_t)i_correct /
1199 2 / ( p_sys->b_stereo ? 2 : 1) / p_sys->i_sample_rate;
1203 /*****************************************************************************
1205 *****************************************************************************/
1206 static uint8_t *GrabCapture( input_thread_t *p_input )
1208 access_sys_t *p_sys = p_input->p_access_data;
1209 p_sys->vid_mmap.frame = ( p_sys->i_frame_pos + 1 ) %
1210 p_sys->vid_mbuf.frames;
1213 if( ioctl( p_sys->fd_video, VIDIOCMCAPTURE, &p_sys->vid_mmap ) >= 0 )
1218 if( errno != EAGAIN )
1220 msg_Err( p_input, "failed while grabbing new frame" );
1223 msg_Dbg( p_input, "another try ?" );
1226 //msg_Warn( p_input, "grab a new frame" );
1228 while( ioctl(p_sys->fd_video, VIDIOCSYNC, &p_sys->i_frame_pos) < 0 &&
1229 ( errno == EAGAIN || errno == EINTR ) );
1231 p_sys->i_frame_pos = p_sys->vid_mmap.frame;
1232 /* leave i_video_frame_size alone */
1233 return p_sys->p_video_mmap + p_sys->vid_mbuf.offsets[p_sys->i_frame_pos];
1236 static uint8_t *GrabMJPEG( input_thread_t *p_input )
1238 access_sys_t *p_sys = p_input->p_access_data;
1239 struct mjpeg_sync sync;
1240 uint8_t *p_frame, *p_field, *p;
1243 struct quicktime_mjpeg_app1 *p_app1 = NULL;
1245 /* re-queue the last frame we sync'd */
1246 if( p_sys->i_frame_pos != -1 )
1247 while( ioctl( p_sys->fd_video, MJPIOC_QBUF_CAPT, &p_sys->i_frame_pos ) < 0 &&
1248 ( errno == EAGAIN || errno == EINTR ) );
1250 /* sync on the next frame */
1251 while( ioctl( p_sys->fd_video, MJPIOC_SYNC, &sync ) < 0 &&
1252 ( errno == EAGAIN || errno == EINTR ) );
1254 p_sys->i_frame_pos = sync.frame;
1255 p_frame = p_sys->p_video_mmap + p_sys->mjpeg_buffers.size * sync.frame;
1257 /* p_frame now points to the data. fix up the Quicktime APP1 marker */
1259 tag = hton16( tag );
1263 p = memmem( p_field, sync.length, &tag, 2 );
1267 p += 2; /* data immediately following EOI */
1269 p_app1 = (struct quicktime_mjpeg_app1 *)(p_field + 6);
1271 i_size = ((uint32_t)(p - p_field));
1272 i_size = hton32( i_size );
1273 memcpy( &p_app1->i_field_size, &i_size, 4 );
1275 while( *p == 0xff && *(p+1) == 0xff )
1278 i_size = ((uint32_t)(p - p_field));
1279 i_size = hton32( i_size );
1280 memcpy( &p_app1->i_padded_field_size, &i_size, 4 );
1284 tag = hton16( tag );
1285 p_field = memmem( p, sync.length - (size_t)(p - p_frame), &tag, 2 );
1289 i_size = (uint32_t)(p_field - p_frame);
1290 i_size = hton32( i_size );
1291 memcpy( &p_app1->i_next_field, &i_size, 4 );
1294 p_app1 = (struct quicktime_mjpeg_app1 *)(p_field + 6);
1296 tag = hton16( tag );
1297 p = memmem( p_field, sync.length - (size_t)(p_field - p_frame),
1302 /* sometimes the second field doesn't have the EOI. just put it
1305 p = p_frame + sync.length;
1306 memcpy( p, &tag, 2 );
1311 i_size = (uint32_t)(p - p_field);
1312 i_size = hton32( i_size );
1313 memcpy( &p_app1->i_field_size, &i_size, 4 );
1314 i_size = (uint32_t)(sync.length - (uint32_t)(p_field - p_frame));
1315 i_size = hton32( i_size );
1316 memcpy( &p_app1->i_padded_field_size, &i_size, 4 );
1319 p_sys->i_video_frame_size = sync.length;
1323 static int GrabVideo( input_thread_t * p_input,
1328 access_sys_t *p_sys = p_input->p_access_data;
1332 if( p_sys->f_fps >= 0.1 && p_sys->i_video_pts > 0 )
1334 mtime_t i_dur = (mtime_t)((double)1000000 / (double)p_sys->f_fps);
1336 /* Dif we wait long enougth ? */
1337 if( p_sys->i_video_pts + i_dur > mdate() )
1339 return VLC_EGENERIC;
1343 if( p_sys->b_mjpeg )
1344 p_frame = GrabMJPEG( p_input );
1346 p_frame = GrabCapture( p_input );
1349 return VLC_EGENERIC;
1351 p_sys->i_video_pts = mdate();
1352 p_sys->p_video_frame = p_frame;
1354 *pp_data = p_sys->p_video_frame;
1355 *pi_data = p_sys->i_video_frame_size;
1356 *pi_pts = p_sys->i_video_pts;
1361 /*****************************************************************************
1362 * Read: reads from the device into PES packets.
1363 *****************************************************************************
1364 * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
1366 *****************************************************************************/
1367 static int Read( input_thread_t * p_input, byte_t * p_buffer, size_t i_len )
1369 access_sys_t *p_sys = p_input->p_access_data;
1376 /* First copy header if any */
1377 if( p_sys->i_header_pos < p_sys->i_header_size )
1381 i_copy = __MIN( p_sys->i_header_size - p_sys->i_header_pos,
1383 memcpy( p_buffer, &p_sys->p_header[p_sys->i_header_pos], i_copy );
1384 p_sys->i_header_pos += i_copy;
1392 if( i_len > 0 && p_sys->i_data_pos < p_sys->i_data_size )
1396 i_copy = __MIN( p_sys->i_data_size - p_sys->i_data_pos,
1399 memcpy( p_buffer, &p_sys->p_data[p_sys->i_data_pos], i_copy );
1400 p_sys->i_data_pos += i_copy;
1407 /* The caller got what he wanted */
1413 /* Read no more than one frame at a time.
1414 * That kills latency, especially for encoded v4l streams */
1415 if( p_sys->i_data_size && p_sys->i_data_pos == p_sys->i_data_size )
1417 p_sys->i_data_pos = 0; p_sys->i_data_size = 0;
1421 /* Re-fill data by grabbing audio/video */
1422 p_sys->i_data_pos = p_sys->i_data_size = 0;
1424 /* Try grabbing audio frames first */
1425 i_stream = p_sys->i_streams - 1;
1426 if( p_sys->fd_audio < 0 ||
1427 GrabAudio( p_input, &p_sys->p_data,
1428 &p_sys->i_data_size, &i_pts ) != VLC_SUCCESS )
1430 /* Try grabbing video frame */
1432 if( p_sys->fd_video < 0 ||
1433 GrabVideo( p_input, &p_sys->p_data,
1434 &p_sys->i_data_size, &i_pts ) != VLC_SUCCESS )
1436 /* Sleep so we do not consume all the cpu, 10ms seems
1437 * like a good value (100fps) */
1443 /* create pseudo header */
1444 p_sys->i_header_size = 16;
1445 p_sys->i_header_pos = 0;
1446 SetDWBE( &p_sys->p_header[0], i_stream );
1447 SetDWBE( &p_sys->p_header[4], p_sys->i_data_size );
1448 SetQWBE( &p_sys->p_header[8], i_pts );
1454 /****************************************************************************
1456 ****************************************************************************/
1457 static int DemuxOpen( vlc_object_t *p_this )
1459 input_thread_t *p_input = (input_thread_t *)p_this;
1465 data_packet_t *p_pk;
1467 /* Initialize access plug-in structures. */
1468 if( p_input->i_mtu == 0 )
1470 /* Improve speed. */
1471 p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE ;
1474 /* a little test to see if it's a v4l stream */
1475 if( input_Peek( p_input, &p_peek, 8 ) < 8 )
1477 msg_Warn( p_input, "v4l plugin discarded (cannot peek)" );
1478 return VLC_EGENERIC;
1481 if( strncmp( p_peek, ".v4l", 4 ) || GetDWBE( &p_peek[4] ) <= 0 )
1483 msg_Warn( p_input, "v4l plugin discarded (not a valid stream)" );
1484 return VLC_EGENERIC;
1487 /* create one program */
1488 vlc_mutex_lock( &p_input->stream.stream_lock );
1489 if( input_InitStream( p_input, 0 ) == -1)
1491 vlc_mutex_unlock( &p_input->stream.stream_lock );
1492 msg_Err( p_input, "cannot init stream" );
1493 return( VLC_EGENERIC );
1495 if( input_AddProgram( p_input, 0, 0) == NULL )
1497 vlc_mutex_unlock( &p_input->stream.stream_lock );
1498 msg_Err( p_input, "cannot add program" );
1499 return VLC_EGENERIC;
1502 p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
1503 p_input->stream.i_mux_rate = 0;
1505 i_streams = GetDWBE( &p_peek[4] );
1506 if( input_Peek( p_input, &p_peek, 8 + 20 * i_streams )
1507 < 8 + 20 * i_streams )
1509 msg_Err( p_input, "v4l plugin discarded (cannot peek)" );
1510 return VLC_EGENERIC;
1514 for( i = 0; i < i_streams; i++ )
1516 es_descriptor_t *p_es;
1518 if( !strncmp( p_peek, "auds", 4 ) )
1520 #define wf ((WAVEFORMATEX*)p_es->p_waveformatex)
1521 p_es = input_AddES( p_input, p_input->stream.pp_programs[0],
1522 i + 1, AUDIO_ES, NULL, 0 );
1523 p_es->i_stream_id = i + 1;
1525 VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] );
1527 p_es->p_waveformatex= malloc( sizeof( WAVEFORMATEX ) );
1529 wf->wFormatTag = WAVE_FORMAT_UNKNOWN;
1530 wf->nChannels = GetDWBE( &p_peek[8] );
1531 wf->nSamplesPerSec = GetDWBE( &p_peek[12] );
1532 wf->wBitsPerSample = GetDWBE( &p_peek[16] );
1533 wf->nBlockAlign = wf->wBitsPerSample * wf->nChannels / 8;
1534 wf->nAvgBytesPerSec = wf->nBlockAlign * wf->nSamplesPerSec;
1537 msg_Dbg( p_input, "added new audio es %d channels %dHz",
1538 wf->nChannels, wf->nSamplesPerSec );
1540 input_SelectES( p_input, p_es );
1543 else if( !strncmp( p_peek, "vids", 4 ) )
1545 #define bih ((BITMAPINFOHEADER*)p_es->p_bitmapinfoheader)
1546 p_es = input_AddES( p_input, p_input->stream.pp_programs[0],
1547 i + 1, VIDEO_ES, NULL, 0 );
1548 p_es->i_stream_id = i + 1;
1550 VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] );
1552 p_es->p_bitmapinfoheader = malloc( sizeof( BITMAPINFOHEADER ) );
1554 bih->biSize = sizeof( BITMAPINFOHEADER );
1555 bih->biWidth = GetDWBE( &p_peek[8] );
1556 bih->biHeight = GetDWBE( &p_peek[12] );
1558 bih->biBitCount = 0;
1559 bih->biCompression = 0;
1560 bih->biSizeImage= 0;
1561 bih->biXPelsPerMeter = 0;
1562 bih->biYPelsPerMeter = 0;
1564 bih->biClrImportant = 0;
1566 msg_Dbg( p_input, "added new video es %4.4s %dx%d",
1567 (char*)&p_es->i_fourcc, bih->biWidth, bih->biHeight );
1569 input_SelectES( p_input, p_es );
1576 p_input->stream.p_selected_program->b_is_ok = 1;
1577 vlc_mutex_unlock( &p_input->stream.stream_lock );
1579 if( input_SplitBuffer( p_input, &p_pk, 8 + i_streams * 20 ) > 0 )
1581 input_DeletePacket( p_input->p_method_data, p_pk );
1584 p_input->pf_demux = Demux;
1585 p_input->pf_demux_control = demux_vaControlDefault;
1589 static void DemuxClose( vlc_object_t *p_this )
1594 #define MAX_PACKETS_IN_FIFO 3
1596 static int Demux( input_thread_t *p_input )
1598 es_descriptor_t *p_es;
1599 pes_packet_t *p_pes;
1607 if( input_Peek( p_input, &p_peek, 16 ) < 16 )
1609 msg_Warn( p_input, "cannot peek (EOF ?)" );
1613 i_stream = GetDWBE( &p_peek[0] );
1614 i_size = GetDWBE( &p_peek[4] );
1615 i_pts = GetQWBE( &p_peek[8] );
1617 p_es = p_input->stream.p_selected_program->pp_es[i_stream];
1620 msg_Err( p_input, "cannot find ES" );
1623 p_pes = input_NewPES( p_input->p_method_data );
1626 msg_Warn( p_input, "cannot allocate PES" );
1633 data_packet_t *p_data;
1636 if( (i_read = input_SplitBuffer( p_input, &p_data,
1637 __MIN( i_size, 10000 ) ) ) <= 0 )
1639 input_DeletePES( p_input->p_method_data, p_pes );
1642 if( !p_pes->p_first )
1644 p_pes->p_first = p_data;
1645 p_pes->i_nb_data = 1;
1646 p_pes->i_pes_size = i_read;
1650 p_pes->p_last->p_next = p_data;
1652 p_pes->i_pes_size += i_read;
1654 p_pes->p_last = p_data;
1657 p_pes->p_first->p_payload_start += 16;
1658 p_pes->i_pes_size -= 16;
1660 if( p_es && p_es->p_decoder_fifo )
1662 vlc_mutex_lock( &p_es->p_decoder_fifo->data_lock );
1663 if( p_es->p_decoder_fifo->i_depth >= MAX_PACKETS_IN_FIFO )
1665 /* Wait for the decoder. */
1666 vlc_cond_wait( &p_es->p_decoder_fifo->data_wait,
1667 &p_es->p_decoder_fifo->data_lock );
1669 vlc_mutex_unlock( &p_es->p_decoder_fifo->data_lock );
1670 p_pes->i_pts = p_pes->i_dts = i_pts + p_input->i_pts_delay;
1672 input_DecodePES( p_es->p_decoder_fifo, p_pes );
1676 input_DeletePES( p_input->p_method_data, p_pes );