/*****************************************************************************
* rawvideo.c: Pseudo video decoder/packetizer for raw video data
*****************************************************************************
- * Copyright (C) 2001, 2002 the VideoLAN team
+ * Copyright (C) 2001, 2002 VLC authors and VideoLAN
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
- * 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
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
# include "config.h"
#endif
-#include <vlc/vlc.h>
+#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_codec.h>
-#include <vlc_vout.h>
/*****************************************************************************
* decoder_sys_t : raw video decoder descriptor
*****************************************************************************/
struct decoder_sys_t
{
- /* Module mode */
- bool b_packetizer;
-
/*
* Input properties
*/
- size_t i_raw_size;
- bool b_invert;
+ size_t size;
+ unsigned pitches[PICTURE_PLANE_MAX];
+ unsigned lines[PICTURE_PLANE_MAX];
/*
* Common properties
*/
- mtime_t i_pts;
-
+ date_t pts;
};
/****************************************************************************
****************************************************************************/
static int OpenDecoder ( vlc_object_t * );
static int OpenPacketizer( vlc_object_t * );
-static void CloseDecoder ( vlc_object_t * );
-
-static void *DecodeBlock ( decoder_t *, block_t ** );
-
-static picture_t *DecodeFrame( decoder_t *, block_t * );
-static block_t *SendFrame ( decoder_t *, block_t * );
+static void CloseCommon ( vlc_object_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
-vlc_module_begin();
- set_description( _("Pseudo raw video decoder") );
- set_capability( "decoder", 50 );
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_VCODEC );
- set_callbacks( OpenDecoder, CloseDecoder );
-
- add_submodule();
- set_description( _("Pseudo raw video packetizer") );
- set_capability( "packetizer", 100 );
- set_callbacks( OpenPacketizer, CloseDecoder );
-vlc_module_end();
-
-/*****************************************************************************
- * OpenDecoder: probe the decoder and return score
- *****************************************************************************/
-static int OpenDecoder( vlc_object_t *p_this )
+vlc_module_begin ()
+ set_description( N_("Pseudo raw video decoder") )
+ set_capability( "decoder", 50 )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_VCODEC )
+ set_callbacks( OpenDecoder, CloseCommon )
+
+ add_submodule ()
+ set_description( N_("Pseudo raw video packetizer") )
+ set_capability( "packetizer", 100 )
+ set_callbacks( OpenPacketizer, CloseCommon )
+vlc_module_end ()
+
+/**
+ * Common initialization for decoder and packetizer
+ */
+static int OpenCommon( decoder_t *p_dec )
{
- decoder_t *p_dec = (decoder_t*)p_this;
- decoder_sys_t *p_sys;
+ const vlc_chroma_description_t *dsc =
+ vlc_fourcc_GetChromaDescription( p_dec->fmt_in.i_codec );
+ if( dsc == NULL || dsc->plane_count == 0 )
+ return VLC_EGENERIC;
- switch( p_dec->fmt_in.i_codec )
+ if( p_dec->fmt_in.video.i_width <= 0 || p_dec->fmt_in.video.i_height == 0 )
{
- /* Planar YUV */
- case VLC_FOURCC('I','4','4','4'):
- case VLC_FOURCC('I','4','2','2'):
- case VLC_FOURCC('I','4','2','0'):
- case VLC_FOURCC('Y','V','1','2'):
- case VLC_FOURCC('I','Y','U','V'):
- case VLC_FOURCC('I','4','1','1'):
- case VLC_FOURCC('I','4','1','0'):
- case VLC_FOURCC('Y','V','U','9'):
- case VLC_FOURCC('Y','4','2','B'):
- case VLC_FOURCC('Y','4','1','B'):
-
- /* Packed YUV */
- case VLC_FOURCC('Y','U','Y','2'):
- case VLC_FOURCC('Y','8','0','0'):
- case VLC_FOURCC('U','Y','V','Y'):
- case VLC_FOURCC('H','D','Y','C'):
-
- /* RGB */
- case VLC_FOURCC('R','V','3','2'):
- case VLC_FOURCC('R','V','2','4'):
- case VLC_FOURCC('R','V','1','6'):
- case VLC_FOURCC('R','V','1','5'):
- break;
- case VLC_FOURCC('2','V','u','y'):
- case VLC_FOURCC('2','v','u','y'):
- case VLC_FOURCC('A','V','U','I'):
- p_dec->fmt_in.i_codec = VLC_FOURCC('U','Y','V','Y');
- break;
- case VLC_FOURCC('y','v','1','2'):
- p_dec->fmt_in.i_codec = VLC_FOURCC('Y','V','1','2');
- break;
-
- default:
- return VLC_EGENERIC;
+ msg_Err( p_dec, "invalid display size %dx%d",
+ p_dec->fmt_in.video.i_width, p_dec->fmt_in.video.i_height );
+ return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
- if( ( p_dec->p_sys = p_sys =
- (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
+ decoder_sys_t *p_sys = calloc(1, sizeof(*p_sys));
+ if( unlikely(p_sys == NULL) )
return VLC_ENOMEM;
- /* Misc init */
- p_dec->p_sys->b_packetizer = false;
- p_sys->i_pts = 0;
- p_sys->b_invert = 0;
- if( (int)p_dec->fmt_in.video.i_height < 0 )
- {
- /* Frames are coded from bottom to top */
- p_dec->fmt_in.video.i_height =
- (unsigned int)(-(int)p_dec->fmt_in.video.i_height);
- p_sys->b_invert = true;
- }
+ if( !p_dec->fmt_in.video.i_visible_width )
+ p_dec->fmt_in.video.i_visible_width = p_dec->fmt_in.video.i_width;
+ if( !p_dec->fmt_in.video.i_visible_height )
+ p_dec->fmt_in.video.i_visible_height = p_dec->fmt_in.video.i_height;
- if( p_dec->fmt_in.video.i_width <= 0 || p_dec->fmt_in.video.i_height <= 0 )
+ es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
+
+ date_Init( &p_sys->pts, p_dec->fmt_out.video.i_frame_rate,
+ p_dec->fmt_out.video.i_frame_rate_base );
+ if( p_dec->fmt_out.video.i_frame_rate == 0 ||
+ p_dec->fmt_out.video.i_frame_rate_base == 0)
{
- msg_Err( p_dec, "invalid display size %dx%d",
- p_dec->fmt_in.video.i_width, p_dec->fmt_in.video.i_height );
- return VLC_EGENERIC;
+ msg_Warn( p_dec, "invalid frame rate %d/%d, using 25 fps instead",
+ p_dec->fmt_out.video.i_frame_rate,
+ p_dec->fmt_out.video.i_frame_rate_base);
+ date_Init( &p_sys->pts, 25, 1 );
}
- /* Find out p_vdec->i_raw_size */
- vout_InitFormat( &p_dec->fmt_out.video, p_dec->fmt_in.i_codec,
- p_dec->fmt_in.video.i_width,
- p_dec->fmt_in.video.i_height,
- p_dec->fmt_in.video.i_aspect );
- p_sys->i_raw_size = p_dec->fmt_out.video.i_bits_per_pixel *
- p_dec->fmt_out.video.i_width * p_dec->fmt_out.video.i_height / 8;
-
- /* Set output properties */
- p_dec->fmt_out.i_cat = VIDEO_ES;
- p_dec->fmt_out.i_codec = p_dec->fmt_in.i_codec;
- if( !p_dec->fmt_in.video.i_aspect )
+ for( unsigned i = 0; i < dsc->plane_count; i++ )
{
- p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR *
- p_dec->fmt_out.video.i_width / p_dec->fmt_out.video.i_height;
+ unsigned pitch = p_dec->fmt_in.video.i_width * dsc->pixel_size
+ * dsc->p[i].w.num / dsc->p[i].w.den;
+ unsigned lines = p_dec->fmt_in.video.i_height
+ * dsc->p[i].h.num / dsc->p[i].h.den;
+
+ p_sys->pitches[i] = pitch;
+ p_sys->lines[i] = lines;
+ p_sys->size += pitch * lines;
}
- else p_dec->fmt_out.video.i_aspect = p_dec->fmt_in.video.i_aspect;
-
- if( p_dec->fmt_in.video.i_rmask )
- p_dec->fmt_out.video.i_rmask = p_dec->fmt_in.video.i_rmask;
- if( p_dec->fmt_in.video.i_gmask )
- p_dec->fmt_out.video.i_gmask = p_dec->fmt_in.video.i_gmask;
- if( p_dec->fmt_in.video.i_bmask )
- p_dec->fmt_out.video.i_bmask = p_dec->fmt_in.video.i_bmask;
-
- /* Set callbacks */
- p_dec->pf_decode_video = (picture_t *(*)(decoder_t *, block_t **))
- DecodeBlock;
- p_dec->pf_packetize = (block_t *(*)(decoder_t *, block_t **))
- DecodeBlock;
+ p_dec->p_sys = p_sys;
return VLC_SUCCESS;
}
-static int OpenPacketizer( vlc_object_t *p_this )
-{
- decoder_t *p_dec = (decoder_t*)p_this;
-
- int i_ret = OpenDecoder( p_this );
-
- if( i_ret == VLC_SUCCESS ) p_dec->p_sys->b_packetizer = true;
-
- return i_ret;
-}
-
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
- block_t *p_block;
- void *p_buf;
- if( !pp_block || !*pp_block ) return NULL;
+ if( pp_block == NULL || *pp_block == NULL )
+ return NULL;
- p_block = *pp_block;
+ block_t *p_block = *pp_block;
- if( !p_sys->i_pts && !p_block->i_pts && !p_block->i_dts )
+ if( p_block->i_pts <= VLC_TS_INVALID && p_block->i_dts <= VLC_TS_INVALID &&
+ !date_Get( &p_sys->pts ) )
{
/* We've just started the stream, wait for the first PTS. */
block_Release( p_block );
return NULL;
}
- /* Date management */
- if( p_block->i_pts > 0 || p_block->i_dts > 0 )
+ /* Date management: If there is a pts avaliable, use that. */
+ if( p_block->i_pts > VLC_TS_INVALID )
{
- if( p_block->i_pts > 0 ) p_sys->i_pts = p_block->i_pts;
- else if( p_block->i_dts > 0 ) p_sys->i_pts = p_block->i_dts;
+ date_Set( &p_sys->pts, p_block->i_pts );
+ }
+ else if( p_block->i_dts > VLC_TS_INVALID )
+ {
+ /* NB, davidf doesn't quite agree with this in general, it is ok
+ * for rawvideo since it is in order (ie pts=dts), however, it
+ * may not be ok for an out-of-order codec, so don't copy this
+ * without thinking */
+ date_Set( &p_sys->pts, p_block->i_dts );
}
- if( p_block->i_buffer < p_sys->i_raw_size )
+ if( p_block->i_buffer < p_sys->size )
{
- msg_Warn( p_dec, "invalid frame size (%d < %d)",
- p_block->i_buffer, p_sys->i_raw_size );
+ msg_Warn( p_dec, "invalid frame size (%zu < %zu)",
+ p_block->i_buffer, p_sys->size );
block_Release( p_block );
return NULL;
}
- if( p_sys->b_packetizer )
- {
- p_buf = SendFrame( p_dec, p_block );
- }
- else
- {
- p_buf = DecodeFrame( p_dec, p_block );
- }
-
- /* Date management: 1 frame per packet */
- p_sys->i_pts += ( INT64_C(1000000) * 1.0 / 25 /*FIXME*/ );
*pp_block = NULL;
-
- return p_buf;
+ return p_block;
}
/*****************************************************************************
*****************************************************************************/
static void FillPicture( decoder_t *p_dec, block_t *p_block, picture_t *p_pic )
{
- uint8_t *p_src, *p_dst;
- int i_src, i_plane, i_line, i_width;
decoder_sys_t *p_sys = p_dec->p_sys;
+ const uint8_t *p_src = p_block->p_buffer;
- p_src = p_block->p_buffer;
- i_src = p_block->i_buffer;
-
- for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
+ for( int i = 0; i < p_pic->i_planes; i++ )
{
- p_dst = p_pic->p[i_plane].p_pixels;
- i_width = p_pic->p[i_plane].i_pitch;
+ uint8_t *p_dst = p_pic->p[i].p_pixels;
- if( p_sys->b_invert )
- p_src += (i_width * (p_pic->p[i_plane].i_visible_lines - 1));
-
- for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines; i_line++ )
+ for( int x = 0; x < p_pic->p[i].i_visible_lines; x++ )
{
- vlc_memcpy( p_dst, p_src, i_width );
- p_src += p_sys->b_invert ? -i_width : i_width;
- p_dst += i_width;
+ memcpy( p_dst, p_src, p_pic->p[i].i_visible_pitch );
+ p_src += p_sys->pitches[i];
+ p_dst += p_pic->p[i].i_pitch;
}
- if( p_sys->b_invert )
- p_src += (i_width * (p_pic->p[i_plane].i_visible_lines + 1));
+ p_src += p_sys->pitches[i]
+ * (p_sys->lines[i] - p_pic->p[i].i_visible_lines);
}
}
/*****************************************************************************
* DecodeFrame: decodes a video frame.
*****************************************************************************/
-static picture_t *DecodeFrame( decoder_t *p_dec, block_t *p_block )
+static picture_t *DecodeFrame( decoder_t *p_dec, block_t **pp_block )
{
+ block_t *p_block = DecodeBlock( p_dec, pp_block );
+ if( p_block == NULL )
+ return NULL;
+
decoder_sys_t *p_sys = p_dec->p_sys;
- picture_t *p_pic;
/* Get a new picture */
- p_pic = p_dec->pf_vout_buffer_new( p_dec );
- if( !p_pic )
+ picture_t *p_pic = decoder_NewPicture( p_dec );
+ if( p_pic == NULL )
{
block_Release( p_block );
return NULL;
FillPicture( p_dec, p_block, p_pic );
- p_pic->date = p_sys->i_pts;
+ /* Date management: 1 frame per packet */
+ p_pic->date = date_Get( &p_dec->p_sys->pts );
+ date_Increment( &p_sys->pts, 1 );
+
+ if( p_block->i_flags & BLOCK_FLAG_INTERLACED_MASK )
+ {
+ p_pic->b_progressive = false;
+ p_pic->i_nb_fields = 2;
+ if( p_block->i_flags & BLOCK_FLAG_TOP_FIELD_FIRST )
+ p_pic->b_top_field_first = true;
+ else
+ p_pic->b_top_field_first = false;
+ }
+ else
+ p_pic->b_progressive = true;
block_Release( p_block );
return p_pic;
}
+static int OpenDecoder( vlc_object_t *p_this )
+{
+ decoder_t *p_dec = (decoder_t *)p_this;
+
+ int ret = OpenCommon( p_dec );
+ if( ret == VLC_SUCCESS )
+ p_dec->pf_decode_video = DecodeFrame;
+ return ret;
+}
+
/*****************************************************************************
* SendFrame: send a video frame to the stream output.
*****************************************************************************/
-static block_t *SendFrame( decoder_t *p_dec, block_t *p_block )
+static block_t *SendFrame( decoder_t *p_dec, block_t **pp_block )
{
- decoder_sys_t *p_sys = p_dec->p_sys;
-
- p_block->i_dts = p_block->i_pts = p_sys->i_pts;
-
- if( p_sys->b_invert )
- {
- picture_t pic;
- uint8_t *p_tmp, *p_pixels;
- int i, j;
+ block_t *p_block = DecodeBlock( p_dec, pp_block );
+ if( p_block == NULL )
+ return NULL;
- /* Fill in picture_t fields */
- vout_InitPicture( VLC_OBJECT(p_dec), &pic, p_dec->fmt_out.i_codec,
- p_dec->fmt_out.video.i_width,
- p_dec->fmt_out.video.i_height, VOUT_ASPECT_FACTOR );
+ decoder_sys_t *p_sys = p_dec->p_sys;
- if( !pic.i_planes )
- {
- msg_Err( p_dec, "unsupported chroma" );
- return p_block;
- }
+ /* Date management: 1 frame per packet */
+ p_block->i_dts = p_block->i_pts = date_Get( &p_sys->pts );
+ date_Increment( &p_sys->pts, 1 );
+ return p_block;
+}
- p_tmp = malloc( pic.p[0].i_pitch );
- if( !p_tmp )
- return p_block;
- p_pixels = p_block->p_buffer;
- for( i = 0; i < pic.i_planes; i++ )
- {
- int i_pitch = pic.p[i].i_pitch;
- uint8_t *p_top = p_pixels;
- uint8_t *p_bottom = p_pixels + i_pitch *
- (pic.p[i].i_visible_lines - 1);
-
- for( j = 0; j < pic.p[i].i_visible_lines / 2; j++ )
- {
- vlc_memcpy( p_tmp, p_bottom, pic.p[i].i_visible_pitch );
- vlc_memcpy( p_bottom, p_top, pic.p[i].i_visible_pitch );
- vlc_memcpy( p_top, p_tmp, pic.p[i].i_visible_pitch );
- p_top += i_pitch;
- p_bottom -= i_pitch;
- }
-
- p_pixels += i_pitch * pic.p[i].i_lines;
- }
- free( p_tmp );
- }
+static int OpenPacketizer( vlc_object_t *p_this )
+{
+ decoder_t *p_dec = (decoder_t *)p_this;
- return p_block;
+ int ret = OpenCommon( p_dec );
+ if( ret == VLC_SUCCESS )
+ p_dec->pf_packetize = SendFrame;
+ return ret;
}
-/*****************************************************************************
- * CloseDecoder: decoder destruction
- *****************************************************************************/
-static void CloseDecoder( vlc_object_t *p_this )
+/**
+ * Common deinitialization
+ */
+static void CloseCommon( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
free( p_dec->p_sys );
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