* v4l.c : Video4Linux input module for vlc
*****************************************************************************
* Copyright (C) 2002 VideoLAN
- * $Id: v4l.c,v 1.3 2003/03/24 17:15:30 gbazin Exp $
+ * $Id: v4l.c,v 1.24 2003/09/07 22:49:05 fenrir Exp $
*
- * Author: Samuel Hocevar <sam@zoy.org>
+ * Author: Laurent Aimar <fenrir@via.ecp.fr>
+ * Paul Forgey <paulf at aphrodite dot com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/*****************************************************************************
* Preamble
*****************************************************************************/
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
#include <vlc/vlc.h>
#include <vlc/input.h>
+#include <vlc/vout.h>
+#include <codecs.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <errno.h>
+
#include <fcntl.h>
+#include <linux/videodev.h>
+#include "videodev_mjpeg.h"
+
+#include <sys/soundcard.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-static int V4lOpen ( vlc_object_t * );
-static void V4lClose ( vlc_object_t * );
-static int V4lRead ( input_thread_t *, byte_t *, size_t );
+static int AccessOpen ( vlc_object_t * );
+static void AccessClose ( vlc_object_t * );
+static int Read ( input_thread_t *, byte_t *, size_t );
+
+static int DemuxOpen ( vlc_object_t * );
+static void DemuxClose ( vlc_object_t * );
+static int Demux ( input_thread_t * );
+
/*****************************************************************************
* Module descriptior
*****************************************************************************/
+#define CACHING_TEXT N_("Caching value in ms")
+#define CACHING_LONGTEXT N_( \
+ "Allows you to modify the default caching value for v4l streams. This " \
+ "value should be set in miliseconds units." )
+
vlc_module_begin();
- set_description( _("Video4Linux input module") );
- set_capability( "access", 80 );
- set_callbacks( V4lOpen, V4lClose );
+ set_description( _("Video4Linux input") );
+ add_category_hint( N_("v4l"), NULL, VLC_TRUE );
+ add_integer( "v4l-caching", DEFAULT_PTS_DELAY / 1000, NULL,
+ CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
+ add_shortcut( "v4l" );
+ set_capability( "access", 10 );
+ set_callbacks( AccessOpen, AccessClose );
+
+ add_submodule();
+ set_description( _("Video4Linux demuxer") );
+ add_shortcut( "v4l" );
+ set_capability( "demux", 200 );
+ set_callbacks( DemuxOpen, DemuxClose );
vlc_module_end();
-static int i_fd;
+
+/****************************************************************************
+ * I. Access Part
+ ****************************************************************************/
+#define MJPEG_BUFFER_SIZE (256*1024)
+
+struct quicktime_mjpeg_app1
+{
+ uint32_t i_reserved; /* set to 0 */
+ uint32_t i_tag; /* 'mjpg' */
+ uint32_t i_field_size; /* offset following EOI */
+ uint32_t i_padded_field_size; /* offset following EOI+pad */
+ uint32_t i_next_field; /* offset to next field */
+ uint32_t i_DQT_offset;
+ uint32_t i_DHT_offset;
+ uint32_t i_SOF_offset;
+ uint32_t i_SOS_offset;
+ uint32_t i_data_offset; /* following SOS marker data */
+};
+
+struct access_sys_t
+{
+ char *psz_video_device;
+ int fd;
+
+ picture_t pic;
+
+ int i_fourcc;
+ int i_channel;
+ int i_audio;
+ int i_norm;
+ int i_tuner;
+ int i_frequency;
+ int i_width;
+ int i_height;
+
+ vlc_bool_t b_mjpeg;
+ int i_decimation;
+ int i_quality;
+
+ struct video_capability vid_cap;
+ struct video_mbuf vid_mbuf;
+ struct mjpeg_requestbuffers mjpeg_buffers;
+
+ uint8_t *p_video_mmap;
+ int i_frame_pos;
+
+ struct video_mmap vid_mmap;
+ struct video_picture vid_picture;
+
+ uint8_t *p_video_frame;
+ int i_video_frame_size;
+ int i_video_frame_size_allocated;
+
+ char *psz_adev;
+ int fd_audio;
+ vlc_fourcc_t i_acodec_raw;
+ int i_sample_rate;
+ vlc_bool_t b_stereo;
+
+ uint8_t *p_audio_frame;
+ int i_audio_frame_size;
+ int i_audio_frame_size_allocated;
+
+ /* header */
+ int i_header_size;
+ int i_header_pos;
+ uint8_t *p_header; // at lest 8 bytes allocated
+
+ /* data */
+ int i_data_size;
+ int i_data_pos;
+ uint8_t *p_data; // never allocated
+
+};
+
+/*
+ * header:
+ * fcc ".v4l"
+ * u32 stream count
+ * fcc "auds"|"vids" 0
+ * fcc codec 4
+ * if vids
+ * u32 width 8
+ * u32 height 12
+ * u32 padding 16
+ * if auds
+ * u32 channels 12
+ * u32 samplerate 8
+ * u32 samplesize 16
+ *
+ * data:
+ * u32 stream number
+ * u32 data size
+ * u8 data
+ */
+
+static void SetDWBE( uint8_t *p, uint32_t dw )
+{
+ p[0] = (dw >> 24)&0xff;
+ p[1] = (dw >> 16)&0xff;
+ p[2] = (dw >> 8)&0xff;
+ p[3] = (dw )&0xff;
+}
+
+static void SetQWBE( uint8_t *p, uint64_t qw )
+{
+ SetDWBE( p, (qw >> 32)&0xffffffff );
+ SetDWBE( &p[4], qw&0xffffffff);
+}
/*****************************************************************************
- * V4lOpen: open device
+ * Open: open device:
+ *****************************************************************************
+ *
+ * url: <video device>::::
+ *
*****************************************************************************/
-static int V4lOpen( vlc_object_t *p_this )
-{
- input_thread_t * p_input = (input_thread_t *)p_this;
+static int AccessOpen( vlc_object_t *p_this )
+{
+ input_thread_t *p_input = (input_thread_t *)p_this;
+ access_sys_t *p_sys;
+ char *psz_dup, *psz_parser;
+ struct mjpeg_params mjpeg;
+ int i;
+
+ struct video_channel vid_channel;
+
+ /* create access private data */
+ p_sys = malloc( sizeof( access_sys_t ) );
+ memset( p_sys, 0, sizeof( access_sys_t ) );
+
+ p_sys->psz_video_device = NULL;
+ p_sys->fd = -1;
+ p_sys->i_channel = -1;
+ p_sys->i_audio = -1;
+ p_sys->i_norm = VIDEO_MODE_AUTO; // auto
+ p_sys->i_tuner = -1;
+ p_sys->i_frequency = -1;
+ p_sys->i_width = 0;
+ p_sys->i_height = 0;
+
+ p_sys->b_mjpeg = VLC_FALSE;
+ p_sys->i_decimation = 1;
+ p_sys->i_quality = 100;
+
+ p_sys->i_frame_pos = 0;
+
+ p_sys->i_video_frame_size_allocated = 0;
+ p_sys->psz_adev = NULL;
+ p_sys->fd_audio = -1;
+ p_sys->i_sample_rate = 44100;
+ p_sys->b_stereo = VLC_TRUE;
+
+ p_sys->i_data_size = 0;
+ p_sys->i_data_pos = 0;
+ p_sys->p_data = NULL;
+
+ /* parse url and open device(s) */
+ psz_dup = strdup( p_input->psz_name );
+ psz_parser = psz_dup;
+
+ while( *psz_parser && *psz_parser != ':' )
+ {
+ psz_parser++;
+ }
+
+ if( *psz_parser == ':' )
+ {
+ /* read options */
+ for( ;; )
+ {
+ *psz_parser++ = '\0';
+ if( !strncmp( psz_parser, "channel=", strlen( "channel=" ) ) )
+ {
+ p_sys->i_channel = strtol( psz_parser + strlen( "channel=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "norm=", strlen( "norm=" ) ) )
+ {
+ psz_parser += strlen( "norm=" );
+ if( !strncmp( psz_parser, "pal", strlen( "pal" ) ) )
+ {
+ p_sys->i_norm = VIDEO_MODE_PAL;
+ psz_parser += strlen( "pal" );
+ }
+ else if( !strncmp( psz_parser, "ntsc", strlen( "ntsc" ) ) )
+ {
+ p_sys->i_norm = VIDEO_MODE_NTSC;
+ psz_parser += strlen( "ntsc" );
+ }
+ else if( !strncmp( psz_parser, "secam", strlen( "secam" ) ) )
+ {
+ p_sys->i_norm = VIDEO_MODE_SECAM;
+ psz_parser += strlen( "secam" );
+ }
+ else if( !strncmp( psz_parser, "auto", strlen( "auto" ) ) )
+ {
+ p_sys->i_norm = VIDEO_MODE_AUTO;
+ psz_parser += strlen( "auto" );
+ }
+ else
+ {
+ p_sys->i_norm = strtol( psz_parser, &psz_parser, 0 );
+ }
+ }
+ else if( !strncmp( psz_parser, "frequency=",
+ strlen( "frequency=" ) ) )
+ {
+ p_sys->i_frequency =
+ strtol( psz_parser + strlen( "frequency=" ),
+ &psz_parser, 0 );
+ if( p_sys->i_frequency < 30000 )
+ {
+ msg_Warn( p_input, "v4l syntax has changed : 'frequency' is now channel frequency in kHz");
+ }
+ }
+ else if( !strncmp( psz_parser, "audio=", strlen( "audio=" ) ) )
+ {
+ p_sys->i_audio = strtol( psz_parser + strlen( "audio=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "size=", strlen( "size=" ) ) )
+ {
+ psz_parser += strlen( "size=" );
+ if( !strncmp( psz_parser, "subqcif", strlen( "subqcif" ) ) )
+ {
+ p_sys->i_width = 128;
+ p_sys->i_height = 96;
+ }
+ else if( !strncmp( psz_parser, "qsif", strlen( "qsif" ) ) )
+ {
+ p_sys->i_width = 160;
+ p_sys->i_height = 120;
+ }
+ else if( !strncmp( psz_parser, "qcif", strlen( "qcif" ) ) )
+ {
+ p_sys->i_width = 176;
+ p_sys->i_height = 144;
+ }
+ else if( !strncmp( psz_parser, "sif", strlen( "sif" ) ) )
+ {
+ p_sys->i_width = 320;
+ p_sys->i_height = 244;
+ }
+ else if( !strncmp( psz_parser, "cif", strlen( "cif" ) ) )
+ {
+ p_sys->i_width = 352;
+ p_sys->i_height = 288;
+ }
+ else if( !strncmp( psz_parser, "vga", strlen( "vga" ) ) )
+ {
+ p_sys->i_width = 640;
+ p_sys->i_height = 480;
+ }
+ else
+ {
+ /* widthxheight */
+ p_sys->i_width = strtol( psz_parser, &psz_parser, 0 );
+ if( *psz_parser == 'x' || *psz_parser == 'X')
+ {
+ p_sys->i_height = strtol( psz_parser + 1,
+ &psz_parser, 0 );
+ }
+ msg_Dbg( p_input, "WxH %dx%d", p_sys->i_width,
+ p_sys->i_height );
+ }
+ }
+ else if( !strncmp( psz_parser, "tuner=", strlen( "tuner=" ) ) )
+ {
+ p_sys->i_tuner = strtol( psz_parser + strlen( "tuner=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "adev=", strlen( "adev=" ) ) )
+ {
+ int i_len;
+
+ psz_parser += strlen( "adev=" );
+ if( strchr( psz_parser, ':' ) )
+ {
+ i_len = strchr( psz_parser, ':' ) - psz_parser;
+ }
+ else
+ {
+ i_len = strlen( psz_parser );
+ }
+
+ p_sys->psz_adev = strndup( psz_parser, i_len );
+
+ psz_parser += i_len;
+ }
+ else if( !strncmp( psz_parser, "samplerate=",
+ strlen( "samplerate=" ) ) )
+ {
+ p_sys->i_sample_rate =
+ strtol( psz_parser + strlen( "samplerate=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "stereo", strlen( "stereo" ) ) )
+ {
+ psz_parser += strlen( "stereo" );
+
+ p_sys->b_stereo = VLC_TRUE;
+ }
+ else if( !strncmp( psz_parser, "mono", strlen( "mono" ) ) )
+ {
+ psz_parser += strlen( "mono" );
+
+ p_sys->b_stereo = VLC_FALSE;
+ }
+ else if( !strncmp( psz_parser, "mjpeg", strlen( "mjpeg" ) ) )
+ {
+ psz_parser += strlen( "mjpeg" );
+
+ p_sys->b_mjpeg = VLC_TRUE;
+ }
+ else if( !strncmp( psz_parser, "decimation=",
+ strlen( "decimation=" ) ) )
+ {
+ p_sys->i_decimation =
+ strtol( psz_parser + strlen( "decimation=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "quality=",
+ strlen( "quality=" ) ) )
+ {
+ p_sys->i_quality =
+ strtol( psz_parser + strlen( "quality=" ),
+ &psz_parser, 0 );
+ }
+ else
+ {
+ msg_Warn( p_input, "unknown option" );
+ }
+
+ while( *psz_parser && *psz_parser != ':' )
+ {
+ psz_parser++;
+ }
+
+ if( *psz_parser == '\0' )
+ {
+ break;
+ }
+ }
+ }
+
+ if( *psz_dup )
+ {
+ p_sys->psz_video_device = strdup( psz_dup );
+ }
+ else
+ {
+ p_sys->psz_video_device = strdup( "/dev/video" );
+ }
+ msg_Dbg( p_input, "video device=`%s'", p_sys->psz_video_device );
+
+ if( p_sys->psz_adev && *p_sys->psz_adev == '\0' )
+ {
+ p_sys->psz_adev = strdup( "/dev/dsp" );
+ }
+ msg_Dbg( p_input, "audio device=`%s'", p_sys->psz_adev );
+
+
+
+ if( ( p_sys->fd = open( p_sys->psz_video_device, O_RDWR ) ) < 0 )
+ {
+ msg_Err( p_input, "cannot open device (%s)", strerror( errno ) );
+ goto failed;
+ }
+
+ if( ioctl( p_sys->fd, VIDIOCGCAP, &p_sys->vid_cap ) < 0 )
+ {
+ msg_Err( p_input, "cannot get capabilities (%s)", strerror( errno ) );
+ goto failed;
+ }
+
+ msg_Dbg( p_input,
+ "V4L device %s %d channels %d audios %d < w < %d %d < h < %d",
+ p_sys->vid_cap.name,
+ p_sys->vid_cap.channels,
+ p_sys->vid_cap.audios,
+ p_sys->vid_cap.minwidth, p_sys->vid_cap.maxwidth,
+ p_sys->vid_cap.minheight, p_sys->vid_cap.maxheight );
+
+ if( p_sys->i_channel < 0 || p_sys->i_channel >= p_sys->vid_cap.channels )
+ {
+ msg_Dbg( p_input, "invalid channel, falling back on channel 0" );
+ p_sys->i_channel = 0;
+ }
+ if( p_sys->i_audio >= p_sys->vid_cap.audios )
+ {
+ msg_Dbg( p_input, "invalid audio, falling back with no audio" );
+ p_sys->i_audio = -1;
+ }
+
+ if( p_sys->i_width < p_sys->vid_cap.minwidth ||
+ p_sys->i_width > p_sys->vid_cap.maxwidth )
+ {
+ msg_Dbg( p_input, "invalid width %i", p_sys->i_width );
+ p_sys->i_width = 0;
+ }
+ if( p_sys->i_height < p_sys->vid_cap.minheight ||
+ p_sys->i_height > p_sys->vid_cap.maxheight )
+ {
+ msg_Dbg( p_input, "invalid height %i", p_sys->i_height );
+ p_sys->i_height = 0;
+ }
+
+ if( !( p_sys->vid_cap.type & VID_TYPE_CAPTURE ) )
+ {
+ msg_Err( p_input, "cannot grab" );
+ goto failed;
+ }
+
+ vid_channel.channel = p_sys->i_channel;
+ if( ioctl( p_sys->fd, VIDIOCGCHAN, &vid_channel ) < 0 )
+ {
+ msg_Err( p_input, "cannot get channel infos (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+ msg_Dbg( p_input,
+ "setting channel %s(%d) %d tuners flags=0x%x type=0x%x norm=0x%x",
+ vid_channel.name,
+ vid_channel.channel,
+ vid_channel.tuners,
+ vid_channel.flags,
+ vid_channel.type,
+ vid_channel.norm );
+
+ if( p_sys->i_tuner >= vid_channel.tuners )
+ {
+ msg_Dbg( p_input, "invalid tuner, falling back on tuner 0" );
+ p_sys->i_tuner = 0;
+ }
+
+ vid_channel.norm = p_sys->i_norm;
+ if( ioctl( p_sys->fd, VIDIOCSCHAN, &vid_channel ) < 0 )
+ {
+ msg_Err( p_input, "cannot set channel (%s)", strerror( errno ) );
+ goto failed;
+ }
+
+ if( vid_channel.flags & VIDEO_VC_TUNER )
+ {
+
+ /* set tuner */
+#if 0
+ struct video_tuner vid_tuner;
+ if( p_sys->i_tuner >= 0 )
+ {
+ vid_tuner.tuner = p_sys->i_tuner;
+ if( ioctl( p_sys->fd, VIDIOCGTUNER, &vid_tuner ) < 0 )
+ {
+ msg_Err( p_input, "cannot get tuner (%s)", strerror( errno ) );
+ goto failed;
+ }
+ msg_Dbg( p_input, "tuner %s low=%d high=%d, flags=0x%x "
+ "mode=0x%x signal=0x%x",
+ vid_tuner.name, vid_tuner.rangelow, vid_tuner.rangehigh,
+ vid_tuner.flags, vid_tuner.mode, vid_tuner.signal );
+
+ msg_Dbg( p_input, "setting tuner %s (%d)",
+ vid_tuner.name, vid_tuner.tuner );
+
+ //vid_tuner.mode = p_sys->i_norm; /* FIXME FIXME to be checked FIXME FIXME */
+ if( ioctl( p_sys->fd, VIDIOCSTUNER, &vid_tuner ) < 0 )
+ {
+ msg_Err( p_input, "cannot set tuner (%s)", strerror( errno ) );
+ goto failed;
+ }
+ }
+#endif
+
+ // show a warning if frequency is < than 30000. User is certainly usint old syntax.
+
+
+ /* set frequency */
+ if( p_sys->i_frequency >= 0 )
+ {
+ int driver_frequency = p_sys->i_frequency * 16 /1000;
+ if( ioctl( p_sys->fd, VIDIOCSFREQ, &driver_frequency ) < 0 )
+ {
+ msg_Err( p_input, "cannot set frequency (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+ msg_Dbg( p_input, "frequency %d (%d)", p_sys->i_frequency,
+ driver_frequency );
+ }
+ }
+
+ /* set audio */
+ if( vid_channel.flags & VIDEO_VC_AUDIO )
+ {
+ struct video_audio vid_audio;
+
+ /* XXX TODO volume, balance, ... */
+ if( p_sys->i_audio >= 0 )
+ {
+ vid_audio.audio = p_sys->i_audio;
+ if( ioctl( p_sys->fd, VIDIOCGAUDIO, &vid_audio ) < 0 )
+ {
+ msg_Err( p_input, "cannot get audio (%s)", strerror( errno ) );
+ goto failed;
+ }
+
+ /* unmute audio */
+ vid_audio.flags &= ~VIDEO_AUDIO_MUTE;
- p_input->pf_read = V4lRead;
- p_input->pf_seek = NULL;
- p_input->pf_set_area = NULL;
+ if( ioctl( p_sys->fd, VIDIOCSAUDIO, &vid_audio ) < 0 )
+ {
+ msg_Err( p_input, "cannot set audio (%s)", strerror( errno ) );
+ goto failed;
+ }
+ }
+
+ }
+
+ if( p_sys->psz_adev )
+ {
+ int i_format;
+ if( ( p_sys->fd_audio = open( p_sys->psz_adev, O_RDONLY|O_NONBLOCK ) ) < 0 )
+ {
+ msg_Err( p_input, "cannot open audio device (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+
+ i_format = AFMT_S16_LE;
+ if( ioctl( p_sys->fd_audio, SNDCTL_DSP_SETFMT, &i_format ) < 0
+ || i_format != AFMT_S16_LE )
+ {
+ msg_Err( p_input, "cannot set audio format (16b little endian) "
+ "(%s)", strerror( errno ) );
+ goto failed;
+ }
+
+ if( ioctl( p_sys->fd_audio, SNDCTL_DSP_STEREO,
+ &p_sys->b_stereo ) < 0 )
+ {
+ msg_Err( p_input, "cannot set audio channels count (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+
+ if( ioctl( p_sys->fd_audio, SNDCTL_DSP_SPEED,
+ &p_sys->i_sample_rate ) < 0 )
+ {
+ msg_Err( p_input, "cannot set audio sample rate (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+
+ msg_Dbg( p_input,
+ "adev=`%s' %s %dHz",
+ p_sys->psz_adev,
+ p_sys->b_stereo ? "stereo" : "mono",
+ p_sys->i_sample_rate );
+
+ p_sys->i_audio_frame_size = 0;
+ p_sys->i_audio_frame_size_allocated = 6*1024;
+ p_sys->p_audio_frame =
+ malloc( p_sys->i_audio_frame_size_allocated );
+ }
+
+ /* establish basic params with input and norm before feeling width
+ * or height */
+ if( p_sys->b_mjpeg )
+ {
+ struct quicktime_mjpeg_app1 *p_app1;
+ int32_t i_offset;
+
+ if( ioctl( p_sys->fd, MJPIOC_G_PARAMS, &mjpeg ) < 0 )
+ {
+ msg_Err( p_input, "cannot get mjpeg params (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+ mjpeg.input = p_sys->i_channel;
+ mjpeg.norm = p_sys->i_norm;
+ mjpeg.decimation = p_sys->i_decimation;
+
+ if( p_sys->i_width )
+ mjpeg.img_width = p_sys->i_width / p_sys->i_decimation;
+ if( p_sys->i_height )
+ mjpeg.img_height = p_sys->i_height / p_sys->i_decimation;
+
+ /* establish Quicktime APP1 marker while we are here */
+ mjpeg.APPn = 1;
+ mjpeg.APP_len = 40;
+
+ /* aligned */
+ p_app1 = (struct quicktime_mjpeg_app1 *)mjpeg.APP_data;
+ p_app1->i_reserved = 0;
+ p_app1->i_tag = VLC_FOURCC( 'm','j','p','g' );
+ p_app1->i_field_size = 0;
+ p_app1->i_padded_field_size = 0;
+ p_app1->i_next_field = 0;
+ /* XXX WARNING XXX */
+ /* these's nothing magic about these values. We are dangerously
+ * assuming the encoder card is encoding mjpeg-a and is not throwing
+ * in marker tags we aren't expecting. It's bad enough we have to
+ * search through the jpeg output for every frame we grab just to
+ * find the first field's end marker, so we take this risk to boost
+ * performance.
+ * This is really something the driver could do for us because this
+ * does conform to standards outside of Apple Quicktime.
+ */
+ i_offset = 0x2e;
+ p_app1->i_DQT_offset = hton32( i_offset );
+ i_offset = 0xb4;
+ p_app1->i_DHT_offset = hton32( i_offset );
+ i_offset = 0x258;
+ p_app1->i_SOF_offset = hton32( i_offset );
+ i_offset = 0x26b;
+ p_app1->i_SOS_offset = hton32( i_offset );
+ i_offset = 0x279;
+ p_app1->i_data_offset = hton32( i_offset );
+
+ /* SOF and SOS aren't specified by the mjpeg API because they aren't
+ * optional. They will be present in the output. */
+ mjpeg.jpeg_markers = JPEG_MARKER_DHT | JPEG_MARKER_DQT;
+
+ if( ioctl( p_sys->fd, MJPIOC_S_PARAMS, &mjpeg ) < 0 )
+ {
+ msg_Err( p_input, "cannot set mjpeg params (%s)",
+ strerror( errno ) );
+ goto failed;
+ }
+
+ p_sys->i_width = mjpeg.img_width * mjpeg.HorDcm;
+ p_sys->i_height = mjpeg.img_height * mjpeg.VerDcm *
+ mjpeg.field_per_buff;
+ }
+
+ /* fix width/height */
+ if( !p_sys->b_mjpeg && ( p_sys->i_width == 0 || p_sys->i_height == 0 ) )
+ {
+ struct video_window vid_win;
+
+ if( ioctl( p_sys->fd, VIDIOCGWIN, &vid_win ) < 0 )
+ {
+ msg_Err( p_input, "cannot get win (%s)", strerror( errno ) );
+ goto failed;
+ }
+ p_sys->i_width = vid_win.width;
+ p_sys->i_height = vid_win.height;
+
+ msg_Dbg( p_input, "will use %dx%d", p_sys->i_width, p_sys->i_height );
+ }
+
+ p_sys->p_video_frame = NULL;
+
+ if( !p_sys->b_mjpeg )
+ {
+ /* Find out video format used by device */
+ if( ioctl( p_sys->fd, VIDIOCGPICT, &p_sys->vid_picture ) == 0 )
+ {
+ int i_chroma = VLC_FOURCC( ' ', ' ', ' ', ' ' );
+ struct video_picture vid_picture = p_sys->vid_picture;
+
+ /* Try to set the format to something easy to encode */
+ vid_picture.palette = VIDEO_PALETTE_YUV420P;
+ if( ioctl( p_sys->fd, VIDIOCSPICT, &vid_picture ) == 0 )
+ {
+ p_sys->vid_picture = vid_picture;
+ }
+ else
+ {
+ vid_picture.palette = VIDEO_PALETTE_YUV422P;
+ if( ioctl( p_sys->fd, VIDIOCSPICT, &vid_picture ) == 0 )
+ {
+ p_sys->vid_picture = vid_picture;
+ }
+ }
+
+ /* Find out final format */
+ switch( p_sys->vid_picture.palette )
+ {
+ case VIDEO_PALETTE_GREY:
+ i_chroma = VLC_FOURCC( 'G', 'R', 'E', 'Y' );
+ break;
+ case VIDEO_PALETTE_HI240:
+ i_chroma = VLC_FOURCC( 'I', '2', '4', '0' );
+ break;
+ case VIDEO_PALETTE_RGB565:
+ i_chroma = VLC_FOURCC( 'R', 'V', '1', '6' );
+ break;
+ case VIDEO_PALETTE_RGB555:
+ i_chroma = VLC_FOURCC( 'R', 'V', '1', '5' );
+ break;
+ case VIDEO_PALETTE_RGB24:
+ i_chroma = VLC_FOURCC( 'R', 'V', '2', '4' );
+ break;
+ case VIDEO_PALETTE_RGB32:
+ i_chroma = VLC_FOURCC( 'R', 'V', '3', '2' );
+ break;
+ case VIDEO_PALETTE_YUV422:
+ i_chroma = VLC_FOURCC( 'I', '4', '2', '2' );
+ break;
+ case VIDEO_PALETTE_YUYV:
+ i_chroma = VLC_FOURCC( 'Y', 'U', 'Y', 'V' );
+ break;
+ case VIDEO_PALETTE_UYVY:
+ i_chroma = VLC_FOURCC( 'U', 'Y', 'V', 'Y' );
+ break;
+ case VIDEO_PALETTE_YUV420:
+ i_chroma = VLC_FOURCC( 'I', '4', '2', 'N' );
+ break;
+ case VIDEO_PALETTE_YUV411:
+ i_chroma = VLC_FOURCC( 'I', '4', '1', 'N' );
+ break;
+ case VIDEO_PALETTE_RAW:
+ i_chroma = VLC_FOURCC( 'G', 'R', 'A', 'W' );
+ break;
+ case VIDEO_PALETTE_YUV422P:
+ i_chroma = VLC_FOURCC( 'I', '4', '2', '2' );
+ break;
+ case VIDEO_PALETTE_YUV420P:
+ i_chroma = VLC_FOURCC( 'I', '4', '2', '0' );
+ break;
+ case VIDEO_PALETTE_YUV411P:
+ i_chroma = VLC_FOURCC( 'I', '4', '1', '1' );
+ break;
+ }
+ p_sys->i_fourcc = i_chroma;
+ }
+ else
+ {
+ msg_Err( p_input, "ioctl VIDIOCGPICT failed" );
+ goto failed;
+ }
+ }
+
+
+ if( p_sys->b_mjpeg )
+ {
+ int i;
+
+ p_sys->mjpeg_buffers.count = 8;
+ p_sys->mjpeg_buffers.size = MJPEG_BUFFER_SIZE;
+
+ if( ioctl( p_sys->fd, MJPIOC_REQBUFS, &p_sys->mjpeg_buffers ) < 0 )
+ {
+ msg_Err( p_input, "mmap unsupported" );
+ goto failed;
+ }
+
+ p_sys->p_video_mmap = mmap( 0,
+ p_sys->mjpeg_buffers.size * p_sys->mjpeg_buffers.count,
+ PROT_READ | PROT_WRITE, MAP_SHARED, p_sys->fd, 0 );
+ if( p_sys->p_video_mmap == MAP_FAILED )
+ {
+ msg_Err( p_input, "mmap failed" );
+ goto failed;
+ }
+
+ p_sys->i_fourcc = VLC_FOURCC( 'm','j','p','g' );
+ p_sys->i_frame_pos = -1;
+
+ /* queue up all the frames */
+ for( i = 0; i < (int)p_sys->mjpeg_buffers.count; i++ )
+ {
+ if( ioctl( p_sys->fd, MJPIOC_QBUF_CAPT, &i ) < 0 )
+ {
+ msg_Err( p_input, "unable to queue frame" );
+ goto failed;
+ }
+ }
+ }
+ else
+ {
+ /* Fill in picture_t fields */
+ vout_InitPicture( VLC_OBJECT(p_input), &p_sys->pic,
+ p_sys->i_width, p_sys->i_height, p_sys->i_fourcc );
+ if( !p_sys->pic.i_planes )
+ {
+ msg_Err( p_input, "unsupported chroma" );
+ goto failed;
+ }
+ p_sys->i_video_frame_size = 0;
+ for( i = 0; i < p_sys->pic.i_planes; i++ )
+ {
+ p_sys->i_video_frame_size += p_sys->pic.p[i].i_lines *
+ p_sys->pic.p[i].i_visible_pitch;
+ }
+
+ msg_Dbg( p_input, "v4l device uses frame size: %i",
+ p_sys->i_video_frame_size );
+ msg_Dbg( p_input, "v4l device uses chroma: %4.4s",
+ (char*)&p_sys->i_fourcc );
+
+ /* Allocate mmap buffer */
+ if( ioctl( p_sys->fd, VIDIOCGMBUF, &p_sys->vid_mbuf ) < 0 )
+ {
+ msg_Err( p_input, "mmap unsupported" );
+ goto failed;
+ }
+
+ p_sys->p_video_mmap = mmap( 0, p_sys->vid_mbuf.size,
+ PROT_READ|PROT_WRITE, MAP_SHARED,
+ p_sys->fd, 0 );
+ if( p_sys->p_video_mmap == MAP_FAILED )
+ {
+ /* FIXME -> normal read */
+ msg_Err( p_input, "mmap failed" );
+ goto failed;
+ }
+
+ /* init grabbing */
+ p_sys->vid_mmap.frame = 0;
+ p_sys->vid_mmap.width = p_sys->i_width;
+ p_sys->vid_mmap.height = p_sys->i_height;
+ p_sys->vid_mmap.format = p_sys->vid_picture.palette;
+ if( ioctl( p_sys->fd, VIDIOCMCAPTURE, &p_sys->vid_mmap ) < 0 )
+ {
+ msg_Warn( p_input, "%4.4s refused", (char*)&p_sys->i_fourcc );
+ msg_Err( p_input, "chroma selection failed" );
+ goto failed;
+ }
+ }
+
+ p_input->pf_read = Read;
+ p_input->pf_seek = NULL;
+ p_input->pf_set_area = NULL;
p_input->pf_set_program = NULL;
+ p_input->p_access_data = p_sys;
+
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.b_pace_control = 0;
p_input->stream.b_seekable = 0;
p_input->stream.i_method = INPUT_METHOD_FILE;
vlc_mutex_unlock( &p_input->stream.stream_lock );
- i_fd = open( "/dev/v4l/video0", O_RDWR );
+ /* Update default_pts to a suitable value for access */
+ p_input->i_pts_delay = config_GetInt( p_input, "v4l-caching" ) * 1000;
+
+ msg_Info( p_input, "v4l grabbing started" );
+
+ /* create header */
+ p_sys->i_header_size = 8 + 20;
+ p_sys->i_header_pos = 0;
+ p_sys->p_header = malloc( p_sys->i_header_size );
+
+ memcpy( &p_sys->p_header[0], ".v4l", 4 );
+ SetDWBE( &p_sys->p_header[4], 1 );
+
+ memcpy( &p_sys->p_header[ 8], "vids", 4 );
+ memcpy( &p_sys->p_header[12], &p_sys->i_fourcc, 4 );
+ SetDWBE( &p_sys->p_header[16], p_sys->i_width );
+ SetDWBE( &p_sys->p_header[20], p_sys->i_height );
+ SetDWBE( &p_sys->p_header[24], 0 );
- return 0;
+ if( p_sys->fd_audio > 0 )
+ {
+ p_sys->i_header_size += 20;
+ p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header_size );
+
+ SetDWBE( &p_sys->p_header[4], 2 );
+
+ memcpy( &p_sys->p_header[28], "auds", 4 );
+ memcpy( &p_sys->p_header[32], "araw", 4 );
+ SetDWBE( &p_sys->p_header[36], p_sys->b_stereo ? 2 : 1 );
+ SetDWBE( &p_sys->p_header[40], p_sys->i_sample_rate );
+ SetDWBE( &p_sys->p_header[44], 16 );
+ }
+ return VLC_SUCCESS;
+
+failed:
+ free( p_sys->psz_video_device );
+ if( p_sys->fd >= 0 )
+ {
+ close( p_sys->fd );
+ }
+ free( p_sys );
+ return VLC_EGENERIC;
}
/*****************************************************************************
* V4lClose: close device
*****************************************************************************/
-static void V4lClose( vlc_object_t *p_this )
+static void AccessClose( vlc_object_t *p_this )
{
- input_thread_t * p_input = (input_thread_t *)p_this;
- //thread_data_t *p_data = (thread_data_t *)p_input->p_access_data;
+ input_thread_t *p_input = (input_thread_t *)p_this;
+ access_sys_t *p_sys = p_input->p_access_data;
+
+ msg_Info( p_input, "v4l grabbing stoped" );
+
+ if( p_sys->b_mjpeg )
+ {
+ int i_noframe = -1;
+ ioctl( p_sys->fd, MJPIOC_QBUF_CAPT, &i_noframe );
+ }
+
+ free( p_sys->psz_video_device );
+ close( p_sys->fd );
+ if( p_sys->p_video_mmap && p_sys->p_video_mmap != MAP_FAILED )
+ {
+ if( p_sys->b_mjpeg )
+ munmap( p_sys->p_video_mmap, p_sys->mjpeg_buffers.size *
+ p_sys->mjpeg_buffers.count );
+ else
+ munmap( p_sys->p_video_mmap, p_sys->vid_mbuf.size );
+ }
+ if( p_sys->fd_audio >= 0 )
+ {
+ close( p_sys->fd_audio );
+ }
+
+ free( p_sys );
+}
+
+static int GrabAudio( input_thread_t * p_input,
+ uint8_t **pp_data,
+ int *pi_data,
+ mtime_t *pi_pts )
+{
+ access_sys_t *p_sys = p_input->p_access_data;
+ struct audio_buf_info buf_info;
+ int i_read;
+ int i_correct;
+
+ i_read = read( p_sys->fd_audio, p_sys->p_audio_frame,
+ p_sys->i_audio_frame_size_allocated );
+
+ if( i_read <= 0 )
+ {
+ return VLC_EGENERIC;
+ }
+
+ p_sys->i_audio_frame_size = i_read;
+
+ /* from vls : correct the date because of kernel buffering */
+ i_correct = i_read;
+ if( ioctl( p_sys->fd_audio, SNDCTL_DSP_GETISPACE, &buf_info ) == 0 )
+ {
+ i_correct += buf_info.bytes;
+ }
+
- //close( p_data->i_handle );
- close( i_fd );
- //free( p_data );
+ *pp_data = p_sys->p_audio_frame;
+ *pi_data = p_sys->i_audio_frame_size;
+ *pi_pts = mdate() - (mtime_t)1000000 * (mtime_t)i_correct /
+ 2 / ( p_sys->b_stereo ? 2 : 1) / p_sys->i_sample_rate;
+ return VLC_SUCCESS;
+}
+
+static uint8_t *GrabCapture( input_thread_t *p_input )
+{
+ access_sys_t *p_sys = p_input->p_access_data;
+ p_sys->vid_mmap.frame = ( p_sys->i_frame_pos + 1 ) %
+ p_sys->vid_mbuf.frames;
+ for( ;; )
+ {
+ if( ioctl( p_sys->fd, VIDIOCMCAPTURE, &p_sys->vid_mmap ) >= 0 )
+ {
+ break;
+ }
+
+ if( errno != EAGAIN )
+ {
+ msg_Err( p_input, "failed while grabbing new frame" );
+ return( NULL );
+ }
+ msg_Dbg( p_input, "another try ?" );
+ }
+
+ //msg_Warn( p_input, "grab a new frame" );
+
+ while( ioctl(p_sys->fd, VIDIOCSYNC, &p_sys->i_frame_pos) < 0 &&
+ ( errno == EAGAIN || errno == EINTR ) );
+
+ p_sys->i_frame_pos = p_sys->vid_mmap.frame;
+ /* leave i_video_frame_size alone */
+ return p_sys->p_video_mmap + p_sys->vid_mbuf.offsets[p_sys->i_frame_pos];
+}
+
+static uint8_t *GrabMJPEG( input_thread_t *p_input )
+{
+ access_sys_t *p_sys = p_input->p_access_data;
+ struct mjpeg_sync sync;
+ uint8_t *p_frame, *p_field, *p;
+ uint16_t tag;
+ uint32_t i_size;
+ struct quicktime_mjpeg_app1 *p_app1 = NULL;
+
+ /* re-queue the last frame we sync'd */
+ if( p_sys->i_frame_pos != -1 )
+ while( ioctl( p_sys->fd, MJPIOC_QBUF_CAPT, &p_sys->i_frame_pos ) < 0 &&
+ ( errno == EAGAIN || errno == EINTR ) );
+
+ /* sync on the next frame */
+ while( ioctl( p_sys->fd, MJPIOC_SYNC, &sync ) < 0 &&
+ ( errno == EAGAIN || errno == EINTR ) );
+
+ p_sys->i_frame_pos = sync.frame;
+ p_frame = p_sys->p_video_mmap + p_sys->mjpeg_buffers.size * sync.frame;
+
+ /* p_frame now points to the data. fix up the Quicktime APP1 marker */
+ tag = 0xffd9;
+ tag = hton16( tag );
+ p_field = p_frame;
+
+ /* look for EOI */
+ p = memmem( p_field, sync.length, &tag, 2 );
+
+ if( p )
+ {
+ p += 2; /* data immediately following EOI */
+ /* UNALIGNED! */
+ p_app1 = (struct quicktime_mjpeg_app1 *)(p_field + 6);
+
+ i_size = ((uint32_t)(p - p_field));
+ i_size = hton32( i_size );
+ memcpy( &p_app1->i_field_size, &i_size, 4 );
+
+ while( *p == 0xff && *(p+1) == 0xff )
+ p++;
+
+ i_size = ((uint32_t)(p - p_field));
+ i_size = hton32( i_size );
+ memcpy( &p_app1->i_padded_field_size, &i_size, 4 );
+ }
+
+ tag = 0xffd8;
+ tag = hton16( tag );
+ p_field = memmem( p, sync.length - (size_t)(p - p_frame), &tag, 2 );
+
+ if( p_field )
+ {
+ i_size = (uint32_t)(p_field - p_frame);
+ i_size = hton32( i_size );
+ memcpy( &p_app1->i_next_field, &i_size, 4 );
+
+ /* UNALIGNED! */
+ p_app1 = (struct quicktime_mjpeg_app1 *)(p_field + 6);
+ tag = 0xffd9;
+ tag = hton16( tag );
+ p = memmem( p_field, sync.length - (size_t)(p_field - p_frame),
+ &tag, 2 );
+
+ if( !p )
+ {
+ /* sometimes the second field doesn't have the EOI. just put it
+ * there
+ */
+ p = p_frame + sync.length;
+ memcpy( p, &tag, 2 );
+ sync.length += 2;
+ }
+
+ p += 2;
+ i_size = (uint32_t)(p - p_field);
+ i_size = hton32( i_size );
+ memcpy( &p_app1->i_field_size, &i_size, 4 );
+ i_size = (uint32_t)(sync.length - (uint32_t)(p_field - p_frame));
+ i_size = hton32( i_size );
+ memcpy( &p_app1->i_padded_field_size, &i_size, 4 );
+ }
+
+ p_sys->i_video_frame_size = sync.length;
+ return p_frame;
+}
+
+static int GrabVideo( input_thread_t * p_input,
+ uint8_t **pp_data,
+ int *pi_data,
+ mtime_t *pi_pts )
+{
+ access_sys_t *p_sys = p_input->p_access_data;
+ uint8_t *p_frame;
+
+ if( p_sys->b_mjpeg )
+ p_frame = GrabMJPEG( p_input );
+ else
+ p_frame = GrabCapture( p_input );
+
+ if( !p_frame )
+ return -1;
+
+ p_sys->p_video_frame = p_frame;
+
+ *pp_data = p_sys->p_video_frame;
+ *pi_data = p_sys->i_video_frame_size;
+ *pi_pts = mdate();
+ return VLC_SUCCESS;
}
/*****************************************************************************
- * V4lRead: reads from the device into PES packets.
+ * Read: reads from the device into PES packets.
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, otherwise the number of
* bytes.
*****************************************************************************/
-#define WIDTH 640
-#define HEIGHT 480
+static int Read( input_thread_t * p_input, byte_t * p_buffer, size_t i_len )
+{
+ access_sys_t *p_sys = p_input->p_access_data;
+ int i_data = 0;
+ int i_stream;
+ mtime_t i_pts;
-static int V4lRead( input_thread_t * p_input, byte_t * p_buffer,
- size_t i_len )
-{
- struct video_capability vid_caps;
- struct video_mbuf vid_buf;
- struct video_mmap vid_mmap;
+ //msg_Info( p_input, "access read data_size %i, data_pos %i",
+ //p_sys->i_data_size, p_sys->i_data_pos );
+ while( i_len > 0 )
+ {
+ /* First copy header if any */
+ if( i_len > 0 && p_sys->i_header_pos < p_sys->i_header_size )
+ {
+ int i_copy;
+
+ i_copy = __MIN( p_sys->i_header_size - p_sys->i_header_pos,
+ (int)i_len );
+ memcpy( p_buffer, &p_sys->p_header[p_sys->i_header_pos], i_copy );
+ p_sys->i_header_pos += i_copy;
+
+ p_buffer += i_copy;
+ i_len -= i_copy;
+ i_data += i_copy;
+ }
+
+ /* then data */
+ if( i_len > 0 && p_sys->i_data_pos < p_sys->i_data_size )
+ {
+ int i_copy;
+
+ i_copy = __MIN( p_sys->i_data_size - p_sys->i_data_pos,
+ (int)i_len );
+
+ memcpy( p_buffer, &p_sys->p_data[p_sys->i_data_pos], i_copy );
+ p_sys->i_data_pos += i_copy;
+
+ p_buffer += i_copy;
+ i_len -= i_copy;
+ i_data += i_copy;
+ }
+
+ /* The caller got what he wanted */
+ if( i_len <= 0 )
+ {
+ return( i_data );
+ }
+
+ /* Read no more than one frame at a time.
+ * That kills latency, especially for encoded v4l streams */
+ if( p_sys->i_data_size && p_sys->i_data_pos == p_sys->i_data_size )
+ {
+ p_sys->i_data_pos = 0; p_sys->i_data_size = 0;
+ return( i_data );
+ }
+
+ /* re fill data by grabbing audio/video */
+ p_sys->i_data_pos = 0;
+
+ /* try grabbing audio frames */
+ i_stream = 1;
+ if( p_sys->fd_audio < 0 ||
+ GrabAudio( p_input, &p_sys->p_data, &p_sys->i_data_size, &i_pts ) )
+ {
+ /* and then get video frame if no audio */
+ i_stream = 0;
+ if( GrabVideo( p_input, &p_sys->p_data, &p_sys->i_data_size, &i_pts ) )
+ {
+ return -1;
+ }
+ }
+
+ /* create pseudo header */
+ p_sys->i_header_size = 16;
+ p_sys->i_header_pos = 0;
+ SetDWBE( &p_sys->p_header[0], i_stream );
+ SetDWBE( &p_sys->p_header[4], p_sys->i_data_size );
+ SetQWBE( &p_sys->p_header[8], i_pts );
+ }
+
+ return i_data;
+}
+
+/****************************************************************************
+ * I. Demux Part
+ ****************************************************************************/
+#define MAX_PACKETS_IN_FIFO 3
+
+static int DemuxOpen( vlc_object_t *p_this )
+{
+ input_thread_t *p_input = (input_thread_t *)p_this;
+ //demux_sys_t *p_sys;
+
+ uint8_t *p_peek;
+ int i_streams;
+ int i;
+
+ data_packet_t *p_pk;
- char *map = NULL;
+ /* Initialize access plug-in structures. */
+ if( p_input->i_mtu == 0 )
+ {
+ /* Improve speed. */
+ p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE ;
+ }
- //thread_data_t * p_data;
- int i_read = 0;
+ /* a little test to see if it's a v4l stream */
+ if( input_Peek( p_input, &p_peek, 8 ) < 8 )
+ {
+ msg_Warn( p_input, "v4l plugin discarded (cannot peek)" );
+ return( VLC_EGENERIC );
+ }
- if( ioctl( i_fd, VIDIOCGCAP, &vid_caps ) == -1 )
+ if( strncmp( p_peek, ".v4l", 4 ) || GetDWBE( &p_peek[4] ) <= 0 )
{
- printf("ioctl (VIDIOCGCAP) failed\n");
- return 0;
+ msg_Warn( p_input, "v4l plugin discarded (not a valid stream)" );
+ return VLC_EGENERIC;
}
- if( ioctl( i_fd, VIDIOCGMBUF, &vid_buf ) == -1 )
+ /* create one program */
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ if( input_InitStream( p_input, 0 ) == -1)
{
- // to do a normal read()
- map = malloc (WIDTH * HEIGHT * 3);
- len = read (fd_webcam, map, WIDTH * HEIGHT * 3);
- if (len <= 0)
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ msg_Err( p_input, "cannot init stream" );
+ return( VLC_EGENERIC );
+ }
+ if( input_AddProgram( p_input, 0, 0) == NULL )
+ {
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ msg_Err( p_input, "cannot add program" );
+ return( VLC_EGENERIC );
+ }
+
+ p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
+ p_input->stream.i_mux_rate = 0;
+
+ i_streams = GetDWBE( &p_peek[4] );
+ if( input_Peek( p_input, &p_peek, 8 + 20 * i_streams )
+ < 8 + 20 * i_streams )
+ {
+ msg_Err( p_input, "v4l plugin discarded (cannot peek)" );
+ return( VLC_EGENERIC );
+ }
+ p_peek += 8;
+
+ for( i = 0; i < i_streams; i++ )
+ {
+ es_descriptor_t *p_es;
+
+ if( !strncmp( p_peek, "auds", 4 ) )
+ {
+#define wf ((WAVEFORMATEX*)p_es->p_waveformatex)
+ p_es = input_AddES( p_input, p_input->stream.pp_programs[0],
+ i + 1, AUDIO_ES, NULL, 0 );
+ p_es->i_stream_id = i + 1;
+ p_es->i_fourcc =
+ VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] );
+
+ p_es->p_waveformatex= malloc( sizeof( WAVEFORMATEX ) );
+
+ wf->wFormatTag = WAVE_FORMAT_UNKNOWN;
+ wf->nChannels = GetDWBE( &p_peek[8] );
+ wf->nSamplesPerSec = GetDWBE( &p_peek[12] );
+ wf->wBitsPerSample = GetDWBE( &p_peek[16] );
+ wf->nBlockAlign = wf->wBitsPerSample * wf->nChannels / 8;
+ wf->nAvgBytesPerSec = wf->nBlockAlign * wf->nSamplesPerSec;
+ wf->cbSize = 0;
+
+ msg_Dbg( p_input, "added new audio es %d channels %dHz",
+ wf->nChannels, wf->nSamplesPerSec );
+
+ input_SelectES( p_input, p_es );
+#undef wf
+ }
+ else if( !strncmp( p_peek, "vids", 4 ) )
{
- free (map);
- return (NULL);
+#define bih ((BITMAPINFOHEADER*)p_es->p_bitmapinfoheader)
+ p_es = input_AddES( p_input, p_input->stream.pp_programs[0],
+ i + 1, VIDEO_ES, NULL, 0 );
+ p_es->i_stream_id = i + 1;
+ p_es->i_fourcc =
+ VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] );
+
+ p_es->p_bitmapinfoheader = malloc( sizeof( BITMAPINFOHEADER ) );
+
+ bih->biSize = sizeof( BITMAPINFOHEADER );
+ bih->biWidth = GetDWBE( &p_peek[8] );
+ bih->biHeight = GetDWBE( &p_peek[12] );
+ bih->biPlanes = 0;
+ bih->biBitCount = 0;
+ bih->biCompression = 0;
+ bih->biSizeImage= 0;
+ bih->biXPelsPerMeter = 0;
+ bih->biYPelsPerMeter = 0;
+ bih->biClrUsed = 0;
+ bih->biClrImportant = 0;
+
+ msg_Dbg( p_input, "added new video es %4.4s %dx%d",
+ (char*)&p_es->i_fourcc, bih->biWidth, bih->biHeight );
+
+ input_SelectES( p_input, p_es );
+#undef bih
}
- *size = 0;
- return (map);
+
+ p_peek += 20;
}
- //p_data = (thread_data_t *)p_input->p_access_data;
- return i_read;
+ p_input->stream.p_selected_program->b_is_ok = 1;
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+
+ if( input_SplitBuffer( p_input, &p_pk, 8 + i_streams * 20 ) > 0 )
+ {
+ input_DeletePacket( p_input->p_method_data, p_pk );
+ }
+
+ p_input->pf_demux = Demux;
+ p_input->pf_demux_control = demux_vaControlDefault;
+ return VLC_SUCCESS;
+}
+
+static void DemuxClose( vlc_object_t *p_this )
+{
+ return;
}
+static int Demux( input_thread_t *p_input )
+{
+ es_descriptor_t *p_es;
+ pes_packet_t *p_pes;
+
+ int i_stream;
+ int i_size;
+ uint8_t *p_peek;
+ mtime_t i_pts;
+
+ if( input_Peek( p_input, &p_peek, 16 ) < 16 )
+ {
+ msg_Warn( p_input, "cannot peek (EOF ?)" );
+ return( 0 );
+ }
+
+ i_stream = GetDWBE( &p_peek[0] );
+ i_size = GetDWBE( &p_peek[4] );
+ i_pts = GetQWBE( &p_peek[8] );
+
+ //msg_Dbg( p_input, "stream=%d size=%d", i_stream, i_size );
+// p_es = input_FindES( p_input, i_stream );
+ p_es = p_input->stream.p_selected_program->pp_es[i_stream];
+ if( !p_es )
+ {
+ msg_Err( p_input, "cannot find ES" );
+ }
+
+ p_pes = input_NewPES( p_input->p_method_data );
+ if( p_pes == NULL )
+ {
+ msg_Warn( p_input, "cannot allocate PES" );
+ msleep( 1000 );
+ return( 1 );
+ }
+ i_size += 16;
+ while( i_size > 0 )
+ {
+ data_packet_t *p_data;
+ int i_read;
+
+ if( (i_read = input_SplitBuffer( p_input, &p_data,
+ __MIN( i_size, 10000 ) ) ) <= 0 )
+ {
+ input_DeletePES( p_input->p_method_data, p_pes );
+ return( 0 );
+ }
+ if( !p_pes->p_first )
+ {
+ p_pes->p_first = p_data;
+ p_pes->i_nb_data = 1;
+ p_pes->i_pes_size = i_read;
+ }
+ else
+ {
+ p_pes->p_last->p_next = p_data;
+ p_pes->i_nb_data++;
+ p_pes->i_pes_size += i_read;
+ }
+ p_pes->p_last = p_data;
+ i_size -= i_read;
+ }
+// input_SplitBuffer( p_input, &p_pk, i_size + 8 );
+ p_pes->p_first->p_payload_start += 16;
+ p_pes->i_pes_size -= 16;
+ if( p_es && p_es->p_decoder_fifo )
+ {
+ vlc_mutex_lock( &p_es->p_decoder_fifo->data_lock );
+ if( p_es->p_decoder_fifo->i_depth >= MAX_PACKETS_IN_FIFO )
+ {
+ /* Wait for the decoder. */
+ vlc_cond_wait( &p_es->p_decoder_fifo->data_wait,
+ &p_es->p_decoder_fifo->data_lock );
+ }
+ vlc_mutex_unlock( &p_es->p_decoder_fifo->data_lock );
+ //p_pes->i_pts = mdate() + p_input->i_pts_delay;
+ p_pes->i_pts = p_pes->i_dts = i_pts + p_input->i_pts_delay;
+ input_DecodePES( p_es->p_decoder_fifo, p_pes );
+ }
+ else
+ {
+ input_DeletePES( p_input->p_method_data, p_pes );
+ }
+
+ return 1;
+}
projects / vlc / blobdiff