Commit 55a03066 authored by Yuudai Yamashigi's avatar Yuudai Yamashigi Committed by Videolan

stream_filter: add ARIB STD-B25 virtual cam module

parent a9d48170
......@@ -29,6 +29,9 @@ Demuxers:
* Support WMV and WMAV in MP4/mov, aka Flip4Mac files
* Support bitmap audio channel reordering in MP4/mov
Stream filter:
* Added ARIB STD-B25 TS streams decoder
Video ouput:
* Wayland shell surface window provider
* Wayland shared memory video output
......
......@@ -3032,6 +3032,11 @@ AS_IF( [test "${enable_aribsub}" != "no" ],[
])
AM_CONDITIONAL([HAVE_ARIBB24], [test x"${have_aribb24}" = x"yes"])
dnl
dnl ARIB B25
dnl
PKG_ENABLE_MODULES_VLC([ARIBB25], [aribcam], [aribb25 >= 0.2.6], [ARIB STD-B25], [auto])
dnl
dnl kate decoder plugin
dnl
......
......@@ -37,6 +37,7 @@ $Id$
* android_surface: video output for Android, based on Surface
* antiflicker: anti-flicker video filter
* araw: Pseudo audio decoder for raw PCM
* aribcam: ARIB STD-B25 decoder/virtual CAM
* aribsub: ARIB subtitles decoder
* asf: ASF demuxer
* atmo: Ambilight-like video-output
......
......@@ -120,3 +120,10 @@ endif
librecord_plugin_la_SOURCES = stream_filter/record.c
stream_filter_LTLIBRARIES += librecord_plugin.la
libaribcam_plugin_la_SOURCES = stream_filter/aribcam.c
libaribcam_plugin_la_CFLAGS = $(AM_CFLAGS) $(ARIBB25_CFLAGS)
libaribcam_plugin_la_LDFLAGS = $(ARIBB25_LDFLAGS) -rpath '$(stream_filterdir)'
libaribcam_plugin_la_LIBADD = $(ARIBB25_LIBS)
stream_filter_LTLIBRARIES += $(LTLIBaribcam)
EXTRA_LTLIBRARIES += libaribcam_plugin.la
/*****************************************************************************
* aribcam.c : ARIB STB-B25 software CAM stream filter
*****************************************************************************
* Copyright (C) 2014 VideoLAN and authors
*
* 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 Lesser General Public License for more details.
*
* 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.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_stream.h>
#include <inttypes.h>
#include <assert.h>
#include <arib-std-b25/arib_std_b25.h>
#include <arib-std-b25/arib_std_b25_error_code.h>
#include <arib-std-b25/b_cas_card.h>
#include <arib-std-b25/b_cas_card_error_code.h>
static int Open(vlc_object_t *);
static void Close(vlc_object_t *);
vlc_module_begin ()
set_category (CAT_INPUT)
set_subcategory (SUBCAT_INPUT_STREAM_FILTER)
set_capability ("stream_filter", 0)
add_shortcut("aribcam")
set_description (N_("ARIB STD-B25 Cam module"))
set_callbacks (Open, Close)
vlc_module_end ()
struct error_messages_s
{
const int8_t i_error;
const char * const psz_error;
};
static const struct error_messages_s const b25_errors[] =
{
{ ARIB_STD_B25_ERROR_INVALID_PARAM, "Invalid parameter" },
{ ARIB_STD_B25_ERROR_NO_ENOUGH_MEMORY , "Not enough memory" },
{ ARIB_STD_B25_ERROR_NON_TS_INPUT_STREAM, "Non TS input stream" },
{ ARIB_STD_B25_ERROR_NO_PAT_IN_HEAD_16M, "No PAT in first 16MB" },
{ ARIB_STD_B25_ERROR_NO_PMT_IN_HEAD_32M, "No PMT in first 32MB" },
{ ARIB_STD_B25_ERROR_NO_ECM_IN_HEAD_32M, "No ECM in first 32MB" },
{ ARIB_STD_B25_ERROR_EMPTY_B_CAS_CARD, "Empty BCAS card" },
{ ARIB_STD_B25_ERROR_INVALID_B_CAS_STATUS, "Invalid BCAS status" },
{ ARIB_STD_B25_ERROR_ECM_PROC_FAILURE, "ECM Proc failure" },
{ ARIB_STD_B25_ERROR_DECRYPT_FAILURE, "Decryption failure" },
{ ARIB_STD_B25_ERROR_PAT_PARSE_FAILURE, "PAT Parsing failure" },
{ ARIB_STD_B25_ERROR_PMT_PARSE_FAILURE, "PMT Parsing failure" },
{ ARIB_STD_B25_ERROR_ECM_PARSE_FAILURE, "ECM Parsing failure" },
{ ARIB_STD_B25_ERROR_CAT_PARSE_FAILURE, "CAT Parsing failure" },
{ ARIB_STD_B25_ERROR_EMM_PARSE_FAILURE, "EMM Parsing failure" },
{ ARIB_STD_B25_ERROR_EMM_PROC_FAILURE, "EMM Proc failure" },
{ 0, NULL },
};
static const struct error_messages_s const bcas_errors[] =
{
{ B_CAS_CARD_ERROR_INVALID_PARAMETER, "Invalid parameter" },
{ B_CAS_CARD_ERROR_NOT_INITIALIZED, "Card not initialized" },
{ B_CAS_CARD_ERROR_NO_SMART_CARD_READER, "No smart card reader" },
{ B_CAS_CARD_ERROR_ALL_READERS_CONNECTION_FAILED, "Reader connection failed" },
{ B_CAS_CARD_ERROR_NO_ENOUGH_MEMORY, "Not enough memory" },
{ B_CAS_CARD_ERROR_TRANSMIT_FAILED, "Transmission failed" },
{ 0, NULL },
};
struct stream_sys_t
{
ARIB_STD_B25 *p_b25;
B_CAS_CARD *p_bcas;
struct
{
uint8_t *p_buf;
size_t i_size;
block_t *p_list;
} remain;
size_t i_pos;
bool b_unitsizeset;
};
static int Peek( stream_t *, const uint8_t **, unsigned int );
static const char * GetErrorMessage( const int i_error,
const struct error_messages_s const *p_errors_messages )
{
int i = 0;
while( p_errors_messages[i].psz_error )
{
if ( p_errors_messages[i].i_error == i_error )
return p_errors_messages[i].psz_error;
i++;
}
return "unkown error";
}
static size_t RemainRead( stream_t *p_stream, uint8_t *p_data, size_t i_toread, bool b_peek )
{
stream_sys_t *p_sys = p_stream->p_sys;
size_t i_total = 0;
while( p_sys->remain.p_list && i_toread )
{
size_t i_copy = __MIN( i_toread, p_sys->remain.p_list->i_buffer );
memcpy( p_data, p_sys->remain.p_list->p_buffer, i_copy );
i_toread -= i_copy;
i_total += i_copy;
p_data += i_copy;
if ( !b_peek )
{
/* update block data pointer and release if no longer needed */
p_sys->remain.p_list->i_buffer -= i_copy;
p_sys->remain.p_list->p_buffer += i_copy;
p_sys->remain.i_size -= i_copy;
if ( p_sys->remain.p_list->i_buffer == 0 )
{
block_t *p_prevhead = p_sys->remain.p_list;
p_sys->remain.p_list = p_sys->remain.p_list->p_next;
block_Release( p_prevhead );
}
}
else
p_sys->remain.p_list = p_sys->remain.p_list->p_next;
}
return i_total;
}
static bool RemainAdd( stream_t *p_stream, const uint8_t *p_data, size_t i_size )
{
stream_sys_t *p_sys = p_stream->p_sys;
if ( i_size == 0 )
return true;
block_t *p_block = block_Alloc( i_size );
if ( !p_block )
return false;
memcpy( p_block->p_buffer, p_data, i_size );
p_block->i_buffer = i_size;
block_ChainAppend( & p_sys->remain.p_list, p_block );
p_sys->remain.i_size += i_size;
return true;
}
static void RemainFlush( stream_sys_t *p_sys )
{
block_ChainRelease( p_sys->remain.p_list );
p_sys->remain.p_list = NULL;
p_sys->remain.i_size = 0;
}
#define ALL_READY (UNIT_SIZE_READY|ECM_READY|PMT_READY)
static int DecoderRead( stream_t *p_stream, uint8_t *p_dst, int i_toread, bool b_peek )
{
stream_sys_t *p_sys = p_stream->p_sys;
ARIB_STD_B25_BUFFER getbuf = { NULL, 0 };
int i_total_read = 0;
int i_ret;
if ( !p_dst || ! i_toread )
return -1;
/* Use data from previous reads */
size_t i_fromremain = RemainRead( p_stream, p_dst, i_toread, b_peek );
i_toread -= i_fromremain;
i_total_read += i_fromremain;
while( i_toread )
{
do
{
getbuf.size = 0;
i_ret = p_sys->p_b25->get( p_sys->p_b25, &getbuf );
if ( i_ret < 0 )
msg_Err( p_stream, "decoder get failed: %s",
GetErrorMessage( i_ret, b25_errors ) );
/* If the decoders needs buffering or data is not ready, push some */
if ( i_ret == 0 && getbuf.size == 0 )
{
/* make use of the existing buffer,
overwritten by decoder data later */
int i_srcread = stream_Read( p_stream->p_source, p_dst, i_toread );
if ( i_srcread > 0 )
{
ARIB_STD_B25_BUFFER putbuf = { p_dst, i_srcread };
i_ret = p_sys->p_b25->put( p_sys->p_b25, &putbuf );
if ( i_ret < 0 )
msg_Err( p_stream, "decoder put failed: %s",
GetErrorMessage( i_ret, b25_errors ) );
}
else
{
if ( i_srcread < 0 )
msg_Err( p_stream, "Can't read %d bytes from source stream: %d", i_toread, i_srcread );
i_ret = -1;
}
}
}
while ( i_ret == 0 && getbuf.size == 0 );
if ( i_ret < 0 )
return -1;
if ( b_peek )
{
/* put everything in remain */
RemainAdd( p_stream, getbuf.data, getbuf.size );
}
else
{
memcpy( p_dst, getbuf.data, __MIN(getbuf.size, i_toread) );
if ( getbuf.size > i_toread )
{
/* Hold remaining data for next call */
RemainAdd( p_stream, getbuf.data + i_toread, getbuf.size - i_toread );
}
}
i_total_read += __MIN(getbuf.size, i_toread);
p_dst += __MIN(getbuf.size, i_toread);
i_toread -= __MIN(getbuf.size, i_toread);
}
return i_total_read;
}
static int Read( stream_t *p_stream, void *p_buf, unsigned int i_toread )
{
stream_sys_t *p_sys = p_stream->p_sys;
/* We force unit size from 1st TS packet as the lib wants to auto detect
size but requires larger amount of data for that purpose */
if ( !p_sys->b_unitsizeset )
{
if ( i_toread >= 188 && i_toread <= 320 )
p_sys->b_unitsizeset = ! p_sys->p_b25->set_unit_size( p_sys->p_b25, i_toread );
if ( !p_sys->b_unitsizeset )
msg_Warn( p_stream, "Unit size not set." );
else
msg_Dbg( p_stream, "Set unit size to %u", i_toread );
}
int i_read = DecoderRead( p_stream, p_buf, i_toread, false );
if ( i_read < 0 )
return -1;
else
p_sys->i_pos += i_read;
return i_read;
}
/**
*
*/
static int Peek( stream_t *p_stream, const uint8_t **pp_buf, unsigned int i_len )
{
stream_sys_t *p_sys = p_stream->p_sys;
i_len = __MAX(ARIB_STD_B25_TS_PROBING_MIN_DATA, i_len);
if ( i_len > p_sys->remain.i_size )
{
uint8_t *p_tmpbuf = malloc( i_len - p_sys->remain.i_size );
DecoderRead( p_stream, p_tmpbuf, i_len - p_sys->remain.i_size, true );
free( p_tmpbuf );
}
if ( !p_sys->remain.p_list )
{
assert(p_sys->remain.i_size == 0);
/* might not be enough data in the stream to allow returning data */
return 0;
}
if ( p_sys->remain.p_list->i_buffer < i_len )
{
p_sys->remain.p_list = block_ChainGather( p_sys->remain.p_list );
if ( !p_sys->remain.p_list )
{
p_sys->remain.i_size = 0;
return 0;
}
}
*pp_buf = p_sys->remain.p_list->p_buffer;
return __MIN(i_len, p_sys->remain.i_size);
}
static int Seek( stream_t *p_stream, uint64_t i_pos )
{
int i_ret = stream_Seek( p_stream->p_source, i_pos );
if ( i_ret == VLC_SUCCESS )
{
RemainFlush( p_stream->p_sys );
p_stream->p_sys->i_pos = i_pos;
}
return i_ret;
}
/**
*
*/
static int Control( stream_t *p_stream, int i_query, va_list args )
{
switch( i_query )
{
case STREAM_GET_POSITION:
*va_arg( args, uint64_t *) = p_stream->p_sys->i_pos;
return VLC_SUCCESS;
case STREAM_SET_POSITION:
return Seek( p_stream, va_arg( args, uint64_t ) );
default:
return stream_vaControl( p_stream->p_source, i_query, args );
}
}
static int Open( vlc_object_t *p_object )
{
stream_t *p_stream = (stream_t *) p_object;
int64_t i_stream_size = stream_Size( p_stream->p_source );
if ( i_stream_size > 0 && i_stream_size < ARIB_STD_B25_TS_PROBING_MIN_DATA )
return VLC_EGENERIC;
stream_sys_t *p_sys = p_stream->p_sys = calloc( 1, sizeof(*p_sys) );
if (p_sys == NULL)
return VLC_ENOMEM;
p_sys->p_b25 = create_arib_std_b25();
if ( p_sys->p_b25 )
{
if ( p_sys->p_b25->set_multi2_round( p_sys->p_b25, 4 ) < 0 )
msg_Warn( p_stream, "cannot set B25 round number" );
if ( p_sys->p_b25->set_strip( p_sys->p_b25, 0 ) < 0 )
msg_Warn( p_stream, "cannot set B25 strip option" );
if ( p_sys->p_b25->set_emm_proc( p_sys->p_b25, 0 ) < 0 )
msg_Warn( p_stream, "cannot set B25 emm_proc" );
p_sys->p_bcas = create_b_cas_card();
if ( p_sys->p_bcas )
{
int i_code = p_sys->p_bcas->init( p_sys->p_bcas );
if ( i_code < 0 )
{
/* Card could be just missing */
msg_Warn( p_stream, "cannot initialize BCAS card (missing ?): %s",
GetErrorMessage( i_code, bcas_errors ) );
goto error;
}
B_CAS_ID bcasid;
if ( p_sys->p_bcas->get_id( p_sys->p_bcas, &bcasid ) == 0 )
{
for ( int32_t i=0; i<bcasid.count; i++)
{
msg_Dbg( p_stream, "BCAS card id 0x%"PRId64" initialized",
bcasid.data[i] );
}
}
B_CAS_INIT_STATUS bcas_status;
if ( p_sys->p_bcas->get_init_status( p_sys->p_bcas, &bcas_status ) == 0 )
{
msg_Dbg( p_stream, "BCAS card system id 0x%"PRIx32,
bcas_status.ca_system_id );
}
i_code = p_sys->p_b25->set_b_cas_card( p_sys->p_b25, p_sys->p_bcas );
if ( i_code < 0 )
{
msg_Err( p_stream, "cannot attach BCAS card to decoder: %s",
GetErrorMessage( i_code, bcas_errors ) );
goto error;
}
}
else
msg_Err( p_stream, "cannot create BCAS card" );
}
else
{
msg_Err( p_stream, "cannot create B25 instance" );
goto error;
}
p_sys->i_pos = stream_Tell( p_stream->p_source );
p_stream->pf_read = Read;
p_stream->pf_peek = Peek;
p_stream->pf_control = Control;
return VLC_SUCCESS;
error:
Close( VLC_OBJECT(p_stream) );
return VLC_EGENERIC;
}
static void Close ( vlc_object_t *p_object )
{
stream_t *p_stream = (stream_t *)p_object;
stream_sys_t *p_sys = p_stream->p_sys;
if ( p_sys->p_bcas )
p_sys->p_bcas->release( p_sys->p_bcas );
if ( p_sys->p_b25 )
p_sys->p_b25->release( p_sys->p_b25 );
free( p_sys );
}
......@@ -1015,6 +1015,7 @@ modules/services_discovery/udev.c
modules/services_discovery/upnp.cpp
modules/services_discovery/windrive.c
modules/services_discovery/xcb_apps.c
modules/stream_filter/aribcam.c
modules/stream_filter/dash/dash.cpp
modules/stream_filter/decomp.c
modules/stream_filter/hds/hds.c
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment