avi.c
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上传日期:2009-03-27
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文件大小:27k
- /*****************************************************************************
- * avi.c
- *****************************************************************************
- * Copyright (C) 2001, 2002 VideoLAN
- * $Id: avi.c 8373 2004-08-04 20:09:31Z fenrir $
- *
- * 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
- *****************************************************************************/
- /* TODO: add OpenDML write support */
- #include <stdlib.h>
- #include <vlc/vlc.h>
- #include <vlc/input.h>
- #include <vlc/sout.h>
- #include "codecs.h"
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- vlc_module_begin();
- set_description( _("AVI muxer") );
- set_capability( "sout mux", 5 );
- add_shortcut( "avi" );
- set_callbacks( Open, Close );
- vlc_module_end();
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static int Control( sout_mux_t *, int, va_list );
- static int AddStream( sout_mux_t *, sout_input_t * );
- static int DelStream( sout_mux_t *, sout_input_t * );
- static int Mux ( sout_mux_t * );
- typedef struct avi_stream_s
- {
- int i_cat;
- char fcc[4];
- mtime_t i_duration; // in 祍
- int i_frames; // total frame count
- int64_t i_totalsize; // total stream size
- float f_fps;
- int i_bitrate;
- BITMAPINFOHEADER *p_bih;
- WAVEFORMATEX *p_wf;
- } avi_stream_t;
- typedef struct avi_idx1_entry_s
- {
- char fcc[4];
- uint32_t i_flags;
- uint32_t i_pos;
- uint32_t i_length;
- } avi_idx1_entry_t;
- typedef struct avi_idx1_s
- {
- unsigned int i_entry_count;
- unsigned int i_entry_max;
- avi_idx1_entry_t *entry;
- } avi_idx1_t;
- struct sout_mux_sys_t
- {
- vlc_bool_t b_write_header;
- int i_streams;
- int i_stream_video;
- off_t i_movi_size;
- avi_stream_t stream[100];
- avi_idx1_t idx1;
- off_t i_idx1_size;
- };
- // FIXME FIXME
- #define HDR_SIZE 10240
- /* Flags in avih */
- #define AVIF_HASINDEX 0x00000010 // Index at end of file?
- #define AVIF_ISINTERLEAVED 0x00000100
- #define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames?
- /* Flags for index */
- #define AVIIF_KEYFRAME 0x00000010L /* this frame is a key frame.*/
- static block_t *avi_HeaderCreateRIFF( sout_mux_t * );
- static block_t *avi_HeaderCreateidx1( sout_mux_t * );
- static void SetFCC( uint8_t *p, char *fcc )
- {
- memcpy( p, fcc, 4 );
- }
- /*****************************************************************************
- * Open:
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- sout_mux_t *p_mux = (sout_mux_t*)p_this;
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- msg_Dbg( p_mux, "AVI muxer opened" );
- p_sys = malloc( sizeof( sout_mux_sys_t ) );
- p_sys->i_streams = 0;
- p_sys->i_stream_video = -1;
- p_sys->i_movi_size = 0;
- p_sys->idx1.i_entry_count = 0;
- p_sys->idx1.i_entry_max = 10000;
- p_sys->idx1.entry = calloc( p_sys->idx1.i_entry_max,
- sizeof( avi_idx1_entry_t ) );
- p_sys->b_write_header = VLC_TRUE;
- p_mux->pf_control = Control;
- p_mux->pf_addstream = AddStream;
- p_mux->pf_delstream = DelStream;
- p_mux->pf_mux = Mux;
- p_mux->p_sys = p_sys;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close:
- *****************************************************************************/
- static void Close( vlc_object_t * p_this )
- {
- sout_mux_t *p_mux = (sout_mux_t*)p_this;
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- block_t *p_hdr, *p_idx1;
- int i_stream;
- msg_Dbg( p_mux, "AVI muxer closed" );
- /* first create idx1 chunk (write at the end of the stream */
- p_idx1 = avi_HeaderCreateidx1( p_mux );
- p_sys->i_idx1_size = p_idx1->i_buffer;
- sout_AccessOutWrite( p_mux->p_access, p_idx1 );
- /* calculate some value for headers creations */
- for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
- {
- avi_stream_t *p_stream;
- p_stream = &p_sys->stream[i_stream];
- p_stream->f_fps = 25;
- if( p_stream->i_duration > 0 )
- {
- p_stream->f_fps = (float)p_stream->i_frames /
- ( (float)p_stream->i_duration /
- (float)1000000 );
- }
- p_stream->i_bitrate = 128 * 1024;
- if( p_stream->i_duration > 0 )
- {
- p_stream->i_bitrate =
- 8 * (uint64_t)1000000 *
- (uint64_t)p_stream->i_totalsize /
- (uint64_t)p_stream->i_duration;
- }
- msg_Info( p_mux, "stream[%d] duration:"I64Fd" totalsize:"I64Fd
- " frames:%d fps:%f kb/s:%d",
- i_stream,
- (int64_t)p_stream->i_duration / (int64_t)1000000,
- p_stream->i_totalsize,
- p_stream->i_frames,
- p_stream->f_fps, p_stream->i_bitrate/1024 );
- }
- p_hdr = avi_HeaderCreateRIFF( p_mux );
- sout_AccessOutSeek( p_mux->p_access, 0 );
- sout_AccessOutWrite( p_mux->p_access, p_hdr );
- }
- static int Control( sout_mux_t *p_mux, int i_query, va_list args )
- {
- vlc_bool_t *pb_bool;
- char **ppsz;
- switch( i_query )
- {
- case MUX_CAN_ADD_STREAM_WHILE_MUXING:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
- *pb_bool = VLC_FALSE;
- return VLC_SUCCESS;
- case MUX_GET_ADD_STREAM_WAIT:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
- *pb_bool = VLC_TRUE;
- return VLC_SUCCESS;
- case MUX_GET_MIME:
- ppsz = (char**)va_arg( args, char ** );
- *ppsz = strdup( "video/avi" );
- return VLC_SUCCESS;
- default:
- return VLC_EGENERIC;
- }
- }
- static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
- {
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- avi_stream_t *p_stream;
- if( p_sys->i_streams >= 100 )
- {
- msg_Err( p_mux, "too many streams" );
- return( -1 );
- }
- msg_Dbg( p_mux, "adding input" );
- p_input->p_sys = malloc( sizeof( int ) );
- *((int*)p_input->p_sys) = p_sys->i_streams;
- p_stream = &p_sys->stream[p_sys->i_streams];
- switch( p_input->p_fmt->i_cat )
- {
- case AUDIO_ES:
- p_stream->i_cat = AUDIO_ES;
- p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
- p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
- p_stream->fcc[2] = 'w';
- p_stream->fcc[3] = 'b';
- p_stream->p_bih = NULL;
- p_stream->p_wf = malloc( sizeof( WAVEFORMATEX ) +
- p_input->p_fmt->i_extra );
- #define p_wf p_stream->p_wf
- p_wf->cbSize = p_input->p_fmt->i_extra;
- if( p_wf->cbSize > 0 )
- {
- memcpy( &p_wf[1],
- p_input->p_fmt->p_extra,
- p_input->p_fmt->i_extra );
- }
- p_wf->nChannels = p_input->p_fmt->audio.i_channels;
- p_wf->nSamplesPerSec = p_input->p_fmt->audio.i_rate;
- p_wf->nBlockAlign = p_input->p_fmt->audio.i_blockalign;
- p_wf->nAvgBytesPerSec= p_input->p_fmt->i_bitrate / 8;
- p_wf->wBitsPerSample = 0;
- switch( p_input->p_fmt->i_codec )
- {
- case VLC_FOURCC( 'a', '5', '2', ' ' ):
- p_wf->wFormatTag = WAVE_FORMAT_A52;
- break;
- case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
- p_wf->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
- break;
- case VLC_FOURCC( 'w', 'm', 'a', '1' ):
- p_wf->wFormatTag = WAVE_FORMAT_WMA1;
- break;
- case VLC_FOURCC( 'w', 'm', 'a', '2' ):
- p_wf->wFormatTag = WAVE_FORMAT_WMA2;
- break;
- case VLC_FOURCC( 'w', 'm', 'a', '3' ):
- p_wf->wFormatTag = WAVE_FORMAT_WMA3;
- break;
- /* raw codec */
- case VLC_FOURCC( 'u', '8', ' ', ' ' ):
- p_wf->wFormatTag = WAVE_FORMAT_PCM;
- p_wf->nBlockAlign= p_wf->nChannels;
- p_wf->wBitsPerSample = 8;
- break;
- case VLC_FOURCC( 's', '1', '6', 'l' ):
- p_wf->wFormatTag = WAVE_FORMAT_PCM;
- p_wf->nBlockAlign= 2 * p_wf->nChannels;
- p_wf->wBitsPerSample = 16;
- break;
- case VLC_FOURCC( 's', '2', '4', 'l' ):
- p_wf->wFormatTag = WAVE_FORMAT_PCM;
- p_wf->nBlockAlign= 3 * p_wf->nChannels;
- p_wf->wBitsPerSample = 24;
- break;
- case VLC_FOURCC( 's', '3', '2', 'l' ):
- p_wf->wFormatTag = WAVE_FORMAT_PCM;
- p_wf->nBlockAlign= 4 * p_wf->nChannels;
- p_wf->wBitsPerSample = 32;
- break;
- default:
- return VLC_EGENERIC;
- }
- #undef p_wf
- break;
- case VIDEO_ES:
- p_stream->i_cat = VIDEO_ES;
- p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
- p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
- p_stream->fcc[2] = 'd';
- p_stream->fcc[3] = 'c';
- if( p_sys->i_stream_video < 0 )
- {
- p_sys->i_stream_video = p_sys->i_streams;
- }
- p_stream->p_wf = NULL;
- p_stream->p_bih = malloc( sizeof( BITMAPINFOHEADER ) +
- p_input->p_fmt->i_extra );
- #define p_bih p_stream->p_bih
- p_bih->biSize = sizeof( BITMAPINFOHEADER ) +
- p_input->p_fmt->i_extra;
- if( p_input->p_fmt->i_extra > 0 )
- {
- memcpy( &p_bih[1],
- p_input->p_fmt->p_extra,
- p_input->p_fmt->i_extra );
- }
- p_bih->biWidth = p_input->p_fmt->video.i_width;
- p_bih->biHeight= p_input->p_fmt->video.i_height;
- p_bih->biPlanes= 1;
- p_bih->biBitCount = 24;
- p_bih->biSizeImage = 0;
- p_bih->biXPelsPerMeter = 0;
- p_bih->biYPelsPerMeter = 0;
- p_bih->biClrUsed = 0;
- p_bih->biClrImportant = 0;
- switch( p_input->p_fmt->i_codec )
- {
- case VLC_FOURCC( 'm', 'p', '4', 'v' ):
- p_bih->biCompression = VLC_FOURCC( 'X', 'V', 'I', 'D' );
- break;
- default:
- p_bih->biCompression = p_input->p_fmt->i_codec;
- break;
- }
- #undef p_bih
- break;
- default:
- return( VLC_EGENERIC );
- }
- p_stream->i_totalsize = 0;
- p_stream->i_frames = 0;
- p_stream->i_duration = 0;
- /* fixed later */
- p_stream->f_fps = 25;
- p_stream->i_bitrate = 128 * 1024;
- p_sys->i_streams++;
- return( VLC_SUCCESS );
- }
- static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
- {
- msg_Dbg( p_mux, "removing input" );
- free( p_input->p_sys );
- return( 0 );
- }
- static int Mux ( sout_mux_t *p_mux )
- {
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- avi_stream_t *p_stream;
- int i_stream;
- int i;
- if( p_sys->b_write_header )
- {
- block_t *p_hdr;
- msg_Dbg( p_mux, "writing header" );
- p_hdr = avi_HeaderCreateRIFF( p_mux );
- sout_AccessOutWrite( p_mux->p_access, p_hdr );
- p_sys->b_write_header = VLC_FALSE;
- }
- for( i = 0; i < p_mux->i_nb_inputs; i++ )
- {
- int i_count;
- block_fifo_t *p_fifo;
- i_stream = *((int*)p_mux->pp_inputs[i]->p_sys );
- p_stream = &p_sys->stream[i_stream];
- p_fifo = p_mux->pp_inputs[i]->p_fifo;
- i_count = p_fifo->i_depth;
- while( i_count > 1 )
- {
- avi_idx1_entry_t *p_idx;
- block_t *p_data;
- p_data = block_FifoGet( p_fifo );
- if( p_fifo->i_depth > 0 )
- {
- block_t *p_next = block_FifoShow( p_fifo );
- p_data->i_length = p_next->i_dts - p_data->i_dts;
- }
- p_stream->i_frames++;
- if( p_data->i_length < 0 )
- {
- msg_Warn( p_mux, "argg length < 0 l" );
- block_Release( p_data );
- i_count--;
- continue;
- }
- p_stream->i_duration += p_data->i_length;
- p_stream->i_totalsize += p_data->i_buffer;
- /* add idx1 entry for this frame */
- p_idx = &p_sys->idx1.entry[p_sys->idx1.i_entry_count];
- memcpy( p_idx->fcc, p_stream->fcc, 4 );
- p_idx->i_flags = AVIIF_KEYFRAME;
- p_idx->i_pos = p_sys->i_movi_size + 4;
- p_idx->i_length= p_data->i_buffer;
- p_sys->idx1.i_entry_count++;
- if( p_sys->idx1.i_entry_count >= p_sys->idx1.i_entry_max )
- {
- p_sys->idx1.i_entry_max += 10000;
- p_sys->idx1.entry = realloc( p_sys->idx1.entry,
- p_sys->idx1.i_entry_max * sizeof( avi_idx1_entry_t ) );
- }
- p_data = block_Realloc( p_data, 8, p_data->i_buffer );
- if( p_data )
- {
- SetFCC( p_data->p_buffer, p_stream->fcc );
- SetDWLE( p_data->p_buffer + 4, p_data->i_buffer - 8 );
- if( p_data->i_buffer & 0x01 )
- {
- p_data = block_Realloc( p_data, 0, p_data->i_buffer + 1 );
- }
- p_sys->i_movi_size += p_data->i_buffer;
- sout_AccessOutWrite( p_mux->p_access, p_data );
- }
- i_count--;
- }
- }
- return( 0 );
- }
- /****************************************************************************/
- /****************************************************************************/
- /****************************************************************************/
- /****************************************************************************/
- typedef struct buffer_out_s
- {
- int i_buffer_size;
- int i_buffer;
- uint8_t *p_buffer;
- } buffer_out_t;
- static void bo_Init( buffer_out_t *p_bo, int i_size, uint8_t *p_buffer )
- {
- p_bo->i_buffer_size = i_size;
- p_bo->i_buffer = 0;
- p_bo->p_buffer = p_buffer;
- }
- static void bo_AddByte( buffer_out_t *p_bo, uint8_t i )
- {
- if( p_bo->i_buffer < p_bo->i_buffer_size )
- {
- p_bo->p_buffer[p_bo->i_buffer] = i;
- }
- p_bo->i_buffer++;
- }
- static void bo_AddWordLE( buffer_out_t *p_bo, uint16_t i )
- {
- bo_AddByte( p_bo, i &0xff );
- bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
- }
- static void bo_AddWordBE( buffer_out_t *p_bo, uint16_t i )
- {
- bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
- bo_AddByte( p_bo, i &0xff );
- }
- static void bo_AddDWordLE( buffer_out_t *p_bo, uint32_t i )
- {
- bo_AddWordLE( p_bo, i &0xffff );
- bo_AddWordLE( p_bo, ( ( i >> 16) &0xffff ) );
- }
- static void bo_AddDWordBE( buffer_out_t *p_bo, uint32_t i )
- {
- bo_AddWordBE( p_bo, ( ( i >> 16) &0xffff ) );
- bo_AddWordBE( p_bo, i &0xffff );
- }
- #if 0
- static void bo_AddLWordLE( buffer_out_t *p_bo, uint64_t i )
- {
- bo_AddDWordLE( p_bo, i &0xffffffff );
- bo_AddDWordLE( p_bo, ( ( i >> 32) &0xffffffff ) );
- }
- static void bo_AddLWordBE( buffer_out_t *p_bo, uint64_t i )
- {
- bo_AddDWordBE( p_bo, ( ( i >> 32) &0xffffffff ) );
- bo_AddDWordBE( p_bo, i &0xffffffff );
- }
- #endif
- static void bo_AddFCC( buffer_out_t *p_bo, char *fcc )
- {
- bo_AddByte( p_bo, fcc[0] );
- bo_AddByte( p_bo, fcc[1] );
- bo_AddByte( p_bo, fcc[2] );
- bo_AddByte( p_bo, fcc[3] );
- }
- static void bo_AddMem( buffer_out_t *p_bo, int i_size, uint8_t *p_mem )
- {
- int i;
- for( i = 0; i < i_size; i++ )
- {
- bo_AddByte( p_bo, p_mem[i] );
- }
- }
- /****************************************************************************
- ****************************************************************************
- **
- ** avi header generation
- **
- ****************************************************************************
- ****************************************************************************/
- #define AVI_BOX_ENTER( fcc )
- buffer_out_t _bo_sav_;
- bo_AddFCC( p_bo, fcc );
- _bo_sav_ = *p_bo;
- bo_AddDWordLE( p_bo, 0 )
- #define AVI_BOX_ENTER_LIST( fcc )
- AVI_BOX_ENTER( "LIST" );
- bo_AddFCC( p_bo, fcc )
- #define AVI_BOX_EXIT( i_err )
- if( p_bo->i_buffer&0x01 ) bo_AddByte( p_bo, 0 );
- bo_AddDWordLE( &_bo_sav_, p_bo->i_buffer - _bo_sav_.i_buffer - 4 );
- return( i_err );
- static int avi_HeaderAdd_avih( sout_mux_t *p_mux,
- buffer_out_t *p_bo )
- {
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- avi_stream_t *p_video = NULL;
- int i_stream;
- uint32_t i_microsecperframe;
- int i_maxbytespersec;
- int i_totalframes;
- AVI_BOX_ENTER( "avih" );
- if( p_sys->i_stream_video >= 0 )
- {
- p_video = &p_sys->stream[p_sys->i_stream_video];
- if( p_video->i_frames <= 0 )
- {
- // p_video = NULL;
- }
- }
- if( p_video )
- {
- i_microsecperframe =
- (uint32_t)( (float)1000000 /
- (float)p_sys->stream[p_sys->i_stream_video].f_fps );
- i_totalframes = p_sys->stream[p_sys->i_stream_video].i_frames;
- }
- else
- {
- msg_Warn( p_mux, "avi file without video track isn't a good idea..." );
- i_microsecperframe = 0;
- i_totalframes = 0;
- }
- for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
- {
- if( p_sys->stream[i_stream].i_duration > 0 )
- {
- i_maxbytespersec +=
- p_sys->stream[p_sys->i_stream_video].i_totalsize /
- p_sys->stream[p_sys->i_stream_video].i_duration;
- }
- }
- bo_AddDWordLE( p_bo, i_microsecperframe );
- bo_AddDWordLE( p_bo, i_maxbytespersec );
- bo_AddDWordLE( p_bo, 0 ); /* padding */
- bo_AddDWordLE( p_bo, AVIF_TRUSTCKTYPE |
- AVIF_HASINDEX |
- AVIF_ISINTERLEAVED ); /* flags */
- bo_AddDWordLE( p_bo, i_totalframes );
- bo_AddDWordLE( p_bo, 0 ); /* initial frame */
- bo_AddDWordLE( p_bo, p_sys->i_streams ); /* streams count */
- bo_AddDWordLE( p_bo, 1024 * 1024 ); /* suggested buffer size */
- if( p_video )
- {
- bo_AddDWordLE( p_bo, p_video->p_bih->biWidth );
- bo_AddDWordLE( p_bo, p_video->p_bih->biHeight );
- }
- else
- {
- bo_AddDWordLE( p_bo, 0 );
- bo_AddDWordLE( p_bo, 0 );
- }
- bo_AddDWordLE( p_bo, 0 ); /* ???? */
- bo_AddDWordLE( p_bo, 0 ); /* ???? */
- bo_AddDWordLE( p_bo, 0 ); /* ???? */
- bo_AddDWordLE( p_bo, 0 ); /* ???? */
- AVI_BOX_EXIT( 0 );
- }
- static int avi_HeaderAdd_strh( sout_mux_t *p_mux,
- buffer_out_t *p_bo,
- avi_stream_t *p_stream )
- {
- AVI_BOX_ENTER( "strh" );
- switch( p_stream->i_cat )
- {
- case VIDEO_ES:
- {
- bo_AddFCC( p_bo, "vids" );
- bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
- bo_AddDWordLE( p_bo, 0 ); /* flags */
- bo_AddWordLE( p_bo, 0 ); /* priority */
- bo_AddWordLE( p_bo, 0 ); /* langage */
- bo_AddDWordLE( p_bo, 0 ); /* initial frame */
- bo_AddDWordLE( p_bo, 1000 );/* scale */
- bo_AddDWordLE( p_bo, (uint32_t)( 1000 * p_stream->f_fps ));
- bo_AddDWordLE( p_bo, 0 ); /* start */
- bo_AddDWordLE( p_bo, p_stream->i_frames );
- bo_AddDWordLE( p_bo, 1024 * 1024 );
- bo_AddDWordLE( p_bo, -1 ); /* quality */
- bo_AddDWordLE( p_bo, 0 ); /* samplesize */
- bo_AddWordLE( p_bo, 0 ); /* ??? */
- bo_AddWordLE( p_bo, 0 ); /* ??? */
- bo_AddWordLE( p_bo, p_stream->p_bih->biWidth );
- bo_AddWordLE( p_bo, p_stream->p_bih->biHeight );
- }
- break;
- case AUDIO_ES:
- {
- int i_rate, i_scale, i_samplesize;
- i_samplesize = p_stream->p_wf->nBlockAlign;
- if( i_samplesize > 1 )
- {
- i_scale = i_samplesize;
- i_rate = /*i_scale **/ p_stream->i_bitrate / 8;
- }
- else
- {
- i_samplesize = 1;
- i_scale = 1000;
- i_rate = 1000 * p_stream->i_bitrate / 8;
- }
- bo_AddFCC( p_bo, "auds" );
- bo_AddDWordLE( p_bo, 0 ); /* tag */
- bo_AddDWordLE( p_bo, 0 ); /* flags */
- bo_AddWordLE( p_bo, 0 ); /* priority */
- bo_AddWordLE( p_bo, 0 ); /* langage */
- bo_AddDWordLE( p_bo, 0 ); /* initial frame */
- bo_AddDWordLE( p_bo, i_scale );/* scale */
- bo_AddDWordLE( p_bo, i_rate );
- bo_AddDWordLE( p_bo, 0 ); /* start */
- bo_AddDWordLE( p_bo, p_stream->i_frames );
- bo_AddDWordLE( p_bo, 10 * 1024 );
- bo_AddDWordLE( p_bo, -1 ); /* quality */
- bo_AddDWordLE( p_bo, i_samplesize );
- bo_AddWordLE( p_bo, 0 ); /* ??? */
- bo_AddWordLE( p_bo, 0 ); /* ??? */
- bo_AddWordLE( p_bo, 0 );
- bo_AddWordLE( p_bo, 0 );
- }
- break;
- }
- AVI_BOX_EXIT( 0 );
- }
- static int avi_HeaderAdd_strf( sout_mux_t *p_mux,
- buffer_out_t *p_bo,
- avi_stream_t *p_stream )
- {
- AVI_BOX_ENTER( "strf" );
- switch( p_stream->i_cat )
- {
- case AUDIO_ES:
- bo_AddWordLE( p_bo, p_stream->p_wf->wFormatTag );
- bo_AddWordLE( p_bo, p_stream->p_wf->nChannels );
- bo_AddDWordLE( p_bo, p_stream->p_wf->nSamplesPerSec );
- bo_AddDWordLE( p_bo, p_stream->p_wf->nAvgBytesPerSec );
- bo_AddWordLE( p_bo, p_stream->p_wf->nBlockAlign );
- bo_AddWordLE( p_bo, p_stream->p_wf->wBitsPerSample );
- bo_AddWordLE( p_bo, p_stream->p_wf->cbSize );
- bo_AddMem( p_bo, p_stream->p_wf->cbSize, (uint8_t*)&p_stream->p_wf[1] );
- break;
- case VIDEO_ES:
- bo_AddDWordLE( p_bo, p_stream->p_bih->biSize );
- bo_AddDWordLE( p_bo, p_stream->p_bih->biWidth );
- bo_AddDWordLE( p_bo, p_stream->p_bih->biHeight );
- bo_AddWordLE( p_bo, p_stream->p_bih->biPlanes );
- bo_AddWordLE( p_bo, p_stream->p_bih->biBitCount );
- if( VLC_FOURCC( 0, 0, 0, 1 ) == 0x00000001 )
- {
- bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
- }
- else
- {
- bo_AddDWordLE( p_bo, p_stream->p_bih->biCompression );
- }
- bo_AddDWordLE( p_bo, p_stream->p_bih->biSizeImage );
- bo_AddDWordLE( p_bo, p_stream->p_bih->biXPelsPerMeter );
- bo_AddDWordLE( p_bo, p_stream->p_bih->biYPelsPerMeter );
- bo_AddDWordLE( p_bo, p_stream->p_bih->biClrUsed );
- bo_AddDWordLE( p_bo, p_stream->p_bih->biClrImportant );
- bo_AddMem( p_bo,
- p_stream->p_bih->biSize - sizeof( BITMAPINFOHEADER ),
- (uint8_t*)&p_stream->p_bih[1] );
- break;
- }
- AVI_BOX_EXIT( 0 );
- }
- static int avi_HeaderAdd_strl( sout_mux_t *p_mux,
- buffer_out_t *p_bo,
- avi_stream_t *p_stream )
- {
- AVI_BOX_ENTER_LIST( "strl" );
- avi_HeaderAdd_strh( p_mux, p_bo, p_stream );
- avi_HeaderAdd_strf( p_mux, p_bo, p_stream );
- AVI_BOX_EXIT( 0 );
- }
- static block_t *avi_HeaderCreateRIFF( sout_mux_t *p_mux )
- {
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- block_t *p_hdr;
- int i_stream;
- int i_maxbytespersec;
- int i_junk;
- buffer_out_t bo;
- p_hdr = block_New( p_mux, HDR_SIZE );
- memset( p_hdr->p_buffer, 0, HDR_SIZE );
- bo_Init( &bo, HDR_SIZE, p_hdr->p_buffer );
- bo_AddFCC( &bo, "RIFF" );
- bo_AddDWordLE( &bo, p_sys->i_movi_size + HDR_SIZE - 8 + p_sys->i_idx1_size );
- bo_AddFCC( &bo, "AVI " );
- bo_AddFCC( &bo, "LIST" );
- bo_AddDWordLE( &bo, HDR_SIZE - 8);
- bo_AddFCC( &bo, "hdrl" );
- avi_HeaderAdd_avih( p_mux, &bo );
- for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
- {
- avi_HeaderAdd_strl( p_mux, &bo, &p_sys->stream[i_stream] );
- }
- i_junk = HDR_SIZE - bo.i_buffer - 8 - 12;
- bo_AddFCC( &bo, "JUNK" );
- bo_AddDWordLE( &bo, i_junk );
- bo.i_buffer += i_junk;
- bo_AddFCC( &bo, "LIST" );
- bo_AddDWordLE( &bo, p_sys->i_movi_size + 4 );
- bo_AddFCC( &bo, "movi" );
- return( p_hdr );
- }
- static block_t * avi_HeaderCreateidx1( sout_mux_t *p_mux )
- {
- sout_mux_sys_t *p_sys = p_mux->p_sys;
- block_t *p_idx1;
- uint32_t i_idx1_size;
- unsigned int i;
- buffer_out_t bo;
- i_idx1_size = 16 * p_sys->idx1.i_entry_count;
- p_idx1 = block_New( p_mux, i_idx1_size + 8 );
- memset( p_idx1->p_buffer, 0, i_idx1_size );
- bo_Init( &bo, i_idx1_size, p_idx1->p_buffer );
- bo_AddFCC( &bo, "idx1" );
- bo_AddDWordLE( &bo, i_idx1_size );
- for( i = 0; i < p_sys->idx1.i_entry_count; i++ )
- {
- bo_AddFCC( &bo, p_sys->idx1.entry[i].fcc );
- bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_flags );
- bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_pos );
- bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_length );
- }
- return( p_idx1 );
- }