/*****************************************************************************
* v4l.c : Video4Linux input module for vlc
*****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: v4l.c,v 1.28 2003/11/06 00:12:17 gbazin Exp $
+ * Copyright (C) 2002-2004 VideoLAN
+ * $Id$
*
* Author: Laurent Aimar <fenrir@via.ecp.fr>
* Paul Forgey <paulf at aphrodite dot com>
- * Gildas Bazin <gbazin@netcourrier.com>
+ * Gildas Bazin <gbazin@videolan.org>
*
* 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
#include <unistd.h>
#include <sys/mman.h>
#include <errno.h>
-
#include <fcntl.h>
+
+/* From GStreamer's v4l plugin:
+ * Because of some really cool feature in video4linux1, also known as
+ * 'not including sys/types.h and sys/time.h', we had to include it
+ * ourselves. In all their intelligence, these people decided to fix
+ * this in the next version (video4linux2) in such a cool way that it
+ * breaks all compilations of old stuff...
+ * The real problem is actually that linux/time.h doesn't use proper
+ * macro checks before defining types like struct timeval. The proper
+ * fix here is to either fuck the kernel header (which is what we do
+ * by defining _LINUX_TIME_H, an innocent little hack) or by fixing it
+ * upstream, which I'll consider doing later on. If you get compiler
+ * errors here, check your linux/time.h && sys/time.h header setup.
+*/
+#define _LINUX_TIME_H
+
#include <linux/videodev.h>
#include "videodev_mjpeg.h"
#include <sys/soundcard.h>
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int AccessOpen ( vlc_object_t * );
-static void AccessClose ( vlc_object_t * );
-static int Read ( input_thread_t *, byte_t *, size_t );
-
-static void ParseMRL ( input_thread_t * );
-static int OpenVideoDev( input_thread_t *, char * );
-static int OpenAudioDev( input_thread_t *, char * );
-
-static int DemuxOpen ( vlc_object_t * );
-static void DemuxClose ( vlc_object_t * );
-static int Demux ( input_thread_t * );
-
/*****************************************************************************
* Module descriptior
*****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
+
#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." )
+ "value should be set in millisecond units." )
#define VDEV_TEXT N_("Video device name")
#define VDEV_LONGTEXT N_( \
"Specify the name of the video device that will be used. " \
#define ADEV_TEXT N_("Audio device name")
#define ADEV_LONGTEXT N_( \
"Specify the name of the audio device that will be used. " \
- "If you don't specify anything, no video device will be used.")
+ "If you don't specify anything, no audio device will be used.")
+#define CHROMA_TEXT N_("Video input chroma format")
+#define CHROMA_LONGTEXT N_( \
+ "Force the Video4Linux video device to use a specific chroma format " \
+ "(eg. I420 (default), RV24, etc.)")
vlc_module_begin();
+ set_shortname( _("Video4Linux") );
set_description( _("Video4Linux input") );
- add_category_hint( N_("v4l"), NULL, VLC_TRUE );
+ set_category( CAT_INPUT );
+ set_subcategory( SUBCAT_INPUT_ACCESS );
+
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_string( "v4l-vdev", "/dev/video", 0, VDEV_TEXT, VDEV_LONGTEXT,
VLC_FALSE );
add_string( "v4l-adev", "/dev/dsp", 0, ADEV_TEXT, ADEV_LONGTEXT,
VLC_FALSE );
+ add_string( "v4l-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
+ VLC_TRUE );
- add_submodule();
- set_description( _("Video4Linux demuxer") );
- add_shortcut( "v4l" );
- set_capability( "demux", 200 );
- set_callbacks( DemuxOpen, DemuxClose );
+ add_shortcut( "v4l" );
+ set_capability( "access_demux", 10 );
+ set_callbacks( Open, Close );
vlc_module_end();
+/*****************************************************************************
+ * Access: local prototypes
+ *****************************************************************************/
+static int Demux ( demux_t * );
+static int Control( demux_t *, int, va_list );
+
+static void ParseMRL ( demux_t * );
+static int OpenVideoDev( demux_t *, char * );
+static int OpenAudioDev( demux_t *, char * );
+
+static block_t *GrabAudio( demux_t * );
+static block_t *GrabVideo( demux_t * );
-/****************************************************************************
- * I. Access Part
- ****************************************************************************/
#define MJPEG_BUFFER_SIZE (256*1024)
struct quicktime_mjpeg_app1
uint32_t i_data_offset; /* following SOS marker data */
};
-struct access_sys_t
+static struct
+{
+ int i_v4l;
+ int i_fourcc;
+
+} v4lchroma_to_fourcc[] =
+{
+ { VIDEO_PALETTE_GREY, VLC_FOURCC( 'G', 'R', 'E', 'Y' ) },
+ { VIDEO_PALETTE_HI240, VLC_FOURCC( 'I', '2', '4', '0' ) },
+ { VIDEO_PALETTE_RGB565, VLC_FOURCC( 'R', 'V', '1', '6' ) },
+ { VIDEO_PALETTE_RGB555, VLC_FOURCC( 'R', 'V', '1', '5' ) },
+ { VIDEO_PALETTE_RGB24, VLC_FOURCC( 'R', 'V', '2', '4' ) },
+ { VIDEO_PALETTE_RGB32, VLC_FOURCC( 'R', 'V', '3', '2' ) },
+ { VIDEO_PALETTE_YUV422, VLC_FOURCC( 'I', '4', '2', '2' ) },
+ { VIDEO_PALETTE_YUYV, VLC_FOURCC( 'Y', 'U', 'Y', 'V' ) },
+ { VIDEO_PALETTE_UYVY, VLC_FOURCC( 'U', 'Y', 'V', 'Y' ) },
+ { VIDEO_PALETTE_YUV420, VLC_FOURCC( 'I', '4', '2', 'N' ) },
+ { VIDEO_PALETTE_YUV411, VLC_FOURCC( 'I', '4', '1', 'N' ) },
+ { VIDEO_PALETTE_RAW, VLC_FOURCC( 'G', 'R', 'A', 'W' ) },
+ { VIDEO_PALETTE_YUV422P, VLC_FOURCC( 'I', '4', '2', '2' ) },
+ { VIDEO_PALETTE_YUV420P, VLC_FOURCC( 'I', '4', '2', '0' ) },
+ { VIDEO_PALETTE_YUV411P, VLC_FOURCC( 'I', '4', '1', '1' ) },
+ { 0, 0 }
+};
+
+struct demux_sys_t
{
/* Devices */
char *psz_device; /* Main device from MRL, can be video or audio */
int i_width;
int i_height;
+ int i_brightness;
+ int i_hue;
+ int i_colour;
+ int i_contrast;
+
float f_fps; /* <= 0.0 mean to grab at full rate */
mtime_t i_video_pts; /* only used when f_fps > 0 */
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;
+ int i_video_frame_size;
+ es_out_id_t *p_es_video;
/* Audio properties */
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_streams;
- 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
-
+ int i_audio_max_frame_size;
+ block_t *p_block_audio;
+ es_out_id_t *p_es_audio;
};
-/*
- * 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);
-}
-
/*****************************************************************************
- * AccessOpen: opens v4l device
+ * Open: opens v4l device
*****************************************************************************
*
* url: <video device>::::
*
*****************************************************************************/
-static int AccessOpen( vlc_object_t *p_this )
+static int Open( vlc_object_t *p_this )
{
- input_thread_t *p_input = (input_thread_t *)p_this;
- access_sys_t *p_sys;
- vlc_value_t val;
+ demux_t *p_demux = (demux_t*)p_this;
+ demux_sys_t *p_sys;
- /* create access private data */
- p_input->p_access_data = p_sys = malloc( sizeof( access_sys_t ) );
- memset( p_sys, 0, sizeof( access_sys_t ) );
+ /* Only when selected */
+ if( *p_demux->psz_access == '\0' )
+ return VLC_EGENERIC;
+
+ /* Set up p_demux */
+ p_demux->pf_demux = Demux;
+ p_demux->pf_control = Control;
+ p_demux->info.i_update = 0;
+ p_demux->info.i_title = 0;
+ p_demux->info.i_seekpoint = 0;
+ p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
+ memset( p_sys, 0, sizeof( demux_sys_t ) );
p_sys->i_audio = -1;
p_sys->i_norm = VIDEO_MODE_AUTO; // auto
p_sys->f_fps = -1.0;
p_sys->i_video_pts = -1;
+ p_sys->i_brightness = -1;
+ p_sys->i_hue = -1;
+ p_sys->i_colour = -1;
+ p_sys->i_contrast = -1;
+
p_sys->b_mjpeg = VLC_FALSE;
p_sys->i_decimation = 1;
p_sys->i_quality = 100;
- p_sys->i_video_frame_size_allocated = 0;
- p_sys->i_frame_pos = 0;
-
- p_sys->p_audio_frame = 0;
p_sys->i_sample_rate = 44100;
p_sys->b_stereo = VLC_TRUE;
- p_sys->p_header = NULL;
- p_sys->i_data_size = 0;
- p_sys->i_data_pos = 0;
- p_sys->p_data = NULL;
-
p_sys->psz_device = p_sys->psz_vdev = p_sys->psz_adev = NULL;
p_sys->fd_video = -1;
p_sys->fd_audio = -1;
- ParseMRL( p_input );
+ p_sys->p_es_video = p_sys->p_es_audio = 0;
+ p_sys->p_block_audio = 0;
+
+ ParseMRL( p_demux );
/* Find main device (video or audio) */
if( p_sys->psz_device && *p_sys->psz_device )
{
- msg_Dbg( p_input, "main device=`%s'", p_sys->psz_device );
+ msg_Dbg( p_demux, "main device=`%s'", p_sys->psz_device );
/* Try to open as video device */
- p_sys->fd_video = OpenVideoDev( p_input, p_sys->psz_device );
+ p_sys->fd_video = OpenVideoDev( p_demux, p_sys->psz_device );
if( p_sys->fd_video < 0 )
{
/* Try to open as audio device */
- p_sys->fd_audio = OpenAudioDev( p_input, p_sys->psz_device );
+ p_sys->fd_audio = OpenAudioDev( p_demux, p_sys->psz_device );
if( p_sys->fd_audio >= 0 )
{
if( p_sys->psz_adev ) free( p_sys->psz_adev );
/* If no device opened, only continue if the access was forced */
if( p_sys->fd_video < 0 && p_sys->fd_audio < 0 )
{
- if( !p_input->psz_access ||
- strcmp( p_input->psz_access, "v4l" ) )
+ if( strcmp( p_demux->psz_access, "v4l" ) )
{
- AccessClose( p_this );
+ Close( p_this );
return VLC_EGENERIC;
}
}
{
if( !p_sys->psz_vdev || !*p_sys->psz_vdev )
{
- var_Create( p_input, "v4l-vdev",
- VLC_VAR_STRING | VLC_VAR_DOINHERIT );
- var_Get( p_input, "v4l-vdev", &val );
-
if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
- p_sys->psz_vdev = val.psz_string;
+ p_sys->psz_vdev = var_CreateGetString( p_demux, "v4l-vdev" );;
}
if( p_sys->psz_vdev && *p_sys->psz_vdev )
{
- p_sys->fd_video = OpenVideoDev( p_input, p_sys->psz_vdev );
+ p_sys->fd_video = OpenVideoDev( p_demux, p_sys->psz_vdev );
}
}
{
if( !p_sys->psz_adev || !*p_sys->psz_adev )
{
- var_Create( p_input, "v4l-adev",
- VLC_VAR_STRING | VLC_VAR_DOINHERIT );
- var_Get( p_input, "v4l-adev", &val );
-
if( p_sys->psz_adev ) free( p_sys->psz_adev );
- p_sys->psz_adev = val.psz_string;
+ p_sys->psz_adev = var_CreateGetString( p_demux, "v4l-adev" );;
}
if( p_sys->psz_adev && *p_sys->psz_adev )
{
- p_sys->fd_audio = OpenAudioDev( p_input, p_sys->psz_adev );
+ p_sys->fd_audio = OpenAudioDev( p_demux, p_sys->psz_adev );
}
}
if( p_sys->fd_video < 0 && p_sys->fd_audio < 0 )
{
- AccessClose( p_this );
+ Close( p_this );
return VLC_EGENERIC;
}
- p_input->pf_read = Read;
- p_input->pf_seek = NULL;
- p_input->pf_set_area = NULL;
- p_input->pf_set_program = NULL;
+ msg_Dbg( p_demux, "v4l grabbing started" );
- vlc_mutex_lock( &p_input->stream.stream_lock );
- p_input->stream.b_pace_control = 0;
- p_input->stream.b_seekable = 0;
- p_input->stream.p_selected_area->i_size = 0;
- p_input->stream.p_selected_area->i_tell = 0;
- p_input->stream.i_method = INPUT_METHOD_FILE;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
+ /* Declare elementary streams */
+ if( p_sys->fd_video >= 0 )
+ {
+ es_format_t fmt;
+ es_format_Init( &fmt, VIDEO_ES, p_sys->i_fourcc );
+ fmt.video.i_width = p_sys->i_width;
+ fmt.video.i_height = p_sys->i_height;
+ fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
+
+ /* Setup rgb mask for RGB formats */
+ if( p_sys->i_fourcc == VLC_FOURCC('R','V','2','4') )
+ {
+ /* This is in BGR format */
+ fmt.video.i_bmask = 0x00ff0000;
+ fmt.video.i_gmask = 0x0000ff00;
+ fmt.video.i_rmask = 0x000000ff;
+ }
+
+ msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
+ (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
+ p_sys->p_es_video = es_out_Add( p_demux->out, &fmt );
+ }
+
+ if( p_sys->fd_audio >= 0 )
+ {
+ es_format_t fmt;
+ es_format_Init( &fmt, AUDIO_ES, VLC_FOURCC('a','r','a','w') );
+
+ fmt.audio.i_channels = p_sys->b_stereo ? 2 : 1;
+ fmt.audio.i_rate = p_sys->i_sample_rate;
+ fmt.audio.i_bitspersample = 16; // FIXME ?
+ fmt.audio.i_blockalign = fmt.audio.i_channels *
+ fmt.audio.i_bitspersample / 8;
+ fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
+ fmt.audio.i_bitspersample;
+
+ msg_Dbg( p_demux, "new audio es %d channels %dHz",
+ fmt.audio.i_channels, fmt.audio.i_rate );
+
+ p_sys->p_es_audio = es_out_Add( p_demux->out, &fmt );
+ }
/* Update default_pts to a suitable value for access */
- var_Create( p_input, "v4l-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
- var_Get( p_input, "v4l-caching", &val );
- p_input->i_pts_delay = val.i_int * 1000;
+ var_Create( p_demux, "v4l-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- msg_Info( p_input, "v4l grabbing started" );
+ return VLC_SUCCESS;
+}
- /* create header */
- p_sys->i_streams = 0;
- p_sys->i_header_size = 8;
- p_sys->i_header_pos = 8;
- p_sys->p_header = malloc( p_sys->i_header_size );
+/*****************************************************************************
+ * Close: close device, free resources
+ *****************************************************************************/
+static void Close( vlc_object_t *p_this )
+{
+ demux_t *p_demux = (demux_t *)p_this;
+ demux_sys_t *p_sys = p_demux->p_sys;
- memcpy( p_sys->p_header, ".v4l", 4 );
+ if( p_sys->psz_device ) free( p_sys->psz_device );
+ if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
+ if( p_sys->psz_adev ) free( p_sys->psz_adev );
+ if( p_sys->fd_video >= 0 ) close( p_sys->fd_video );
+ if( p_sys->fd_audio >= 0 ) close( p_sys->fd_audio );
+ if( p_sys->p_block_audio ) block_Release( p_sys->p_block_audio );
- if( p_sys->fd_video >= 0 )
+ if( p_sys->b_mjpeg )
{
- p_sys->i_header_size += 20;
- p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header_size );
+ int i_noframe = -1;
+ ioctl( p_sys->fd_video, MJPIOC_QBUF_CAPT, &i_noframe );
+ }
- SetDWBE( &p_sys->p_header[4], ++p_sys->i_streams );
+ 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 );
+ }
- memcpy( &p_sys->p_header[p_sys->i_header_pos], "vids", 4 );
- memcpy( &p_sys->p_header[p_sys->i_header_pos+4],
- &p_sys->i_fourcc, 4 );
- SetDWBE( &p_sys->p_header[p_sys->i_header_pos+8], p_sys->i_width );
- SetDWBE( &p_sys->p_header[p_sys->i_header_pos+12], p_sys->i_height );
- SetDWBE( &p_sys->p_header[p_sys->i_header_pos+16], 0 );
+ free( p_sys );
+}
- p_sys->i_header_pos = p_sys->i_header_size;
- }
+/*****************************************************************************
+ * Control:
+ *****************************************************************************/
+static int Control( demux_t *p_demux, int i_query, va_list args )
+{
+ vlc_bool_t *pb;
+ int64_t *pi64;
- if( p_sys->fd_audio >= 0 )
+ switch( i_query )
{
- p_sys->i_header_size += 20;
- p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header_size );
+ /* Special for access_demux */
+ case DEMUX_CAN_PAUSE:
+ case DEMUX_SET_PAUSE_STATE:
+ case DEMUX_CAN_CONTROL_PACE:
+ pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
+ *pb = VLC_FALSE;
+ return VLC_SUCCESS;
+
+ case DEMUX_GET_PTS_DELAY:
+ pi64 = (int64_t*)va_arg( args, int64_t * );
+ *pi64 = (int64_t)var_GetInteger( p_demux, "v4l-caching" ) * 1000;
+ return VLC_SUCCESS;
+
+ case DEMUX_GET_TIME:
+ pi64 = (int64_t*)va_arg( args, int64_t * );
+ *pi64 = mdate();
+ return VLC_SUCCESS;
+
+ /* TODO implement others */
+ default:
+ return VLC_EGENERIC;
+ }
- SetDWBE( &p_sys->p_header[4], ++p_sys->i_streams );
+ return VLC_EGENERIC;
+}
- memcpy( &p_sys->p_header[p_sys->i_header_pos], "auds", 4 );
- memcpy( &p_sys->p_header[p_sys->i_header_pos+4], "araw", 4 );
- SetDWBE( &p_sys->p_header[p_sys->i_header_pos+8],
- p_sys->b_stereo ? 2 : 1 );
- SetDWBE( &p_sys->p_header[p_sys->i_header_pos+12],
- p_sys->i_sample_rate );
- SetDWBE( &p_sys->p_header[p_sys->i_header_pos+16], 16 );
+/*****************************************************************************
+ * Demux:
+ *****************************************************************************/
+static int Demux( demux_t *p_demux )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ es_out_id_t *p_es = p_sys->p_es_audio;
+ block_t *p_block = NULL;
- p_sys->i_header_pos = p_sys->i_header_size;
+ /* Try grabbing audio frames first */
+ if( p_sys->fd_audio < 0 || !( p_block = GrabAudio( p_demux ) ) )
+ {
+ /* Try grabbing video frame */
+ p_es = p_sys->p_es_video;
+ if( p_sys->fd_video > 0 ) p_block = GrabVideo( p_demux );
}
- p_sys->i_header_pos = 0;
- return VLC_SUCCESS;
+ if( !p_block )
+ {
+ /* Sleep so we do not consume all the cpu, 10ms seems
+ * like a good value (100fps) */
+ msleep( 10000 );
+ return 1;
+ }
+
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
+ es_out_Send( p_demux->out, p_es, p_block );
+
+ return 1;
}
/*****************************************************************************
* ParseMRL: parse the options contained in the MRL
*****************************************************************************/
-static void ParseMRL( input_thread_t *p_input )
+static void ParseMRL( demux_t *p_demux )
{
- access_sys_t *p_sys = p_input->p_access_data;
+ demux_sys_t *p_sys = p_demux->p_sys;
- char *psz_dup = strdup( p_input->psz_name );
+ char *psz_dup = strdup( p_demux->psz_path );
char *psz_parser = psz_dup;
while( *psz_parser && *psz_parser != ':' )
&psz_parser, 0 );
if( p_sys->i_frequency < 30000 )
{
- msg_Warn( p_input, "v4l syntax has changed : "
+ msg_Warn( p_demux, "v4l syntax has changed : "
"'frequency' is now channel frequency in kHz");
}
}
p_sys->i_height = strtol( psz_parser + 1,
&psz_parser, 0 );
}
- msg_Dbg( p_input, "WxH %dx%d", p_sys->i_width,
+ msg_Dbg( p_demux, "WxH %dx%d", p_sys->i_width,
p_sys->i_height );
}
}
+ else if( !strncmp( psz_parser, "brightness=", strlen( "brightness=" ) ) )
+ {
+ p_sys->i_brightness = strtol( psz_parser + strlen( "brightness=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "colour=", strlen( "colour=" ) ) )
+ {
+ p_sys->i_colour = strtol( psz_parser + strlen( "colour=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "hue=", strlen( "hue=" ) ) )
+ {
+ p_sys->i_hue = strtol( psz_parser + strlen( "hue=" ),
+ &psz_parser, 0 );
+ }
+ else if( !strncmp( psz_parser, "contrast=", strlen( "contrast=" ) ) )
+ {
+ p_sys->i_contrast = strtol( psz_parser + strlen( "contrast=" ),
+ &psz_parser, 0 );
+ }
else if( !strncmp( psz_parser, "tuner=", strlen( "tuner=" ) ) )
{
p_sys->i_tuner = strtol( psz_parser + strlen( "tuner=" ),
}
else
{
- msg_Warn( p_input, "unknown option" );
+ msg_Warn( p_demux, "unknown option" );
}
while( *psz_parser && *psz_parser != ':' )
{
p_sys->psz_device = strdup( psz_dup );
}
+ if( psz_dup ) free( psz_dup );
}
/*****************************************************************************
* OpenVideoDev:
*****************************************************************************/
-int OpenVideoDev( input_thread_t *p_input, char *psz_device )
+static int OpenVideoDev( demux_t *p_demux, char *psz_device )
{
- access_sys_t *p_sys = p_input->p_access_data;
+ demux_sys_t *p_sys = p_demux->p_sys;
int i_fd;
struct video_channel vid_channel;
if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
{
- msg_Err( p_input, "cannot open device (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot open device (%s)", strerror( errno ) );
goto vdev_failed;
}
if( ioctl( i_fd, VIDIOCGCAP, &p_sys->vid_cap ) < 0 )
{
- msg_Err( p_input, "cannot get capabilities (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot get capabilities (%s)", strerror( errno ) );
goto vdev_failed;
}
- msg_Dbg( p_input,
+ msg_Dbg( p_demux,
"V4L device %s %d channels %d audios %d < w < %d %d < h < %d",
p_sys->vid_cap.name,
p_sys->vid_cap.channels,
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" );
+ msg_Dbg( p_demux, "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" );
+ msg_Dbg( p_demux, "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 );
+ msg_Dbg( p_demux, "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 );
+ msg_Dbg( p_demux, "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" );
+ msg_Err( p_demux, "cannot grab" );
goto vdev_failed;
}
vid_channel.channel = p_sys->i_channel;
if( ioctl( i_fd, VIDIOCGCHAN, &vid_channel ) < 0 )
{
- msg_Err( p_input, "cannot get channel infos (%s)",
+ msg_Err( p_demux, "cannot get channel infos (%s)",
strerror( errno ) );
goto vdev_failed;
}
- msg_Dbg( p_input,
+ msg_Dbg( p_demux,
"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 );
+ 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" );
+ msg_Dbg( p_demux, "invalid tuner, falling back on tuner 0" );
p_sys->i_tuner = 0;
}
vid_channel.norm = p_sys->i_norm;
if( ioctl( i_fd, VIDIOCSCHAN, &vid_channel ) < 0 )
{
- msg_Err( p_input, "cannot set channel (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot set channel (%s)", strerror( errno ) );
goto vdev_failed;
}
vid_tuner.tuner = p_sys->i_tuner;
if( ioctl( i_fd, VIDIOCGTUNER, &vid_tuner ) < 0 )
{
- msg_Err( p_input, "cannot get tuner (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot get tuner (%s)", strerror( errno ) );
goto vdev_failed;
}
- msg_Dbg( p_input, "tuner %s low=%d high=%d, flags=0x%x "
+ msg_Dbg( p_demux, "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)",
+ msg_Dbg( p_demux, "setting tuner %s (%d)",
vid_tuner.name, vid_tuner.tuner );
/* FIXME FIXME to be checked FIXME FIXME */
//vid_tuner.mode = p_sys->i_norm;
if( ioctl( i_fd, VIDIOCSTUNER, &vid_tuner ) < 0 )
{
- msg_Err( p_input, "cannot set tuner (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot set tuner (%s)", strerror( errno ) );
goto vdev_failed;
}
}
int driver_frequency = p_sys->i_frequency * 16 /1000;
if( ioctl( i_fd, VIDIOCSFREQ, &driver_frequency ) < 0 )
{
- msg_Err( p_input, "cannot set frequency (%s)",
+ msg_Err( p_demux, "cannot set frequency (%s)",
strerror( errno ) );
goto vdev_failed;
}
- msg_Dbg( p_input, "frequency %d (%d)", p_sys->i_frequency,
+ msg_Dbg( p_demux, "frequency %d (%d)", p_sys->i_frequency,
driver_frequency );
}
}
vid_audio.audio = p_sys->i_audio;
if( ioctl( i_fd, VIDIOCGAUDIO, &vid_audio ) < 0 )
{
- msg_Err( p_input, "cannot get audio (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot get audio (%s)", strerror( errno ) );
goto vdev_failed;
}
if( ioctl( i_fd, VIDIOCSAUDIO, &vid_audio ) < 0 )
{
- msg_Err( p_input, "cannot set audio (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot set audio (%s)", strerror( errno ) );
goto vdev_failed;
}
}
if( ioctl( i_fd, MJPIOC_G_PARAMS, &mjpeg ) < 0 )
{
- msg_Err( p_input, "cannot get mjpeg params (%s)",
+ msg_Err( p_demux, "cannot get mjpeg params (%s)",
strerror( errno ) );
goto vdev_failed;
}
if( ioctl( i_fd, MJPIOC_S_PARAMS, &mjpeg ) < 0 )
{
- msg_Err( p_input, "cannot set mjpeg params (%s)",
+ msg_Err( p_demux, "cannot set mjpeg params (%s)",
strerror( errno ) );
goto vdev_failed;
}
if( ioctl( i_fd, VIDIOCGWIN, &vid_win ) < 0 )
{
- msg_Err( p_input, "cannot get win (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot get win (%s)", strerror( errno ) );
goto vdev_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 );
+ msg_Dbg( p_demux, "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 */
+ /* set hue/color/.. */
if( ioctl( i_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( p_sys->i_brightness >= 0 && p_sys->i_brightness < 65536 )
+ {
+ vid_picture.brightness = p_sys->i_brightness;
+ }
+ if( p_sys->i_colour >= 0 && p_sys->i_colour < 65536 )
+ {
+ vid_picture.colour = p_sys->i_colour;
+ }
+ if( p_sys->i_hue >= 0 && p_sys->i_hue < 65536 )
+ {
+ vid_picture.hue = p_sys->i_hue;
+ }
+ if( p_sys->i_contrast >= 0 && p_sys->i_contrast < 65536 )
+ {
+ vid_picture.contrast = p_sys->i_contrast;
+ }
if( ioctl( i_fd, VIDIOCSPICT, &vid_picture ) == 0 )
+ {
+ msg_Dbg( p_demux, "v4l device uses brightness: %d",
+ vid_picture.brightness );
+ msg_Dbg( p_demux, "v4l device uses colour: %d",
+ vid_picture.colour );
+ msg_Dbg( p_demux, "v4l device uses hue: %d", vid_picture.hue );
+ msg_Dbg( p_demux, "v4l device uses contrast: %d",
+ vid_picture.contrast );
+ p_sys->vid_picture = vid_picture;
+ }
+ }
+
+ /* Find out video format used by device */
+ if( ioctl( i_fd, VIDIOCGPICT, &p_sys->vid_picture ) == 0 )
+ {
+ struct video_picture vid_picture = p_sys->vid_picture;
+ char *psz;
+ int i;
+
+ vid_picture.palette = 0;
+ p_sys->i_fourcc = 0;
+
+ psz = var_CreateGetString( p_demux, "v4l-chroma" );
+ if( strlen( psz ) >= 4 )
+ {
+ int i_chroma = VLC_FOURCC( psz[0], psz[1], psz[2], psz[3] );
+
+ /* Find out v4l chroma code */
+ for( i = 0; v4lchroma_to_fourcc[i].i_v4l != 0; i++ )
+ {
+ if( v4lchroma_to_fourcc[i].i_fourcc == i_chroma )
+ {
+ vid_picture.palette = v4lchroma_to_fourcc[i].i_v4l;
+ break;
+ }
+ }
+ }
+ free( psz );
+
+ if( vid_picture.palette &&
+ !ioctl( i_fd, VIDIOCSPICT, &vid_picture ) )
{
p_sys->vid_picture = vid_picture;
}
else
{
- vid_picture.palette = VIDEO_PALETTE_YUV422P;
+ /* Try to set the format to something easy to encode */
+ vid_picture.palette = VIDEO_PALETTE_YUV420P;
if( ioctl( i_fd, VIDIOCSPICT, &vid_picture ) == 0 )
{
p_sys->vid_picture = vid_picture;
}
+ else
+ {
+ vid_picture.palette = VIDEO_PALETTE_YUV422P;
+ if( ioctl( i_fd, VIDIOCSPICT, &vid_picture ) == 0 )
+ {
+ p_sys->vid_picture = vid_picture;
+ }
+ }
}
/* Find out final format */
- switch( p_sys->vid_picture.palette )
+ for( i = 0; v4lchroma_to_fourcc[i].i_v4l != 0; i++ )
{
- 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;
+ if( v4lchroma_to_fourcc[i].i_v4l == p_sys->vid_picture.palette)
+ {
+ p_sys->i_fourcc = v4lchroma_to_fourcc[i].i_fourcc;
+ break;
+ }
}
- p_sys->i_fourcc = i_chroma;
}
else
{
- msg_Err( p_input, "ioctl VIDIOCGPICT failed" );
+ msg_Err( p_demux, "ioctl VIDIOCGPICT failed" );
goto vdev_failed;
}
}
if( ioctl( i_fd, MJPIOC_REQBUFS, &p_sys->mjpeg_buffers ) < 0 )
{
- msg_Err( p_input, "mmap unsupported" );
+ msg_Err( p_demux, "mmap unsupported" );
goto vdev_failed;
}
PROT_READ | PROT_WRITE, MAP_SHARED, i_fd, 0 );
if( p_sys->p_video_mmap == MAP_FAILED )
{
- msg_Err( p_input, "mmap failed" );
+ msg_Err( p_demux, "mmap failed" );
goto vdev_failed;
}
{
if( ioctl( i_fd, MJPIOC_QBUF_CAPT, &i ) < 0 )
{
- msg_Err( p_input, "unable to queue frame" );
+ msg_Err( p_demux, "unable to queue frame" );
goto vdev_failed;
}
}
else
{
/* Fill in picture_t fields */
- vout_InitPicture( VLC_OBJECT(p_input), &p_sys->pic, p_sys->i_fourcc,
+ vout_InitPicture( VLC_OBJECT(p_demux), &p_sys->pic, p_sys->i_fourcc,
p_sys->i_width, p_sys->i_height, p_sys->i_width *
VOUT_ASPECT_FACTOR / p_sys->i_height );
if( !p_sys->pic.i_planes )
{
- msg_Err( p_input, "unsupported chroma" );
+ msg_Err( p_demux, "unsupported chroma" );
goto vdev_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->i_video_frame_size += p_sys->pic.p[i].i_visible_lines *
p_sys->pic.p[i].i_visible_pitch;
}
- msg_Dbg( p_input, "v4l device uses frame size: %i",
+ msg_Dbg( p_demux, "v4l device uses frame size: %i",
p_sys->i_video_frame_size );
- msg_Dbg( p_input, "v4l device uses chroma: %4.4s",
+ msg_Dbg( p_demux, "v4l device uses chroma: %4.4s",
(char*)&p_sys->i_fourcc );
/* Allocate mmap buffer */
if( ioctl( i_fd, VIDIOCGMBUF, &p_sys->vid_mbuf ) < 0 )
{
- msg_Err( p_input, "mmap unsupported" );
+ msg_Err( p_demux, "mmap unsupported" );
goto vdev_failed;
}
if( p_sys->p_video_mmap == MAP_FAILED )
{
/* FIXME -> normal read */
- msg_Err( p_input, "mmap failed" );
+ msg_Err( p_demux, "mmap failed" );
goto vdev_failed;
}
p_sys->vid_mmap.format = p_sys->vid_picture.palette;
if( ioctl( i_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" );
+ msg_Warn( p_demux, "%4.4s refused", (char*)&p_sys->i_fourcc );
+ msg_Err( p_demux, "chroma selection failed" );
goto vdev_failed;
}
}
/*****************************************************************************
* OpenAudioDev:
*****************************************************************************/
-int OpenAudioDev( input_thread_t *p_input, char *psz_device )
+static int OpenAudioDev( demux_t *p_demux, char *psz_device )
{
- access_sys_t *p_sys = p_input->p_access_data;
+ demux_sys_t *p_sys = p_demux->p_sys;
int i_fd, i_format;
if( (i_fd = open( psz_device, O_RDONLY | O_NONBLOCK )) < 0 )
{
- msg_Err( p_input, "cannot open audio device (%s)", strerror( errno ) );
+ msg_Err( p_demux, "cannot open audio device (%s)", strerror( errno ) );
goto adev_fail;
}
if( ioctl( i_fd, SNDCTL_DSP_SETFMT, &i_format ) < 0
|| i_format != AFMT_S16_LE )
{
- msg_Err( p_input, "cannot set audio format (16b little endian) "
+ msg_Err( p_demux, "cannot set audio format (16b little endian) "
"(%s)", strerror( errno ) );
goto adev_fail;
}
if( ioctl( i_fd, SNDCTL_DSP_STEREO,
&p_sys->b_stereo ) < 0 )
{
- msg_Err( p_input, "cannot set audio channels count (%s)",
+ msg_Err( p_demux, "cannot set audio channels count (%s)",
strerror( errno ) );
goto adev_fail;
}
if( ioctl( i_fd, SNDCTL_DSP_SPEED,
&p_sys->i_sample_rate ) < 0 )
{
- msg_Err( p_input, "cannot set audio sample rate (%s)",
+ msg_Err( p_demux, "cannot set audio sample rate (%s)",
strerror( errno ) );
goto adev_fail;
}
- msg_Dbg( p_input, "openened adev=`%s' %s %dHz",
+ msg_Dbg( p_demux, "openened adev=`%s' %s %dHz",
psz_device, 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 );
+ p_sys->i_audio_max_frame_size = 6 * 1024;
return i_fd;
}
/*****************************************************************************
- * AccessClose: close device, free resources
+ * GrabAudio: grab audio
*****************************************************************************/
-static void AccessClose( vlc_object_t *p_this )
+static block_t *GrabAudio( demux_t *p_demux )
{
- input_thread_t *p_input = (input_thread_t *)p_this;
- access_sys_t *p_sys = p_input->p_access_data;
-
- if( p_sys->psz_device ) free( p_sys->psz_device );
- if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
- if( p_sys->psz_adev ) free( p_sys->psz_adev );
- if( p_sys->fd_video >= 0 ) close( p_sys->fd_video );
- if( p_sys->fd_audio >= 0 ) close( p_sys->fd_audio );
+ demux_sys_t *p_sys = p_demux->p_sys;
+ struct audio_buf_info buf_info;
+ int i_read, i_correct;
+ block_t *p_block;
- if( p_sys->p_header ) free( p_sys->p_header );
- if( p_sys->p_audio_frame ) free( p_sys->p_audio_frame );
+ if( p_sys->p_block_audio ) p_block = p_sys->p_block_audio;
+ else p_block = block_New( p_demux, p_sys->i_audio_max_frame_size );
- if( p_sys->b_mjpeg )
+ if( !p_block )
{
- int i_noframe = -1;
- ioctl( p_sys->fd_video, MJPIOC_QBUF_CAPT, &i_noframe );
+ msg_Warn( p_demux, "cannot get block" );
+ return 0;
}
- 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 );
- }
-
- free( p_sys );
-}
-
-/*****************************************************************************
- * GrabAudio: grab audio
- *****************************************************************************/
-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;
+ p_sys->p_block_audio = p_block;
- i_read = read( p_sys->fd_audio, p_sys->p_audio_frame,
- p_sys->i_audio_frame_size_allocated );
+ i_read = read( p_sys->fd_audio, p_block->p_buffer,
+ p_sys->i_audio_max_frame_size );
- if( i_read <= 0 )
- {
- return VLC_EGENERIC;
- }
+ if( i_read <= 0 ) return 0;
- p_sys->i_audio_frame_size = i_read;
+ p_block->i_buffer = i_read;
+ p_sys->p_block_audio = 0;
- /* from vls : correct the date because of kernel buffering */
+ /* 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;
}
+ p_block->i_pts = p_block->i_dts =
+ mdate() - I64C(1000000) * (mtime_t)i_correct /
+ 2 / ( p_sys->b_stereo ? 2 : 1) / p_sys->i_sample_rate;
- *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;
+ return p_block;
}
/*****************************************************************************
* GrabVideo:
*****************************************************************************/
-static uint8_t *GrabCapture( input_thread_t *p_input )
+static uint8_t *GrabCapture( demux_t *p_demux )
{
- 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( ;; )
+ demux_sys_t *p_sys = p_demux->p_sys;
+ int i_captured_frame = p_sys->i_frame_pos;
+
+ p_sys->vid_mmap.frame = (p_sys->i_frame_pos + 1) % p_sys->vid_mbuf.frames;
+
+ while( ioctl( p_sys->fd_video, VIDIOCMCAPTURE, &p_sys->vid_mmap ) < 0 )
{
- if( ioctl( p_sys->fd_video, VIDIOCMCAPTURE, &p_sys->vid_mmap ) >= 0 )
+ if( errno != EAGAIN )
{
- break;
+ msg_Err( p_demux, "failed capturing new frame" );
+ return NULL;
}
- if( errno != EAGAIN )
+ if( p_demux->b_die )
{
- msg_Err( p_input, "failed while grabbing new frame" );
- return( NULL );
+ return NULL;
}
- msg_Dbg( p_input, "another try ?" );
- }
- //msg_Warn( p_input, "grab a new frame" );
+ msg_Dbg( p_demux, "grab failed, trying again" );
+ }
- while( ioctl(p_sys->fd_video, VIDIOCSYNC, &p_sys->i_frame_pos) < 0 &&
- ( errno == EAGAIN || errno == EINTR ) );
+ while( ioctl(p_sys->fd_video, VIDIOCSYNC, &p_sys->i_frame_pos) < 0 )
+ {
+ if( errno != EAGAIN && errno != EINTR )
+ {
+ msg_Err( p_demux, "failed syncing new frame" );
+ return NULL;
+ }
+ }
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];
+ return p_sys->p_video_mmap + p_sys->vid_mbuf.offsets[i_captured_frame];
}
-static uint8_t *GrabMJPEG( input_thread_t *p_input )
+static uint8_t *GrabMJPEG( demux_t *p_demux )
{
- access_sys_t *p_sys = p_input->p_access_data;
+ demux_sys_t *p_sys = p_demux->p_sys;
struct mjpeg_sync sync;
uint8_t *p_frame, *p_field, *p;
uint16_t tag;
/* re-queue the last frame we sync'd */
if( p_sys->i_frame_pos != -1 )
- while( ioctl( p_sys->fd_video, MJPIOC_QBUF_CAPT, &p_sys->i_frame_pos ) < 0 &&
- ( errno == EAGAIN || errno == EINTR ) );
+ {
+ while( ioctl( p_sys->fd_video, MJPIOC_QBUF_CAPT,
+ &p_sys->i_frame_pos ) < 0 )
+ {
+ if( errno != EAGAIN && errno != EINTR )
+ {
+ msg_Err( p_demux, "failed capturing new frame" );
+ return NULL;
+ }
+ }
+ }
/* sync on the next frame */
- while( ioctl( p_sys->fd_video, MJPIOC_SYNC, &sync ) < 0 &&
- ( errno == EAGAIN || errno == EINTR ) );
+ while( ioctl( p_sys->fd_video, MJPIOC_SYNC, &sync ) < 0 )
+ {
+ if( errno != EAGAIN && errno != EINTR )
+ {
+ msg_Err( p_demux, "failed syncing new frame" );
+ return NULL;
+ }
+ }
p_sys->i_frame_pos = sync.frame;
p_frame = p_sys->p_video_mmap + p_sys->mjpeg_buffers.size * sync.frame;
return p_frame;
}
-static int GrabVideo( input_thread_t * p_input,
- uint8_t **pp_data,
- int *pi_data,
- mtime_t *pi_pts )
+static block_t *GrabVideo( demux_t *p_demux )
{
- access_sys_t *p_sys = p_input->p_access_data;
- uint8_t *p_frame;
-
+ demux_sys_t *p_sys = p_demux->p_sys;
+ uint8_t *p_frame;
+ block_t *p_block;
if( p_sys->f_fps >= 0.1 && p_sys->i_video_pts > 0 )
{
mtime_t i_dur = (mtime_t)((double)1000000 / (double)p_sys->f_fps);
- /* Dif we wait long enougth ? */
- if( p_sys->i_video_pts + i_dur > mdate() )
- {
- return VLC_EGENERIC;
- }
- }
-
- if( p_sys->b_mjpeg )
- p_frame = GrabMJPEG( p_input );
- else
- p_frame = GrabCapture( p_input );
-
- if( !p_frame )
- return VLC_EGENERIC;
-
- p_sys->i_video_pts = mdate();
- p_sys->p_video_frame = p_frame;
-
- *pp_data = p_sys->p_video_frame;
- *pi_data = p_sys->i_video_frame_size;
- *pi_pts = p_sys->i_video_pts;
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Read: reads from the device into PES packets.
- *****************************************************************************
- * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
- * bytes.
- *****************************************************************************/
-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;
-
- 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 first */
- i_stream = p_sys->i_streams - 1;
- if( p_sys->fd_audio < 0 ||
- GrabAudio( p_input, &p_sys->p_data,
- &p_sys->i_data_size, &i_pts ) != VLC_SUCCESS )
- {
- /* Try grabbing video frame */
- i_stream = 0;
- if( p_sys->fd_video < 0 ||
- GrabVideo( p_input, &p_sys->p_data,
- &p_sys->i_data_size, &i_pts ) != VLC_SUCCESS )
- {
- /* Sleep so we do not consume all the cpu, 10ms seems
- * like a good value (100fps) */
- msleep( 10000 );
- }
- }
-
- /* 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
- ****************************************************************************/
-static int DemuxOpen( vlc_object_t *p_this )
-{
- input_thread_t *p_input = (input_thread_t *)p_this;
-
- uint8_t *p_peek;
- int i_streams;
- int i;
-
- data_packet_t *p_pk;
-
- /* Initialize access plug-in structures. */
- if( p_input->i_mtu == 0 )
- {
- /* Improve speed. */
- p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE ;
- }
-
- /* 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( strncmp( p_peek, ".v4l", 4 ) || GetDWBE( &p_peek[4] ) <= 0 )
- {
- msg_Warn( p_input, "v4l plugin discarded (not a valid stream)" );
- return VLC_EGENERIC;
+ /* Did we wait long enough ? (frame rate reduction) */
+ if( p_sys->i_video_pts + i_dur > mdate() ) return 0;
}
- /* create one program */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- if( input_InitStream( p_input, 0 ) == -1)
- {
- 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;
- }
+ if( p_sys->b_mjpeg ) p_frame = GrabMJPEG( p_demux );
+ else p_frame = GrabCapture( p_demux );
- p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
- p_input->stream.i_mux_rate = 0;
+ if( !p_frame ) return 0;
- i_streams = GetDWBE( &p_peek[4] );
- if( input_Peek( p_input, &p_peek, 8 + 20 * i_streams )
- < 8 + 20 * i_streams )
+ if( !( p_block = block_New( p_demux, p_sys->i_video_frame_size ) ) )
{
- msg_Err( p_input, "v4l plugin discarded (cannot peek)" );
- return VLC_EGENERIC;
+ msg_Warn( p_demux, "cannot get block" );
+ return 0;
}
- 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 ) )
- {
-#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
- }
-
- p_peek += 20;
- }
-
- 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 );
- }
+ memcpy( p_block->p_buffer, p_frame, p_sys->i_video_frame_size );
+ p_sys->i_video_pts = p_block->i_pts = p_block->i_dts = mdate();
- p_input->pf_demux = Demux;
- p_input->pf_demux_control = demux_vaControlDefault;
- return VLC_SUCCESS;
-}
-
-static void DemuxClose( vlc_object_t *p_this )
-{
- return;
-}
-
-#define MAX_PACKETS_IN_FIFO 3
-
-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] );
-
- 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;
- }
- 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 = 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;
+ return p_block;
}
projects / vlc / blobdiff