1 /*****************************************************************************
2 * livehttp.c: Live HTTP Streaming
3 *****************************************************************************
4 * Copyright © 2001, 2002, 2013 VLC authors and VideoLAN
5 * Copyright © 2009-2010 by Keary Griffin
7 * Authors: Keary Griffin <kearygriffin at gmail.com>
8 * Ilkka Ollakka <ileoo at videolan dot org>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <sys/types.h>
41 #include <vlc_common.h>
42 #include <vlc_plugin.h>
44 #include <vlc_block.h>
46 #include <vlc_strings.h>
47 #include <vlc_charset.h>
50 #include <vlc_gcrypt.h>
55 # define O_LARGEFILE 0
58 #define STR_ENDLIST "#EXT-X-ENDLIST\n"
60 #define MAX_RENAME_RETRIES 10
62 /*****************************************************************************
64 *****************************************************************************/
65 static int Open ( vlc_object_t * );
66 static void Close( vlc_object_t * );
68 #define SOUT_CFG_PREFIX "sout-livehttp-"
69 #define SEGLEN_TEXT N_("Segment length")
70 #define SEGLEN_LONGTEXT N_("Length of TS stream segments")
72 #define SPLITANYWHERE_TEXT N_("Split segments anywhere")
73 #define SPLITANYWHERE_LONGTEXT N_("Don't require a keyframe before splitting "\
74 "a segment. Needed for audio only.")
76 #define NUMSEGS_TEXT N_("Number of segments")
77 #define NUMSEGS_LONGTEXT N_("Number of segments to include in index")
79 #define NOCACHE_TEXT N_("Allow cache")
80 #define NOCACHE_LONGTEXT N_("Add EXT-X-ALLOW-CACHE:NO directive in playlist-file if this is disabled")
82 #define INDEX_TEXT N_("Index file")
83 #define INDEX_LONGTEXT N_("Path to the index file to create")
85 #define INDEXURL_TEXT N_("Full URL to put in index file")
86 #define INDEXURL_LONGTEXT N_("Full URL to put in index file. "\
87 "Use #'s to represent segment number")
89 #define DELSEGS_TEXT N_("Delete segments")
90 #define DELSEGS_LONGTEXT N_("Delete segments when they are no longer needed")
92 #define RATECONTROL_TEXT N_("Use muxers rate control mechanism")
94 #define KEYURI_TEXT N_("AES key URI to place in playlist")
95 #define KEYURI_LONGTEXT N_("Location from where client will retrieve the stream decryption key")
97 #define KEYFILE_TEXT N_("AES key file")
98 #define KEYFILE_LONGTEXT N_("File containing the 16 bytes encryption key")
100 #define RANDOMIV_TEXT N_("Use randomized IV for encryption")
101 #define RANDOMIV_LONGTEXT N_("Generate IV instead using segment-number as IV")
104 set_description( N_("HTTP Live streaming output") )
105 set_shortname( N_("LiveHTTP" ))
106 add_shortcut( "livehttp" )
107 set_capability( "sout access", 0 )
108 set_category( CAT_SOUT )
109 set_subcategory( SUBCAT_SOUT_ACO )
110 add_integer( SOUT_CFG_PREFIX "seglen", 10, SEGLEN_TEXT, SEGLEN_LONGTEXT, false )
111 add_integer( SOUT_CFG_PREFIX "numsegs", 0, NUMSEGS_TEXT, NUMSEGS_LONGTEXT, false )
112 add_bool( SOUT_CFG_PREFIX "splitanywhere", false,
113 SPLITANYWHERE_TEXT, SPLITANYWHERE_LONGTEXT, true )
114 add_bool( SOUT_CFG_PREFIX "delsegs", true,
115 DELSEGS_TEXT, DELSEGS_LONGTEXT, true )
116 add_bool( SOUT_CFG_PREFIX "ratecontrol", false,
117 RATECONTROL_TEXT, RATECONTROL_TEXT, true )
118 add_bool( SOUT_CFG_PREFIX "caching", false,
119 NOCACHE_TEXT, NOCACHE_LONGTEXT, true )
120 add_bool( SOUT_CFG_PREFIX "generate-iv", false,
121 RANDOMIV_TEXT, RANDOMIV_LONGTEXT, true )
122 add_string( SOUT_CFG_PREFIX "index", NULL,
123 INDEX_TEXT, INDEX_LONGTEXT, false )
124 add_string( SOUT_CFG_PREFIX "index-url", NULL,
125 INDEXURL_TEXT, INDEXURL_LONGTEXT, false )
126 add_string( SOUT_CFG_PREFIX "key-uri", NULL,
127 KEYURI_TEXT, KEYURI_TEXT, true )
128 add_loadfile( SOUT_CFG_PREFIX "key-file", NULL,
129 KEYFILE_TEXT, KEYFILE_LONGTEXT, true )
130 set_callbacks( Open, Close )
134 /*****************************************************************************
135 * Exported prototypes
136 *****************************************************************************/
137 static const char *const ppsz_sout_options[] = {
152 static ssize_t Write( sout_access_out_t *, block_t * );
153 static int Seek ( sout_access_out_t *, off_t );
154 static int Control( sout_access_out_t *, int, va_list );
156 typedef struct output_segment
162 uint32_t i_segment_number;
166 struct sout_access_out_sys_t
168 char *psz_cursegPath;
176 block_t *block_buffer;
181 bool b_splitanywhere;
185 gcry_cipher_hd_t aes_ctx;
187 uint8_t stuffing_bytes[16];
188 ssize_t stuffing_size;
189 vlc_array_t *segments_t;
192 static int CryptSetup( sout_access_out_t *p_access );
193 /*****************************************************************************
194 * Open: open the file
195 *****************************************************************************/
196 static int Open( vlc_object_t *p_this )
198 sout_access_out_t *p_access = (sout_access_out_t*)p_this;
199 sout_access_out_sys_t *p_sys;
202 config_ChainParse( p_access, SOUT_CFG_PREFIX, ppsz_sout_options, p_access->p_cfg );
204 if( !p_access->psz_path )
206 msg_Err( p_access, "no file name specified" );
210 if( unlikely( !( p_sys = malloc ( sizeof( *p_sys ) ) ) ) )
213 p_sys->i_seglen = var_GetInteger( p_access, SOUT_CFG_PREFIX "seglen" );
214 /* Try to get within asked segment length */
215 p_sys->i_seglenm = CLOCK_FREQ * p_sys->i_seglen;
216 p_sys->block_buffer = NULL;
218 p_sys->i_numsegs = var_GetInteger( p_access, SOUT_CFG_PREFIX "numsegs" );
219 p_sys->b_splitanywhere = var_GetBool( p_access, SOUT_CFG_PREFIX "splitanywhere" );
220 p_sys->b_delsegs = var_GetBool( p_access, SOUT_CFG_PREFIX "delsegs" );
221 p_sys->b_ratecontrol = var_GetBool( p_access, SOUT_CFG_PREFIX "ratecontrol") ;
222 p_sys->b_caching = var_GetBool( p_access, SOUT_CFG_PREFIX "caching") ;
223 p_sys->b_generate_iv = var_GetBool( p_access, SOUT_CFG_PREFIX "generate-iv") ;
225 p_sys->segments_t = vlc_array_new();
227 p_sys->stuffing_size = 0;
229 p_sys->psz_indexPath = NULL;
230 psz_idx = var_GetNonEmptyString( p_access, SOUT_CFG_PREFIX "index" );
234 psz_tmp = str_format_time( psz_idx );
241 path_sanitize( psz_tmp );
242 p_sys->psz_indexPath = psz_tmp;
243 vlc_unlink( p_sys->psz_indexPath );
246 p_sys->psz_indexUrl = var_GetNonEmptyString( p_access, SOUT_CFG_PREFIX "index-url" );
248 p_access->p_sys = p_sys;
250 if( CryptSetup( p_access ) < 0 )
252 free( p_sys->psz_indexUrl );
253 free( p_sys->psz_indexPath );
255 msg_Err( p_access, "Encryption init failed" );
259 p_sys->i_handle = -1;
260 p_sys->i_segment = 0;
261 p_sys->psz_cursegPath = NULL;
263 p_access->pf_write = Write;
264 p_access->pf_seek = Seek;
265 p_access->pf_control = Control;
270 /************************************************************************
271 * CryptSetup: Initialize encryption
272 ************************************************************************/
273 static int CryptSetup( sout_access_out_t *p_access )
275 sout_access_out_sys_t *p_sys = p_access->p_sys;
278 p_sys->key_uri = var_GetNonEmptyString( p_access, SOUT_CFG_PREFIX "key-uri" );
279 if( !p_sys->key_uri ) /*No key uri, assume no encryption wanted*/
281 msg_Dbg( p_access, "No key uri, no encryption");
286 /*Setup encryption cipher*/
287 gcry_error_t err = gcry_cipher_open( &p_sys->aes_ctx, GCRY_CIPHER_AES,
288 GCRY_CIPHER_MODE_CBC, 0 );
291 msg_Err( p_access, "Openin AES Cipher failed: %s", gpg_strerror(err));
295 char *keyfile = var_InheritString( p_access, SOUT_CFG_PREFIX "key-file" );
296 if( unlikely(keyfile == NULL) )
298 msg_Err( p_access, "No key-file, no encryption" );
302 int keyfd = vlc_open( keyfile, O_RDONLY | O_NONBLOCK );
303 if( unlikely( keyfd == -1 ) )
305 msg_Err( p_access, "Unable to open keyfile %s: %m", keyfile );
311 ssize_t keylen = read( keyfd, key, 16 );
316 msg_Err( p_access, "No key at least 16 octects (you provided %zd), no encryption", keylen );
320 err = gcry_cipher_setkey( p_sys->aes_ctx, key, 16 );
323 msg_Err(p_access, "Setting AES key failed: %s", gpg_strerror(err));
324 gcry_cipher_close( p_sys->aes_ctx);
328 if( p_sys->b_generate_iv )
329 vlc_rand_bytes( p_sys->aes_ivs, sizeof(uint8_t)*16);
334 /************************************************************************
335 * CryptKey: Set encryption IV to current segment number
336 ************************************************************************/
337 static int CryptKey( sout_access_out_t *p_access, uint32_t i_segment )
339 sout_access_out_sys_t *p_sys = p_access->p_sys;
341 if( !p_sys->b_generate_iv )
343 /* Use segment number as IV if randomIV isn't selected*/
344 memset( p_sys->aes_ivs, 0, 16 * sizeof(uint8_t));
345 p_sys->aes_ivs[15] = i_segment & 0xff;
346 p_sys->aes_ivs[14] = (i_segment >> 8 ) & 0xff;
347 p_sys->aes_ivs[13] = (i_segment >> 16 ) & 0xff;
348 p_sys->aes_ivs[12] = (i_segment >> 24 ) & 0xff;
351 gcry_error_t err = gcry_cipher_setiv( p_sys->aes_ctx,
355 msg_Err(p_access, "Setting AES IVs failed: %s", gpg_strerror(err) );
356 gcry_cipher_close( p_sys->aes_ctx);
363 #define SEG_NUMBER_PLACEHOLDER "#"
364 /*****************************************************************************
365 * formatSegmentPath: create segment path name based on seg #
366 *****************************************************************************/
367 static char *formatSegmentPath( char *psz_path, uint32_t i_seg, bool b_sanitize )
370 char *psz_firstNumSign;
372 if ( ! ( psz_result = str_format_time( psz_path ) ) )
375 psz_firstNumSign = psz_result + strcspn( psz_result, SEG_NUMBER_PLACEHOLDER );
376 if ( *psz_firstNumSign )
379 int i_cnt = strspn( psz_firstNumSign, SEG_NUMBER_PLACEHOLDER );
382 *psz_firstNumSign = '\0';
383 ret = asprintf( &psz_newResult, "%s%0*d%s", psz_result, i_cnt, i_seg, psz_firstNumSign + i_cnt );
387 psz_result = psz_newResult;
391 path_sanitize( psz_result );
396 static void destroySegment( output_segment_t *segment )
398 free( segment->psz_filename );
399 free( segment->psz_duration );
400 free( segment->psz_uri );
401 free( segment->psz_key_uri );
405 /************************************************************************
406 * updateIndexAndDel: If necessary, update index file & delete old segments
407 ************************************************************************/
408 static int updateIndexAndDel( sout_access_out_t *p_access, sout_access_out_sys_t *p_sys, bool b_isend )
413 if ( p_sys->i_numsegs == 0 || p_sys->i_segment < p_sys->i_numsegs )
416 i_firstseg = ( p_sys->i_segment - p_sys->i_numsegs ) + 1;
418 // First update index
419 if ( p_sys->psz_indexPath )
424 if ( asprintf( &psz_idxTmp, "%s.tmp", p_sys->psz_indexPath ) < 0)
427 fp = vlc_fopen( psz_idxTmp, "wt");
430 msg_Err( p_access, "cannot open index file `%s'", psz_idxTmp );
435 if ( fprintf( fp, "#EXTM3U\n#EXT-X-TARGETDURATION:%zu\n#EXT-X-VERSION:3\n#EXT-X-ALLOW-CACHE:%s"
436 "%s\n#EXT-X-MEDIA-SEQUENCE:%"PRIu32"\n", p_sys->i_seglen,
437 p_sys->b_caching ? "YES" : "NO",
438 p_sys->i_numsegs > 0 ? "" : b_isend ? "\n#EXT-X-PLAYLIST-TYPE:VOD" : "\n#EXT-X-PLAYLIST-TYPE:EVENT",
445 char *psz_current_uri=NULL;
448 for ( uint32_t i = i_firstseg; i <= p_sys->i_segment; i++ )
450 //scale to 0..numsegs-1
451 uint32_t index = i-i_firstseg;
453 output_segment_t *segment = (output_segment_t *)vlc_array_item_at_index( p_sys->segments_t, index );
454 if( p_sys->key_uri &&
455 ( !psz_current_uri || strcmp( psz_current_uri, segment->psz_key_uri ) )
459 free( psz_current_uri );
460 psz_current_uri = strdup( segment->psz_key_uri );
461 if( p_sys->b_generate_iv )
463 unsigned long long iv_hi = 0, iv_lo = 0;
464 for( unsigned short i = 0; i < 8; i++ )
466 iv_hi |= segment->aes_ivs[i] & 0xff;
468 iv_lo |= segment->aes_ivs[8+i] & 0xff;
471 ret = fprintf( fp, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\",IV=0X%16.16llx%16.16llx\n",
472 segment->psz_key_uri, iv_hi, iv_lo );
475 ret = fprintf( fp, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"\n", segment->psz_key_uri );
485 val = fprintf( fp, "#EXTINF:%s,\n%s\n", segment->psz_duration, segment->psz_uri);
492 free( psz_current_uri );
496 if ( fputs ( STR_ENDLIST, fp ) < 0)
506 val = vlc_rename ( psz_idxTmp, p_sys->psz_indexPath);
510 vlc_unlink( psz_idxTmp );
511 msg_Err( p_access, "Error moving LiveHttp index file" );
514 msg_Dbg( p_access, "LiveHttpIndexComplete: %s" , p_sys->psz_indexPath );
519 // Then take care of deletion
520 while( p_sys->b_delsegs && p_sys->i_numsegs && ( (vlc_array_count( p_sys->segments_t ) ) >= p_sys->i_numsegs ) )
522 output_segment_t *segment = vlc_array_item_at_index( p_sys->segments_t, 0 );
523 vlc_array_remove( p_sys->segments_t, 0 );
524 if ( segment->psz_filename )
526 vlc_unlink( segment->psz_filename );
528 destroySegment( segment );
535 /*****************************************************************************
536 * closeCurrentSegment: Close the segment file
537 *****************************************************************************/
538 static void closeCurrentSegment( sout_access_out_t *p_access, sout_access_out_sys_t *p_sys, bool b_isend )
540 if ( p_sys->i_handle >= 0 )
542 output_segment_t *segment = (output_segment_t *)vlc_array_item_at_index( p_sys->segments_t, vlc_array_count( p_sys->segments_t ) - 1 );
546 size_t pad = 16 - p_sys->stuffing_size;
547 memset(&p_sys->stuffing_bytes[p_sys->stuffing_size], pad, pad);
548 gcry_error_t err = gcry_cipher_encrypt( p_sys->aes_ctx, p_sys->stuffing_bytes, 16, NULL, 0 );
551 msg_Err( p_access, "Couldn't encrypt 16 bytes: %s", gpg_strerror(err) );
553 int ret = write( p_sys->i_handle, p_sys->stuffing_bytes, 16 );
555 msg_Err( p_access, "Couldn't write 16 bytes" );
557 p_sys->stuffing_size = 0;
561 close( p_sys->i_handle );
562 p_sys->i_handle = -1;
564 if( ! ( us_asprintf( &segment->psz_duration, "%.2f", p_sys->f_seglen ) ) )
566 msg_Err( p_access, "Couldn't set duration on closed segment");
570 segment->i_segment_number = p_sys->i_segment;
572 if ( p_sys->psz_cursegPath )
574 msg_Dbg( p_access, "LiveHttpSegmentComplete: %s (%"PRIu32")" , p_sys->psz_cursegPath, p_sys->i_segment );
575 free( p_sys->psz_cursegPath );
576 p_sys->psz_cursegPath = 0;
577 updateIndexAndDel( p_access, p_sys, b_isend );
582 /*****************************************************************************
583 * Close: close the target
584 *****************************************************************************/
585 static void Close( vlc_object_t * p_this )
587 sout_access_out_t *p_access = (sout_access_out_t*)p_this;
588 sout_access_out_sys_t *p_sys = p_access->p_sys;
590 msg_Dbg( p_access, "Flushing buffer to last file");
591 bool crypted = false;
592 while( p_sys->block_buffer )
594 if( p_sys->key_uri && !crypted)
596 if( p_sys->stuffing_size )
598 p_sys->block_buffer = block_Realloc( p_sys->block_buffer, p_sys->stuffing_size, p_sys->block_buffer->i_buffer );
599 if( unlikely(!p_sys->block_buffer) )
601 memcpy( p_sys->block_buffer->p_buffer, p_sys->stuffing_bytes, p_sys->stuffing_size );
602 p_sys->stuffing_size = 0;
604 size_t original = p_sys->block_buffer->i_buffer;
605 size_t padded = (original + 15 ) & ~15;
606 size_t pad = padded - original;
609 p_sys->stuffing_size = 16 - pad;
610 p_sys->block_buffer->i_buffer -= p_sys->stuffing_size;
611 memcpy( p_sys->stuffing_bytes, &p_sys->block_buffer->p_buffer[p_sys->block_buffer->i_buffer], p_sys->stuffing_size );
614 gcry_error_t err = gcry_cipher_encrypt( p_sys->aes_ctx,
615 p_sys->block_buffer->p_buffer, p_sys->block_buffer->i_buffer, NULL, 0 );
618 msg_Err( p_access, "Encryption failure: %s ", gpg_strerror(err) );
623 ssize_t val = write( p_sys->i_handle, p_sys->block_buffer->p_buffer, p_sys->block_buffer->i_buffer );
626 if ( errno == EINTR )
628 block_ChainRelease ( p_sys->block_buffer);
631 if( !p_sys->block_buffer->p_next )
633 p_sys->f_seglen = (float)( p_sys->block_buffer->i_length / (1000000)) +
634 (float)(p_sys->block_buffer->i_dts - p_sys->i_opendts) / CLOCK_FREQ;
637 if ( likely( (size_t)val >= p_sys->block_buffer->i_buffer ) )
639 block_t *p_next = p_sys->block_buffer->p_next;
640 block_Release (p_sys->block_buffer);
641 p_sys->block_buffer = p_next;
646 p_sys->block_buffer->p_buffer += val;
647 p_sys->block_buffer->i_buffer -= val;
651 closeCurrentSegment( p_access, p_sys, true );
655 gcry_cipher_close( p_sys->aes_ctx );
656 free( p_sys->key_uri );
659 while( vlc_array_count( p_sys->segments_t ) > 0 )
661 output_segment_t *segment = vlc_array_item_at_index( p_sys->segments_t, 0 );
662 vlc_array_remove( p_sys->segments_t, 0 );
663 destroySegment( segment );
665 vlc_array_destroy( p_sys->segments_t );
667 free( p_sys->psz_indexUrl );
668 free( p_sys->psz_indexPath );
671 msg_Dbg( p_access, "livehttp access output closed" );
674 static int Control( sout_access_out_t *p_access, int i_query, va_list args )
676 sout_access_out_sys_t *p_sys = p_access->p_sys;
680 case ACCESS_OUT_CONTROLS_PACE:
682 bool *pb = va_arg( args, bool * );
683 *pb = !p_sys->b_ratecontrol;
694 /*****************************************************************************
695 * openNextFile: Open the segment file
696 *****************************************************************************/
697 static ssize_t openNextFile( sout_access_out_t *p_access, sout_access_out_sys_t *p_sys )
701 uint32_t i_newseg = p_sys->i_segment + 1;
703 /* Create segment and fill it info that we can (everything excluding duration */
704 output_segment_t *segment = (output_segment_t*)malloc(sizeof(output_segment_t));
705 if( unlikely( !segment ) )
708 memset( segment, 0 , sizeof( output_segment_t ) );
710 segment->i_segment_number = i_newseg;
711 segment->psz_filename = formatSegmentPath( p_access->psz_path, i_newseg, true );
712 char *psz_idxFormat = p_sys->psz_indexUrl ? p_sys->psz_indexUrl : p_access->psz_path;
713 segment->psz_uri = formatSegmentPath( psz_idxFormat , i_newseg, true );
715 if ( unlikely( !segment->psz_filename ) )
717 msg_Err( p_access, "Format segmentpath failed");
723 fd = vlc_open( segment->psz_filename, O_WRONLY | O_CREAT | O_LARGEFILE |
727 msg_Err( p_access, "cannot open `%s' (%m)", segment->psz_filename );
728 destroySegment( segment );
732 vlc_array_append( p_sys->segments_t, segment);
736 segment->psz_key_uri = strdup( p_sys->key_uri );
737 CryptKey( p_access, i_newseg );
738 if( p_sys->b_generate_iv )
739 memcpy( segment->aes_ivs, p_sys->aes_ivs, sizeof(uint8_t)*16 );
741 msg_Dbg( p_access, "Successfully opened livehttp file: %s (%"PRIu32")" , segment->psz_filename, i_newseg );
743 p_sys->psz_cursegPath = strdup(segment->psz_filename);
744 p_sys->i_handle = fd;
745 p_sys->i_segment = i_newseg;
749 /*****************************************************************************
750 * Write: standard write on a file descriptor.
751 *****************************************************************************/
752 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
755 sout_access_out_sys_t *p_sys = p_access->p_sys;
760 if ( ( p_sys->b_splitanywhere || ( p_buffer->i_flags & BLOCK_FLAG_HEADER ) ) )
762 bool crypted = false;
763 block_t *output = p_sys->block_buffer;
764 p_sys->block_buffer = NULL;
767 if( p_sys->i_handle > 0 &&
768 ( p_buffer->i_dts - p_sys->i_opendts +
769 p_buffer->i_length * CLOCK_FREQ / INT64_C(1000000)
770 ) >= p_sys->i_seglenm )
771 closeCurrentSegment( p_access, p_sys, false );
773 if ( p_sys->i_handle < 0 )
775 p_sys->i_opendts = output ? output->i_dts : p_buffer->i_dts;
776 if ( openNextFile( p_access, p_sys ) < 0 )
782 if( p_sys->key_uri && !crypted )
784 if( p_sys->stuffing_size )
786 output = block_Realloc( output, p_sys->stuffing_size, output->i_buffer );
787 if( unlikely(!output ) )
789 memcpy( output->p_buffer, p_sys->stuffing_bytes, p_sys->stuffing_size );
790 p_sys->stuffing_size = 0;
792 size_t original = output->i_buffer;
793 size_t padded = (output->i_buffer + 15 ) & ~15;
794 size_t pad = padded - original;
797 p_sys->stuffing_size = 16-pad;
798 output->i_buffer -= p_sys->stuffing_size;
799 memcpy(p_sys->stuffing_bytes, &output->p_buffer[output->i_buffer], p_sys->stuffing_size);
802 gcry_error_t err = gcry_cipher_encrypt( p_sys->aes_ctx,
803 output->p_buffer, output->i_buffer, NULL, 0 );
806 msg_Err( p_access, "Encryption failure: %s ", gpg_strerror(err) );
812 ssize_t val = write( p_sys->i_handle, output->p_buffer, output->i_buffer );
815 if ( errno == EINTR )
817 block_ChainRelease ( p_buffer );
821 (float)output->i_length / INT64_C(1000000) +
822 (float)(output->i_dts - p_sys->i_opendts) / CLOCK_FREQ;
824 if ( (size_t)val >= output->i_buffer )
826 block_t *p_next = output->p_next;
827 block_Release (output);
833 output->p_buffer += val;
834 output->i_buffer -= val;
840 p_temp = p_buffer->p_next;
841 p_buffer->p_next = NULL;
842 block_ChainAppend( &p_sys->block_buffer, p_buffer );
849 /*****************************************************************************
850 * Seek: seek to a specific location in a file
851 *****************************************************************************/
852 static int Seek( sout_access_out_t *p_access, off_t i_pos )
855 msg_Err( p_access, "livehttp sout access cannot seek" );