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Commit e8b7b598 authored by Ilkka Ollakka's avatar Ilkka Ollakka
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livehttp: use vlc_array to store segment info 

This contains filename and url and key_url, so we don't need to
iterate filename again and again and allows for example generate
other style of filenames than just segment-numbers.

Also actually allows to use strftime specifiers in filenames.
parent 6d044920
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Showing with 106 additions and 81 deletions
modules/access_output/livehttp.c
View file @ e8b7b598
......@@ -153,6 +153,15 @@ static ssize_t Write( sout_access_out_t *, block_t * );
static int Seek ( sout_access_out_t *, off_t );
static int Control( sout_access_out_t *, int, va_list );
typedef struct output_segment
{
char *psz_filename;
char *psz_uri;
char *psz_key_uri;
char *psz_duration;
uint32_t i_segment_number;
} output_segment_t;
struct sout_access_out_sys_t
{
char *psz_cursegPath;
......@@ -162,11 +171,10 @@ struct sout_access_out_sys_t
mtime_t i_seglenm;
uint32_t i_segment;
size_t i_seglen;
float *p_seglens;
float f_seglen;
block_t *block_buffer;
int i_handle;
unsigned i_numsegs;
unsigned i_seglens;
bool b_delsegs;
bool b_ratecontrol;
bool b_splitanywhere;
......@@ -177,6 +185,7 @@ struct sout_access_out_sys_t
char *key_uri;
uint8_t stuffing_bytes[16];
ssize_t stuffing_size;
vlc_array_t *segments_t;
};
static int CryptSetup( sout_access_out_t *p_access );
......@@ -212,20 +221,9 @@ static int Open( vlc_object_t *p_this )
p_sys->b_caching = var_GetBool( p_access, SOUT_CFG_PREFIX "caching") ;
p_sys->b_generate_iv = var_GetBool( p_access, SOUT_CFG_PREFIX "generate-iv") ;
p_sys->stuffing_size = 0;
p_sys->segments_t = vlc_array_new();
/* 5 elements is from harrison-stetson algorithm to start from some number
* if we don't have numsegs defined
*/
p_sys->i_seglens = 5;
if( p_sys->i_numsegs )
p_sys->i_seglens = p_sys->i_numsegs+1;
p_sys->p_seglens = malloc( sizeof(float) * p_sys->i_seglens );
if( unlikely( !p_sys->p_seglens ) )
{
free( p_sys );
return VLC_ENOMEM;
}
p_sys->stuffing_size = 0;
p_sys->psz_indexPath = NULL;
psz_idx = var_GetNonEmptyString( p_access, SOUT_CFG_PREFIX "index" );
......@@ -236,7 +234,6 @@ static int Open( vlc_object_t *p_this )
free( psz_idx );
if ( !psz_tmp )
{
free( p_sys->p_seglens );
free( p_sys );
return VLC_ENOMEM;
}
......@@ -253,7 +250,6 @@ static int Open( vlc_object_t *p_this )
{
free( p_sys->psz_indexUrl );
free( p_sys->psz_indexPath );
free( p_sys->p_seglens );
free( p_sys );
msg_Err( p_access, "Encryption init failed" );
return VLC_EGENERIC;
......@@ -396,6 +392,15 @@ static char *formatSegmentPath( char *psz_path, uint32_t i_seg, bool b_sanitize
return psz_result;
}
static void destroySegment( output_segment_t *segment )
{
free( segment->psz_filename );
free( segment->psz_duration );
free( segment->psz_uri );
free( segment->psz_key_uri );
free( segment );
}
/************************************************************************
* updateIndexAndDel: If necessary, update index file & delete old segments
************************************************************************/
......@@ -405,18 +410,7 @@ static int updateIndexAndDel( sout_access_out_t *p_access, sout_access_out_sys_t
uint32_t i_firstseg;
if ( p_sys->i_numsegs == 0 || p_sys->i_segment < p_sys->i_numsegs )
{
i_firstseg = 1;
if( p_sys->i_segment >= (p_sys->i_seglens-1) )
{
p_sys->i_seglens <<= 1;
msg_Dbg( p_access, "Segment amount %u", p_sys->i_seglens );
p_sys->p_seglens = realloc( p_sys->p_seglens, sizeof(float) * p_sys->i_seglens );
if( unlikely( !p_sys->p_seglens ) )
return -1;
}
}
else
i_firstseg = ( p_sys->i_segment - p_sys->i_numsegs ) + 1;
......@@ -475,29 +469,16 @@ static int updateIndexAndDel( sout_access_out_t *p_access, sout_access_out_sys_t
}
}
char *psz_idxFormat = p_sys->psz_indexUrl ? p_sys->psz_indexUrl : p_access->psz_path;
for ( uint32_t i = i_firstseg; i <= p_sys->i_segment; i++ )
{
char *psz_name;
char *psz_duration = NULL;
if ( ! ( psz_name = formatSegmentPath( psz_idxFormat, i, false ) ) )
{
free( psz_idxTmp );
fclose( fp );
return -1;
}
if( ! ( us_asprintf( &psz_duration, "%.2f", p_sys->p_seglens[i % p_sys->i_seglens ], psz_name ) ) )
{
free( psz_idxTmp );
fclose( fp );
return -1;
}
val = fprintf( fp, "#EXTINF:%s,\n%s\n", psz_duration, psz_name );
free( psz_duration );
free( psz_name );
//scale to 0..numsegs-1
uint32_t index = i-i_firstseg;
output_segment_t *segment = (output_segment_t *)vlc_array_item_at_index( p_sys->segments_t, index );
val = fprintf( fp, "#EXTINF:%s,\n%s\n", segment->psz_duration, segment->psz_uri);
if ( val < 0 )
{
free( psz_idxTmp );
fclose( fp );
return -1;
}
......@@ -523,21 +504,24 @@ static int updateIndexAndDel( sout_access_out_t *p_access, sout_access_out_sys_t
msg_Err( p_access, "Error moving LiveHttp index file" );
}
else
msg_Info( p_access, "LiveHttpIndexComplete: %s" , p_sys->psz_indexPath );
msg_Dbg( p_access, "LiveHttpIndexComplete: %s" , p_sys->psz_indexPath );
free( psz_idxTmp );
}
// Then take care of deletion
if ( p_sys->b_delsegs && i_firstseg > 1 )
while( p_sys->b_delsegs && p_sys->i_numsegs && ( (vlc_array_count( p_sys->segments_t ) ) >= p_sys->i_numsegs ) )
{
char *psz_name = formatSegmentPath( p_access->psz_path, i_firstseg-1, true );
if ( psz_name )
output_segment_t *segment = vlc_array_item_at_index( p_sys->segments_t, 0 );
vlc_array_remove( p_sys->segments_t, 0 );
if ( segment->psz_filename )
{
vlc_unlink( psz_name );
free( psz_name );
vlc_unlink( segment->psz_filename );
}
destroySegment( segment );
}
return 0;
}
......@@ -548,26 +532,39 @@ static void closeCurrentSegment( sout_access_out_t *p_access, sout_access_out_sy
{
if ( p_sys->i_handle >= 0 )
{
if( p_sys->key_uri )
{
size_t pad = 16 - p_sys->stuffing_size;
output_segment_t *segment = (output_segment_t *)vlc_array_item_at_index( p_sys->segments_t, vlc_array_count( p_sys->segments_t ) - 1 );
if( p_sys->key_uri )
{
size_t pad = 16 - p_sys->stuffing_size;
memset(&p_sys->stuffing_bytes[p_sys->stuffing_size], pad, pad);
gcry_error_t err = gcry_cipher_encrypt( p_sys->aes_ctx, p_sys->stuffing_bytes, 16, NULL, 0 );
gcry_error_t err = gcry_cipher_encrypt( p_sys->aes_ctx, p_sys->stuffing_bytes, 16, NULL, 0 );
if( err ) {
msg_Err( p_access, "Couldn't encrypt 16 bytes: %s", gpg_strerror(err) );
} else {
int ret = write( p_sys->i_handle, p_sys->stuffing_bytes, 16 );
if( ret != 16 )
msg_Err( p_access, "Couldn't write 16 bytes" );
msg_Err( p_access, "Couldn't encrypt 16 bytes: %s", gpg_strerror(err) );
} else {
int ret = write( p_sys->i_handle, p_sys->stuffing_bytes, 16 );
if( ret != 16 )
msg_Err( p_access, "Couldn't write 16 bytes" );
}
p_sys->stuffing_size = 0;
}
}
close( p_sys->i_handle );
p_sys->i_handle = -1;
if( ! ( us_asprintf( &segment->psz_duration, "%.2f", p_sys->f_seglen ) ) )
{
msg_Err( p_access, "Couldn't set duration on closed segment");
return;
}
segment->i_segment_number = p_sys->i_segment;
if ( p_sys->psz_cursegPath )
{
msg_Info( p_access, "LiveHttpSegmentComplete: %s (%"PRIu32")" , p_sys->psz_cursegPath, p_sys->i_segment );
msg_Dbg( p_access, "LiveHttpSegmentComplete: %s (%"PRIu32")" , p_sys->psz_cursegPath, p_sys->i_segment );
free( p_sys->psz_cursegPath );
p_sys->psz_cursegPath = 0;
updateIndexAndDel( p_access, p_sys, b_isend );
......@@ -626,12 +623,11 @@ static void Close( vlc_object_t * p_this )
}
if( !p_sys->block_buffer->p_next )
{
p_sys->p_seglens[p_sys->i_segment % p_sys->i_seglens ] =
(float)( p_sys->block_buffer->i_length / (1000000)) +
(float)(p_sys->block_buffer->i_dts - p_sys->i_opendts) / CLOCK_FREQ;
p_sys->f_seglen = (float)( p_sys->block_buffer->i_length / (1000000)) +
(float)(p_sys->block_buffer->i_dts - p_sys->i_opendts) / CLOCK_FREQ;
}
if ( (size_t)val >= p_sys->block_buffer->i_buffer )
if ( likely( (size_t)val >= p_sys->block_buffer->i_buffer ) )
{
block_t *p_next = p_sys->block_buffer->p_next;
block_Release (p_sys->block_buffer);
......@@ -646,16 +642,25 @@ static void Close( vlc_object_t * p_this )
}
closeCurrentSegment( p_access, p_sys, true );
free( p_sys->psz_indexUrl );
free( p_sys->psz_indexPath );
free( p_sys->p_seglens );
free( p_sys );
if( p_sys->key_uri )
{
gcry_cipher_close( p_sys->aes_ctx );
free( p_sys->key_uri );
}
while( vlc_array_count( p_sys->segments_t ) > 0 )
{
output_segment_t *segment = vlc_array_item_at_index( p_sys->segments_t, 0 );
vlc_array_remove( p_sys->segments_t, 0 );
destroySegment( segment );
}
vlc_array_destroy( p_sys->segments_t );
free( p_sys->psz_indexUrl );
free( p_sys->psz_indexPath );
free( p_sys );
msg_Dbg( p_access, "livehttp access output closed" );
}
......@@ -688,25 +693,45 @@ static ssize_t openNextFile( sout_access_out_t *p_access, sout_access_out_sys_t
uint32_t i_newseg = p_sys->i_segment + 1;
char *psz_seg = formatSegmentPath( p_access->psz_path, i_newseg, true );
if ( !psz_seg )
/* Create segment and fill it info that we can (everything excluding duration */
output_segment_t *segment = (output_segment_t*)malloc(sizeof(output_segment_t));
if( unlikely( !segment ) )
return -1;
fd = vlc_open( psz_seg, O_WRONLY | O_CREAT | O_LARGEFILE |
memset( segment, 0 , sizeof( output_segment_t ) );
segment->i_segment_number = i_newseg;
segment->psz_filename = formatSegmentPath( p_access->psz_path, i_newseg, true );
char *psz_idxFormat = p_sys->psz_indexUrl ? p_sys->psz_indexUrl : p_access->psz_path;
segment->psz_uri = formatSegmentPath( psz_idxFormat , i_newseg, true );
if ( unlikely( !segment->psz_filename ) )
{
msg_Err( p_access, "Format segmentpath failed");
return -1;
}
fd = vlc_open( segment->psz_filename, O_WRONLY | O_CREAT | O_LARGEFILE |
O_TRUNC, 0666 );
if ( fd == -1 )
{
msg_Err( p_access, "cannot open `%s' (%m)", psz_seg );
free( psz_seg );
msg_Err( p_access, "cannot open `%s' (%m)", segment->psz_filename );
destroySegment( segment );
return -1;
}
vlc_array_append( p_sys->segments_t, segment);
if( p_sys->key_uri )
{
segment->psz_key_uri = strdup( p_sys->key_uri );
CryptKey( p_access, i_newseg );
msg_Dbg( p_access, "Successfully opened livehttp file: %s (%"PRIu32")" , psz_seg, i_newseg );
}
msg_Dbg( p_access, "Successfully opened livehttp file: %s (%"PRIu32")" , segment->psz_filename, i_newseg );
//free( psz_seg );
p_sys->psz_cursegPath = psz_seg;
p_sys->psz_cursegPath = strdup(segment->psz_filename);
p_sys->i_handle = fd;
p_sys->i_segment = i_newseg;
return fd;
......@@ -783,7 +808,7 @@ static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
block_ChainRelease ( p_buffer );
return -1;
}
p_sys->p_seglens[p_sys->i_segment % p_sys->i_seglens ] =
p_sys->f_seglen =
(float)output->i_length / INT64_C(1000000) +
(float)(output->i_dts - p_sys->i_opendts) / CLOCK_FREQ;
......
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