--- /dev/null
+/*****************************************************************************
+ * ogg.c
+ *****************************************************************************
+ * Copyright (C) 2001, 2002 VideoLAN
+ * $Id: ogg.c,v 1.1 2003/02/24 23:27:20 fenrir Exp $
+ *
+ * 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
+ * (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.
+ *
+ * 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.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include <vlc/vlc.h>
+#include <vlc/input.h>
+#include <vlc/sout.h>
+
+#include "codecs.h"
+
+#include <ogg/ogg.h>
+
+/*****************************************************************************
+ * Exported prototypes
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+static int Capability( sout_instance_t *, int, void *, void * );
+static int AddStream( sout_instance_t *, sout_input_t * );
+static int DelStream( sout_instance_t *, sout_input_t * );
+static int Mux ( sout_instance_t * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( _("Ogg/ogm muxer") );
+ set_capability( "sout mux", 10 );
+ add_shortcut( "ogg" );
+ add_shortcut( "ogm" );
+ set_callbacks( Open, Close );
+vlc_module_end();
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+#define FREE( p ) if( p ) { free( p ); (p) = NULL; }
+
+#define PACKET_TYPE_HEADER 0x01
+#define PACKET_TYPE_COMMENT 0x03
+
+#define PACKET_IS_SYNCPOINT 0x08
+
+typedef struct __attribute__((__packed__))
+{
+ int32_t i_width;
+ int32_t i_height;
+} ogg_stream_header_video_t;
+
+typedef struct __attribute__((__packed__))
+{
+ int16_t i_channels;
+ int16_t i_block_align;
+ int32_t i_avgbytespersec;
+} ogg_stream_header_audio_t;
+
+typedef struct __attribute__((__packed__))
+{
+ uint8_t i_packet_type;
+
+ char stream_type[8];
+ char sub_type[4];
+
+ int32_t i_size;
+
+ int64_t i_time_unit;
+ int64_t i_samples_per_unit;
+ int32_t i_default_len;
+
+ int32_t i_buffer_size;
+ int16_t i_bits_per_sample;
+ int16_t i_padding_0; // hum hum
+ union
+ {
+ ogg_stream_header_video_t video;
+ ogg_stream_header_audio_t audio;
+ } header;
+
+} ogg_stream_header_t;
+
+
+typedef struct
+{
+ int i_cat;
+ int i_fourcc;
+
+ ogg_stream_header_t header;
+
+ int i_packet_no;
+
+ mtime_t i_dts;
+ mtime_t i_length;
+ ogg_stream_state os;
+
+} ogg_stream_t;
+
+typedef struct sout_mux_s
+{
+ int b_write_header;
+ int i_streams;
+
+} sout_mux_t;
+
+#define SetWLE( p, v ) _SetWLE( (uint8_t*)p, v)
+static void _SetWLE( uint8_t *p, uint16_t i_dw )
+{
+ p[1] = ( i_dw >> 8 )&0xff;
+ p[0] = ( i_dw )&0xff;
+}
+
+#define SetDWLE( p, v ) _SetDWLE( (uint8_t*)p, v)
+static void _SetDWLE( uint8_t *p, uint32_t i_dw )
+{
+ p[3] = ( i_dw >> 24 )&0xff;
+ p[2] = ( i_dw >> 16 )&0xff;
+ p[1] = ( i_dw >> 8 )&0xff;
+ p[0] = ( i_dw )&0xff;
+}
+#define SetQWLE( p, v ) _SetQWLE( (uint8_t*)p, v)
+static void _SetQWLE( uint8_t *p, uint64_t i_qw )
+{
+ SetDWLE( p, i_qw&0xffffffff );
+ SetDWLE( p+4, ( i_qw >> 32)&0xffffffff );
+}
+
+static void OggSetDate( sout_buffer_t *, mtime_t , mtime_t );
+static sout_buffer_t *OggStreamFlush( sout_instance_t *, ogg_stream_state *, mtime_t );
+
+/*****************************************************************************
+ * Open:
+ *****************************************************************************/
+static int Open( vlc_object_t *p_this )
+{
+ sout_instance_t *p_sout = (sout_instance_t*)p_this;
+ sout_mux_t *p_mux;
+
+ msg_Info( p_sout, "Open" );
+
+ p_mux = malloc( sizeof( sout_mux_t ) );
+ p_mux->i_streams = 0;
+ p_mux->b_write_header = VLC_TRUE;
+
+ p_sout->p_mux_data = (void*)p_mux;
+ p_sout->pf_mux_capacity = Capability;
+ p_sout->pf_mux_addstream = AddStream;
+ p_sout->pf_mux_delstream = DelStream;
+ p_sout->pf_mux = Mux;
+ p_sout->i_mux_preheader = 1;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Close:
+ *****************************************************************************/
+
+static void Close( vlc_object_t * p_this )
+{
+ sout_instance_t *p_sout = (sout_instance_t*)p_this;
+ sout_mux_t *p_mux = (sout_mux_t*)p_sout->p_mux_data;
+
+ msg_Info( p_sout, "Close" );
+
+ free( p_mux );
+}
+
+static int Capability( sout_instance_t *p_sout, int i_query, void *p_args, void *p_answer )
+{
+ switch( i_query )
+ {
+ case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
+ *(vlc_bool_t*)p_answer = VLC_FALSE;
+ return( SOUT_MUX_CAP_ERR_OK );
+ default:
+ return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
+ }
+}
+
+static int AddStream( sout_instance_t *p_sout, sout_input_t *p_input )
+{
+ sout_mux_t *p_mux = (sout_mux_t*)p_sout->p_mux_data;
+ ogg_stream_t *p_stream;
+
+ BITMAPINFOHEADER *p_bih;
+ WAVEFORMATEX *p_wf;
+
+ msg_Dbg( p_sout, "adding input" );
+ p_input->p_mux_data = (void*)p_stream = malloc( sizeof( ogg_stream_t ) );
+
+ p_stream->i_cat = p_input->input_format.i_cat;
+ p_stream->i_fourcc = p_input->input_format.i_fourcc;
+ p_stream->i_packet_no = 0;
+
+ p_stream->header.i_packet_type = PACKET_TYPE_HEADER;
+ switch( p_input->input_format.i_cat )
+ {
+ case VIDEO_ES:
+ p_bih = (BITMAPINFOHEADER*)p_input->input_format.p_format;
+ switch( p_input->input_format.i_fourcc )
+ {
+ case VLC_FOURCC( 'm', 'p','4', 'v' ):
+ case VLC_FOURCC( 'D', 'I','V', '3' ):
+ memcpy( p_stream->header.stream_type,
+ "video ",
+ 8 );
+ if( p_input->input_format.i_fourcc == VLC_FOURCC( 'm', 'p','4', 'v' ) )
+ {
+ memcpy( p_stream->header.sub_type, "XVID", 4 );
+ }
+ else if( p_input->input_format.i_fourcc == VLC_FOURCC( 'D', 'I','V', '3' ) )
+ {
+ memcpy( p_stream->header.sub_type, "DIV3", 4 );
+ }
+ SetDWLE( &p_stream->header.i_size, sizeof( ogg_stream_header_t ) - 1);
+ /* XXX this won't make mplayer happy, but vlc can read that without any problem so...*/
+ SetQWLE( &p_stream->header.i_time_unit, 10*1000 );//(int64_t)10*1000*1000/(int64_t)25 ); // FIXME (25fps)
+ SetQWLE( &p_stream->header.i_samples_per_unit, 1 );
+ SetDWLE( &p_stream->header.i_default_len, 0 ); /* ??? */
+ SetDWLE( &p_stream->header.i_buffer_size, 1024*1024 );
+ SetWLE( &p_stream->header.i_bits_per_sample, 0 );
+ if( p_bih )
+ {
+ SetDWLE( &p_stream->header.header.video.i_width, p_bih->biWidth );
+ SetDWLE( &p_stream->header.header.video.i_height, p_bih->biHeight );
+ }
+ else
+ {
+ SetDWLE( &p_stream->header.header.video.i_width, 0 );
+ SetDWLE( &p_stream->header.header.video.i_height, 0 );
+ }
+ break;
+ default:
+ FREE( p_input->p_mux_data );
+ return( VLC_EGENERIC );
+ }
+ break;
+ case AUDIO_ES:
+ p_wf = (WAVEFORMATEX*)p_input->input_format.p_format;
+ switch( p_input->input_format.i_fourcc )
+ {
+ case VLC_FOURCC( 'm', 'p','g', 'a' ):
+ case VLC_FOURCC( 'a', '5','2', ' ' ):
+ memcpy( p_stream->header.stream_type,
+ "audio ",
+ 8 );
+ if( p_input->input_format.i_fourcc == VLC_FOURCC( 'm', 'p','g', 'a' ) )
+ {
+ memcpy( p_stream->header.sub_type, "55 ", 4 );
+ }
+ else if( p_input->input_format.i_fourcc == VLC_FOURCC( 'a', '5','2', ' ' ) )
+ {
+ memcpy( p_stream->header.sub_type, "2000", 4 );
+ }
+ SetDWLE( &p_stream->header.i_size, sizeof( ogg_stream_header_t ) - 1);
+ SetQWLE( &p_stream->header.i_time_unit, 1000000 ); /* is it used ? */
+ SetDWLE( &p_stream->header.i_default_len, 0 ); /* ??? */
+ SetDWLE( &p_stream->header.i_buffer_size, 30*1024 );
+ if( p_wf )
+ {
+ SetQWLE( &p_stream->header.i_samples_per_unit, p_wf->nSamplesPerSec );
+ SetWLE( &p_stream->header.i_bits_per_sample, p_wf->wBitsPerSample );
+ SetDWLE( &p_stream->header.header.audio.i_channels, p_wf->nChannels );
+ SetDWLE( &p_stream->header.header.audio.i_block_align, p_wf->nBlockAlign );
+ SetDWLE( &p_stream->header.header.audio.i_avgbytespersec, p_wf->nAvgBytesPerSec );
+ }
+ else
+ {
+ /* perhaps it's better to fail */
+ SetQWLE( &p_stream->header.i_samples_per_unit, 44100 );
+ SetWLE( &p_stream->header.i_bits_per_sample, 0 );
+ SetDWLE( &p_stream->header.header.audio.i_channels, 2 );
+ SetDWLE( &p_stream->header.header.audio.i_block_align, 0 );
+ SetDWLE( &p_stream->header.header.audio.i_avgbytespersec, 0 );
+ }
+ break;
+ case VLC_FOURCC( 'v', 'o', 'r', 'b' ):
+ default:
+ FREE( p_input->p_mux_data );
+ return( VLC_EGENERIC );
+ }
+ break;
+ default:
+ FREE( p_input->p_mux_data );
+ return( VLC_EGENERIC );
+ }
+
+ ogg_stream_init (&p_stream->os, rand ());
+
+ p_mux->i_streams++;
+ return( VLC_SUCCESS );
+}
+
+static int DelStream( sout_instance_t *p_sout, sout_input_t *p_input )
+{
+ ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_mux_data;
+ sout_buffer_t *p_og;
+
+ msg_Dbg( p_sout, "removing input" );
+
+ /* flush all remaining data */
+
+ p_og = OggStreamFlush( p_sout, &p_stream->os, 0 );
+ OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
+
+ sout_AccessOutWrite( p_sout->p_access, p_og );
+
+ ogg_stream_clear( &p_stream->os );
+
+ FREE( p_input->p_mux_data );
+ return( 0 );
+}
+
+/*
+ * TODO move this function to src/stream_output.c (used by nearly all muxers)
+ */
+static int MuxGetStream( sout_instance_t *p_sout,
+ int *pi_stream,
+ mtime_t *pi_dts )
+{
+ mtime_t i_dts;
+ int i_stream;
+ int i;
+
+ for( i = 0, i_dts = 0, i_stream = -1; i < p_sout->i_nb_inputs; i++ )
+ {
+ sout_fifo_t *p_fifo;
+
+ p_fifo = p_sout->pp_inputs[i]->p_fifo;
+
+ if( p_fifo->i_depth > 1 )
+ {
+ sout_buffer_t *p_buf;
+
+ p_buf = sout_FifoShow( p_fifo );
+ if( i_stream < 0 || p_buf->i_dts < i_dts )
+ {
+ i_dts = p_buf->i_dts;
+ i_stream = i;
+ }
+ }
+ else
+ {
+ return( -1 ); // wait that all fifo have at least 2 packets
+ }
+ }
+ if( pi_stream )
+ {
+ *pi_stream = i_stream;
+ }
+ if( pi_dts )
+ {
+ *pi_dts = i_dts;
+ }
+ return( i_stream );
+}
+
+
+static sout_buffer_t *OggStreamFlush( sout_instance_t *p_sout,
+ ogg_stream_state *p_os,
+ mtime_t i_pts )
+{
+ sout_buffer_t *p_og, *p_og_first = NULL;
+ ogg_page og;
+
+ for( ;; )
+ {
+ /* flush all data */
+ int i_result;
+ int i_size;
+ if( ( i_result = ogg_stream_flush( p_os, &og ) ) == 0 )
+ {
+ break;
+ }
+ i_size = og.header_len + og.body_len;
+ p_og = sout_BufferNew( p_sout, i_size);
+
+ memcpy( p_og->p_buffer,
+ og.header,
+ og.header_len );
+ memcpy( p_og->p_buffer + og.header_len,
+ og.body,
+ og.body_len );
+ p_og->i_size = i_size;
+ p_og->i_dts = 0;
+ p_og->i_pts = i_pts;
+ p_og->i_length = 0;
+
+ i_pts = 0; // write it only once
+
+ sout_BufferChain( &p_og_first, p_og );
+ }
+
+ return( p_og_first );
+}
+static sout_buffer_t *OggStreamPageOut( sout_instance_t *p_sout,
+ ogg_stream_state *p_os,
+ mtime_t i_pts )
+{
+ sout_buffer_t *p_og, *p_og_first = NULL;
+ ogg_page og;
+
+ for( ;; )
+ {
+ /* flush all data */
+ int i_result;
+ int i_size;
+ if( ( i_result = ogg_stream_pageout( p_os, &og ) ) == 0 )
+ {
+ break;
+ }
+ i_size = og.header_len + og.body_len;
+ p_og = sout_BufferNew( p_sout, i_size);
+
+ memcpy( p_og->p_buffer,
+ og.header,
+ og.header_len );
+ memcpy( p_og->p_buffer + og.header_len,
+ og.body,
+ og.body_len );
+ p_og->i_size = i_size;
+ p_og->i_dts = 0;
+ p_og->i_pts = i_pts;
+ p_og->i_length = 0;
+
+ i_pts = 0; // write them only once
+
+ sout_BufferChain( &p_og_first, p_og );
+ }
+
+ return( p_og_first );
+}
+static sout_buffer_t *OggCreateHeader( sout_instance_t *p_sout, mtime_t i_dts )
+{
+ sout_buffer_t *p_hdr = NULL;
+ sout_buffer_t *p_og;
+ ogg_packet op;
+ int i;
+
+ /* write header for each stream */
+ for( i = 0; i < p_sout->i_nb_inputs; i++ )
+ {
+ ogg_stream_t *p_stream;
+
+ p_stream = (ogg_stream_t*)p_sout->pp_inputs[i]->p_mux_data;
+
+ if( p_stream->i_fourcc == VLC_FOURCC( 'v', 'o', 'r', 'b' ) )
+ {
+ /* special case */
+ }
+ else
+ {
+ /* ds header */
+#if 0
+ uint8_t com[128];
+ int i_com;
+#endif
+
+ /* header */
+ op.packet = (uint8_t*)&p_stream->header;
+ op.bytes = sizeof( ogg_stream_t );
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+#if 0
+ /* I don't know why but this produce broken file */
+ /* comment */
+ com[0] = PACKET_TYPE_COMMENT;
+ i_com = snprintf( &com[1], 128, "VLC 0.5.x stream output" ) + 1;
+ op.packet = com;
+ op.bytes = i_com;
+ op.b_o_s = 0;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+#endif
+ }
+
+ p_og = OggStreamFlush( p_sout, &p_stream->os, 0 );
+ sout_BufferChain( &p_hdr, p_og );
+ }
+
+ return( p_hdr );
+}
+
+
+static void OggSetDate( sout_buffer_t *p_og, mtime_t i_dts, mtime_t i_length )
+{
+ int i_count;
+ sout_buffer_t *p_tmp;
+ mtime_t i_delta;
+
+ for( p_tmp = p_og, i_count = 0; p_tmp != NULL; p_tmp = p_tmp->p_next )
+ {
+ i_count++;
+ }
+ i_delta = i_length / i_count;
+
+ for( p_tmp = p_og; p_tmp != NULL; p_tmp = p_tmp->p_next )
+ {
+ p_tmp->i_dts = i_dts;
+ p_tmp->i_length = i_delta;
+
+ i_dts += i_delta;
+ }
+}
+
+static int Mux ( sout_instance_t *p_sout )
+{
+ sout_mux_t *p_mux = (sout_mux_t*)p_sout->p_mux_data;
+ sout_buffer_t *p_og = NULL;
+ int i_stream;
+ mtime_t i_dts;
+
+ if( p_mux->b_write_header )
+ {
+ if( MuxGetStream( p_sout, &i_stream, &i_dts) < 0 )
+ {
+ return( VLC_SUCCESS );
+ }
+ sout_BufferChain( &p_og, OggCreateHeader( p_sout, i_dts ) );
+ p_mux->b_write_header = VLC_FALSE;
+ }
+
+ for( ;; )
+ {
+ sout_input_t *p_input;
+ ogg_stream_t *p_stream;
+ sout_buffer_t *p_data;
+ ogg_packet op;
+
+ if( MuxGetStream( p_sout, &i_stream, &i_dts) < 0 )
+ {
+ return( VLC_SUCCESS );
+ }
+
+ p_input = p_sout->pp_inputs[i_stream];
+ p_stream = (ogg_stream_t*)p_input->p_mux_data;
+
+ p_data = sout_FifoGet( p_input->p_fifo );
+
+ sout_BufferReallocFromPreHeader( p_sout, p_data, 1 );
+ p_data->p_buffer[0] = PACKET_IS_SYNCPOINT; // FIXME
+
+ op.packet = p_data->p_buffer;
+ op.bytes = p_data->i_size;
+ op.b_o_s = 0;
+ op.e_o_s = 0;
+ if( p_stream->i_cat == AUDIO_ES )
+ {
+ /* number of sample from begining */
+ op.granulepos = i_dts * p_stream->header.i_samples_per_unit / (int64_t)1000000;
+ }
+ else if( p_stream->i_cat == VIDEO_ES )
+ {
+ op.granulepos = i_dts/1000;//p_stream->i_packet_no;
+ }
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+
+ sout_BufferChain( &p_og,
+ OggStreamPageOut( p_sout,
+ &p_stream->os,
+ p_data->i_pts ) );
+
+ if( p_og )
+ {
+ OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
+ p_stream->i_dts = -1;
+ p_stream->i_length = 0;;
+ sout_AccessOutWrite( p_sout->p_access, p_og );
+
+ p_og = NULL;
+ }
+ else
+ {
+ if( p_stream->i_dts < 0 )
+ {
+ p_stream->i_dts = p_data->i_dts;
+ }
+ p_stream->i_length += p_data->i_length;
+ }
+
+ sout_BufferDelete( p_sout, p_data );
+ }
+
+ return( VLC_SUCCESS );
+}
+
projects / vlc / commitdiff