* avi.c : AVI file Stream input module for vlc
*****************************************************************************
* Copyright (C) 2001 VideoLAN
- * $Id: avi.c,v 1.1 2002/08/04 17:23:42 sam Exp $
+ * $Id: avi.c,v 1.36 2003/02/27 13:19:43 gbazin 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
#include "video.h"
-#include "libioRIFF.h"
+#include "libavi.h"
+
+#define __AVI_SUBTITLE__ 1
+
+#ifdef __AVI_SUBTITLE__
+# include "../util/sub.h"
+#endif
#include "avi.h"
/*****************************************************************************
*****************************************************************************/
static int AVIInit ( vlc_object_t * );
static void __AVIEnd ( vlc_object_t * );
-static int AVIDemux ( input_thread_t * );
+static int AVISeek ( input_thread_t *, mtime_t, int );
+static int AVIDemux_Seekable ( input_thread_t * );
+static int AVIDemux_UnSeekable( input_thread_t *p_input );
#define AVIEnd(a) __AVIEnd(VLC_OBJECT(a))
-
+#define FREE( p ) if( p ) { free( p ); (p) = NULL; }
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
- set_description( "RIFF-AVI demuxer" );
- set_capability( "demux", 150 );
+ add_category_hint( N_("avi-demuxer"), NULL, VLC_TRUE );
+ add_bool( "avi-interleaved", 0, NULL,
+ _("force interleaved method"),
+ _("force interleaved method"), VLC_TRUE );
+ add_bool( "avi-index", 0, NULL,
+ _("force index creation"),
+ _("force index creation"), VLC_TRUE );
+
+ set_description( _("avi demuxer") );
+ set_capability( "demux", 212 );
set_callbacks( AVIInit, __AVIEnd );
vlc_module_end();
/*****************************************************************************
- * Some usefull functions to manipulate memory
+ * Some useful functions to manipulate memory
*****************************************************************************/
-static u16 GetWLE( byte_t *p_buff )
-{
- u16 i;
- i = (*p_buff) + ( *(p_buff + 1) <<8 );
- return ( i );
-}
-static u32 GetDWLE( byte_t *p_buff )
-{
- u32 i;
- i = (*p_buff) + ( *(p_buff + 1) <<8 ) +
- ( *(p_buff + 2) <<16 ) + ( *(p_buff + 3) <<24 );
- return ( i );
-}
-static u32 GetDWBE( byte_t *p_buff )
-{
- u32 i;
- i = ((*p_buff)<<24) + ( *(p_buff + 1) <<16 ) +
- ( *(p_buff + 2) <<8 ) + ( *(p_buff + 3) );
- return ( i );
-}
-static inline off_t __EVEN( off_t i )
+
+static uint16_t GetWLE( uint8_t *p_buff )
{
- return( (i & 1) ? i+1 : i );
+ return (uint16_t)p_buff[0] | ( ((uint16_t)p_buff[1]) << 8 );
}
-
-/*****************************************************************************
- * Functions for parsing the headers in an avi file
- *****************************************************************************/
-static void AVI_Parse_avih( MainAVIHeader_t *p_avih, byte_t *p_buff )
+static uint32_t GetDWLE( uint8_t *p_buff )
{
- p_avih->i_microsecperframe = GetDWLE( p_buff );
- p_avih->i_maxbytespersec = GetDWLE( p_buff + 4);
- p_avih->i_reserved1 = GetDWLE( p_buff + 8);
- p_avih->i_flags = GetDWLE( p_buff + 12);
- p_avih->i_totalframes = GetDWLE( p_buff + 16);
- p_avih->i_initialframes = GetDWLE( p_buff + 20);
- p_avih->i_streams = GetDWLE( p_buff + 24);
- p_avih->i_suggestedbuffersize = GetDWLE( p_buff + 28);
- p_avih->i_width = GetDWLE( p_buff + 32 );
- p_avih->i_height = GetDWLE( p_buff + 36 );
- p_avih->i_scale = GetDWLE( p_buff + 40 );
- p_avih->i_rate = GetDWLE( p_buff + 44 );
- p_avih->i_start = GetDWLE( p_buff + 48);
- p_avih->i_length = GetDWLE( p_buff + 52);
+ return (uint32_t)p_buff[0] | ( ((uint32_t)p_buff[1]) << 8 ) |
+ ( ((uint32_t)p_buff[2]) << 16 ) | ( ((uint32_t)p_buff[3]) << 24 );
}
-static void AVI_Parse_Header( AVIStreamHeader_t *p_strh, byte_t *p_buff )
+
+static uint32_t GetDWBE( uint8_t *p_buff )
{
- p_strh->i_type = GetDWLE( p_buff );
- p_strh->i_handler = GetDWLE( p_buff + 4 );
- p_strh->i_flags = GetDWLE( p_buff + 8 );
- p_strh->i_reserved1 = GetDWLE( p_buff + 12);
- p_strh->i_initialframes = GetDWLE( p_buff + 16);
- p_strh->i_scale = GetDWLE( p_buff + 20);
- p_strh->i_rate = GetDWLE( p_buff + 24);
- p_strh->i_start = GetDWLE( p_buff + 28);
- p_strh->i_length = GetDWLE( p_buff + 32);
- p_strh->i_suggestedbuffersize = GetDWLE( p_buff + 36);
- p_strh->i_quality = GetDWLE( p_buff + 40);
- p_strh->i_samplesize = GetDWLE( p_buff + 44);
+ return (uint32_t)p_buff[3] | ( ((uint32_t)p_buff[2]) << 8 ) |
+ ( ((uint32_t)p_buff[1]) << 16 ) | ( ((uint32_t)p_buff[0]) << 24 );
}
-static void AVI_Parse_BitMapInfoHeader( bitmapinfoheader_t *h, byte_t *p_data )
+static vlc_fourcc_t GetFOURCC( byte_t *p_buff )
{
- h->i_size = GetDWLE( p_data );
- h->i_width = GetDWLE( p_data + 4 );
- h->i_height = GetDWLE( p_data + 8 );
- h->i_planes = GetWLE( p_data + 12 );
- h->i_bitcount = GetWLE( p_data + 14 );
- h->i_compression = GetDWLE( p_data + 16 );
- h->i_sizeimage = GetDWLE( p_data + 20 );
- h->i_xpelspermeter = GetDWLE( p_data + 24 );
- h->i_ypelspermeter = GetDWLE( p_data + 28 );
- h->i_clrused = GetDWLE( p_data + 32 );
- h->i_clrimportant = GetDWLE( p_data + 36 );
+ return VLC_FOURCC( p_buff[0], p_buff[1], p_buff[2], p_buff[3] );
}
-static void AVI_Parse_WaveFormatEx( waveformatex_t *h, byte_t *p_data )
+
+static inline off_t __EVEN( off_t i )
{
- h->i_formattag = GetWLE( p_data );
- h->i_channels = GetWLE( p_data + 2 );
- h->i_samplespersec = GetDWLE( p_data + 4 );
- h->i_avgbytespersec= GetDWLE( p_data + 8 );
- h->i_blockalign = GetWLE( p_data + 12 );
- h->i_bitspersample = GetWLE( p_data + 14 );
- h->i_size = GetWLE( p_data + 16 );
+ return (i & 1) ? i + 1 : i;
}
-static inline int AVI_GetESTypeFromTwoCC( u16 i_type )
+#define __ABS( x ) ( (x) < 0 ? (-(x)) : (x) )
+
+/* read data in a pes */
+static int input_ReadInPES( input_thread_t *p_input,
+ pes_packet_t **pp_pes,
+ size_t i_size )
{
- switch( i_type )
+ pes_packet_t *p_pes;
+ data_packet_t *p_data;
+
+
+ if( !(p_pes = input_NewPES( p_input->p_method_data ) ) )
{
- case( TWOCC_wb ):
- return( AUDIO_ES );
- case( TWOCC_dc ):
- case( TWOCC_db ):
- return( VIDEO_ES );
- default:
- return( UNKNOWN_ES );
+ pp_pes = NULL;
+ return -1;
}
-}
-static vlc_fourcc_t AVI_AudioGetType( u32 i_type )
-{
- switch( i_type )
- {
-/* case( WAVE_FORMAT_PCM ):
- return VLC_FOURCC('l','p','c','m'); */
- case( WAVE_FORMAT_A52 ):
- return VLC_FOURCC('a','5','2',' ');
- case( WAVE_FORMAT_MPEG):
- case( WAVE_FORMAT_MPEGLAYER3):
- return VLC_FOURCC('m','p','g','a'); /* for mpeg2 layer 1 2 ou 3 */
- default:
- return 0;
+ *pp_pes = p_pes;
+
+ if( !i_size )
+ {
+ p_pes->p_first =
+ p_pes->p_last =
+ input_NewPacket( p_input->p_method_data, 0 );
+ p_pes->i_nb_data = 1;
+ p_pes->i_pes_size = 0;
+ return 0;
+ }
+
+ p_pes->i_nb_data = 0;
+ p_pes->i_pes_size = 0;
+
+ while( p_pes->i_pes_size < i_size )
+ {
+ int i_read;
+
+ i_read = input_SplitBuffer(p_input,
+ &p_data,
+ __MIN( i_size -
+ p_pes->i_pes_size, 2048 ) );
+ if( i_read <= 0 )
+ {
+ /* should occur only with EOF and max allocation reached
+ * it safer to return an error */
+ /* free pes */
+ input_DeletePES( p_input->p_method_data, p_pes );
+ return -1;
+ }
+
+ if( !p_pes->p_first )
+ {
+ p_pes->p_first = p_data;
+ }
+ else
+ {
+ p_pes->p_last->p_next = p_data;
+ }
+ p_pes->p_last = p_data;
+ p_pes->i_nb_data++;
+ p_pes->i_pes_size += i_read;
}
+
+
+ return p_pes->i_pes_size;
}
/* Test if it seems that it's a key frame */
-static int AVI_GetKeyFlag( vlc_fourcc_t i_fourcc, u8 *p_byte )
+static int AVI_GetKeyFlag( vlc_fourcc_t i_fourcc, uint8_t *p_byte )
{
switch( i_fourcc )
{
case FOURCC_DIV1:
- case FOURCC_div1:
- case FOURCC_MPG4:
- case FOURCC_mpg4:
- if( GetDWBE( p_byte ) != 0x00000100 )
- /* startcode perhaps swapped, I haven't tested */
+ /* we have:
+ * startcode: 0x00000100 32bits
+ * framenumber ? 5bits
+ * piture type 0(I),1(P) 2bits
+ */
+ if( GetDWBE( p_byte ) != 0x00000100 )
{
- /* it's seems it's not an msmpegv1 stream
- but perhaps I'm wrong so return yes */
- return( AVIIF_KEYFRAME );
+ /* it's not an msmpegv1 stream, strange...*/
+ return AVIIF_KEYFRAME;
}
else
{
- return( (*(p_byte+4))&0x06 ? 0 : AVIIF_KEYFRAME);
+ return p_byte[4] & 0x06 ? 0 : AVIIF_KEYFRAME;
}
case FOURCC_DIV2:
- case FOURCC_div2:
- case FOURCC_MP42:
- case FOURCC_mp42:
- case FOURCC_MPG3:
- case FOURCC_mpg3:
- case FOURCC_div3:
- case FOURCC_MP43:
- case FOURCC_mp43:
- case FOURCC_DIV3:
- case FOURCC_DIV4:
- case FOURCC_div4:
- case FOURCC_DIV5:
- case FOURCC_div5:
- case FOURCC_DIV6:
- case FOURCC_div6:
- case FOURCC_AP41:
- case FOURCC_3IV1:
- return( (*p_byte)&0xC0 ? 0 : AVIIF_KEYFRAME );
- case FOURCC_DIVX:
- case FOURCC_divx:
- case FOURCC_MP4S:
- case FOURCC_mp4s:
- case FOURCC_M4S2:
- case FOURCC_m4s2:
- case FOURCC_xvid:
- case FOURCC_XVID:
- case FOURCC_XviD:
- case FOURCC_DX50:
+ case FOURCC_DIV3: // wmv1 also
+ /* we have
+ * picture type 0(I),1(P) 2bits
+ */
+ return p_byte[0] & 0xC0 ? 0 : AVIIF_KEYFRAME;
case FOURCC_mp4v:
- case FOURCC_4:
+ /* we should find first occurence of 0x000001b6 (32bits)
+ * startcode: 0x000001b6 32bits
+ * piture type 0(I),1(P) 2bits
+ */
if( GetDWBE( p_byte ) != 0x000001b6 )
{
- /* not true , need to find the first VOP header
- but, I'm lazy */
- return( AVIIF_KEYFRAME );
+ /* not true , need to find the first VOP header */
+ return AVIIF_KEYFRAME;
}
else
{
- return( (*(p_byte+4))&0xC0 ? 0 : AVIIF_KEYFRAME );
+ return p_byte[4] & 0xC0 ? 0 : AVIIF_KEYFRAME;
}
default:
- /* I can't do it, so said yes */
- return( AVIIF_KEYFRAME );
+ /* I can't do it, so say yes */
+ return AVIIF_KEYFRAME;
}
-
}
-/*****************************************************************************
- * Data and functions to manipulate pes buffer
- *****************************************************************************/
-#define BUFFER_MAXTOTALSIZE 512*1024 /* 1/2 Mo */
-#define BUFFER_MAXSPESSIZE 1024*200
-static int AVI_PESBuffer_IsFull( AVIStreamInfo_t *p_info )
+
+vlc_fourcc_t AVI_FourccGetCodec( unsigned int i_cat, vlc_fourcc_t i_codec )
{
- return( p_info->i_pes_totalsize > BUFFER_MAXTOTALSIZE ? 1 : 0);
+ switch( i_cat )
+ {
+ case AUDIO_ES:
+ switch( i_codec )
+ {
+ case WAVE_FORMAT_PCM:
+ return VLC_FOURCC( 'a', 'r', 'a', 'w' );
+ case WAVE_FORMAT_MPEG:
+ case WAVE_FORMAT_MPEGLAYER3:
+ return VLC_FOURCC( 'm', 'p', 'g', 'a' );
+ case WAVE_FORMAT_A52:
+ return VLC_FOURCC( 'a', '5', '2', ' ' );
+ case WAVE_FORMAT_WMA1:
+ return VLC_FOURCC( 'w', 'm', 'a', '1' );
+ case WAVE_FORMAT_WMA2:
+ return VLC_FOURCC( 'w', 'm', 'a', '2' );
+ default:
+ return VLC_FOURCC( 'm', 's',
+ ( i_codec >> 8 )&0xff, i_codec&0xff );
+ }
+ case VIDEO_ES:
+ // XXX DIV1 <- msmpeg4v1, DIV2 <- msmpeg4v2, DIV3 <- msmpeg4v3, mp4v for mpeg4
+ switch( i_codec )
+ {
+ case FOURCC_DIV1:
+ case FOURCC_div1:
+ case FOURCC_MPG4:
+ case FOURCC_mpg4:
+ return FOURCC_DIV1;
+ case FOURCC_DIV2:
+ case FOURCC_div2:
+ case FOURCC_MP42:
+ case FOURCC_mp42:
+ case FOURCC_MPG3:
+ case FOURCC_mpg3:
+ return FOURCC_DIV2;
+ case FOURCC_div3:
+ case FOURCC_MP43:
+ case FOURCC_mp43:
+ case FOURCC_DIV3:
+ case FOURCC_DIV4:
+ case FOURCC_div4:
+ case FOURCC_DIV5:
+ case FOURCC_div5:
+ case FOURCC_DIV6:
+ case FOURCC_div6:
+ case FOURCC_AP41:
+ case FOURCC_3IV1:
+ return FOURCC_DIV3;
+ case FOURCC_DIVX:
+ case FOURCC_divx:
+ case FOURCC_MP4S:
+ case FOURCC_mp4s:
+ case FOURCC_M4S2:
+ case FOURCC_m4s2:
+ case FOURCC_xvid:
+ case FOURCC_XVID:
+ case FOURCC_XviD:
+ case FOURCC_DX50:
+ case FOURCC_mp4v:
+ case FOURCC_4:
+ return FOURCC_mp4v;
+ }
+ default:
+ return VLC_FOURCC( 'u', 'n', 'd', 'f' );
+ }
}
-static void AVI_PESBuffer_Add( input_buffers_t *p_method_data,
- AVIStreamInfo_t *p_info,
- pes_packet_t *p_pes,
- int i_posc,
- int i_posb )
+
+static void AVI_ParseStreamHeader( vlc_fourcc_t i_id,
+ int *pi_number, int *pi_type )
{
- AVIESBuffer_t *p_buffer_pes;
+#define SET_PTR( p, v ) if( p ) *(p) = (v);
+ int c1, c2;
- if( p_info->i_pes_totalsize > BUFFER_MAXTOTALSIZE )
- {
- input_DeletePES( p_method_data, p_pes );
- return;
- }
-
- if( !( p_buffer_pes = malloc( sizeof( AVIESBuffer_t ) ) ) )
- {
- input_DeletePES( p_method_data, p_pes );
- return;
- }
- p_buffer_pes->p_next = NULL;
- p_buffer_pes->p_pes = p_pes;
- p_buffer_pes->i_posc = i_posc;
- p_buffer_pes->i_posb = i_posb;
+ c1 = ((uint8_t *)&i_id)[0];
+ c2 = ((uint8_t *)&i_id)[1];
- if( p_info->p_pes_last )
+ if( c1 < '0' || c1 > '9' || c2 < '0' || c2 > '9' )
{
- p_info->p_pes_last->p_next = p_buffer_pes;
+ SET_PTR( pi_number, 100 ); /* > max stream number */
+ SET_PTR( pi_type, UNKNOWN_ES );
}
- p_info->p_pes_last = p_buffer_pes;
- if( !p_info->p_pes_first )
+ else
{
- p_info->p_pes_first = p_buffer_pes;
+ SET_PTR( pi_number, (c1 - '0') * 10 + (c2 - '0' ) );
+ switch( VLC_TWOCC( ((uint8_t *)&i_id)[2], ((uint8_t *)&i_id)[3] ) )
+ {
+ case AVITWOCC_wb:
+ SET_PTR( pi_type, AUDIO_ES );
+ break;
+ case AVITWOCC_dc:
+ case AVITWOCC_db:
+ SET_PTR( pi_type, VIDEO_ES );
+ break;
+ default:
+ SET_PTR( pi_type, UNKNOWN_ES );
+ break;
+ }
}
- p_info->i_pes_count++;
- p_info->i_pes_totalsize += p_pes->i_pes_size;
+#undef SET_PTR
}
-static pes_packet_t *AVI_PESBuffer_Get( AVIStreamInfo_t *p_info )
+
+static int AVI_PacketGetHeader( input_thread_t *p_input, avi_packet_t *p_pk )
{
- AVIESBuffer_t *p_buffer_pes;
- pes_packet_t *p_pes;
- if( p_info->p_pes_first )
- {
- p_buffer_pes = p_info->p_pes_first;
- p_info->p_pes_first = p_buffer_pes->p_next;
- if( !p_info->p_pes_first )
- {
- p_info->p_pes_last = NULL;
- }
- p_pes = p_buffer_pes->p_pes;
+ uint8_t *p_peek;
- free( p_buffer_pes );
- p_info->i_pes_count--;
- p_info->i_pes_totalsize -= p_pes->i_pes_size;
- return( p_pes );
+ if( input_Peek( p_input, &p_peek, 16 ) < 16 )
+ {
+ return VLC_EGENERIC;
+ }
+ p_pk->i_fourcc = GetFOURCC( p_peek );
+ p_pk->i_size = GetDWLE( p_peek + 4 );
+ p_pk->i_pos = AVI_TellAbsolute( p_input );
+ if( p_pk->i_fourcc == AVIFOURCC_LIST )
+ {
+ p_pk->i_type = GetFOURCC( p_peek + 8 );
}
else
{
- return( NULL );
+ p_pk->i_type = 0;
}
+
+ memcpy( p_pk->i_peek, p_peek + 8, 8 );
+
+ AVI_ParseStreamHeader( p_pk->i_fourcc, &p_pk->i_stream, &p_pk->i_cat );
+ return VLC_SUCCESS;
}
-static int AVI_PESBuffer_Drop( input_buffers_t *p_method_data,
- AVIStreamInfo_t *p_info )
+
+static int AVI_PacketNext( input_thread_t *p_input )
{
- pes_packet_t *p_pes = AVI_PESBuffer_Get( p_info );
- if( p_pes )
+ avi_packet_t avi_ck;
+
+ if( AVI_PacketGetHeader( p_input, &avi_ck ) )
{
- input_DeletePES( p_method_data, p_pes );
- return( 1 );
+ return VLC_EGENERIC;
}
- else
+ if( avi_ck.i_fourcc == AVIFOURCC_LIST && avi_ck.i_type == AVIFOURCC_rec )
{
- return( 0 );
+ return AVI_SkipBytes( p_input, 12 );
}
-}
-static void AVI_PESBuffer_Flush( input_buffers_t *p_method_data,
- AVIStreamInfo_t *p_info )
-{
- while( p_info->p_pes_first )
+ else
{
- AVI_PESBuffer_Drop( p_method_data, p_info );
+ return AVI_SkipBytes( p_input, __EVEN( avi_ck.i_size ) + 8 );
}
}
-
-static void AVI_ParseStreamHeader( u32 i_id, int *i_number, int *i_type )
+static int AVI_PacketRead( input_thread_t *p_input,
+ avi_packet_t *p_pk,
+ pes_packet_t **pp_pes )
{
- int c1,c2;
+ size_t i_size;
+ vlc_bool_t b_pad;
- c1 = ( i_id ) & 0xFF;
- c2 = ( i_id >> 8 ) & 0xFF;
+ i_size = __EVEN( p_pk->i_size + 8 );
+ b_pad = ( i_size != p_pk->i_size + 8 );
- if( c1 < '0' || c1 > '9' || c2 < '0' || c2 > '9' )
+ if( input_ReadInPES( p_input, pp_pes, i_size ) != (ssize_t)i_size )
{
- *i_number = 100; /* > max stream number */
- *i_type = 0;
+ return VLC_EGENERIC;
}
- else
+ (*pp_pes)->p_first->p_payload_start += 8;
+ (*pp_pes)->i_pes_size -= 8;
+
+ if( b_pad )
{
- *i_number = (c1 - '0') * 10 + (c2 - '0' );
- *i_type = ( i_id >> 16 ) & 0xFFFF;
+ (*pp_pes)->p_last->p_payload_end--;
+ (*pp_pes)->i_pes_size--;
}
-}
-
-/* Function to manipulate stream easily */
-static off_t AVI_TellAbsolute( input_thread_t *p_input )
-{
- off_t i_pos;
- vlc_mutex_lock( &p_input->stream.stream_lock );
- i_pos= p_input->stream.p_selected_area->i_tell -
- ( p_input->p_last_data - p_input->p_current_data );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- return( i_pos );
+ return VLC_SUCCESS;
}
-
-static int AVI_SeekAbsolute( input_thread_t *p_input,
- off_t i_pos)
+
+static int AVI_PacketSearch( input_thread_t *p_input )
{
- off_t i_filepos;
- /* FIXME add support for not seekable stream */
+ demux_sys_t *p_avi = p_input->p_demux_data;
- i_filepos = AVI_TellAbsolute( p_input );
- if( i_pos != i_filepos )
+ avi_packet_t avi_pk;
+ for( ;; )
{
-// msg_Err( p_input, "Seek --> delta %d", i_pos - i_filepos );
- p_input->pf_seek( p_input, i_pos );
- input_AccessReinit( p_input );
+ if( AVI_SkipBytes( p_input, 1 ) )
+ {
+ return VLC_EGENERIC;
+ }
+ AVI_PacketGetHeader( p_input, &avi_pk );
+ if( avi_pk.i_stream < p_avi->i_streams &&
+ ( avi_pk.i_cat == AUDIO_ES || avi_pk.i_cat == VIDEO_ES ) )
+ {
+ return VLC_SUCCESS;
+ }
+ switch( avi_pk.i_fourcc )
+ {
+ case AVIFOURCC_JUNK:
+ case AVIFOURCC_LIST:
+ case AVIFOURCC_idx1:
+ return VLC_SUCCESS;
+ }
}
- return( 1 );
}
-static void __AVI_AddEntryIndex( AVIStreamInfo_t *p_info,
+static void __AVI_AddEntryIndex( avi_stream_t *p_info,
AVIIndexEntry_t *p_index)
{
- AVIIndexEntry_t *p_tmp;
if( p_info->p_index == NULL )
{
p_info->i_idxmax = 16384;
p_info->i_idxnb = 0;
- p_info->p_index = calloc( p_info->i_idxmax,
- sizeof( AVIIndexEntry_t ) );
- if( p_info->p_index == NULL ) {return;}
+ if( !( p_info->p_index = calloc( p_info->i_idxmax,
+ sizeof( AVIIndexEntry_t ) ) ) )
+ {
+ return;
+ }
}
if( p_info->i_idxnb >= p_info->i_idxmax )
{
p_info->i_idxmax += 16384;
- p_tmp = realloc( (void*)p_info->p_index,
- p_info->i_idxmax *
- sizeof( AVIIndexEntry_t ) );
- if( !p_tmp )
- {
- p_info->i_idxmax -= 16384;
- return;
+ if( !( p_info->p_index = realloc( (void*)p_info->p_index,
+ p_info->i_idxmax *
+ sizeof( AVIIndexEntry_t ) ) ) )
+ {
+ return;
}
- p_info->p_index = p_tmp;
}
/* calculate cumulate length */
if( p_info->i_idxnb > 0 )
{
- p_index->i_lengthtotal = p_info->p_index[p_info->i_idxnb-1].i_length +
- p_info->p_index[p_info->i_idxnb-1].i_lengthtotal;
+ p_index->i_lengthtotal =
+ p_info->p_index[p_info->i_idxnb - 1].i_length +
+ p_info->p_index[p_info->i_idxnb - 1].i_lengthtotal;
}
else
{
p_info->p_index[p_info->i_idxnb] = *p_index;
p_info->i_idxnb++;
+
+}
+
+static void AVI_IndexAddEntry( demux_sys_t *p_avi,
+ int i_stream,
+ AVIIndexEntry_t *p_index)
+{
+ __AVI_AddEntryIndex( p_avi->pp_info[i_stream],
+ p_index );
+ if( p_avi->i_movi_lastchunk_pos < p_index->i_pos )
+ {
+ p_avi->i_movi_lastchunk_pos = p_index->i_pos;
+ }
+}
+
+static void AVI_IndexLoad( input_thread_t *p_input )
+{
+ demux_sys_t *p_avi = p_input->p_demux_data;
+
+ avi_chunk_list_t *p_riff;
+ avi_chunk_list_t *p_movi;
+ avi_chunk_idx1_t *p_idx1;
+
+ unsigned int i_stream;
+ unsigned int i_index;
+ off_t i_offset;
+
+ p_riff = (avi_chunk_list_t*)AVI_ChunkFind( &p_avi->ck_root,
+ AVIFOURCC_RIFF, 0);
+
+ p_idx1 = (avi_chunk_idx1_t*)AVI_ChunkFind( p_riff, AVIFOURCC_idx1, 0);
+ p_movi = (avi_chunk_list_t*)AVI_ChunkFind( p_riff, AVIFOURCC_movi, 0);
+
+ if( !p_idx1 )
+ {
+ msg_Warn( p_input, "cannot find idx1 chunk, no index defined" );
+ return;
+ }
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
+ {
+ p_avi->pp_info[i_stream]->i_idxnb = 0;
+ p_avi->pp_info[i_stream]->i_idxmax = 0;
+ p_avi->pp_info[i_stream]->p_index = NULL;
+ }
+ /* *** calculate offset *** */
+ if( p_idx1->i_entry_count > 0 &&
+ p_idx1->entry[0].i_pos < p_movi->i_chunk_pos )
+ {
+ i_offset = p_movi->i_chunk_pos + 8;
+ }
+ else
+ {
+ i_offset = 0;
+ }
+
+ for( i_index = 0; i_index < p_idx1->i_entry_count; i_index++ )
+ {
+ unsigned int i_cat;
+
+ AVI_ParseStreamHeader( p_idx1->entry[i_index].i_fourcc,
+ &i_stream,
+ &i_cat );
+ if( i_stream < p_avi->i_streams &&
+ i_cat == p_avi->pp_info[i_stream]->i_cat )
+ {
+ AVIIndexEntry_t index;
+ index.i_id = p_idx1->entry[i_index].i_fourcc;
+ index.i_flags =
+ p_idx1->entry[i_index].i_flags&(~AVIIF_FIXKEYFRAME);
+ index.i_pos = p_idx1->entry[i_index].i_pos + i_offset;
+ index.i_length = p_idx1->entry[i_index].i_length;
+ AVI_IndexAddEntry( p_avi, i_stream, &index );
+ }
+ }
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
+ {
+ msg_Dbg( p_input,
+ "stream[%d] creating %d index entries",
+ i_stream,
+ p_avi->pp_info[i_stream]->i_idxnb );
+ }
+
}
-static void __AVI_GetIndex( input_thread_t *p_input )
+static void AVI_IndexCreate( input_thread_t *p_input )
{
- AVIIndexEntry_t index;
- byte_t *p_buff;
- riffchunk_t *p_idx1;
- int i_read;
- int i;
- int i_number;
- int i_type;
- int i_totalentry = 0;
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data ;
-
- if( RIFF_FindAndGotoDataChunk( p_input,
- p_avi_demux->p_riff,
- &p_idx1,
- FOURCC_idx1)!=0 )
- {
- msg_Warn( p_input, "cannot find index" );
- RIFF_GoToChunk( p_input, p_avi_demux->p_hdrl );
+ demux_sys_t *p_avi = p_input->p_demux_data;
+
+ avi_chunk_list_t *p_riff;
+ avi_chunk_list_t *p_movi;
+
+ unsigned int i_stream;
+ off_t i_movi_end;
+
+ p_riff = (avi_chunk_list_t*)AVI_ChunkFind( &p_avi->ck_root,
+ AVIFOURCC_RIFF, 0);
+ p_movi = (avi_chunk_list_t*)AVI_ChunkFind( p_riff, AVIFOURCC_movi, 0);
+
+ if( !p_movi )
+ {
+ msg_Err( p_input, "cannot find p_movi" );
return;
}
- p_avi_demux->p_idx1 = p_idx1;
- msg_Dbg( p_input, "loading index" );
- for(;;)
+
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
+ {
+ p_avi->pp_info[i_stream]->i_idxnb = 0;
+ p_avi->pp_info[i_stream]->i_idxmax = 0;
+ p_avi->pp_info[i_stream]->p_index = NULL;
+ }
+ i_movi_end = __MIN( (off_t)(p_movi->i_chunk_pos + p_movi->i_chunk_size),
+ p_input->stream.p_selected_area->i_size );
+
+ AVI_SeekAbsolute( p_input, p_movi->i_chunk_pos + 12);
+ msg_Warn( p_input, "creating index from LIST-movi, will take time !" );
+ for( ;; )
{
- i_read = __MIN( 16*1024, p_idx1->i_size - i_totalentry *16);
- if( ((i_read = input_Peek( p_input, &p_buff, i_read )) < 16 )
- ||( i_totalentry *16 >= p_idx1->i_size ) )
+ avi_packet_t pk;
+
+ if( AVI_PacketGetHeader( p_input, &pk ) )
{
- msg_Dbg( p_input, "read %d idx entries", i_totalentry );
- return;
+ break;
}
- i_read /= 16 ;
- for( i = 0; i < i_read; i++ )
- {
- byte_t *p_peek = p_buff + i * 16;
- i_totalentry++;
- index.i_id = GetDWLE( p_peek );
- index.i_flags = GetDWLE( p_peek+4)&(~AVIIF_FIXKEYFRAME);
- index.i_pos = GetDWLE( p_peek+8);
- index.i_length = GetDWLE(p_peek+12);
- AVI_ParseStreamHeader( index.i_id, &i_number, &i_type );
-
- if( ( i_number < p_avi_demux->i_streams )
- &&(p_avi_demux->pp_info[i_number]->i_cat ==
- AVI_GetESTypeFromTwoCC( i_type )))
+ if( pk.i_stream < p_avi->i_streams &&
+ pk.i_cat == p_avi->pp_info[pk.i_stream]->i_cat )
+ {
+ AVIIndexEntry_t index;
+ index.i_id = pk.i_fourcc;
+ index.i_flags =
+ AVI_GetKeyFlag(p_avi->pp_info[pk.i_stream]->i_codec, pk.i_peek);
+ index.i_pos = pk.i_pos;
+ index.i_length = pk.i_size;
+ AVI_IndexAddEntry( p_avi, pk.i_stream, &index );
+ }
+ else
+ {
+ switch( pk.i_fourcc )
{
- __AVI_AddEntryIndex( p_avi_demux->pp_info[i_number],
- &index );
+ case AVIFOURCC_idx1:
+ goto print_stat;
+ case AVIFOURCC_rec:
+ case AVIFOURCC_JUNK:
+ break;
+ default:
+ msg_Warn( p_input, "need resync, probably broken avi" );
+ if( AVI_PacketSearch( p_input ) )
+ {
+ msg_Warn( p_input, "lost sync, abord index creation" );
+ goto print_stat;
+ }
}
}
- __RIFF_SkipBytes( p_input, 16 * i_read );
+ if( pk.i_pos + pk.i_size >= i_movi_end ||
+ AVI_PacketNext( p_input ) )
+ {
+ break;
+ }
+ }
+
+print_stat:
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
+ {
+ msg_Dbg( p_input,
+ "stream[%d] creating %d index entries",
+ i_stream,
+ p_avi->pp_info[i_stream]->i_idxnb );
+ }
+}
+
+
+/*****************************************************************************
+ * Stream management
+ *****************************************************************************/
+static vlc_bool_t AVI_StreamStart ( input_thread_t *, demux_sys_t *, int );
+static int AVI_StreamSeek ( input_thread_t *, demux_sys_t *, int, mtime_t );
+static void AVI_StreamStop ( input_thread_t *, demux_sys_t *, int );
+static int AVI_StreamStopFinishedStreams( input_thread_t *, demux_sys_t * );
+
+static vlc_bool_t AVI_StreamStart( input_thread_t *p_input,
+ demux_sys_t *p_avi, int i_stream )
+{
+#define p_stream p_avi->pp_info[i_stream]
+ if( !p_stream->p_es )
+ {
+ msg_Warn( p_input, "stream[%d] unselectable", i_stream );
+ return VLC_FALSE;
+ }
+ if( p_stream->b_activated )
+ {
+ msg_Warn( p_input, "stream[%d] already selected", i_stream );
+ return VLC_TRUE;
+ }
+
+ if( !p_stream->p_es->p_decoder_fifo )
+ {
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ input_SelectES( p_input, p_stream->p_es );
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ }
+ p_stream->b_activated = p_stream->p_es->p_decoder_fifo ? VLC_TRUE
+ : VLC_FALSE;
+ if( p_stream->b_activated && p_avi->b_seekable)
+ {
+ AVI_StreamSeek( p_input, p_avi, i_stream, p_avi->i_time );
+ }
+
+ return p_stream->b_activated;
+#undef p_stream
+}
+
+static void AVI_StreamStop( input_thread_t *p_input,
+ demux_sys_t *p_avi, int i_stream )
+{
+#define p_stream p_avi->pp_info[i_stream]
+
+ if( !p_stream->b_activated )
+ {
+ msg_Warn( p_input, "stream[%d] already unselected", i_stream );
+ return;
+ }
+
+ if( p_stream->p_es->p_decoder_fifo )
+ {
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ input_UnselectES( p_input, p_stream->p_es );
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
}
+
+ p_stream->b_activated = VLC_FALSE;
+
+#undef p_stream
}
-/* XXX call after get p_movi */
-static void __AVI_UpdateIndexOffset( input_thread_t *p_input )
+static int AVI_StreamStopFinishedStreams( input_thread_t *p_input,
+ demux_sys_t *p_avi )
{
- int i_stream;
- int b_start = 1;/* if index pos is based on start of file or not (p_movi) */
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
+ unsigned int i_stream;
+ int b_end;
-/* FIXME some work to do :
- * test in the file if it's true, if not do a RIFF_Find...
-*/
-#define p_info p_avi_demux->pp_info[i_stream]
- for( i_stream = 0; i_stream < p_avi_demux->i_streams; i_stream++ )
+ for( i_stream = 0,b_end = VLC_TRUE;
+ i_stream < p_avi->i_streams; i_stream++ )
{
- if( ( p_info->p_index )
- && ( p_info->p_index[0].i_pos < p_avi_demux->p_movi->i_pos + 8 ))
+#define p_stream p_avi->pp_info[i_stream]
+ if( p_stream->i_idxposc >= p_stream->i_idxnb )
{
- b_start = 0;
- break;
+ AVI_StreamStop( p_input, p_avi, i_stream );
+ }
+ else
+ {
+ b_end = VLC_FALSE;
}
+#undef p_stream
}
- if( !b_start )
+ return( b_end );
+}
+/****************************************************************************
+ * AVI_MovieGetLength give max streams length in second
+ ****************************************************************************/
+static mtime_t AVI_MovieGetLength( input_thread_t *p_input, demux_sys_t *p_avi )
+{
+ unsigned int i_stream;
+ mtime_t i_maxlength;
+
+ i_maxlength = 0;
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
{
- for( i_stream = 0; i_stream < p_avi_demux->i_streams; i_stream++ )
+#define p_stream p_avi->pp_info[i_stream]
+ mtime_t i_length;
+ /* fix length for each stream */
+ if( p_stream->i_idxnb < 1 || !p_stream->p_index )
{
- int i;
- if( p_info->p_index )
- {
- for( i = 0; i < p_info->i_idxnb; i++ )
- {
- p_info->p_index[i].i_pos += p_avi_demux->p_movi->i_pos + 8;
- }
- }
+ continue;
+ }
+
+ if( p_stream->i_samplesize )
+ {
+ i_length =
+ (mtime_t)( p_stream->p_index[p_stream->i_idxnb-1].i_lengthtotal +
+ p_stream->p_index[p_stream->i_idxnb-1].i_length ) *
+ (mtime_t)p_stream->i_scale /
+ (mtime_t)p_stream->i_rate /
+ (mtime_t)p_stream->i_samplesize;
+ }
+ else
+ {
+ i_length = (mtime_t)p_stream->i_idxnb *
+ (mtime_t)p_stream->i_scale /
+ (mtime_t)p_stream->i_rate;
}
+
+ msg_Dbg( p_input,
+ "stream[%d] length:"I64Fd" (based on index)",
+ i_stream,
+ i_length );
+ i_maxlength = __MAX( i_maxlength, i_length );
+#undef p_stream
}
-#undef p_info
+
+ return i_maxlength;
}
/*****************************************************************************
* AVIEnd: frees unused data
*****************************************************************************/
static void __AVIEnd ( vlc_object_t * p_this )
-{
+{
input_thread_t * p_input = (input_thread_t *)p_this;
- int i;
- demux_data_avi_file_t *p_avi_demux;
- p_avi_demux = (demux_data_avi_file_t*)p_input->p_demux_data ;
-
- if( p_avi_demux->p_riff )
- RIFF_DeleteChunk( p_input, p_avi_demux->p_riff );
- if( p_avi_demux->p_hdrl )
- RIFF_DeleteChunk( p_input, p_avi_demux->p_hdrl );
- if( p_avi_demux->p_movi )
- RIFF_DeleteChunk( p_input, p_avi_demux->p_movi );
- if( p_avi_demux->p_idx1 )
- RIFF_DeleteChunk( p_input, p_avi_demux->p_idx1 );
- if( p_avi_demux->pp_info )
- {
- for( i = 0; i < p_avi_demux->i_streams; i++ )
- {
- if( p_avi_demux->pp_info[i] )
+ unsigned int i;
+ demux_sys_t *p_avi = p_input->p_demux_data ;
+
+ if( p_avi->pp_info )
+ {
+ for( i = 0; i < p_avi->i_streams; i++ )
+ {
+ if( p_avi->pp_info[i] )
{
- if( p_avi_demux->pp_info[i]->p_index )
+ if( p_avi->pp_info[i]->p_index )
{
- free( p_avi_demux->pp_info[i]->p_index );
- AVI_PESBuffer_Flush( p_input->p_method_data,
- p_avi_demux->pp_info[i] );
+ free( p_avi->pp_info[i]->p_index );
}
- free( p_avi_demux->pp_info[i] );
+ free( p_avi->pp_info[i] );
}
}
- free( p_avi_demux->pp_info );
+ free( p_avi->pp_info );
+ }
+#ifdef __AVI_SUBTITLE__
+ if( p_avi->p_sub )
+ {
+ subtitle_Close( p_avi->p_sub );
+ p_avi->p_sub = NULL;
}
+#endif
+ AVI_ChunkFreeRoot( p_input, &p_avi->ck_root );
+
+ FREE( p_input->p_demux_data );
}
/*****************************************************************************
* AVIInit: check file and initializes AVI structures
*****************************************************************************/
static int AVIInit( vlc_object_t * p_this )
-{
+{
input_thread_t * p_input = (input_thread_t *)p_this;
- riffchunk_t *p_riff,*p_hdrl,*p_movi;
- riffchunk_t *p_avih;
- riffchunk_t *p_strl,*p_strh,*p_strf;
- demux_data_avi_file_t *p_avi_demux;
- es_descriptor_t *p_es = NULL; /* for not warning */
- int i;
-
- p_input->pf_demux = AVIDemux;
-
- if( !( p_input->p_demux_data =
- p_avi_demux = malloc( sizeof(demux_data_avi_file_t) ) ) )
- {
- msg_Err( p_input, "out of memory" );
- return( -1 );
+ avi_chunk_t ck_riff;
+ avi_chunk_list_t *p_riff = (avi_chunk_list_t*)&ck_riff;
+ avi_chunk_list_t *p_hdrl, *p_movi;
+#if 0
+ avi_chunk_list_t *p_INFO;
+ avi_chunk_strz_t *p_name;
+#endif
+ avi_chunk_avih_t *p_avih;
+ demux_sys_t *p_avi;
+ es_descriptor_t *p_es = NULL; /* avoid warning */
+ unsigned int i;
+#ifdef __AVI_SUBTITLE__
+ mtime_t i_microsecperframe = 0; // for some subtitle format
+#endif
+
+ vlc_bool_t b_stream_audio, b_stream_video;
+
+ p_input->pf_demux = AVIDemux_Seekable;
+ if( AVI_TestFile( p_input ) )
+ {
+ msg_Warn( p_input, "avi module discarded (invalid headr)" );
+ return VLC_EGENERIC;
}
- memset( p_avi_demux, 0, sizeof( demux_data_avi_file_t ) );
- p_avi_demux->i_rate = DEFAULT_RATE;
- p_avi_demux->b_seekable = ( ( p_input->stream.b_seekable )
- &&( p_input->stream.i_method == INPUT_METHOD_FILE ) );
/* Initialize access plug-in structures. */
if( p_input->i_mtu == 0 )
p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE;
}
- if( RIFF_TestFileHeader( p_input, &p_riff, FOURCC_AVI ) != 0 )
+ if( !( p_input->p_demux_data =
+ p_avi = malloc( sizeof(demux_sys_t) ) ) )
{
- AVIEnd( p_input );
- msg_Warn( p_input, "RIFF-AVI module discarded" );
- return( -1 );
+ msg_Err( p_input, "out of memory" );
+ return VLC_ENOMEM;
}
- p_avi_demux->p_riff = p_riff;
+ memset( p_avi, 0, sizeof( demux_sys_t ) );
+ p_avi->i_time = 0;
+ p_avi->i_pcr = 0;
+ p_avi->b_seekable = ( ( p_input->stream.b_seekable )
+ &&( p_input->stream.i_method == INPUT_METHOD_FILE ) );
+ p_avi->i_movi_lastchunk_pos = 0;
- if ( RIFF_DescendChunk(p_input) != 0 )
+ /* *** for unseekable stream, automaticaly use AVIDemux_interleaved *** */
+ if( !p_avi->b_seekable || config_GetInt( p_input, "avi-interleaved" ) )
{
- AVIEnd( p_input );
- msg_Err( p_input, "cannot look for subchunk" );
- return ( -1 );
+ p_input->pf_demux = AVIDemux_UnSeekable;
}
- /* it's a riff-avi file, so search for LIST-hdrl */
- if( RIFF_FindListChunk(p_input ,&p_hdrl,p_riff, FOURCC_hdrl) != 0 )
+ if( AVI_ChunkReadRoot( p_input, &p_avi->ck_root, p_avi->b_seekable ) )
{
- AVIEnd( p_input );
- msg_Err( p_input, "cannot find \"LIST-hdrl\"" );
- return( -1 );
+ msg_Err( p_input, "avi module discarded (invalid file)" );
+ return VLC_EGENERIC;
}
- p_avi_demux->p_hdrl = p_hdrl;
+ AVI_ChunkDumpDebug( p_input, &p_avi->ck_root );
- if( RIFF_DescendChunk(p_input) != 0 )
+
+ p_riff = (avi_chunk_list_t*)AVI_ChunkFind( &p_avi->ck_root,
+ AVIFOURCC_RIFF, 0 );
+ p_hdrl = (avi_chunk_list_t*)AVI_ChunkFind( p_riff,
+ AVIFOURCC_hdrl, 0 );
+ p_movi = (avi_chunk_list_t*)AVI_ChunkFind( p_riff,
+ AVIFOURCC_movi, 0 );
+#if 0
+ p_INFO = (avi_chunk_list_t*)AVI_ChunkFind( p_riff,
+ AVIFOURCC_INFO, 0 );
+ p_name = (avi_chunk_strz_t*)AVI_ChunkFind( p_INFO,
+ AVIFOURCC_INAM, 0 );
+ if( p_name )
{
- AVIEnd( p_input );
- msg_Err( p_input, "cannot look for subchunk" );
- return ( -1 );
+
}
- /* in LIST-hdrl search avih */
- if( RIFF_FindAndLoadChunk( p_input, p_hdrl,
- &p_avih, FOURCC_avih ) != 0 )
+#endif
+
+ if( !p_hdrl || !p_movi )
{
- AVIEnd( p_input );
- msg_Err( p_input, "cannot find \"avih\" chunk" );
- return( -1 );
+ msg_Err( p_input, "avi module discarded (invalid file)" );
+ return VLC_EGENERIC;
}
- AVI_Parse_avih( &p_avi_demux->avih, p_avih->p_data->p_payload_start );
- RIFF_DeleteChunk( p_input, p_avih );
-
- if( p_avi_demux->avih.i_streams == 0 )
- /* no stream found, perhaps it would be cool to find it */
+
+ if( !( p_avih = (avi_chunk_avih_t*)AVI_ChunkFind( p_hdrl,
+ AVIFOURCC_avih, 0 ) ) )
{
- AVIEnd( p_input );
+ msg_Err( p_input, "cannot find avih chunk" );
+ return VLC_EGENERIC;
+ }
+ p_avi->i_streams = AVI_ChunkCount( p_hdrl, AVIFOURCC_strl );
+ if( p_avih->i_streams != p_avi->i_streams )
+ {
+ msg_Warn( p_input,
+ "found %d stream but %d are declared",
+ p_avi->i_streams,
+ p_avih->i_streams );
+ }
+ if( p_avi->i_streams == 0 )
+ {
+ AVIEnd( p_input );
msg_Err( p_input, "no stream defined!" );
- return( -1 );
+ return VLC_EGENERIC;
}
/* create one program */
vlc_mutex_unlock( &p_input->stream.stream_lock );
AVIEnd( p_input );
msg_Err( p_input, "cannot init stream" );
- return( -1 );
+ return VLC_EGENERIC;
}
if( input_AddProgram( p_input, 0, 0) == NULL )
{
vlc_mutex_unlock( &p_input->stream.stream_lock );
AVIEnd( p_input );
msg_Err( p_input, "cannot add program" );
- return( -1 );
+ return VLC_EGENERIC;
}
p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
- p_input->stream.i_mux_rate = p_avi_demux->avih.i_maxbytespersec / 50;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- /* now read info on each stream and create ES */
- p_avi_demux->i_streams = p_avi_demux->avih.i_streams;
-
- p_avi_demux->pp_info = calloc( p_avi_demux->i_streams,
- sizeof( AVIStreamInfo_t* ) );
- memset( p_avi_demux->pp_info,
- 0,
- sizeof( AVIStreamInfo_t* ) * p_avi_demux->i_streams );
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
- for( i = 0 ; i < p_avi_demux->i_streams; i++ )
- {
-#define p_info p_avi_demux->pp_info[i]
- p_info = malloc( sizeof(AVIStreamInfo_t ) );
- memset( p_info, 0, sizeof( AVIStreamInfo_t ) );
+ /* print informations on streams */
+ msg_Dbg( p_input, "AVIH: %d stream, flags %s%s%s%s ",
+ p_avi->i_streams,
+ p_avih->i_flags&AVIF_HASINDEX?" HAS_INDEX":"",
+ p_avih->i_flags&AVIF_MUSTUSEINDEX?" MUST_USE_INDEX":"",
+ p_avih->i_flags&AVIF_ISINTERLEAVED?" IS_INTERLEAVED":"",
+ p_avih->i_flags&AVIF_TRUSTCKTYPE?" TRUST_CKTYPE":"" );
+ {
+ input_info_category_t *p_cat = input_InfoCategory( p_input, "Avi" );
+ input_AddInfo( p_cat, "Number of streams", "%d", p_avi->i_streams );
+ input_AddInfo( p_cat, "Flags", "%s%s%s%s",
+ p_avih->i_flags&AVIF_HASINDEX?" HAS_INDEX":"",
+ p_avih->i_flags&AVIF_MUSTUSEINDEX?" MUST_USE_INDEX":"",
+ p_avih->i_flags&AVIF_ISINTERLEAVED?" IS_INTERLEAVED":"",
+ p_avih->i_flags&AVIF_TRUSTCKTYPE?" TRUST_CKTYPE":"" );
+ }
- if( ( RIFF_FindListChunk(p_input,
- &p_strl,p_hdrl, FOURCC_strl) != 0 )
- ||( RIFF_DescendChunk(p_input) != 0 ))
- {
- AVIEnd( p_input );
- msg_Err( p_input, "cannot find \"LIST-strl\"" );
- return( -1 );
- }
-
- /* in LIST-strl search strh */
- if( RIFF_FindAndLoadChunk( p_input, p_hdrl,
- &p_strh, FOURCC_strh ) != 0 )
+ /* now read info on each stream and create ES */
+ p_avi->pp_info = calloc( p_avi->i_streams,
+ sizeof( avi_stream_t* ) );
+ memset( p_avi->pp_info,
+ 0,
+ sizeof( avi_stream_t* ) * p_avi->i_streams );
+
+ for( i = 0 ; i < p_avi->i_streams; i++ )
+ {
+ avi_chunk_list_t *p_avi_strl;
+ avi_chunk_strh_t *p_avi_strh;
+ avi_chunk_strf_auds_t *p_avi_strf_auds;
+ avi_chunk_strf_vids_t *p_avi_strf_vids;
+ int i_init_size;
+ void *p_init_data;
+#define p_info p_avi->pp_info[i]
+ p_info = malloc( sizeof(avi_stream_t ) );
+ memset( p_info, 0, sizeof( avi_stream_t ) );
+
+ p_avi_strl = (avi_chunk_list_t*)AVI_ChunkFind( p_hdrl,
+ AVIFOURCC_strl, i );
+ p_avi_strh = (avi_chunk_strh_t*)AVI_ChunkFind( p_avi_strl,
+ AVIFOURCC_strh, 0 );
+ p_avi_strf_auds = (avi_chunk_strf_auds_t*)
+ p_avi_strf_vids = (avi_chunk_strf_vids_t*)
+ AVI_ChunkFind( p_avi_strl, AVIFOURCC_strf, 0 );
+
+ if( !p_avi_strl || !p_avi_strh ||
+ ( !p_avi_strf_auds && !p_avi_strf_vids ) )
{
- RIFF_DeleteChunk( p_input, p_strl );
- AVIEnd( p_input );
- msg_Err( p_input, "cannot find \"strh\"" );
- return( -1 );
+ msg_Warn( p_input, "stream[%d] incomlete", i );
+ continue;
}
- AVI_Parse_Header( &p_info->header,
- p_strh->p_data->p_payload_start);
- RIFF_DeleteChunk( p_input, p_strh );
- /* in LIST-strl search strf */
- if( RIFF_FindAndLoadChunk( p_input, p_hdrl,
- &p_strf, FOURCC_strf ) != 0 )
- {
- RIFF_DeleteChunk( p_input, p_strl );
- AVIEnd( p_input );
- msg_Err( p_input, "cannot find \"strf\"" );
- return( -1 );
- }
- /* we don't get strd, it's useless for divx,opendivx,mepgaudio */
- if( RIFF_AscendChunk(p_input, p_strl) != 0 )
+ /* *** Init p_info *** */
+ p_info->i_rate = p_avi_strh->i_rate;
+ p_info->i_scale = p_avi_strh->i_scale;
+ p_info->i_samplesize = p_avi_strh->i_samplesize;
+ msg_Dbg( p_input, "stream[%d] rate:%d scale:%d samplesize:%d",
+ i,
+ p_info->i_rate, p_info->i_scale, p_info->i_samplesize );
+ switch( p_avi_strh->i_type )
{
- RIFF_DeleteChunk( p_input, p_strf );
- RIFF_DeleteChunk( p_input, p_strl );
- AVIEnd( p_input );
- msg_Err( p_input, "cannot go out (\"strl\")" );
- return( -1 );
- }
-
- /* add one ES */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- p_es = input_AddES( p_input,
- p_input->stream.p_selected_program, 1+i,
- p_strf->i_size );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- p_es->i_stream_id =i; /* XXX: i don't use it */
-
- switch( p_info->header.i_type )
- {
- case( FOURCC_auds ):
- p_es->i_cat = AUDIO_ES;
- AVI_Parse_WaveFormatEx( &p_info->audio_format,
- p_strf->p_data->p_payload_start );
- p_es->i_fourcc = AVI_AudioGetType(
- p_info->audio_format.i_formattag );
+ case( AVIFOURCC_auds ):
+ p_info->i_cat = AUDIO_ES;
+ p_info->i_fourcc =
+ AVI_FourccGetCodec( AUDIO_ES,
+ p_avi_strf_auds->p_wf->wFormatTag );
+ p_info->i_codec = p_info->i_fourcc;
+ i_init_size = p_avi_strf_auds->i_chunk_size;
+ p_init_data = p_avi_strf_auds->p_wf;
+ msg_Dbg( p_input, "stream[%d] audio(0x%x) %d channels %dHz %dbits",
+ i,
+ p_avi_strf_auds->p_wf->wFormatTag,
+ p_avi_strf_auds->p_wf->nChannels,
+ p_avi_strf_auds->p_wf->nSamplesPerSec,
+ p_avi_strf_auds->p_wf->wBitsPerSample );
+ {
+ char hepp[sizeof("Stream") + 10];
+ input_info_category_t *p_cat;
+ sprintf(hepp, "Stream %d", i);
+ p_cat = input_InfoCategory( p_input, hepp);
+ input_AddInfo( p_cat, "Type", "audio(0x%x)",
+ p_avi_strf_auds->p_wf->wFormatTag );
+ input_AddInfo( p_cat, "Codec", "%4.4s",
+ (const char*)&(p_info->i_codec) );
+ input_AddInfo( p_cat, "Channels", "%d",
+ p_avi_strf_auds->p_wf->nChannels );
+ input_AddInfo( p_cat, "Samplerate", "%d",
+ p_avi_strf_auds->p_wf->nSamplesPerSec );
+ input_AddInfo( p_cat, "Bits Per Sample", "%d",
+ p_avi_strf_auds->p_wf->wBitsPerSample );
+ }
break;
-
- case( FOURCC_vids ):
- p_es->i_cat = VIDEO_ES;
- AVI_Parse_BitMapInfoHeader( &p_info->video_format,
- p_strf->p_data->p_payload_start );
- /* XXX quick hack for playing ffmpeg video, I don't know
+ case( AVIFOURCC_vids ):
+ p_info->i_cat = VIDEO_ES;
+ /* XXX quick hack for playing ffmpeg video, I don't know
who is doing something wrong */
- p_info->header.i_samplesize = 0;
- p_es->i_fourcc = p_info->video_format.i_compression;
+ p_info->i_samplesize = 0;
+ p_info->i_fourcc = p_avi_strf_vids->p_bih->biCompression;
+ p_info->i_codec =
+ AVI_FourccGetCodec( VIDEO_ES, p_info->i_fourcc );
+ i_init_size = p_avi_strf_vids->i_chunk_size;
+ p_init_data = p_avi_strf_vids->p_bih;
+ msg_Dbg( p_input, "stream[%d] video(%4.4s) %dx%d %dbpp %ffps",
+ i,
+ (char*)&p_avi_strf_vids->p_bih->biCompression,
+ p_avi_strf_vids->p_bih->biWidth,
+ p_avi_strf_vids->p_bih->biHeight,
+ p_avi_strf_vids->p_bih->biBitCount,
+ (float)p_info->i_rate /
+ (float)p_info->i_scale );
+ {
+ char hepp[sizeof("Stream") + 10];
+ input_info_category_t *p_cat;
+ sprintf(hepp, "stream %d", i);
+ p_cat = input_InfoCategory( p_input, hepp);
+ input_AddInfo( p_cat, "Type", "video" );
+ input_AddInfo( p_cat, "Codec", "%4.4s",
+ (const char*)&(p_info->i_codec) );
+ input_AddInfo( p_cat, "Resolution", "%dx%d",
+ p_avi_strf_vids->p_bih->biWidth,
+ p_avi_strf_vids->p_bih->biHeight );
+ input_AddInfo( p_cat, "Frame Rate", "%f",
+ (float)p_info->i_rate /
+ (float)p_info->i_scale );
+ input_AddInfo( p_cat, "Bits Per Pixel", "%d",
+ p_avi_strf_vids->p_bih->biBitCount );
+ }
+#ifdef __AVI_SUBTITLE__
+ if( i_microsecperframe == 0 )
+ {
+ i_microsecperframe = (mtime_t)1000000 *
+ (mtime_t)p_info->i_scale /
+ (mtime_t)p_info->i_rate;
+ }
+#endif
break;
default:
- msg_Err( p_input, "unknown stream(%d) type", i );
- p_es->i_cat = UNKNOWN_ES;
+ msg_Warn( p_input, "stream[%d] unknown type", i );
+ p_info->i_cat = UNKNOWN_ES;
+ i_init_size = 0;
+ p_init_data = NULL;
+ {
+ char psz_cat[32]; /* We'll clip i just in case */
+ input_info_category_t *p_cat;
+ sprintf( psz_cat, "stream %d", __MIN( i, 100000 ) );
+ p_cat = input_InfoCategory( p_input, psz_cat );
+ input_AddInfo( p_cat, "Type", "unknown" );
+ }
break;
}
- p_info->p_es = p_es;
- p_info->i_cat = p_es->i_cat;
- /* We copy strf for decoder in p_es->p_demux_data */
- memcpy( p_es->p_demux_data,
- p_strf->p_data->p_payload_start,
- p_strf->i_size );
- RIFF_DeleteChunk( p_input, p_strf );
- RIFF_DeleteChunk( p_input, p_strl );
-#undef p_info
+ p_info->b_activated = VLC_FALSE;
+ /* add one ES */
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ p_info->p_es =
+ p_es = input_AddES( p_input,
+ p_input->stream.p_selected_program, 1+i,
+ 0 );
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
+ p_es->i_stream_id =i; /* XXX: i don't use it */
+ p_es->i_fourcc = p_info->i_fourcc;
+ p_es->i_cat = p_info->i_cat;
+ if( p_es->i_cat == AUDIO_ES )
+ {
+ p_es->p_waveformatex = malloc( i_init_size );
+ memcpy( p_es->p_waveformatex, p_init_data, i_init_size );
+ }
+ else if( p_es->i_cat == VIDEO_ES )
+ {
+ p_es->p_bitmapinfoheader = malloc( i_init_size );
+ memcpy( p_es->p_bitmapinfoheader, p_init_data, i_init_size );
+ }
+#undef p_info
}
-
-
- /* go out of p_hdrl */
- if( RIFF_AscendChunk(p_input, p_hdrl) != 0)
+#ifdef __AVI_SUBTITLE__
+ if( ( p_avi->p_sub = subtitle_New( p_input, NULL, i_microsecperframe ) ) )
{
- AVIEnd( p_input );
- msg_Err( p_input, "cannot go out (\"hdrl\")" );
- return( -1 );
+ subtitle_Select( p_avi->p_sub );
}
+#endif
- /* go to movi chunk to get it*/
- if( RIFF_FindListChunk(p_input ,&p_movi,p_riff, FOURCC_movi) != 0 )
+ if( config_GetInt( p_input, "avi-index" ) )
{
- msg_Err( p_input, "cannot find \"LIST-movi\"" );
- AVIEnd( p_input );
- return( -1 );
+ if( p_avi->b_seekable )
+ {
+ AVI_IndexCreate( p_input );
+ }
+ else
+ {
+ msg_Warn( p_input, "cannot create index (unseekable stream)" );
+ AVI_IndexLoad( p_input );
+ }
}
- p_avi_demux->p_movi = p_movi;
-
- /* get index XXX need to have p_movi */
- if( p_avi_demux->b_seekable )
+ else
{
- /* get index */
- __AVI_GetIndex( p_input );
- /* try to get i_idxoffset for each stream */
- __AVI_UpdateIndexOffset( p_input );
- /* to make sure to go the begining unless demux will see a seek */
- RIFF_GoToChunk( p_input, p_avi_demux->p_movi );
-
+ AVI_IndexLoad( p_input );
}
- else
+
+ /* *** movie length in sec *** */
+ p_avi->i_length = AVI_MovieGetLength( p_input, p_avi );
+ if( p_avi->i_length < (mtime_t)p_avih->i_totalframes *
+ (mtime_t)p_avih->i_microsecperframe /
+ (mtime_t)1000000 )
{
- msg_Warn( p_input, "no index!" );
+ msg_Warn( p_input, "broken or missing index, 'seek' will be axproximative or will have strange behavour" );
}
- if( RIFF_DescendChunk( p_input ) != 0 )
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ if( p_avi->i_length )
{
- AVIEnd( p_input );
- msg_Err( p_input, "cannot go in (\"movi\")" );
- return( -1 );
+ p_input->stream.i_mux_rate =
+ p_input->stream.p_selected_area->i_size / 50 / p_avi->i_length;
+ }
+ else
+ {
+ p_input->stream.i_mux_rate = 0;
}
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
- /* print informations on streams */
- msg_Dbg( p_input, "AVIH: %d stream, flags %s%s%s%s ",
- p_avi_demux->i_streams,
- p_avi_demux->avih.i_flags&AVIF_HASINDEX?" HAS_INDEX":"",
- p_avi_demux->avih.i_flags&AVIF_MUSTUSEINDEX?" MUST_USE_INDEX":"",
- p_avi_demux->avih.i_flags&AVIF_ISINTERLEAVED?" IS_INTERLEAVED":"",
- p_avi_demux->avih.i_flags&AVIF_TRUSTCKTYPE?" TRUST_CKTYPE":"" );
+ b_stream_audio = VLC_FALSE;
+ b_stream_video = VLC_FALSE;
- for( i = 0; i < p_avi_demux->i_streams; i++ )
+ for( i = 0; i < p_avi->i_streams; i++ )
{
-#define p_info p_avi_demux->pp_info[i]
+#define p_info p_avi->pp_info[i]
switch( p_info->p_es->i_cat )
{
case( VIDEO_ES ):
- msg_Dbg( p_input, "video(%4.4s) %dx%d %dbpp %ffps",
- (char*)&p_info->video_format.i_compression,
- p_info->video_format.i_width,
- p_info->video_format.i_height,
- p_info->video_format.i_bitcount,
- (float)p_info->header.i_rate /
- (float)p_info->header.i_scale );
- if( (p_avi_demux->p_info_video == NULL) )
+ if( !b_stream_video )
{
- p_avi_demux->p_info_video = p_info;
- /* TODO add test to see if a decoder has been found */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- input_SelectES( p_input, p_info->p_es );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
+ b_stream_video = AVI_StreamStart( p_input, p_avi, i );
}
break;
case( AUDIO_ES ):
- msg_Dbg( p_input, "audio(0x%x) %d channels %dHz %dbits",
- p_info->audio_format.i_formattag,
- p_info->audio_format.i_channels,
- p_info->audio_format.i_samplespersec,
- p_info->audio_format.i_bitspersample );
- if( (p_avi_demux->p_info_audio == NULL) )
+ if( !b_stream_audio )
{
- p_avi_demux->p_info_audio = p_info;
- vlc_mutex_lock( &p_input->stream.stream_lock );
- input_SelectES( p_input, p_info->p_es );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
+ b_stream_audio = AVI_StreamStart( p_input, p_avi, i );
}
break;
default:
break;
}
-#undef p_info
+#undef p_info
}
-
- /* we select the first audio and video ES */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- if( !p_avi_demux->p_info_video )
+ if( !b_stream_video )
{
msg_Warn( p_input, "no video stream found" );
}
- if( !p_avi_demux->p_info_audio )
+ if( !b_stream_audio )
{
msg_Warn( p_input, "no audio stream found!" );
}
+
+ vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.p_selected_program->b_is_ok = 1;
vlc_mutex_unlock( &p_input->stream.stream_lock );
- return( 0 );
-}
-
+ if( p_avi->b_seekable )
+ {
+ AVI_ChunkGoto( p_input, p_movi );
+ }
+ else
+ {
+ // already at begining of p_movi
+ }
+ AVI_SkipBytes( p_input, 12 ); // enter in p_movi
+ p_avi->i_movi_begin = p_movi->i_chunk_pos;
+ return VLC_SUCCESS;
+}
* Function to convert pts to chunk or byte
*****************************************************************************/
-static inline mtime_t AVI_PTSToChunk( AVIStreamInfo_t *p_info,
+static inline mtime_t AVI_PTSToChunk( avi_stream_t *p_info,
mtime_t i_pts )
{
- return( (mtime_t)((s64)i_pts *
- (s64)p_info->header.i_rate /
- (s64)p_info->header.i_scale /
- (s64)1000000 ) );
+ return (mtime_t)((int64_t)i_pts *
+ (int64_t)p_info->i_rate /
+ (int64_t)p_info->i_scale /
+ (int64_t)1000000 );
}
-static inline mtime_t AVI_PTSToByte( AVIStreamInfo_t *p_info,
+static inline mtime_t AVI_PTSToByte( avi_stream_t *p_info,
mtime_t i_pts )
{
- return( (mtime_t)((s64)i_pts *
- (s64)p_info->header.i_samplesize *
- (s64)p_info->header.i_rate /
- (s64)p_info->header.i_scale /
- (s64)1000000 ) );
+ return (mtime_t)((int64_t)i_pts *
+ (int64_t)p_info->i_rate /
+ (int64_t)p_info->i_scale /
+ (int64_t)1000000 *
+ (int64_t)p_info->i_samplesize );
+}
+
+static mtime_t AVI_GetDPTS( avi_stream_t *p_stream, int i_count )
+{
+ if( p_stream->i_samplesize )
+ {
+ return (mtime_t)( (int64_t)1000000 *
+ (int64_t)i_count *
+ (int64_t)p_stream->i_scale /
+ (int64_t)p_stream->i_rate /
+ (int64_t)p_stream->i_samplesize );
+ }
+ else
+ {
+ return (mtime_t)( (int64_t)1000000 *
+ (int64_t)i_count *
+ (int64_t)p_stream->i_scale /
+ (int64_t)p_stream->i_rate);
+ }
}
-static mtime_t AVI_GetPTS( AVIStreamInfo_t *p_info )
+
+static mtime_t AVI_GetPTS( avi_stream_t *p_info )
{
-
- if( p_info->header.i_samplesize )
+
+ if( p_info->i_samplesize )
{
/* we need a valid entry we will emulate one */
- int i_len;
+ int64_t i_len;
if( p_info->i_idxposc == p_info->i_idxnb )
{
if( p_info->i_idxposc )
}
else
{
- i_len = p_info->i_idxposb;
+ i_len = p_info->i_idxposb;
/* no valid entry use only offset*/
}
}
i_len = p_info->p_index[p_info->i_idxposc].i_lengthtotal
+ p_info->i_idxposb;
}
- return( (mtime_t)( (s64)1000000 *
- (s64)i_len *
- (s64)p_info->header.i_scale /
- (s64)p_info->header.i_rate /
- (s64)p_info->header.i_samplesize ) );
+ return (mtime_t)( (int64_t)1000000 *
+ (int64_t)i_len *
+ (int64_t)p_info->i_scale /
+ (int64_t)p_info->i_rate /
+ (int64_t)p_info->i_samplesize );
}
else
{
- /* even if p_info->i_idxposc isn't valid, there isn't any probllem */
- return( (mtime_t)( (s64)1000000 *
- (s64)(p_info->i_idxposc ) *
- (s64)p_info->header.i_scale /
- (s64)p_info->header.i_rate) );
+ /* even if p_info->i_idxposc isn't valid, there isn't any problem */
+ return (mtime_t)( (int64_t)1000000 *
+ (int64_t)(p_info->i_idxposc ) *
+ (int64_t)p_info->i_scale /
+ (int64_t)p_info->i_rate);
}
}
-
-/*****************************************************************************
- * Functions to acces streams data
- * Uses it, because i plane to read unseekable stream
- * Don't work for the moment for unseekable stream
- * XXX NEVER set directly i_idxposc and i_idxposb unless you know what you do
- *****************************************************************************/
-
-/* FIXME FIXME change b_pad to number of bytes to skipp after reading */
-static int __AVI_GetDataInPES( input_thread_t *p_input,
- pes_packet_t **pp_pes,
- int i_size,
- int b_pad )
+static int AVI_StreamChunkFind( input_thread_t *p_input,
+ unsigned int i_stream )
{
+ demux_sys_t *p_avi = p_input->p_demux_data;
+ avi_packet_t avi_pk;
- int i_read;
- data_packet_t *p_data;
-
-
- if( !(*pp_pes = input_NewPES( p_input->p_method_data ) ) )
- {
- return( 0 );
- }
-
-
- if( !i_size )
- {
- p_data = input_NewPacket( p_input->p_method_data, 0 );
- (*pp_pes)->p_first = (*pp_pes)->p_last = p_data;
- (*pp_pes)->i_nb_data = 1;
- (*pp_pes)->i_pes_size = 0;
- return( 0 );
- }
-
- if( ( i_size&1 )&&( b_pad ) )
- {
- b_pad = 1;
- i_size++;
- }
- else
- {
- b_pad = 0;
- }
+ /* find first chunk of i_stream that isn't in index */
- do
+ if( p_avi->i_movi_lastchunk_pos >= p_avi->i_movi_begin )
{
- i_read = input_SplitBuffer(p_input, &p_data, __MIN( i_size -
- (*pp_pes)->i_pes_size, 1024 ) );
- if( i_read < 0 )
- {
- return( (*pp_pes)->i_pes_size );
- }
- if( !(*pp_pes)->p_first )
+ AVI_SeekAbsolute( p_input, p_avi->i_movi_lastchunk_pos );
+ if( AVI_PacketNext( p_input ) )
{
- (*pp_pes)->p_first =
- (*pp_pes)->p_last = p_data;
- (*pp_pes)->i_nb_data = 1;
- (*pp_pes)->i_pes_size = i_read;
+ return VLC_EGENERIC;
}
- else
- {
- (*pp_pes)->p_last->p_next =
- (*pp_pes)->p_last = p_data;
- (*pp_pes)->i_nb_data++;
- (*pp_pes)->i_pes_size += i_read;
- }
- } while( ((*pp_pes)->i_pes_size < i_size)&&( i_read ) );
-
- if( b_pad )
- {
- (*pp_pes)->i_pes_size--;
- (*pp_pes)->p_last->p_payload_end--;
- i_size--;
- }
-
- return( i_size );
-}
-
-static int __AVI_SeekAndGetChunk( input_thread_t *p_input,
- AVIStreamInfo_t *p_info )
-{
- pes_packet_t *p_pes;
- int i_length, i_ret;
-
- i_length = __MIN( p_info->p_index[p_info->i_idxposc].i_length
- - p_info->i_idxposb,
- BUFFER_MAXSPESSIZE );
-
- AVI_SeekAbsolute( p_input,
- (off_t)p_info->p_index[p_info->i_idxposc].i_pos +
- p_info->i_idxposb + 8);
-
- i_ret = __AVI_GetDataInPES( p_input, &p_pes, i_length , 0);
-
- if( i_ret != i_length )
- {
- return( 0 );
- }
- /* TODO test key frame if i_idxposb == 0*/
- AVI_PESBuffer_Add( p_input->p_method_data,
- p_info,
- p_pes,
- p_info->i_idxposc,
- p_info->i_idxposb );
- return( 1 );
-}
-/* TODO check if it's correct (humm...) and optimisation ... */
-/* return 0 if we choose to get only the ck we want
- * 1 if index is invalid
- * 2 if there is a ck_other before ck_info and the last proced ck_info*/
-/* XXX XXX XXX avi file is some BIG shit, and sometime index give
- * a refenrence to the same chunk BUT with a different size ( usually 0 )
- */
-
-static inline int __AVI_GetChunkMethod( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- AVIStreamInfo_t *p_other )
-{
- int i_info_pos;
- int i_other_pos;
-
- int i_info_pos_last;
- int i_other_pos_last;
-
- /*If we don't have a valid entry we need to parse from last
- defined chunk and it's the only way that we return 1*/
- if( p_info->i_idxposc >= p_info->i_idxnb )
- {
- return( 1 );
- }
-
- /* KNOW we have a valid entry for p_info */
- /* we return 0 if we haven't an valid entry for p_other */
- if( ( !p_other )||( p_other->i_idxposc >= p_other->i_idxnb ) )
- {
- return( 0 );
- }
-
- /* KNOW there are 2 streams with valid entry */
-
- /* we return 0 if for one of the two streams we will not read
- chunk-aligned */
- if( ( p_info->i_idxposb )||( p_other->i_idxposb ) )
- {
- return( 0 );
- }
-
- /* KNOW we have a valid entry for the 2 streams
- and for the 2 we want an aligned chunk (given by i_idxposc )*/
- /* if in stream, the next chunk is back than the one we
- have just read, it's useless to parse */
- i_info_pos = p_info->p_index[p_info->i_idxposc].i_pos;
- i_other_pos = p_other->p_index[p_other->i_idxposc].i_pos ;
-
- i_info_pos_last = p_info->i_idxposc ?
- p_info->p_index[p_info->i_idxposc - 1].i_pos : 0;
- i_other_pos_last = p_other->i_idxposc ?
- p_other->p_index[p_other->i_idxposc - 1].i_pos : 0 ;
-
-
- if( ( ( p_info->i_idxposc )&&( i_info_pos <= i_info_pos_last ) ) ||
- ( ( p_other->i_idxposc )&&( i_other_pos <= i_other_pos_last ) ) )
- {
- return( 0 );
}
-
- /* KNOW for the 2 streams, the ck we want are after the last read
- or it's the first */
-
- /* if the first ck_other we want isn't between ck_info_last
- and ck_info, don't parse */
- /* TODO fix this, use also number in buffered PES */
- if( ( i_other_pos > i_info_pos) /* ck_other too far */
- ||( i_other_pos < i_info_pos_last ) ) /* it's too late for ck_other */
- {
- return( 0 );
- }
-
- /* we Know we will find ck_other, and before ck_info
- "if ck_info is too far" will be handle after */
- return( 2 );
-}
-
-
-static inline int __AVI_ChooseSize( int l1, int l2 )
-{
- /* XXX l2 is prefered if 0 otherwise min not equal to 0 */
- if( !l2 )
- {
- return( 0 );
- }
- return( !l1 ? l2 : __MIN( l1,l2 ) );
-}
-
-/* We know we will read chunk align */
-static int __AVI_GetAndPutChunkInBuffer( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- int i_size,
- int i_ck )
-{
-
- pes_packet_t *p_pes;
- int i_length;
-
- i_length = __MIN( i_size, BUFFER_MAXSPESSIZE );
-
- /* Skip chunk header */
-
- if( __AVI_GetDataInPES( p_input, &p_pes, i_length + 8,1 ) != i_length +8 )
+ else
{
- return( 0 );
+ AVI_SeekAbsolute( p_input, p_avi->i_movi_begin );
}
- p_pes->p_first->p_payload_start += 8;
- p_pes->i_pes_size -= 8;
- i_size = GetDWLE( p_pes->p_first->p_demux_start + 4);
-
- AVI_PESBuffer_Add( p_input->p_method_data,
- p_info,
- p_pes,
- i_ck,
- 0 );
- /* skip unwanted bytes */
- if( i_length != i_size)
+ for( ;; )
{
- msg_Err( p_input, "Chunk Size mismatch" );
- AVI_SeekAbsolute( p_input,
- __EVEN( AVI_TellAbsolute( p_input ) +
- i_size - i_length ) );
- }
- return( 1 );
-}
-/* XXX Don't use this function directly ! XXX */
-static int __AVI_GetChunk( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- int b_load )
-{
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
- AVIStreamInfo_t *p_other;
- int i_method;
- off_t i_posmax;
- int i;
-
-#define p_info_i p_avi_demux->pp_info[i]
- while( p_info->p_pes_first )
- {
- if( ( p_info->p_pes_first->i_posc == p_info->i_idxposc )
- &&( p_info->i_idxposb >= p_info->p_pes_first->i_posb )
- &&( p_info->i_idxposb < p_info->p_pes_first->i_posb +
- p_info->p_pes_first->p_pes->i_pes_size ) )
-
- {
- return( 1 ); /* we have it in buffer */
- }
- else
+ if( AVI_PacketGetHeader( p_input, &avi_pk ) )
{
- AVI_PESBuffer_Drop( p_input->p_method_data, p_info );
+ msg_Warn( p_input, "cannot get packet header" );
+ return VLC_EGENERIC;
}
- }
- /* up to now we handle only one audio and video streams at the same time */
- p_other = (p_info == p_avi_demux->p_info_video ) ?
- p_avi_demux->p_info_audio : p_avi_demux->p_info_video ;
-
- i_method = __AVI_GetChunkMethod( p_input, p_info, p_other );
-
- if( !i_method )
- {
- /* get directly the good chunk */
- return( b_load ? __AVI_SeekAndGetChunk( p_input, p_info ) : 1 );
- }
- /* We will parse
- * because invalid index
- * or will find ck_other before ck_info
- */
-// msg_Warn( p_input, "method %d", i_method );
- /* we will calculate the better position we have to reach */
- if( i_method == 1 )
- {
- /* invalid index */
- /* the position max we have already reached */
- /* FIXME this isn't the better because sometime will fail to
- put in buffer p_other since it could be too far */
- AVIStreamInfo_t *p_info_max = p_info;
-
- for( i = 0; i < p_avi_demux->i_streams; i++ )
+ if( avi_pk.i_stream >= p_avi->i_streams ||
+ ( avi_pk.i_cat != AUDIO_ES && avi_pk.i_cat != VIDEO_ES ) )
{
- if( p_info_i->i_idxnb )
+ switch( avi_pk.i_fourcc )
{
- if( p_info_max->i_idxnb )
- {
- if( p_info_i->p_index[p_info_i->i_idxnb -1 ].i_pos >
- p_info_max->p_index[p_info_max->i_idxnb -1 ].i_pos )
+ case AVIFOURCC_LIST:
+ AVI_SkipBytes( p_input, 12 );
+ break;
+ default:
+ if( AVI_PacketNext( p_input ) )
{
- p_info_max = p_info_i;
+ return VLC_EGENERIC;
}
- }
- else
- {
- p_info_max = p_info_i;
- }
- }
- }
- if( p_info_max->i_idxnb )
- {
- /* be carefull that size between index and ck can sometime be
- different without any error (and other time it's an error) */
- i_posmax = p_info_max->p_index[p_info_max->i_idxnb -1 ].i_pos;
- /* so choose this, and I know that we have already reach it */
- }
- else
- {
- i_posmax = p_avi_demux->p_movi->i_pos + 12;
- }
- }
- else
- {
- if( !b_load )
- {
- return( 1 ); /* all is ok */
- }
- /* valid index */
- /* we know that the entry and the last one are valid for the 2 stream */
- /* and ck_other will come *before* index so go directly to it*/
- i_posmax = p_other->p_index[p_other->i_idxposc].i_pos;
- }
-
- AVI_SeekAbsolute( p_input, i_posmax );
- /* the first chunk we will see is :
- * the last chunk that we have already seen for broken index
- * the first ck for other with good index */
- for( ; ; ) /* infinite parsing until the ck we want */
- {
- riffchunk_t *p_ck;
- int i_type;
-
- /* Get the actual chunk in the stream */
- if( !(p_ck = RIFF_ReadChunk( p_input )) )
- {
- return( 0 );
- }
-// msg_Dbg( p_input, "ck: %4.4s len %d", &p_ck->i_id, p_ck->i_size );
- /* special case for LIST-rec chunk */
- if( ( p_ck->i_id == FOURCC_LIST )&&( p_ck->i_type == FOURCC_rec ) )
- {
- RIFF_DescendChunk( p_input );
- RIFF_DeleteChunk( p_input, p_ck );
- continue;
- }
- AVI_ParseStreamHeader( p_ck->i_id, &i, &i_type );
- /* littles checks but not too much if you want to read all file */
- if( i >= p_avi_demux->i_streams )
- /* (AVI_GetESTypeFromTwoCC(i_type) != p_info_i->i_cat) perhaps add it*/
-
- {
- RIFF_DeleteChunk( p_input, p_ck );
- if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
- {
- return( 0 );
+ break;
}
}
else
{
- int i_size;
-
- /* have we found a new entry (not present in index)? */
- if( ( !p_info_i->i_idxnb )
- ||(p_info_i->p_index[p_info_i->i_idxnb-1].i_pos < p_ck->i_pos))
+ /* add this chunk to the index */
+ AVIIndexEntry_t index;
+
+ index.i_id = avi_pk.i_fourcc;
+ index.i_flags =
+ AVI_GetKeyFlag(p_avi->pp_info[avi_pk.i_stream]->i_codec,
+ avi_pk.i_peek);
+ index.i_pos = avi_pk.i_pos;
+ index.i_length = avi_pk.i_size;
+ AVI_IndexAddEntry( p_avi, avi_pk.i_stream, &index );
+
+ if( avi_pk.i_stream == i_stream )
{
- AVIIndexEntry_t index;
-
- index.i_id = p_ck->i_id;
- index.i_flags = AVI_GetKeyFlag( p_info_i->p_es->i_fourcc,
- (u8*)&p_ck->i_8bytes);
- index.i_pos = p_ck->i_pos;
- index.i_length = p_ck->i_size;
- __AVI_AddEntryIndex( p_info_i, &index );
+ return VLC_SUCCESS;
}
-
- /* TODO check if p_other is full and then if is possible
- go directly to the good chunk */
- if( ( p_info_i == p_other )
- &&( !AVI_PESBuffer_IsFull( p_other ) )
- &&( ( !p_other->p_pes_last )||
- ( p_other->p_pes_last->p_pes->i_pes_size !=
- BUFFER_MAXSPESSIZE ) ) )
- {
- int i_ck = p_other->p_pes_last ?
- p_other->p_pes_last->i_posc + 1 : p_other->i_idxposc;
- i_size = __AVI_ChooseSize( p_ck->i_size,
- p_other->p_index[i_ck].i_length);
-
- if( p_other->p_index[i_ck].i_pos == p_ck->i_pos )
- {
- if( !__AVI_GetAndPutChunkInBuffer( p_input, p_other,
- i_size, i_ck ) )
- {
- RIFF_DeleteChunk( p_input, p_ck );
- return( 0 );
- }
- }
- else
- {
- if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
- {
- RIFF_DeleteChunk( p_input, p_ck );
-
- return( 0 );
- }
-
- }
-
- RIFF_DeleteChunk( p_input, p_ck );
- }
- else
- if( ( p_info_i == p_info)
- &&( p_info->i_idxposc < p_info->i_idxnb ) )
- {
- /* the first ck_info is ok otherwise it should be
- loaded without parsing */
- i_size = __AVI_ChooseSize( p_ck->i_size,
- p_info->p_index[p_info->i_idxposc].i_length);
-
-
- RIFF_DeleteChunk( p_input, p_ck );
-
- return( b_load ? __AVI_GetAndPutChunkInBuffer( p_input,
- p_info,
- i_size,
- p_info->i_idxposc ) : 1 );
- }
- else
+ if( AVI_PacketNext( p_input ) )
{
- /* skip it */
- RIFF_DeleteChunk( p_input, p_ck );
- if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
- {
- return( 0 );
- }
+ return VLC_EGENERIC;
}
}
-
-
}
-
-#undef p_info_i
}
+
/* be sure that i_ck will be a valid index entry */
static int AVI_SetStreamChunk( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- int i_ck )
+ unsigned int i_stream,
+ unsigned int i_ck )
{
+ demux_sys_t *p_avi = p_input->p_demux_data;
+ avi_stream_t *p_stream = p_avi->pp_info[i_stream];
- p_info->i_idxposc = i_ck;
- p_info->i_idxposb = 0;
+ p_stream->i_idxposc = i_ck;
+ p_stream->i_idxposb = 0;
- if( i_ck < p_info->i_idxnb )
- {
- return( 1 );
- }
- else
+ if( i_ck >= p_stream->i_idxnb )
{
- p_info->i_idxposc = p_info->i_idxnb - 1;
+ p_stream->i_idxposc = p_stream->i_idxnb - 1;
do
{
- p_info->i_idxposc++;
- if( !__AVI_GetChunk( p_input, p_info, 0 ) )
+ p_stream->i_idxposc++;
+ if( AVI_StreamChunkFind( p_input, i_stream ) )
{
- return( 0 );
+ return VLC_EGENERIC;
}
- } while( p_info->i_idxposc < i_ck );
- return( 1 );
+ } while( p_stream->i_idxposc < i_ck );
}
+
+ return VLC_SUCCESS;
}
/* XXX FIXME up to now, we assume that all chunk are one after one */
-static int AVI_SetStreamBytes( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
+static int AVI_SetStreamBytes( input_thread_t *p_input,
+ unsigned int i_stream,
off_t i_byte )
{
- if( ( p_info->i_idxnb > 0 )
- &&( i_byte < p_info->p_index[p_info->i_idxnb - 1].i_lengthtotal +
- p_info->p_index[p_info->i_idxnb - 1].i_length ) )
+ demux_sys_t *p_avi = p_input->p_demux_data;
+ avi_stream_t *p_stream = p_avi->pp_info[i_stream];
+
+ if( ( p_stream->i_idxnb > 0 )
+ &&( i_byte < p_stream->p_index[p_stream->i_idxnb - 1].i_lengthtotal +
+ p_stream->p_index[p_stream->i_idxnb - 1].i_length ) )
{
/* index is valid to find the ck */
/* uses dichototmie to be fast enougth */
- int i_idxposc = __MIN( p_info->i_idxposc, p_info->i_idxnb - 1 );
- int i_idxmax = p_info->i_idxnb;
+ int i_idxposc = __MIN( p_stream->i_idxposc, p_stream->i_idxnb - 1 );
+ int i_idxmax = p_stream->i_idxnb;
int i_idxmin = 0;
for( ;; )
{
- if( p_info->p_index[i_idxposc].i_lengthtotal > i_byte )
+ if( p_stream->p_index[i_idxposc].i_lengthtotal > i_byte )
{
i_idxmax = i_idxposc ;
i_idxposc = ( i_idxmin + i_idxposc ) / 2 ;
}
else
{
- if( p_info->p_index[i_idxposc].i_lengthtotal +
- p_info->p_index[i_idxposc].i_length <= i_byte)
+ if( p_stream->p_index[i_idxposc].i_lengthtotal +
+ p_stream->p_index[i_idxposc].i_length <= i_byte)
{
i_idxmin = i_idxposc ;
i_idxposc = (i_idxmax + i_idxposc ) / 2 ;
}
else
{
- p_info->i_idxposc = i_idxposc;
- p_info->i_idxposb = i_byte -
- p_info->p_index[i_idxposc].i_lengthtotal;
- return( 1 );
+ p_stream->i_idxposc = i_idxposc;
+ p_stream->i_idxposb = i_byte -
+ p_stream->p_index[i_idxposc].i_lengthtotal;
+ return VLC_SUCCESS;
}
}
}
-
+
}
else
{
- p_info->i_idxposc = p_info->i_idxnb - 1;
- p_info->i_idxposb = 0;
+ p_stream->i_idxposc = p_stream->i_idxnb - 1;
+ p_stream->i_idxposb = 0;
do
{
- p_info->i_idxposc++;
- if( !__AVI_GetChunk( p_input, p_info, 0 ) )
+ p_stream->i_idxposc++;
+ if( AVI_StreamChunkFind( p_input, i_stream ) )
{
- return( 0 );
+ return VLC_EGENERIC;
}
- } while( p_info->p_index[p_info->i_idxposc].i_lengthtotal +
- p_info->p_index[p_info->i_idxposc].i_length <= i_byte );
- p_info->i_idxposb = i_byte -
- p_info->p_index[p_info->i_idxposc].i_lengthtotal;
- return( 1 );
+ } while( p_stream->p_index[p_stream->i_idxposc].i_lengthtotal +
+ p_stream->p_index[p_stream->i_idxposc].i_length <= i_byte );
+
+ p_stream->i_idxposb = i_byte -
+ p_stream->p_index[p_stream->i_idxposc].i_lengthtotal;
+ return VLC_SUCCESS;
}
}
-static pes_packet_t *AVI_ReadStreamChunkInPES( input_thread_t *p_input,
- AVIStreamInfo_t *p_info )
-
+static int AVI_StreamSeek( input_thread_t *p_input,
+ demux_sys_t *p_avi,
+ int i_stream,
+ mtime_t i_date )
{
- if( p_info->i_idxposc > p_info->i_idxnb )
- {
- return( NULL );
- }
+#define p_stream p_avi->pp_info[i_stream]
+ mtime_t i_oldpts;
+
+ i_oldpts = AVI_GetPTS( p_stream );
- /* we want chunk (p_info->i_idxposc,0) */
- p_info->i_idxposb = 0;
- if( !__AVI_GetChunk( p_input, p_info, 1) )
+ if( !p_stream->i_samplesize )
{
- msg_Err( p_input, "Got one chunk : failed" );
- return( NULL );
- }
- p_info->i_idxposc++;
- return( AVI_PESBuffer_Get( p_info ) );
-}
+ if( AVI_SetStreamChunk( p_input,
+ i_stream,
+ AVI_PTSToChunk( p_stream, i_date ) ) )
+ {
+ return VLC_EGENERIC;
+ }
-static pes_packet_t *AVI_ReadStreamBytesInPES( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- int i_byte )
-{
- pes_packet_t *p_pes;
- data_packet_t *p_data;
- int i_count = 0;
- int i_read;
+ /* search key frame */
+ msg_Dbg( p_input,
+ "old:"I64Fd" %s new "I64Fd,
+ i_oldpts,
+ i_oldpts > i_date ? ">" : "<",
+ i_date );
-
- if( !( p_pes = input_NewPES( p_input->p_method_data ) ) )
- {
- return( NULL );
- }
- if( !( p_data = input_NewPacket( p_input->p_method_data, i_byte ) ) )
- {
- input_DeletePES( p_input->p_method_data, p_pes );
- return( NULL );
- }
-
- p_pes->p_first =
- p_pes->p_last = p_data;
- p_pes->i_nb_data = 1;
- p_pes->i_pes_size = i_byte;
-
- while( i_byte > 0 )
- {
- if( !__AVI_GetChunk( p_input, p_info, 1) )
- {
- msg_Err( p_input, "Got one chunk : failed" );
-
- input_DeletePES( p_input->p_method_data, p_pes );
- return( NULL );
- }
-
- i_read = __MIN( p_info->p_pes_first->p_pes->i_pes_size -
- ( p_info->i_idxposb - p_info->p_pes_first->i_posb ),
- i_byte);
- /* FIXME FIXME FIXME follow all data packet */
- memcpy( p_data->p_payload_start + i_count,
- p_info->p_pes_first->p_pes->p_first->p_payload_start +
- p_info->i_idxposb - p_info->p_pes_first->i_posb,
- i_read );
-
- AVI_PESBuffer_Drop( p_input->p_method_data, p_info );
- i_byte -= i_read;
- i_count += i_read;
-
- p_info->i_idxposb += i_read;
- if( p_info->p_index[p_info->i_idxposc].i_length <= p_info->i_idxposb )
+ if( i_date < i_oldpts )
{
- p_info->i_idxposb -= p_info->p_index[p_info->i_idxposc].i_length;
- p_info->i_idxposc++;
- }
- }
- return( p_pes );
-}
-
-
-
-/* try to realign after a seek */
-static int AVI_ReAlign( input_thread_t *p_input,
- AVIStreamInfo_t *p_info )
-{
- int i;
- off_t i_pos;
- int b_after = 0;
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
-
-
- for( i = 0; i < p_avi_demux->i_streams; i++ )
- {
- AVI_PESBuffer_Flush( p_input->p_method_data, p_avi_demux->pp_info[i] );
- }
- /* Reinit clock
- TODO use input_ClockInit instead but need to be exported
- p_input->stream.p_selected_program->last_cr = 0;
- p_input->stream.p_selected_program->last_syscr = 0;
- p_input->stream.p_selected_program->cr_ref = 0;
- p_input->stream.p_selected_program->sysdate_ref = 0;
- p_input->stream.p_selected_program->delta_cr = 0;
- p_input->stream.p_selected_program->c_average_count = 0; */
-
- i_pos = AVI_TellAbsolute( p_input );
-
- p_info->i_idxposc--; /* in fact p_info->i_idxposc is for ck to be read */
-
-
- if( ( p_info->i_idxposc <= 0)
- ||( i_pos <= p_info->p_index[0].i_pos ) )
- {
- /* before beginning of stream */
- return( p_info->header.i_samplesize ?
- AVI_SetStreamBytes( p_input, p_info, 0 ) :
- AVI_SetStreamChunk( p_input, p_info, 0 ) );
- }
-
- b_after = ( i_pos >= p_info->p_index[p_info->i_idxposc].i_pos );
- /* now find in what chunk we are */
- while( ( i_pos < p_info->p_index[p_info->i_idxposc].i_pos )
- &&( p_info->i_idxposc > 0 ) )
- {
- /* search before i_idxposc */
-
- if( !AVI_SetStreamChunk( p_input, p_info, p_info->i_idxposc - 1 ) )
- {
- return( 0 );
- }
- }
-
- while( i_pos >= p_info->p_index[p_info->i_idxposc].i_pos +
- p_info->p_index[p_info->i_idxposc].i_length + 8 )
- {
- /* search after i_idxposc */
-
- if( !AVI_SetStreamChunk( p_input, p_info, p_info->i_idxposc + 1 ) )
- {
- return( 0 );
- }
- }
-
- /* search nearest key frame, only for video */
- if( p_info->i_cat == VIDEO_ES )
- {
- if( b_after )
- {
- while(!(p_info->p_index[p_info->i_idxposc].i_flags&AVIIF_KEYFRAME) )
+ while( p_stream->i_idxposc > 0 &&
+ !( p_stream->p_index[p_stream->i_idxposc].i_flags &
+ AVIIF_KEYFRAME ) )
{
- if( !AVI_SetStreamChunk( p_input, p_info,
- p_info->i_idxposc + 1 ) )
+ if( AVI_SetStreamChunk( p_input,
+ i_stream,
+ p_stream->i_idxposc - 1 ) )
{
- return( 0 );
+ return VLC_EGENERIC;
}
}
}
else
- {
- while( ( p_info->i_idxposc > 0 ) &&
- (!(p_info->p_index[p_info->i_idxposc].i_flags&AVIIF_KEYFRAME)) )
+ {
+ while( p_stream->i_idxposc < p_stream->i_idxnb &&
+ !( p_stream->p_index[p_stream->i_idxposc].i_flags &
+ AVIIF_KEYFRAME ) )
{
-
- if( !AVI_SetStreamChunk( p_input, p_info,
- p_info->i_idxposc - 1 ) )
+ if( AVI_SetStreamChunk( p_input,
+ i_stream,
+ p_stream->i_idxposc + 1 ) )
{
-
- return( 0 );
+ return VLC_EGENERIC;
}
}
}
- }
- return( 1 );
-}
-
-/* make difference between audio and video pts as little as possible */
-static void AVI_SynchroReInit( input_thread_t *p_input )
-{
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
-
-#define p_info_video p_avi_demux->p_info_video
-#define p_info_audio p_avi_demux->p_info_audio
- if( ( !p_info_audio )||( !p_info_video ) )
- {
- return;
- }
- /* now resynch audio video video */
- /*don't care of AVIF_KEYFRAME */
- if( !p_info_audio->header.i_samplesize )
- {
- AVI_SetStreamChunk( p_input,
- p_info_audio,
- AVI_PTSToChunk( p_info_audio,
- AVI_GetPTS( p_info_video ) ) );
}
else
{
- AVI_SetStreamBytes( p_input,
- p_info_audio,
- AVI_PTSToByte( p_info_audio,
- AVI_GetPTS( p_info_video ) ) );
+ if( AVI_SetStreamBytes( p_input,
+ i_stream,
+ AVI_PTSToByte( p_stream, i_date ) ) )
+ {
+ return VLC_EGENERIC;
+ }
}
-#undef p_info_video
-#undef p_info_audio
-}
+ return VLC_SUCCESS;
+#undef p_stream
+}
/*****************************************************************************
- * AVI_GetFrameInPES : get dpts length(µs) in pes from stream
+ * AVISeek: goto to i_date or i_percent
*****************************************************************************
- * Handle multiple pes, and set pts to the good value
+ * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
-static pes_packet_t *AVI_GetFrameInPES( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- mtime_t i_dpts)
+static int AVISeek ( input_thread_t *p_input,
+ mtime_t i_date, int i_percent )
{
- int i;
- pes_packet_t *p_pes = NULL;
- pes_packet_t *p_pes_tmp = NULL;
- pes_packet_t *p_pes_first = NULL;
- mtime_t i_pts;
- if( i_dpts < 1000 )
- {
- return( NULL ) ;
- }
+ demux_sys_t *p_avi = p_input->p_demux_data;
+ unsigned int i_stream;
+ msg_Dbg( p_input,
+ "seek requested: "I64Fd" secondes %d%%",
+ i_date / 1000000,
+ i_percent );
- if( !p_info->header.i_samplesize )
+ if( p_avi->b_seekable )
{
- int i_chunk = __MAX( AVI_PTSToChunk( p_info, i_dpts), 1 );
- p_pes_first = NULL;
- for( i = 0; i < i_chunk; i++ )
+ if( !p_avi->i_length )
{
- /* get pts while is valid */
- i_pts = AVI_GetPTS( p_info );
-
- p_pes_tmp = AVI_ReadStreamChunkInPES( p_input, p_info );
+ avi_stream_t *p_stream;
+ uint64_t i_pos;
- if( !p_pes_tmp )
+ /* use i_percent to create a true i_date */
+ msg_Warn( p_input,
+ "mmh, seeking without index at %d%%"
+ " work only for interleaved file", i_percent );
+
+ if( i_percent >= 100 )
{
- return( p_pes_first );
+ msg_Warn( p_input, "cannot seek so far !" );
+ return( -1 );
}
- p_pes_tmp->i_pts = i_pts;
- if( !p_pes_first )
+ i_percent = __MAX( i_percent, 0 );
+
+ /* try to find chunk that is at i_percent or the file */
+ i_pos = __MAX( i_percent *
+ p_input->stream.p_selected_area->i_size / 100,
+ p_avi->i_movi_begin );
+ /* search first selected stream */
+ for( i_stream = 0, p_stream = NULL;
+ i_stream < p_avi->i_streams; i_stream++ )
{
- p_pes_first = p_pes_tmp;
+ p_stream = p_avi->pp_info[i_stream];
+ if( p_stream->b_activated )
+ {
+ break;
+ }
}
- else
+ if( !p_stream || !p_stream->b_activated )
+ {
+ msg_Warn( p_input, "cannot find any selected stream" );
+ return( -1 );
+ }
+
+ /* be sure that the index exit */
+ if( AVI_SetStreamChunk( p_input,
+ i_stream,
+ 0 ) )
{
- p_pes->p_next = p_pes_tmp;
+ msg_Warn( p_input, "cannot seek" );
+ return( -1 );
}
- p_pes = p_pes_tmp;
+
+ while( i_pos >= p_stream->p_index[p_stream->i_idxposc].i_pos +
+ p_stream->p_index[p_stream->i_idxposc].i_length + 8 )
+ {
+ /* search after i_idxposc */
+ if( AVI_SetStreamChunk( p_input,
+ i_stream, p_stream->i_idxposc + 1 ) )
+ {
+ msg_Warn( p_input, "cannot seek" );
+ return( -1 );
+ }
+ }
+ i_date = AVI_GetPTS( p_stream );
+ /* TODO better support for i_samplesize != 0 */
+ msg_Dbg( p_input, "estimate date "I64Fd, i_date );
}
- return( p_pes_first );
- }
- else
- {
- /* stream is byte based */
- int i_byte = AVI_PTSToByte( p_info, i_dpts);
- if( i_byte < 50 ) /* to avoid some problem with audio */
+
+#define p_stream p_avi->pp_info[i_stream]
+ p_avi->i_time = 0;
+ /* seek for chunk based streams */
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
{
- return( NULL );
+ if( p_stream->b_activated && !p_stream->i_samplesize )
+// if( p_stream->b_activated )
+ {
+ AVI_StreamSeek( p_input, p_avi, i_stream, i_date );
+ p_avi->i_time = __MAX( AVI_GetPTS( p_stream ),
+ p_avi->i_time );
+ }
}
- i_pts = AVI_GetPTS( p_info ); /* ok even with broken index */
- p_pes = AVI_ReadStreamBytesInPES( p_input, p_info, i_byte);
-
- if( p_pes )
+#if 1
+ if( p_avi->i_time )
+ {
+ i_date = p_avi->i_time;
+ }
+ /* seek for bytes based streams */
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
+ {
+ if( p_stream->b_activated && p_stream->i_samplesize )
+ {
+ AVI_StreamSeek( p_input, p_avi, i_stream, i_date );
+// p_avi->i_time = __MAX( AVI_GetPTS( p_stream ), p_avi->i_time );
+ }
+ }
+ msg_Dbg( p_input, "seek: "I64Fd" secondes", p_avi->i_time /1000000 );
+ /* set true movie time */
+#endif
+ if( !p_avi->i_time )
{
- p_pes->i_pts = i_pts;
+ p_avi->i_time = i_date;
}
- return( p_pes );
+#undef p_stream
+ return( 1 );
+ }
+ else
+ {
+ msg_Err( p_input, "shouldn't yet be executed" );
+ return( -1 );
}
}
-/*****************************************************************************
- * AVI_DecodePES : send a pes to decoder
- *****************************************************************************
- * Handle multiple pes, and update pts to the good value
- *****************************************************************************/
-static inline void AVI_DecodePES( input_thread_t *p_input,
- AVIStreamInfo_t *p_info,
- pes_packet_t *p_pes )
+
+#if 0
+static pes_packet_t *PES_split( input_thread_t *p_input, avi_stream_t *p_stream, pes_packet_t *p_pes )
{
- pes_packet_t *p_pes_next;
- /* input_decode want only one pes, but AVI_GetFrameInPES give
- multiple pes so send one by one */
- while( p_pes )
- {
- p_pes_next = p_pes->p_next;
- p_pes->p_next = NULL;
- p_pes->i_pts = input_ClockGetTS( p_input,
- p_input->stream.p_selected_program,
- p_pes->i_pts * 9/100);
- input_DecodePES( p_info->p_es->p_decoder_fifo, p_pes );
- p_pes = p_pes_next;
- }
-
+ pes_packet_t *p_pes2;
+ data_packet_t *p_data;
+ int i_nb_data;
+
+ if( p_pes->i_nb_data < 2 )
+ {
+ return( NULL );
+ }
+ p_pes2 = input_NewPES( p_input->p_method_data );
+ p_pes2->i_pts = p_pes->i_pts;
+ p_pes2->i_dts = p_pes->i_dts;
+ p_pes2->i_nb_data = p_pes->i_nb_data/2;
+ p_pes2->i_pes_size = 0;
+ for( i_nb_data = 0, p_data = p_pes->p_first;
+ i_nb_data < p_pes2->i_nb_data;
+ i_nb_data++, p_data = p_data->p_next )
+ {
+ p_pes2->i_pes_size +=
+ p_data->p_payload_end - p_data->p_payload_start;
+ p_pes2->p_last = p_data;
+ }
+ p_pes2->p_first = p_pes->p_first;
+ p_pes2->p_last->p_next = NULL;
+
+ p_pes->p_first = p_data;
+ p_pes->i_pes_size -= p_pes2->i_pes_size;
+ p_pes->i_nb_data -= p_pes2->i_nb_data;
+// p_pes->i_pts += AVI_GetDPTS( p_stream, p_pes2->i_pes_size );
+// p_pes->i_dts += AVI_GetDPTS( p_stream, p_pes2->i_pes_size );
+ p_pes->i_pts = 0;
+ p_pes->i_dts = 0;
+ return( p_pes2 );
}
+#endif
/*****************************************************************************
* AVIDemux_Seekable: reads and demuxes data packets for stream seekable
*****************************************************************************
- * Called by AVIDemux, that make common work
+ * AVIDemux: reads and demuxes data packets
+ *****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
-static int AVIDemux_Seekable( input_thread_t *p_input,
- AVIStreamInfo_t *p_info_master,
- AVIStreamInfo_t *p_info_slave )
+typedef struct avi_stream_toread_s
{
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
+ vlc_bool_t b_ok;
- pes_packet_t *p_pes_master;
- pes_packet_t *p_pes_slave;
+ int i_toread;
- /* check for signal from interface */
- if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
- {
- /* we can supposed that is a seek */
- /* first wait for empty buffer, arbitrary time */
- msleep( DEFAULT_PTS_DELAY );
- /* then try to realign in stream */
- if( !AVI_ReAlign( p_input, p_info_master ) )
+ off_t i_posf; // where we will read :
+ // if i_idxposb == 0 : begining of chunk (+8 to acces data)
+ // else : point on data directly
+} avi_stream_toread_t;
+
+static int AVIDemux_Seekable( input_thread_t *p_input )
+{
+ unsigned int i_stream_count;
+ unsigned int i_stream;
+ vlc_bool_t b_stream;
+ vlc_bool_t b_play_audio;
+ vlc_bool_t b_video; /* is there some video track selected */
+ // cannot be more than 100 stream (dcXX or wbXX)
+ avi_stream_toread_t toread[100];
+
+ demux_sys_t *p_avi = p_input->p_demux_data;
+
+
+ /* detect new selected/unselected streams */
+ for( i_stream = 0,i_stream_count= 0, b_video = VLC_FALSE;
+ i_stream < p_avi->i_streams; i_stream++ )
+ {
+#define p_stream p_avi->pp_info[i_stream]
+ if( p_stream->p_es )
{
- return( 0 ); /* assume EOF */
+ if( p_stream->p_es->p_decoder_fifo &&
+ !p_stream->b_activated )
+ {
+ AVI_StreamStart( p_input, p_avi, i_stream );
+ }
+ else
+ if( !p_stream->p_es->p_decoder_fifo &&
+ p_stream->b_activated )
+ {
+ AVI_StreamStop( p_input, p_avi, i_stream );
+ }
}
- AVI_SynchroReInit( p_input );
+ if( p_stream->b_activated )
+ {
+ i_stream_count++;
+ if( p_stream->i_cat == VIDEO_ES )
+ {
+ b_video = VLC_TRUE;
+ }
+ }
+#undef p_stream
}
- /* take care of newly selected audio ES */
- if( p_info_master->b_selected )
- {
- p_info_master->b_selected = 0;
- AVI_SynchroReInit( p_input );
- }
- if( ( p_info_slave )&&( p_info_slave->b_selected ) )
+ if( i_stream_count <= 0 )
{
- p_info_slave->b_selected = 0;
- AVI_SynchroReInit( p_input );
+ msg_Warn( p_input, "no track selected, exiting..." );
+ return( 0 );
}
- /* wait for the good time */
- input_ClockManageRef( p_input,
- p_input->stream.p_selected_program,
- p_avi_demux->i_pcr /*- DEFAULT_PTS_DELAY / 2 */);
- /* calculate pcr, time when we must read the next data */
- /* 9/100 kludge ->need to convert to 1/1000000 clock unit to 1/90000 */
- if( p_info_slave )
- {
- p_avi_demux->i_pcr = __MIN( AVI_GetPTS( p_info_master ),
- AVI_GetPTS( p_info_slave ) ) * 9/100;
- }
- else
+ if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
{
- p_avi_demux->i_pcr = AVI_GetPTS( p_info_master ) * 9/100;
- }
+ mtime_t i_date;
+ int i_percent;
+ /* first wait for empty buffer, arbitrary time FIXME */
+ //msleep( DEFAULT_PTS_DELAY );
- /* get video and audio frames */
- p_pes_master = AVI_GetFrameInPES( p_input,
- p_info_master,
- 100000 ); /* 100 ms */
- AVI_DecodePES( p_input,
- p_info_master,
- p_pes_master);
+ i_date = (mtime_t)1000000 *
+ (mtime_t)p_avi->i_length *
+ (mtime_t)AVI_TellAbsolute( p_input ) /
+ (mtime_t)p_input->stream.p_selected_area->i_size;
+ i_percent = 100 * AVI_TellAbsolute( p_input ) /
+ p_input->stream.p_selected_area->i_size;
+// input_ClockInit( p_input->stream.p_selected_program );
+ AVISeek( p_input, i_date, i_percent);
- if( p_info_slave )
- {
- p_pes_slave = AVI_GetFrameInPES( p_input,
- p_info_slave,
- AVI_GetPTS( p_info_master ) -
- AVI_GetPTS( p_info_slave) );
- AVI_DecodePES( p_input,
- p_info_slave,
- p_pes_slave );
+#ifdef __AVI_SUBTITLE__
+ if( p_avi->p_sub )
+ {
+ subtitle_Seek( p_avi->p_sub, p_avi->i_time );
+ }
+#endif
}
- /* at the end ? */
- return( p_pes_master ? 1 : 0 );
+ /* wait for the good time */
-}
+ p_avi->i_pcr = p_avi->i_time * 9 / 100;
-/*****************************************************************************
- * AVIDemux_NotSeekable: reads and demuxes data packets for stream seekable
- *****************************************************************************
- * Called by AVIDemux, that makes common work
- * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
- *****************************************************************************/
+ input_ClockManageRef( p_input,
+ p_input->stream.p_selected_program,
+ p_avi->i_pcr );
-/* 0 if can be load/updated, 1 if skip, 2 if descend into, 3 if exit, 4 if error and need recover */
-static int __AVIDemux_ChunkAction( int i_streams_max,
- riffchunk_t *p_ck )
-{
- int i_stream;
- int i_type;
- AVI_ParseStreamHeader( p_ck->i_id, &i_stream, &i_type );
- if( i_stream < i_streams_max )
+ p_avi->i_time += 25*1000; /* read 25ms */
+
+#ifdef __AVI_SUBTITLE__
+ if( p_avi->p_sub )
{
- return( 0 ); /* read and/or update stream info */
+ subtitle_Demux( p_avi->p_sub, p_avi->i_time );
}
+#endif
- if( i_stream <= 99 )
+ /* *** send audio data to decoder if rate == DEFAULT_RATE or no video *** */
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ if( p_input->stream.control.i_rate == DEFAULT_RATE || !b_video )
{
- /* should not happen but ... */
- return( 1 );
+ b_play_audio = VLC_TRUE;
}
-
- /* now we know that it's not a stream */
-
- switch( p_ck->i_id )
+ else
{
- case( FOURCC_JUNK ):
- return( 1 );
- case( FOURCC_idx1 ):
- return( 3 );
- case( FOURCC_LIST ):
- if( p_ck->i_type == FOURCC_rec )
- {
- return( 2 );
- }
- else
- {
- return( 1 );
- }
- default:
- break;
- }
- /* test for ix?? */
+ b_play_audio = VLC_FALSE;
+ }
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
- if( ( p_ck->i_id & 0xFFFF ) == VLC_TWOCC( 'i','x' ) )
+ /* init toread */
+ for( i_stream = 0; i_stream < p_avi->i_streams; i_stream++ )
{
- return( 1 );
- }
+#define p_stream p_avi->pp_info[i_stream]
+ mtime_t i_dpts;
- return( 4 );
-}
+ toread[i_stream].b_ok = p_stream->b_activated;
+ if( p_stream->i_idxposc < p_stream->i_idxnb )
+ {
+ toread[i_stream].i_posf =
+ p_stream->p_index[p_stream->i_idxposc].i_pos;
+ if( p_stream->i_idxposb > 0 )
+ {
+ toread[i_stream].i_posf += 8 + p_stream->i_idxposb;
+ }
+ }
+ else
+ {
+ toread[i_stream].i_posf = -1;
+ }
-static int AVI_NotSeekableRecover( input_thread_t *p_input )
-{
- byte_t *p_id;
- u32 i_id;
- int i_number, i_type;
- data_packet_t *p_pack;
+ i_dpts = p_avi->i_time - AVI_GetPTS( p_stream );
- for( ; ; )
- {
- if( input_Peek( p_input, &p_id, 4 ) < 4 )
+ if( p_stream->i_samplesize )
{
- return( 0 ); /* Failed */
+ toread[i_stream].i_toread = AVI_PTSToByte( p_stream,
+ __ABS( i_dpts ) );
}
- i_id = GetDWLE( p_id );
- switch( i_id )
+ else
{
- case( FOURCC_idx1 ):
- case( FOURCC_JUNK ):
- case( FOURCC_LIST ):
- return( 1 );
- default:
- AVI_ParseStreamHeader( i_id, &i_number, &i_type );
- if( i_number <= 99 )
- {
- switch( i_type )
- {
- case( TWOCC_wb ):
- case( TWOCC_db ):
- case( TWOCC_dc ):
- case( TWOCC_pc ):
- return( 1 );
- }
- }
- else
- {
-
- }
+ toread[i_stream].i_toread = AVI_PTSToChunk( p_stream,
+ __ABS( i_dpts ) );
}
- /* Read 1 byte VERY unoptimised */
- if( input_SplitBuffer( p_input, &p_pack, 1) < 1 )
+
+ if( i_dpts < 0 )
{
- return( 0 );
+ toread[i_stream].i_toread *= -1;
}
- input_DeletePacket( p_input->p_method_data, p_pack);
+#undef p_stream
}
-}
+ b_stream = VLC_FALSE;
-static int AVIDemux_NotSeekable( input_thread_t *p_input,
- AVIStreamInfo_t *p_info_master,
- AVIStreamInfo_t *p_info_slave )
-{
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
- int i_loop;
- int i_stream;
- int i_type;
-
- riffchunk_t *p_ck;
- pes_packet_t *p_pes;
-
-/*
- i_filepos = AVI_TellAbsolute( p_input );
- p_input->pf_seek( p_input, i_filepos );
- input_AccessReinit( p_input );
-*/
-
-#define p_info p_avi_demux->pp_info[i_stream]
-
- /* The managment is very basic, we will read packets, caclulate pts
- and send it to decoder, synchro made on video, and audio is very less
- important */
-
- /* wait the good time */
- input_ClockManageRef( p_input,
- p_input->stream.p_selected_program,
- p_avi_demux->i_pcr /*- DEFAULT_PTS_DELAY / 2 */);
- /* TODO be smart, seeing if we can wait for min( audio, video )
- or there is a too big deep */
- if( !p_info_slave )
- {
- p_avi_demux->i_pcr = AVI_GetPTS( p_info_master ) * 9/100;
- }
- else
- {
- p_avi_demux->i_pcr = __MIN( AVI_GetPTS( p_info_master ),
- AVI_GetPTS( p_info_slave ) ) * 9/100;
- p_avi_demux->i_pcr = AVI_GetPTS( p_info_master ) * 9/100;
- }
-
- for( i_loop = 0; i_loop < 10; i_loop++ )
+ for( ;; )
{
- int b_load =0;
-
- /* first find a ck for master or slave */
- do
+#define p_stream p_avi->pp_info[i_stream]
+ vlc_bool_t b_done;
+ pes_packet_t *p_pes;
+ off_t i_pos;
+ unsigned int i;
+ size_t i_size;
+
+ /* search for first chunk to be read */
+ for( i = 0, b_done = VLC_TRUE, i_pos = -1; i < p_avi->i_streams; i++ )
{
+ if( !toread[i].b_ok ||
+ AVI_GetDPTS( p_avi->pp_info[i],
+ toread[i].i_toread ) <= -25 * 1000 )
+ {
+ continue;
+ }
- if( !(p_ck = RIFF_ReadChunk( p_input ) ) )
+ if( toread[i].i_toread > 0 )
{
- msg_Err( p_input, "Badd" );
- return( 0 ); /* assume EOF */
+ b_done = VLC_FALSE; // not yet finished
}
- //msg_Err( p_input,"Looking ck: %4.4s %d",&p_ck->i_id, p_ck->i_size );
- switch( __AVIDemux_ChunkAction( p_avi_demux->i_streams, p_ck ) )
+ if( toread[i].i_posf > 0 )
{
- case( 0 ): /* load it if possible */
- b_load = 1;
- break;
- case( 1 ): /* skip it */
- RIFF_DeleteChunk( p_input, p_ck );
- if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
+ if( i_pos == -1 || i_pos > toread[i_stream].i_posf )
+ {
+ i_stream = i;
+ i_pos = toread[i].i_posf;
+ }
+ }
+ }
+
+ if( b_done )
+ {
+// return( b_stream ? 1 : 0 );
+ return( 1 );
+ }
+
+ if( i_pos == -1 )
+ {
+ /* no valid index, we will parse directly the stream
+ * in case we fail we will disable all finished stream */
+ if( p_avi->i_movi_lastchunk_pos >= p_avi->i_movi_begin )
+ {
+ AVI_SeekAbsolute( p_input, p_avi->i_movi_lastchunk_pos );
+ if( AVI_PacketNext( p_input ) )
+ {
+ return( AVI_StreamStopFinishedStreams( p_input, p_avi ) ? 0 : 1 );
+ }
+ }
+ else
+ {
+ AVI_SeekAbsolute( p_input, p_avi->i_movi_begin );
+ }
+
+ for( ;; )
+ {
+ avi_packet_t avi_pk;
+
+ if( AVI_PacketGetHeader( p_input, &avi_pk ) )
+ {
+ msg_Warn( p_input,
+ "cannot get packet header, track disabled" );
+ return( AVI_StreamStopFinishedStreams( p_input, p_avi ) ? 0 : 1 );
+ }
+ if( avi_pk.i_stream >= p_avi->i_streams ||
+ ( avi_pk.i_cat != AUDIO_ES && avi_pk.i_cat != VIDEO_ES ) )
+ {
+ switch( avi_pk.i_fourcc )
{
- return( 0 );
+ case AVIFOURCC_LIST:
+ AVI_SkipBytes( p_input, 12 );
+ break;
+ default:
+ if( AVI_PacketNext( p_input ) )
+ {
+ msg_Warn( p_input,
+ "cannot skip packet, track disabled" );
+ return( AVI_StreamStopFinishedStreams( p_input, p_avi ) ? 0 : 1 );
+ }
+ break;
}
- b_load = 0;
- break;
- case( 2 ): /* descend into */
- RIFF_DeleteChunk( p_input, p_ck );
- RIFF_DescendChunk( p_input );
- b_load = 0;
- break;
- case( 3 ): /* exit */
- RIFF_DeleteChunk( p_input, p_ck );
- return( 0 );
- case( 4 ): /* Error */
- RIFF_DeleteChunk( p_input, p_ck );
- msg_Warn( p_input, "unknown chunk id 0x%8.8x, trying to recover", p_ck->i_id );
- if( !AVI_NotSeekableRecover( p_input ) )
+ continue;
+ }
+ else
+ {
+ /* add this chunk to the index */
+ AVIIndexEntry_t index;
+
+ index.i_id = avi_pk.i_fourcc;
+ index.i_flags =
+ AVI_GetKeyFlag(p_avi->pp_info[avi_pk.i_stream]->i_codec,
+ avi_pk.i_peek);
+ index.i_pos = avi_pk.i_pos;
+ index.i_length = avi_pk.i_size;
+ AVI_IndexAddEntry( p_avi, avi_pk.i_stream, &index );
+
+ i_stream = avi_pk.i_stream;
+ /* do we will read this data ? */
+ if( AVI_GetDPTS( p_stream,
+ toread[i_stream].i_toread ) > -25 * 1000 )
{
- msg_Err( p_input, "cannot recover, dying" );
- return( -1 );
+ break;
}
else
{
- msg_Warn( p_input, "recovered sucessfully" );
+ if( AVI_PacketNext( p_input ) )
+ {
+ msg_Warn( p_input,
+ "cannot skip packet, track disabled" );
+ return( AVI_StreamStopFinishedStreams( p_input, p_avi ) ? 0 : 1 );
+ }
}
- b_load = 0;
- break;
+ }
}
- } while( !b_load );
-
- AVI_ParseStreamHeader( p_ck->i_id, &i_stream, &i_type );
- /* now check if we really have to load it */
- if( ( p_info != p_info_master )&&( p_info != p_info_slave ) )
- {
- b_load = 0;
}
else
{
- if( p_info == p_info_master )
- {
- b_load = 1;
- }
- else
+ AVI_SeekAbsolute( p_input, i_pos );
+ }
+
+ /* read thoses data */
+ if( p_stream->i_samplesize )
+ {
+ unsigned int i_toread;
+
+ if( ( i_toread = toread[i_stream].i_toread ) <= 0 )
{
- mtime_t i_dpts;
- i_dpts = AVI_GetPTS( p_info_slave ) -
- AVI_GetPTS( p_info_master );
- if( i_dpts < 0 ) {i_dpts = - i_dpts; }
- if( i_dpts < 600000 )
+ if( p_stream->i_samplesize > 1 )
{
- b_load = 1;
- }
+ i_toread = p_stream->i_samplesize;
+ }
else
{
- b_load = 0;
+ i_toread = __MAX( AVI_PTSToByte( p_stream, 20 * 1000 ), 100 );
}
}
+ i_size = __MIN( p_stream->p_index[p_stream->i_idxposc].i_length -
+ p_stream->i_idxposb,
+ i_toread );
+ }
+ else
+ {
+ i_size = p_stream->p_index[p_stream->i_idxposc].i_length;
+ }
+ if( p_stream->i_idxposb == 0 )
+ {
+ i_size += 8; // need to read and skip header
}
- /* now do we can load this chunk ? */
- if( b_load )
+ if( input_ReadInPES( p_input, &p_pes, __EVEN( i_size ) ) < 0 )
{
+ msg_Warn( p_input, "failled reading data" );
+ AVI_StreamStop( p_input, p_avi, i_stream );
+ toread[i_stream].b_ok = VLC_FALSE;
+ continue;
+ }
- if( __AVI_GetDataInPES( p_input, &p_pes, p_ck->i_size + 8, 1) != p_ck->i_size + 8)
- {
- return( 0 );
- }
+ if( i_size % 2 ) // read was padded on word boundary
+ {
+ p_pes->p_last->p_payload_end--;
+ p_pes->i_pes_size--;
+ }
+ // skip header
+ if( p_stream->i_idxposb == 0 )
+ {
p_pes->p_first->p_payload_start += 8;
p_pes->i_pes_size -= 8;
- /* get PTS */
- p_pes->i_pts = AVI_GetPTS( p_info );
- AVI_DecodePES( p_input, p_info, p_pes );
+ }
+
+ p_pes->i_pts = AVI_GetPTS( p_stream );
+
+ /* read data */
+ if( p_stream->i_samplesize )
+ {
+ if( p_stream->i_idxposb == 0 )
+ {
+ i_size -= 8;
+ }
+ toread[i_stream].i_toread -= i_size;
+ p_stream->i_idxposb += i_size;
+ if( p_stream->i_idxposb >=
+ p_stream->p_index[p_stream->i_idxposc].i_length )
+ {
+ p_stream->i_idxposb = 0;
+ p_stream->i_idxposc++;
+ }
}
else
{
+ toread[i_stream].i_toread--;
+ p_stream->i_idxposc++;
+ }
- if( RIFF_NextChunk( p_input, p_avi_demux->p_movi ) != 0 )
+ if( p_stream->i_idxposc < p_stream->i_idxnb)
+ {
+ toread[i_stream].i_posf =
+ p_stream->p_index[p_stream->i_idxposc].i_pos;
+ if( p_stream->i_idxposb > 0 )
{
- RIFF_DeleteChunk( p_input, p_ck );
- return( 0 );
+ toread[i_stream].i_posf += 8 + p_stream->i_idxposb;
}
- }
-
- /* finaly update stream information */
- if( p_info->header.i_samplesize )
+
+ }
+ else
{
- p_info->i_idxposb += p_ck->i_size;
+ toread[i_stream].i_posf = -1;
+ }
+
+ b_stream = VLC_TRUE; // at least one read succeed
+
+ if( p_stream->p_es && p_stream->p_es->p_decoder_fifo &&
+ ( b_play_audio || p_stream->i_cat != AUDIO_ES ) )
+ {
+ p_pes->i_dts =
+ p_pes->i_pts =
+ input_ClockGetTS( p_input,
+ p_input->stream.p_selected_program,
+ p_pes->i_pts * 9/100);
+
+ input_DecodePES( p_stream->p_es->p_decoder_fifo, p_pes );
}
else
{
- p_info->i_idxposc++;
+ input_DeletePES( p_input->p_method_data, p_pes );
}
-
- RIFF_DeleteChunk( p_input, p_ck );
}
-
- return( 1 );
-#undef p_info
}
+
+
/*****************************************************************************
- * AVIDemux: reads and demuxes data packets
+ * AVIDemux_UnSeekable: reads and demuxes data packets for unseekable file
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
- * TODO add support for unstreable file, just read a chunk and send it
- * to the right decoder, very easy
*****************************************************************************/
-
-static int AVIDemux( input_thread_t *p_input )
+static int AVIDemux_UnSeekable( input_thread_t *p_input )
{
- int i;
- AVIStreamInfo_t *p_info_master;
- AVIStreamInfo_t *p_info_slave;
+ demux_sys_t *p_avi = p_input->p_demux_data;
+ avi_stream_t *p_stream_master;
+ vlc_bool_t b_audio;
+ unsigned int i_stream;
+ unsigned int i_packet;
- demux_data_avi_file_t *p_avi_demux =
- (demux_data_avi_file_t*)p_input->p_demux_data;
+ /* *** send audio data to decoder only if rate == DEFAULT_RATE *** */
+ vlc_mutex_lock( &p_input->stream.stream_lock );
+ b_audio = p_input->stream.control.i_rate == DEFAULT_RATE;
+ vlc_mutex_unlock( &p_input->stream.stream_lock );
- /* search new video and audio stream selected
- if current have been unselected*/
- if( ( !p_avi_demux->p_info_video )
- || ( !p_avi_demux->p_info_video->p_es->p_decoder_fifo ) )
- {
- p_avi_demux->p_info_video = NULL;
- for( i = 0; i < p_avi_demux->i_streams; i++ )
+ input_ClockManageRef( p_input,
+ p_input->stream.p_selected_program,
+ p_avi->i_pcr );
+ /* *** find master stream for data packet skipping algo *** */
+ /* *** -> first video, if any, or first audio ES *** */
+ for( i_stream = 0, p_stream_master = NULL;
+ i_stream < p_avi->i_streams; i_stream++ )
+ {
+#define p_stream p_avi->pp_info[i_stream]
+ if( p_stream->p_es &&
+ p_stream->p_es->p_decoder_fifo )
{
- if( ( p_avi_demux->pp_info[i]->i_cat == VIDEO_ES )
- &&( p_avi_demux->pp_info[i]->p_es->p_decoder_fifo ) )
+ if( p_stream->i_cat == VIDEO_ES )
{
- p_avi_demux->p_info_video = p_avi_demux->pp_info[i];
- p_avi_demux->p_info_video->b_selected = 1;
+ p_stream_master = p_stream;
break;
}
- }
- }
- if( ( !p_avi_demux->p_info_audio )
- ||( !p_avi_demux->p_info_audio->p_es->p_decoder_fifo ) )
- {
- p_avi_demux->p_info_audio = NULL;
- for( i = 0; i < p_avi_demux->i_streams; i++ )
- {
- if( ( p_avi_demux->pp_info[i]->i_cat == AUDIO_ES )
- &&( p_avi_demux->pp_info[i]->p_es->p_decoder_fifo ) )
+ if( p_stream->i_cat == AUDIO_ES && !p_stream_master )
{
- p_avi_demux->p_info_audio = p_avi_demux->pp_info[i];
- p_avi_demux->p_info_audio->b_selected = 1;
- break;
+ p_stream_master = p_stream;
}
}
+#undef p_stream
}
- /* by default video is master for resync audio (after a seek .. ) */
- if( p_avi_demux->p_info_video )
- {
- p_info_master = p_avi_demux->p_info_video;
- p_info_slave = p_avi_demux->p_info_audio;
- }
- else
+ if( !p_stream_master )
{
- p_info_master = p_avi_demux->p_info_audio;
- p_info_slave = NULL;
- }
-
- if( !p_info_master )
- {
- msg_Err( p_input, "no stream selected" );
- return( -1 );
+ msg_Warn( p_input, "no more stream selected" );
+ return( 0 );
}
- /* manage rate, if not default: skeep audio */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- if( p_input->stream.control.i_rate != p_avi_demux->i_rate )
+ p_avi->i_pcr = AVI_GetPTS( p_stream_master ) * 9 / 100;
+
+ for( i_packet = 0; i_packet < 10; i_packet++)
{
- if( p_avi_demux->p_info_audio)
+#define p_stream p_avi->pp_info[avi_pk.i_stream]
+
+ avi_packet_t avi_pk;
+
+ if( AVI_PacketGetHeader( p_input, &avi_pk ) )
{
- p_avi_demux->p_info_audio->b_selected = 1;
+ return( 0 );
}
- p_avi_demux->i_rate = p_input->stream.control.i_rate;
- }
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- p_avi_demux->i_rate = DEFAULT_RATE;
- if( p_avi_demux->i_rate != DEFAULT_RATE )
- {
- p_info_slave = NULL;
- }
+// AVI_ParseStreamHeader( avi_pk.i_fourcc, &i_stream, &i_cat );
- if( p_avi_demux->b_seekable )
- {
- return( AVIDemux_Seekable( p_input,
- p_info_master,
- p_info_slave) );
- }
- else
- {
- return( AVIDemux_NotSeekable( p_input,
- p_info_master,
- p_info_slave ) );
- }
-}
+ if( avi_pk.i_stream >= p_avi->i_streams ||
+ ( avi_pk.i_cat != AUDIO_ES && avi_pk.i_cat != VIDEO_ES ) )
+ {
+ /* we haven't found an audio or video packet:
+ * - we have seek, found first next packet
+ * - others packets could be found, skip them
+ */
+ switch( avi_pk.i_fourcc )
+ {
+ case AVIFOURCC_JUNK:
+ case AVIFOURCC_LIST:
+ return( !AVI_PacketNext( p_input ) ? 1 : 0 );
+ case AVIFOURCC_idx1:
+ return( 0 ); // eof
+ default:
+ msg_Warn( p_input,
+ "seems to have lost position, resync" );
+ if( AVI_PacketSearch( p_input ) )
+ {
+ msg_Err( p_input, "resync failed" );
+ return( -1 );
+ }
+ }
+ }
+ else
+ {
+ /* do will send this packet to decoder ? */
+ if( ( !b_audio && avi_pk.i_cat == AUDIO_ES )||
+ !p_stream->p_es ||
+ !p_stream->p_es->p_decoder_fifo )
+ {
+ if( AVI_PacketNext( p_input ) )
+ {
+ return( 0 );
+ }
+ }
+ else
+ {
+ /* it's a selected stream, check for time */
+ if( __ABS( AVI_GetPTS( p_stream ) -
+ AVI_GetPTS( p_stream_master ) )< 600*1000 )
+ {
+ /* load it and send to decoder */
+ pes_packet_t *p_pes;
+ if( AVI_PacketRead( p_input, &avi_pk, &p_pes ) || !p_pes)
+ {
+ return( -1 );
+ }
+ p_pes->i_dts =
+ p_pes->i_pts =
+ input_ClockGetTS( p_input,
+ p_input->stream.p_selected_program,
+ AVI_GetPTS( p_stream ) * 9/100);
+ input_DecodePES( p_stream->p_es->p_decoder_fifo, p_pes );
+ }
+ else
+ {
+ if( AVI_PacketNext( p_input ) )
+ {
+ return( 0 );
+ }
+ }
+ }
+ /* *** update stream time position *** */
+ if( p_stream->i_samplesize )
+ {
+ p_stream->i_idxposb += avi_pk.i_size;
+ }
+ else
+ {
+ p_stream->i_idxposc++;
+ }
+
+ }
+
+#undef p_stream
+ }
+ return( 1 );
+}
projects / vlc / blobdiff