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vlc-gpu
Commit 2591b7db authored by Antoine Cellerier's avatar Antoine Cellerier
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Remove OSS support from v4l module. 

Untested as I don't have any v4l devices available. Please check
that this didn't break video capture.
parent 71b23066
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Showing with 60 additions and 315 deletions
modules/access/v4l.c
View file @ 2591b7db
......@@ -67,8 +67,6 @@
#include <linux/videodev.h>
#include "videodev_mjpeg.h"
#include <sys/soundcard.h>
/*****************************************************************************
* Module descriptior
*****************************************************************************/
......@@ -83,10 +81,6 @@ static void Close( vlc_object_t * );
#define VDEV_LONGTEXT N_( \
"Name of the video device to use. " \
"If you don't specify anything, no video device will be used.")
#define ADEV_TEXT N_("Audio device name")
#define ADEV_LONGTEXT N_( \
"Name of the audio device to use. " \
"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 " \
......@@ -124,12 +118,6 @@ static void Close( vlc_object_t * );
"Contrast of the video input." )
#define TUNER_TEXT N_( "Tuner" )
#define TUNER_LONGTEXT N_( "Tuner to use, if there are several ones." )
#define SAMPLERATE_TEXT N_( "Samplerate" )
#define SAMPLERATE_LONGTEXT N_( \
"Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100)" )
#define STEREO_TEXT N_( "Stereo" )
#define STEREO_LONGTEXT N_( \
"Capture the audio stream in stereo." )
#define MJPEG_TEXT N_( "MJPEG" )
#define MJPEG_LONGTEXT N_( \
"Set this option if the capture device outputs MJPEG" )
......@@ -142,11 +130,18 @@ static void Close( vlc_object_t * );
#define FPS_LONGTEXT N_( "Framerate to capture, if applicable " \
"(-1 for autodetect)." )
#define AUDIO_DEPRECATED_ERROR N_( \
"Alsa or OSS audio capture in the v4l access is deprecated. " \
"please use 'v4l:/""/ --input-slave alsa:/""/' or " \
"'v4l:/""/ --input-slave oss:/""/' instead." )
static const int i_norm_list[] =
{ VIDEO_MODE_AUTO, VIDEO_MODE_SECAM, VIDEO_MODE_PAL, VIDEO_MODE_NTSC };
static const char *const psz_norm_list_text[] =
{ N_("Automatic"), N_("SECAM"), N_("PAL"), N_("NTSC") };
#define V4L_DEFAULT "/dev/video"
vlc_module_begin ()
set_shortname( N_("Video4Linux") )
set_description( N_("Video4Linux input") )
......@@ -155,15 +150,12 @@ vlc_module_begin ()
add_integer( "v4l-caching", DEFAULT_PTS_DELAY / 1000, NULL,
CACHING_TEXT, CACHING_LONGTEXT, true );
add_string( "v4l-vdev", "/dev/video", 0, VDEV_TEXT, VDEV_LONGTEXT,
false );
add_string( "v4l-adev", "/dev/dsp", 0, ADEV_TEXT, ADEV_LONGTEXT,
false );
add_obsolete_string( "v4l-vdev" );
add_obsolete_string( "v4l-adev" );
add_string( "v4l-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
true );
add_float( "v4l-fps", -1.0, NULL, FPS_TEXT, FPS_LONGTEXT, true )
add_integer( "v4l-samplerate", 44100, NULL, SAMPLERATE_TEXT,
SAMPLERATE_LONGTEXT, true );
add_obsolete_integer( "v4l-samplerate" );
add_integer( "v4l-channel", 0, NULL, CHANNEL_TEXT, CHANNEL_LONGTEXT,
true );
add_integer( "v4l-tuner", -1, NULL, TUNER_TEXT, TUNER_LONGTEXT, true )
......@@ -173,8 +165,7 @@ vlc_module_begin ()
add_integer( "v4l-frequency", -1, NULL, FREQUENCY_TEXT, FREQUENCY_LONGTEXT,
false );
add_integer( "v4l-audio", -1, NULL, AUDIO_TEXT, AUDIO_LONGTEXT, true )
add_bool( "v4l-stereo", true, NULL, STEREO_TEXT, STEREO_LONGTEXT,
true );
add_obsolete_bool( "v4l-stereo" );
add_integer( "v4l-width", 0, NULL, WIDTH_TEXT, WIDTH_LONGTEXT, true )
add_integer( "v4l-height", 0, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT,
true );
......@@ -205,9 +196,6 @@ 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 * );
#define MJPEG_BUFFER_SIZE (256*1024)
......@@ -256,14 +244,9 @@ static const struct
struct demux_sys_t
{
/* Devices */
char *psz_device; /* Main device from MRL, can be video or audio */
char *psz_vdev;
char *psz_device; /* Main device from MRL */
int fd_video;
char *psz_adev;
int fd_audio;
/* Video properties */
picture_t pic;
......@@ -299,15 +282,7 @@ struct demux_sys_t
struct video_picture vid_picture;
int i_video_frame_size;
es_out_id_t *p_es_video;
/* Audio properties */
vlc_fourcc_t i_acodec_raw;
int i_sample_rate;
bool b_stereo;
int i_audio_max_frame_size;
block_t *p_block_audio;
es_out_id_t *p_es_audio;
es_out_id_t *p_es;
};
/*****************************************************************************
......@@ -402,102 +377,25 @@ static int Open( vlc_object_t *p_this )
var_Get( p_demux, "v4l-quality", &val );
p_sys->i_quality = val.i_int;
var_Create( p_demux, "v4l-samplerate",
VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_demux, "v4l-samplerate", &val );
p_sys->i_sample_rate = val.i_int;
var_Create( p_demux, "v4l-stereo", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
var_Get( p_demux, "v4l-stereo", &val );
p_sys->b_stereo = val.b_bool;
p_sys->psz_device = p_sys->psz_vdev = p_sys->psz_adev = NULL;
p_sys->psz_device = NULL;
p_sys->fd_video = -1;
p_sys->fd_audio = -1;
p_sys->p_es_video = p_sys->p_es_audio = 0;
p_sys->p_block_audio = 0;
p_sys->p_es = NULL;
ParseMRL( p_demux );
/* Find main device (video or audio) */
if( p_sys->psz_device && *p_sys->psz_device )
{
msg_Dbg( p_demux, "main device=`%s'", p_sys->psz_device );
/* Try to open as video device */
msg_Dbg( p_this, "opening device '%s'", 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_demux, p_sys->psz_device );
if( p_sys->fd_audio >= 0 )
{
free( p_sys->psz_adev );
p_sys->psz_adev = p_sys->psz_device;
p_sys->psz_device = NULL;
}
}
else
{
free( p_sys->psz_vdev );
p_sys->psz_vdev = p_sys->psz_device;
p_sys->psz_device = NULL;
}
}
/* If no device opened, only continue if the access was forced */
if( p_sys->fd_video < 0 && p_sys->fd_audio < 0 )
{
if( strcmp( p_demux->psz_access, "v4l" ) )
{
Close( p_this );
return VLC_EGENERIC;
}
}
/* Find video device */
if( p_sys->fd_video < 0 )
{
if( !p_sys->psz_vdev || !*p_sys->psz_vdev )
{
free( p_sys->psz_vdev );
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_demux, p_sys->psz_vdev );
}
}
/* Find audio device */
if( p_sys->fd_audio < 0 )
{
if( !p_sys->psz_adev || !*p_sys->psz_adev )
{
free( p_sys->psz_adev );
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_demux, p_sys->psz_adev );
}
}
if( p_sys->fd_video < 0 && p_sys->fd_audio < 0 )
{
Close( p_this );
return VLC_EGENERIC;
}
msg_Dbg( p_demux, "v4l grabbing started" );
/* 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;
......@@ -527,27 +425,7 @@ static int Open( vlc_object_t *p_this )
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 );
}
p_sys->p_es = es_out_Add( p_demux->out, &fmt );
/* Update default_pts to a suitable value for access */
var_Create( p_demux, "v4l-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
......@@ -564,11 +442,7 @@ static void Close( vlc_object_t *p_this )
demux_sys_t *p_sys = p_demux->p_sys;
free( p_sys->psz_device );
free( p_sys->psz_vdev );
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->b_mjpeg )
{
......@@ -631,16 +505,7 @@ static int Control( demux_t *p_demux, int i_query, va_list args )
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;
/* 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 );
}
block_t *p_block = GrabVideo( p_demux );
if( !p_block )
{
......@@ -651,7 +516,7 @@ static int Demux( demux_t *p_demux )
}
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
es_out_Send( p_demux->out, p_es, p_block );
es_out_Send( p_demux->out, p_sys->p_es, p_block );
return 1;
}
......@@ -798,43 +663,6 @@ static void ParseMRL( demux_t *p_demux )
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 = true;
}
else if( !strncmp( psz_parser, "mono", strlen( "mono" ) ) )
{
psz_parser += strlen( "mono" );
p_sys->b_stereo = false;
}
else if( !strncmp( psz_parser, "mjpeg", strlen( "mjpeg" ) ) )
{
psz_parser += strlen( "mjpeg" );
......@@ -860,6 +688,17 @@ static void ParseMRL( demux_t *p_demux )
p_sys->f_fps = strtof( psz_parser + strlen( "fps=" ),
&psz_parser );
}
else if( !strncmp( psz_parser, "adev=", strlen( "adev=" ) )
|| !strncmp( psz_parser, "samplerate=", strlen( "samplerate=" ) )
|| !strncmp( psz_parser, "stereo", strlen( "stereo" ) )
|| !strncmp( psz_parser, "mono", strlen( "mono" ) ) )
{
if( strchr( psz_parser, ':' ) )
psz_parser = strchr( psz_parser, ':' );
else
psz_parser += strlen( psz_parser );
msg_Err( p_demux, AUDIO_DEPRECATED_ERROR );
}
else
{
msg_Warn( p_demux, "unknown option" );
......@@ -878,9 +717,9 @@ static void ParseMRL( demux_t *p_demux )
}
if( *psz_dup )
{
p_sys->psz_device = strdup( psz_dup );
}
else
p_sys->psz_device = strdup( V4L_DEFAULT );
free( psz_dup );
}
......@@ -1342,100 +1181,6 @@ vdev_failed:
return -1;
}
/*****************************************************************************
* OpenAudioDev:
*****************************************************************************/
static int OpenAudioDev( demux_t *p_demux, char *psz_device )
{
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_demux, "cannot open audio device (%m)" );
goto adev_fail;
}
i_format = AFMT_S16_LE;
if( ioctl( i_fd, SNDCTL_DSP_SETFMT, &i_format ) < 0
|| i_format != AFMT_S16_LE )
{
msg_Err( p_demux, "cannot set audio format (16b little endian) "
"(%m)" );
goto adev_fail;
}
if( ioctl( i_fd, SNDCTL_DSP_STEREO,
&p_sys->b_stereo ) < 0 )
{
msg_Err( p_demux, "cannot set audio channels count (%m)" );
goto adev_fail;
}
if( ioctl( i_fd, SNDCTL_DSP_SPEED,
&p_sys->i_sample_rate ) < 0 )
{
msg_Err( p_demux, "cannot set audio sample rate (%m)" );
goto adev_fail;
}
msg_Dbg( p_demux, "opened adev=`%s' %s %dHz",
psz_device, p_sys->b_stereo ? "stereo" : "mono",
p_sys->i_sample_rate );
p_sys->i_audio_max_frame_size = 6 * 1024;
return i_fd;
adev_fail:
if( i_fd >= 0 ) close( i_fd );
return -1;
}
/*****************************************************************************
* GrabAudio: grab audio
*****************************************************************************/
static block_t *GrabAudio( demux_t *p_demux )
{
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_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_block )
{
msg_Warn( p_demux, "cannot get block" );
return 0;
}
p_sys->p_block_audio = p_block;
i_read = read( p_sys->fd_audio, p_block->p_buffer,
p_sys->i_audio_max_frame_size );
if( i_read <= 0 ) return 0;
p_block->i_buffer = i_read;
p_sys->p_block_audio = 0;
/* 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() - INT64_C(1000000) * (mtime_t)i_correct /
2 / ( p_sys->b_stereo ? 2 : 1) / p_sys->i_sample_rate;
return p_block;
}
/*****************************************************************************
* GrabVideo:
*****************************************************************************/
......
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