/*****************************************************************************
- * rawvideo.c: Pseudo audio decoder; for raw video data
+ * rawvideo.c: Pseudo video decoder/packetizer for raw video data
*****************************************************************************
- * Copyright (C) 2001, 2002 VideoLAN
- * $Id: rawvideo.c,v 1.3 2003/04/27 17:53:20 gbazin Exp $
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111, 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.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc/vout.h>
-#include <vlc/decoder.h>
-#include <vlc/input.h>
-
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h> /* strdup() */
-#include "codecs.h"
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-
-typedef struct
-{
- /* Input properties */
- decoder_fifo_t *p_fifo;
- int i_raw_size;
-
- /* Output properties */
-
- mtime_t pts;
-
- vout_thread_t *p_vout;
-
-} vdec_thread_t;
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-static int OpenDecoder ( vlc_object_t * );
-
-static int RunDecoder ( decoder_fifo_t * );
-static int InitThread ( vdec_thread_t * );
-static void DecodeThread ( vdec_thread_t * );
-static void EndThread ( vdec_thread_t * );
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_codec.h>
/*****************************************************************************
- * Module descriptor
+ * decoder_sys_t : raw video decoder descriptor
*****************************************************************************/
-
-vlc_module_begin();
- set_description( _("Pseudo Raw Video decoder") );
- set_capability( "decoder", 50 );
- set_callbacks( OpenDecoder, NULL );
-vlc_module_end();
-
-
-/*****************************************************************************
- * OpenDecoder: probe the decoder and return score
- *****************************************************************************
- * Tries to launch a decoder and return score so that the interface is able
- * to choose.
- *****************************************************************************/
-static int OpenDecoder( vlc_object_t *p_this )
+struct decoder_sys_t
{
- decoder_fifo_t *p_fifo = (decoder_fifo_t*) p_this;
-
- switch( p_fifo->i_fourcc )
- {
- /* 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'):
-
- /* Packed YUV */
- case VLC_FOURCC('Y','U','Y','2'):
- case VLC_FOURCC('U','Y','V','Y'):
-
- /* 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'):
-
- p_fifo->pf_run = RunDecoder;
- return VLC_SUCCESS;
-
- default:
- return VLC_EGENERIC;
- }
-
-}
+ /*
+ * Input properties
+ */
+ size_t size;
+ unsigned pitches[PICTURE_PLANE_MAX];
+ unsigned lines[PICTURE_PLANE_MAX];
+
+ /*
+ * Common properties
+ */
+ date_t pts;
+};
+
+/****************************************************************************
+ * Local prototypes
+ ****************************************************************************/
+static int OpenDecoder ( vlc_object_t * );
+static int OpenPacketizer( vlc_object_t * );
+static void CloseCommon ( vlc_object_t * );
/*****************************************************************************
- * RunDecoder: this function is called just after the thread is created
+ * Module descriptor
*****************************************************************************/
-static int RunDecoder( decoder_fifo_t *p_fifo )
+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 )
{
- vdec_thread_t *p_vdec;
- int b_error;
+ 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;
- if( !( p_vdec = malloc( sizeof( vdec_thread_t ) ) ) )
+ if( p_dec->fmt_in.video.i_width <= 0 || p_dec->fmt_in.video.i_height == 0 )
{
- msg_Err( p_fifo, "out of memory" );
- DecoderError( p_fifo );
- return( -1 );
+ 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;
}
- memset( p_vdec, 0, sizeof( vdec_thread_t ) );
- p_vdec->p_fifo = p_fifo;
-
- if( InitThread( p_vdec ) != 0 )
- {
- DecoderError( p_fifo );
- return( -1 );
- }
+ /* Allocate the memory needed to store the decoder's structure */
+ decoder_sys_t *p_sys = calloc(1, sizeof(*p_sys));
+ if( unlikely(p_sys == NULL) )
+ return VLC_ENOMEM;
- while( ( !p_vdec->p_fifo->b_die )&&( !p_vdec->p_fifo->b_error ) )
- {
- DecodeThread( p_vdec );
- }
+ 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;
+ es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
- if( ( b_error = p_vdec->p_fifo->b_error ) )
+ 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)
{
- DecoderError( p_vdec->p_fifo );
+ 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 );
}
- EndThread( p_vdec );
- if( b_error )
+ for( unsigned i = 0; i < dsc->plane_count; i++ )
{
- return( -1 );
+ 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;
}
- return( 0 );
+ p_dec->p_sys = p_sys;
+ return VLC_SUCCESS;
}
+/****************************************************************************
+ * DecodeBlock: the whole thing
+ ****************************************************************************
+ * This function must be fed with complete frames.
+ ****************************************************************************/
+static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
-#define FREE( p ) if( p ) { free( p ); p = NULL; }
+ if( pp_block == NULL || *pp_block == NULL )
+ return NULL;
+ block_t *p_block = *pp_block;
-/*****************************************************************************
- * InitThread: initialize data before entering main loop
- *****************************************************************************/
-static int InitThread( vdec_thread_t * p_vdec )
-{
- picture_t *p_pic;
- int i;
-
-#define bih ((BITMAPINFOHEADER*)p_vdec->p_fifo->p_bitmapinfoheader)
- if( bih == NULL )
- {
- msg_Err( p_vdec->p_fifo,
- "info missing, fatal" );
- return( VLC_EGENERIC );
- }
- if( bih->biWidth <= 0 || bih->biHeight <= 0 )
+ if( p_block->i_pts <= VLC_TS_INVALID && p_block->i_dts <= VLC_TS_INVALID &&
+ !date_Get( &p_sys->pts ) )
{
- msg_Err( p_vdec->p_fifo,
- "invalid display size %dx%d",
- bih->biWidth, bih->biHeight );
- return( VLC_EGENERIC );
+ /* We've just started the stream, wait for the first PTS. */
+ block_Release( p_block );
+ return NULL;
}
- p_vdec->p_vout = vout_Request( p_vdec->p_fifo, NULL,
- bih->biWidth, bih->biHeight,
- p_vdec->p_fifo->i_fourcc,
- VOUT_ASPECT_FACTOR * bih->biWidth /
- bih->biHeight );
-
- if( p_vdec->p_vout == NULL )
+ /* Date management: If there is a pts avaliable, use that. */
+ if( p_block->i_pts > VLC_TS_INVALID )
{
- msg_Err( p_vdec->p_fifo, "failled created vout" );
- return( VLC_EGENERIC );
+ date_Set( &p_sys->pts, p_block->i_pts );
}
-
- /* Get a 1 picture to be able to compute p_vdec->i_raw_size */
- p_pic = vout_CreatePicture( p_vdec->p_vout, 0, 0, 0 );
- if( p_pic == NULL )
+ else if( p_block->i_dts > VLC_TS_INVALID )
{
- msg_Err( p_vdec->p_fifo, "failled to get a vout picture" );
- return( VLC_EGENERIC );
+ /* 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 );
}
- p_vdec->i_raw_size = 0;
- for( i = 0; i < p_pic->i_planes; i++ )
+ if( p_block->i_buffer < p_sys->size )
{
- p_vdec->i_raw_size += p_pic->p[i].i_lines * p_pic->p[i].i_visible_pitch
- * p_pic->p[i].i_pixel_pitch;
- }
+ msg_Warn( p_dec, "invalid frame size (%zu < %zu)",
+ p_block->i_buffer, p_sys->size );
- vout_DestroyPicture( p_vdec->p_vout, p_pic );
+ block_Release( p_block );
+ return NULL;
+ }
- return( VLC_SUCCESS );
-#undef bih
+ *pp_block = NULL;
+ return p_block;
}
-
-static void FillPicture( pes_packet_t *p_pes, picture_t *p_pic )
+/*****************************************************************************
+ * FillPicture:
+ *****************************************************************************/
+static void FillPicture( decoder_t *p_dec, block_t *p_block, picture_t *p_pic )
{
- int i_plane;
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ const uint8_t *p_src = p_block->p_buffer;
- data_packet_t *p_data;
- uint8_t *p_src;
- int i_src;
-
- p_data = p_pes->p_first;
- p_src = p_data->p_payload_start;
- i_src = p_data->p_payload_end - p_data->p_payload_start;
-
- for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
+ for( int i = 0; i < p_pic->i_planes; i++ )
{
+ uint8_t *p_dst = p_pic->p[i].p_pixels;
- uint8_t *p_dst;
- int i_dst;
-
- p_dst = p_pic->p[i_plane].p_pixels;
- i_dst = p_pic->p[i_plane].i_pitch * p_pic->p[i_plane].i_lines;
-
- while( i_dst > 0 )
+ for( int x = 0; x < p_pic->p[i].i_visible_lines; x++ )
{
- int i_copy;
-
- i_copy = __MIN( i_src, i_dst );
- if( i_copy > 0 )
- {
- memcpy( p_dst, p_src, i_copy );
- }
- i_dst -= i_copy;
- p_dst += i_copy;
-
- i_src -= i_copy;
- if( i_src <= 0 )
- {
- do
- {
- p_data = p_data->p_next;
- if( p_data == NULL )
- {
- return;
- }
- p_src = p_data->p_payload_start;
- i_src = p_data->p_payload_end - p_data->p_payload_start;
- } while( i_src <= 0 );
- }
+ 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;
}
+
+ p_src += p_sys->pitches[i]
+ * (p_sys->lines[i] - p_pic->p[i].i_visible_lines);
}
}
/*****************************************************************************
- * DecodeThread: decodes a frame
+ * DecodeFrame: decodes a video frame.
*****************************************************************************/
-static void DecodeThread( vdec_thread_t *p_vdec )
+static picture_t *DecodeFrame( decoder_t *p_dec, block_t **pp_block )
{
- int i_size;
- pes_packet_t *p_pes;
- picture_t *p_pic;
+ block_t *p_block = DecodeBlock( p_dec, pp_block );
+ if( p_block == NULL )
+ return NULL;
- /* **** get frame **** */
- input_ExtractPES( p_vdec->p_fifo, &p_pes );
- if( !p_pes )
- {
- p_vdec->p_fifo->b_error = 1;
- return;
- }
- i_size = p_pes->i_pes_size;
+ decoder_sys_t *p_sys = p_dec->p_sys;
- if( i_size < p_vdec->i_raw_size )
+ /* Get a new picture */
+ picture_t *p_pic = decoder_NewPicture( p_dec );
+ if( p_pic == NULL )
{
- msg_Warn( p_vdec->p_fifo, "invalid frame size (%d < %d)", i_size, p_vdec->i_raw_size );
- input_DeletePES( p_vdec->p_fifo->p_packets_mgt, p_pes );
- return;
+ block_Release( p_block );
+ return NULL;
}
- /* **** get video picture **** */
- while( !(p_pic = vout_CreatePicture( p_vdec->p_vout, 0, 0, 0 ) ) )
- {
- if( p_vdec->p_fifo->b_die || p_vdec->p_fifo->b_error )
- {
- return;
- }
- msleep( VOUT_OUTMEM_SLEEP );
- }
+ FillPicture( p_dec, p_block, p_pic );
+ /* Date management: 1 frame per packet */
+ p_pic->date = date_Get( &p_dec->p_sys->pts );
+ date_Increment( &p_sys->pts, 1 );
- /* **** fill p_pic **** */
- FillPicture( p_pes, p_pic );
+ 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;
- /* **** display p_pic **** */
- vout_DatePicture( p_vdec->p_vout, p_pic, p_pes->i_pts);
- vout_DisplayPicture( p_vdec->p_vout, p_pic );
+ block_Release( p_block );
+ return p_pic;
+}
+static int OpenDecoder( vlc_object_t *p_this )
+{
+ decoder_t *p_dec = (decoder_t *)p_this;
- input_DeletePES( p_vdec->p_fifo->p_packets_mgt, p_pes );
+ int ret = OpenCommon( p_dec );
+ if( ret == VLC_SUCCESS )
+ p_dec->pf_decode_video = DecodeFrame;
+ return ret;
}
-
/*****************************************************************************
- * EndThread : faad decoder thread destruction
+ * SendFrame: send a video frame to the stream output.
*****************************************************************************/
-static void EndThread (vdec_thread_t *p_vdec)
+static block_t *SendFrame( decoder_t *p_dec, block_t **pp_block )
{
- if( p_vdec->p_vout )
- {
- vout_Request( p_vdec->p_fifo, p_vdec->p_vout, 0, 0, 0, 0 );
- }
+ block_t *p_block = DecodeBlock( p_dec, pp_block );
+ if( p_block == NULL )
+ return NULL;
- msg_Dbg( p_vdec->p_fifo, "raw video decoder closed" );
+ decoder_sys_t *p_sys = p_dec->p_sys;
- free( p_vdec );
+ /* 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;
+}
+
+static int OpenPacketizer( 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_packetize = SendFrame;
+ return ret;
+}
+
+/**
+ * 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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