/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
#include <vlc_demux.h>
-#include <vlc_vout.h> /* vout_InitFormat */
+#include <assert.h>
/*****************************************************************************
* Module descriptor
#define FPS_TEXT N_("Frames per Second")
#define FPS_LONGTEXT N_("This is the desired frame rate when " \
- "playing raw video streams.")
+ "playing raw video streams. In the form 30000/1001 or 29.97")
#define WIDTH_TEXT N_("Width")
#define WIDTH_LONGTEXT N_("This specifies the width in pixels of the raw " \
#define ASPECT_RATIO_TEXT N_("Aspect ratio")
#define ASPECT_RATIO_LONGTEXT N_( \
- "Aspect ratio (4:3, 16:9). Default is square pixels." )
-
-vlc_module_begin();
- set_shortname( "Raw Video" );
- set_description( _("Raw video demuxer") );
- set_capability( "demux2", 2 );
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_DEMUX );
- set_callbacks( Open, Close );
- add_shortcut( "rawvideo" );
- add_float( "rawvid-fps", 25, 0, FPS_TEXT, FPS_LONGTEXT, VLC_FALSE );
- add_integer( "rawvid-width", 176, 0, WIDTH_TEXT, WIDTH_LONGTEXT, 0 );
- add_integer( "rawvid-height", 144, 0, HEIGHT_TEXT, HEIGHT_LONGTEXT, 0 );
+ "Aspect ratio (4:3, 16:9). Default assumes square pixels." )
+
+vlc_module_begin ()
+ set_shortname( "Raw Video" )
+ set_description( N_("Raw video demuxer") )
+ set_capability( "demux", 10 )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_DEMUX )
+ set_callbacks( Open, Close )
+ add_shortcut( "rawvideo" )
+ add_string( "rawvid-fps", NULL, NULL, FPS_TEXT, FPS_LONGTEXT, false )
+ add_integer( "rawvid-width", 0, 0, WIDTH_TEXT, WIDTH_LONGTEXT, 0 )
+ add_integer( "rawvid-height", 0, 0, HEIGHT_TEXT, HEIGHT_LONGTEXT, 0 )
add_string( "rawvid-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
- VLC_TRUE );
+ true )
add_string( "rawvid-aspect-ratio", NULL, NULL,
- ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, VLC_TRUE );
-vlc_module_end();
+ ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, true )
+vlc_module_end ()
/*****************************************************************************
* Definitions of structures used by this plugin
struct demux_sys_t
{
int frame_size;
- float f_fps;
es_out_id_t *p_es_video;
es_format_t fmt_video;
- mtime_t i_pcr;
+ date_t pcr;
+
+ bool b_y4m;
};
/*****************************************************************************
static int Demux( demux_t * );
static int Control( demux_t *, int i_query, va_list args );
+struct preset_t
+{
+ const char *psz_ext;
+ int i_width;
+ int i_height;
+ unsigned u_fps_num;
+ unsigned u_fps_den;
+ unsigned u_ar_num;
+ unsigned u_ar_den;
+ vlc_fourcc_t i_chroma;
+};
+
+static const struct preset_t p_presets[] =
+{
+ { "sqcif", 128, 96, 30000, 1001, 4,3, VLC_CODEC_YV12 },
+ { "qcif", 176, 144, 30000, 1001, 4,3, VLC_CODEC_YV12 },
+ { "cif", 352, 288, 30000, 1001, 4,3, VLC_CODEC_YV12 },
+ { "4cif", 704, 576, 30000, 1001, 4,3, VLC_CODEC_YV12 },
+ { "16cif", 1408, 1152, 30000, 1001, 4,3, VLC_CODEC_YV12 },
+ { "yuv", 176, 144, 25, 1, 4,3, VLC_CODEC_YV12 },
+ { NULL, 0, 0, 0, 0, 0,0, 0 }
+};
+
/*****************************************************************************
* Open: initializes raw DV demux structures
*****************************************************************************/
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
- int i_width, i_height;
- char *psz_ext;
- char *psz_chroma;
- uint32_t i_chroma;
- char *psz_aspect_ratio;
- unsigned int i_aspect;
-
- /* Check for YUV file extension */
- psz_ext = strrchr( p_demux->psz_path, '.' );
- if( ( !psz_ext || strcasecmp( psz_ext, ".yuv") ) &&
- strcmp(p_demux->psz_demux, "rawvid") )
+ int i_width=-1, i_height=-1;
+ unsigned u_fps_num=0, u_fps_den=1;
+ vlc_fourcc_t i_chroma;
+ unsigned int i_sar_num = 0;
+ unsigned int i_sar_den = 0;
+ const struct preset_t *p_preset = NULL;
+ const uint8_t *p_peek;
+ bool b_y4m = false;
+
+ if( stream_Peek( p_demux->s, &p_peek, 9 ) == 9 )
{
- return VLC_EGENERIC;
+ /* http://wiki.multimedia.cx/index.php?title=YUV4MPEG2 */
+ if( !strncmp( (char *)p_peek, "YUV4MPEG2", 9 ) )
+ {
+ b_y4m = true;
+ goto valid;
+ }
}
+ if( !p_demux->b_force )
+ {
+ /* guess preset based on file extension */
+ if( !p_demux->psz_file )
+ return VLC_EGENERIC;
+
+ const char *psz_ext = strrchr( p_demux->psz_file, '.' );
+ if( !psz_ext )
+ return VLC_EGENERIC;
+ psz_ext++;
+
+ for( unsigned i = 0; p_presets[i].psz_ext ; i++ )
+ {
+ if( !strcasecmp( psz_ext, p_presets[i].psz_ext ) )
+ {
+ p_preset = &p_presets[i];
+ goto valid;
+ }
+ }
+ return VLC_EGENERIC;
+ }
+valid:
/* Set p_input field */
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
- p_sys->i_pcr = 1;
+ if( !p_sys )
+ return VLC_ENOMEM;
- p_sys->f_fps = var_CreateGetFloat( p_demux, "rawvid-fps" );
+ p_sys->b_y4m = b_y4m;
- i_width = var_CreateGetInteger( p_demux, "rawvid-width" );
- i_height = var_CreateGetInteger( p_demux, "rawvid-height" );
- if( i_width <= 0 || i_height <= 0 )
+ /* guess the parameters based on the preset */
+ if( p_preset )
{
- msg_Err( p_demux, "width and height must be strictly positive." );
- free( p_sys );
- return VLC_EGENERIC;
+ i_width = p_preset->i_width;
+ i_height = p_preset->i_height;
+ u_fps_num = p_preset->u_fps_num;
+ u_fps_den = p_preset->u_fps_den;
+ i_sar_num = p_preset->u_ar_num * p_preset->i_height;
+ i_sar_den = p_preset->u_ar_den * p_preset->i_width;
+ i_chroma = p_preset->i_chroma;
}
- psz_chroma = var_CreateGetString( p_demux, "rawvid-chroma" );
- psz_aspect_ratio = var_CreateGetString( p_demux, "rawvid-aspect-ratio" );
+ /* override presets if yuv4mpeg2 */
+ if( b_y4m )
+ {
+ char *psz = stream_ReadLine( p_demux->s );
+ char *psz_buf;
+ int a = 1;
+ int b = 1;
+
+ /* The string will start with "YUV4MPEG2" */
+ assert( strlen(psz) >= 9 );
+
+ /* NB, it is not possible to handle interlaced here, since the
+ * interlaced picture flags are in picture_t not block_t */
+
+#define READ_FRAC( key, num, den ) do { \
+ psz_buf = strstr( psz+9, key );\
+ if( psz_buf )\
+ {\
+ char *end = strchr( psz_buf+1, ' ' );\
+ char *sep;\
+ if( end ) *end = '\0';\
+ sep = strchr( psz_buf+1, ':' );\
+ if( sep )\
+ {\
+ *sep = '\0';\
+ den = atoi( sep+1 );\
+ }\
+ else\
+ {\
+ den = 1;\
+ }\
+ num = atoi( psz_buf+2 );\
+ if( sep ) *sep = ':';\
+ if( end ) *end = ' ';\
+ } } while(0)
+ READ_FRAC( " W", i_width, a );
+ READ_FRAC( " H", i_height, a );
+ READ_FRAC( " F", u_fps_num, u_fps_den );
+ READ_FRAC( " A", a, b );
+#undef READ_FRAC
+ if( b != 0 )
+ {
+ i_sar_num = a;
+ i_sar_den = b;
+ }
+
+ psz_buf = strstr( psz+9, " C" );
+ if( psz_buf )
+ {
+ static const struct { const char *psz_name; vlc_fourcc_t i_fcc; } formats[] =
+ {
+ { "420jpeg", VLC_CODEC_I420 },
+ { "420paldv", VLC_CODEC_I420 },
+ { "420", VLC_CODEC_I420 },
+ { "422", VLC_CODEC_I422 },
+ { "444", VLC_CODEC_I444 },
+ { "mono", VLC_CODEC_GREY },
+ { NULL, 0 }
+ };
+ bool b_found = false;
+ char *psz_end = strchr( psz_buf+1, ' ' );
+ if( psz_end )
+ *psz_end = '\0';
+ psz_buf += 2;
+
+ for( int i = 0; formats[i].psz_name != NULL; i++ )
+ {
+ if( !strncmp( psz_buf, formats[i].psz_name, strlen(formats[i].psz_name) ) )
+ {
+ i_chroma = formats[i].i_fcc;
+ b_found = true;
+ break;
+ }
+ }
+ if( !b_found )
+ msg_Warn( p_demux, "Unknown YUV4MPEG2 chroma type \"%s\"", psz_buf );
+ if( psz_end )
+ *psz_end = ' ';
+ }
+
+ free( psz );
+ }
+
+ /* allow the user to override anything guessed from the input */
+ int i_tmp;
+ i_tmp = var_CreateGetInteger( p_demux, "rawvid-width" );
+ if( i_tmp ) i_width = i_tmp;
+
+ i_tmp = var_CreateGetInteger( p_demux, "rawvid-height" );
+ if( i_tmp ) i_height = i_tmp;
- if( psz_aspect_ratio && *psz_aspect_ratio )
+ char *psz_tmp;
+ psz_tmp = var_CreateGetNonEmptyString( p_demux, "rawvid-chroma" );
+ if( psz_tmp )
{
- char *psz_parser = strchr( psz_aspect_ratio, ':' );
- if( psz_parser )
+ if( strlen( psz_tmp ) != 4 )
{
- *psz_parser++ = '\0';
- i_aspect = atoi( psz_aspect_ratio ) * VOUT_ASPECT_FACTOR
- / atoi( psz_parser );
+ msg_Err( p_demux, "Invalid fourcc format/chroma specification %s"
+ " expecting four characters eg, UYVY", psz_tmp );
+ free( psz_tmp );
+ goto error;
}
- else
+ memcpy( &i_chroma, psz_tmp, 4 );
+ msg_Dbg( p_demux, "Forcing chroma to 0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
+ free( psz_tmp );
+ }
+
+ psz_tmp = var_CreateGetNonEmptyString( p_demux, "rawvid-fps" );
+ if( psz_tmp )
+ {
+ char *p_ptr;
+ /* fps can either be n/d or q.f
+ * for accuracy, avoid representation in float */
+ u_fps_num = strtol( psz_tmp, &p_ptr, 10 );
+ if( *p_ptr == '/' )
+ {
+ p_ptr++;
+ u_fps_den = strtol( p_ptr, NULL, 10 );
+ }
+ else if( *p_ptr == '.' )
+ {
+ char *p_end;
+ p_ptr++;
+ int i_frac = strtol( p_ptr, &p_end, 10 );
+ u_fps_den = (p_end - p_ptr) * 10;
+ if( !u_fps_den )
+ u_fps_den = 1;
+ u_fps_num = u_fps_num * u_fps_den + i_frac;
+ }
+ else if( *p_ptr == '\0')
{
- i_aspect = atof( psz_aspect_ratio ) * VOUT_ASPECT_FACTOR;
+ u_fps_den = 1;
}
+ free( psz_tmp );
}
- else
+
+ psz_tmp = var_CreateGetNonEmptyString( p_demux, "rawvid-aspect-ratio" );
+ if( psz_tmp )
{
- i_aspect = i_width * VOUT_ASPECT_FACTOR / i_height;
+ char *psz_denominator = strchr( psz_tmp, ':' );
+ if( psz_denominator )
+ {
+ *psz_denominator++ = '\0';
+ i_sar_num = atoi( psz_tmp ) * i_height;
+ i_sar_den = atoi( psz_denominator ) * i_width;
+ }
+ free( psz_tmp );
}
- free( psz_aspect_ratio );
- if( psz_chroma && strlen( psz_chroma ) >= 4 )
+ /* moan about anything wrong */
+ if( i_width <= 0 || i_height <= 0 )
{
- memcpy( &i_chroma, psz_chroma, 4 );
- msg_Dbg( p_demux, "Forcing chroma to 0x%.8x (%4.4s)", i_chroma,
- (char*)&i_chroma );
+ msg_Err( p_demux, "width and height must be strictly positive." );
+ goto error;
}
- else
+
+ if( !u_fps_num || !u_fps_den )
{
- i_chroma = VLC_FOURCC('Y','V','1','2');
- msg_Dbg( p_demux, "Using default chroma 0x%.8x (%4.4s)", i_chroma,
- (char*)&i_chroma );
+ msg_Err( p_demux, "invalid or no framerate specified." );
+ goto error;
+ }
+
+ /* fixup anything missing with sensible assumptions */
+ if( i_sar_num <= 0 || i_sar_den <= 0 )
+ {
+ /* assume 1:1 sar */
+ i_sar_num = 1;
+ i_sar_den = 1;
}
- free( psz_chroma );
es_format_Init( &p_sys->fmt_video, VIDEO_ES, i_chroma );
- vout_InitFormat( &p_sys->fmt_video.video, i_chroma, i_width, i_height,
- i_aspect );
+ video_format_Setup( &p_sys->fmt_video.video,
+ i_chroma, i_width, i_height,
+ i_sar_num, i_sar_den );
+
+ vlc_ureduce( &p_sys->fmt_video.video.i_frame_rate,
+ &p_sys->fmt_video.video.i_frame_rate_base,
+ u_fps_num, u_fps_den, 0);
+ date_Init( &p_sys->pcr, p_sys->fmt_video.video.i_frame_rate,
+ p_sys->fmt_video.video.i_frame_rate_base );
+ date_Set( &p_sys->pcr, 0 );
+
if( !p_sys->fmt_video.video.i_bits_per_pixel )
{
msg_Err( p_demux, "Unsupported chroma 0x%.8x (%4.4s)", i_chroma,
(char*)&i_chroma );
- free( p_sys );
- return VLC_EGENERIC;
+ goto error;
}
p_sys->frame_size = i_width * i_height
* p_sys->fmt_video.video.i_bits_per_pixel / 8;
p_sys->p_es_video = es_out_Add( p_demux->out, &p_sys->fmt_video );
return VLC_SUCCESS;
+
+error:
+ stream_Seek( p_demux->s, 0 ); // Workaround, but y4m uses stream_ReadLines
+ free( p_sys );
+ return VLC_EGENERIC;
}
/*****************************************************************************
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
+ mtime_t i_pcr = date_Get( &p_sys->pcr );
/* Call the pace control */
- es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + i_pcr );
+
+ if( p_sys->b_y4m )
+ {
+ /* Skip the frame header */
+ /* Skip "FRAME" */
+ if( stream_Read( p_demux->s, NULL, 5 ) < 5 )
+ return 0;
+ /* Find \n */
+ for( ;; )
+ {
+ uint8_t b;
+ if( stream_Read( p_demux->s, &b, 1 ) < 1 )
+ return 0;
+ if( b == 0x0a )
+ break;
+ }
+ }
if( ( p_block = stream_Block( p_demux->s, p_sys->frame_size ) ) == NULL )
{
return 0;
}
- p_block->i_dts = p_block->i_pts = p_sys->i_pcr;
+ p_block->i_dts = p_block->i_pts = VLC_TS_0 + i_pcr;
es_out_Send( p_demux->out, p_sys->p_es_video, p_block );
- p_sys->i_pcr += ( I64C(1000000) / p_sys->f_fps );
+ date_Increment( &p_sys->pcr, 1 );
return 1;
}
{
demux_sys_t *p_sys = p_demux->p_sys;
+ /* (2**31)-1 is insufficient to store 1080p50 4:4:4. */
+ const int64_t i_bps = 8LL * p_sys->frame_size * p_sys->pcr.i_divider_num /
+ p_sys->pcr.i_divider_den;
+
/* XXX: DEMUX_SET_TIME is precise here */
- return demux2_vaControlHelper( p_demux->s, 0, -1,
- p_sys->frame_size * p_sys->f_fps * 8,
+ return demux_vaControlHelper( p_demux->s, 0, -1, i_bps,
p_sys->frame_size, i_query, args );
}
+
projects / vlc / blobdiff