#include <vlc_sout.h>
#include <vlc_block.h>
#include <vlc_codecs.h>
+#include <limits.h>
+#include <vlc_rand.h>
+#include "../demux/xiph.h"
#include <ogg/ogg.h>
set_capability( "sout mux", 10 )
set_category( CAT_SOUT )
set_subcategory( SUBCAT_SOUT_MUX )
- add_shortcut( "ogg" )
- add_shortcut( "ogm" )
+ add_shortcut( "ogg", "ogm" )
set_callbacks( Open, Close )
vlc_module_end ()
} oggds_header_t;
-/*
- * TODO move this function to src/stream_output.c (used by nearly all muxers)
- */
-static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
-{
- mtime_t i_dts;
- int i_stream, i;
-
- for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
- {
- block_fifo_t *p_fifo;
-
- p_fifo = p_mux->pp_inputs[i]->p_fifo;
-
- /* We don't really need to have anything in the SPU fifo */
- if( p_mux->pp_inputs[i]->p_fmt->i_cat == SPU_ES &&
- block_FifoCount( p_fifo ) == 0 ) continue;
-
- if( block_FifoCount( p_fifo ) )
- {
- block_t *p_buf;
-
- p_buf = block_FifoShow( p_fifo );
- if( i_stream < 0 || p_buf->i_dts < i_dts )
- {
- i_dts = p_buf->i_dts;
- i_stream = i;
- }
- }
- else return -1;
-
- }
- if( pi_stream ) *pi_stream = i_stream;
- if( pi_dts ) *pi_dts = i_dts;
- return i_stream;
-}
-
/*****************************************************************************
* Definitions of structures and functions used by this plugins
*****************************************************************************/
int i_packet_no;
int i_serial_no;
int i_keyframe_granule_shift; /* Theora only */
- int i_last_keyframe; /* dirac and eventually theora */
+ int i_last_keyframe; /* dirac and theora */
+ int i_num_frames; /* Theora only */
uint64_t u_last_granulepos; /* Used for correct EOS page */
+ int64_t i_num_keyframes;
ogg_stream_state os;
oggds_header_t *p_oggds_header;
/* First serial number is random.
* (Done like this because on win32 you need to seed the random number
* generator once per thread). */
- srand( (unsigned int)time( NULL ) );
- p_sys->i_next_serial_no = rand();
+ uint32_t r;
+ vlc_rand_bytes(&r, sizeof(r));
+ p_sys->i_next_serial_no = r & INT_MAX;
return VLC_SUCCESS;
}
if( p_sys->i_del_streams )
{
block_t *p_og = NULL;
- mtime_t i_dts = -1;
- int i;
+ mtime_t i_dts = p_sys->pp_del_streams[p_sys->i_del_streams - 1]->i_dts;
/* Close the current ogg stream */
msg_Dbg( p_mux, "writing footer" );
block_ChainAppend( &p_og, OggCreateFooter( p_mux ) );
/* Remove deleted logical streams */
- for( i = 0; i < p_sys->i_del_streams; i++ )
+ for(int i = 0; i < p_sys->i_del_streams; i++ )
{
- i_dts = p_sys->pp_del_streams[i]->i_dts;
ogg_stream_clear( &p_sys->pp_del_streams[i]->os );
FREENULL( p_sys->pp_del_streams[i]->p_oggds_header );
FREENULL( p_sys->pp_del_streams[i] );
p_stream->i_fourcc = p_input->p_fmt->i_codec;
p_stream->i_serial_no = p_sys->i_next_serial_no++;
p_stream->i_packet_no = 0;
+ p_stream->i_last_keyframe = 0;
+ p_stream->i_num_keyframes = 0;
+ p_stream->i_num_frames = 0;
p_stream->p_oggds_header = 0;
/* move input in delete queue */
if( !p_stream->b_new )
{
- p_sys->pp_del_streams = realloc( p_sys->pp_del_streams,
- (p_sys->i_del_streams + 1) *
- sizeof(ogg_stream_t *) );
+ p_sys->pp_del_streams = xrealloc( p_sys->pp_del_streams,
+ (p_sys->i_del_streams + 1) * sizeof(ogg_stream_t *) );
p_sys->pp_del_streams[p_sys->i_del_streams++] = p_stream;
}
else
/*****************************************************************************
* Ogg bitstream manipulation routines
*****************************************************************************/
-static block_t *OggStreamFlush( sout_mux_t *p_mux,
- ogg_stream_state *p_os, mtime_t i_pts )
+static block_t *OggStreamGetPage( sout_mux_t *p_mux,
+ ogg_stream_state *p_os, mtime_t i_pts,
+ bool flush )
{
(void)p_mux;
block_t *p_og, *p_og_first = NULL;
ogg_page og;
+ int (*pager)( ogg_stream_state*, ogg_page* ) = flush ? ogg_stream_flush : ogg_stream_pageout;
- while( ogg_stream_flush( p_os, &og ) )
+ while( pager( p_os, &og ) )
{
/* Flush all data */
p_og = block_New( p_mux, og.header_len + og.body_len );
return p_og_first;
}
+static block_t *OggStreamFlush( sout_mux_t *p_mux,
+ ogg_stream_state *p_os, mtime_t i_pts )
+{
+ return OggStreamGetPage( p_mux, p_os, i_pts, true );
+}
+
static block_t *OggStreamPageOut( sout_mux_t *p_mux,
ogg_stream_state *p_os, mtime_t i_pts )
{
- (void)p_mux;
- block_t *p_og, *p_og_first = NULL;
- ogg_page og;
-
- while( ogg_stream_pageout( p_os, &og ) )
- {
- /* Flush all data */
- p_og = block_New( p_mux, og.header_len + og.body_len );
-
- memcpy( p_og->p_buffer, og.header, og.header_len );
- memcpy( p_og->p_buffer + og.header_len, og.body, og.body_len );
- p_og->i_dts = 0;
- p_og->i_pts = i_pts;
- p_og->i_length = 0;
-
- i_pts = 0; // write them only once
-
- block_ChainAppend( &p_og_first, p_og );
- }
-
- return p_og_first;
+ return OggStreamGetPage( p_mux, p_os, i_pts, false );
}
static block_t *OggCreateHeader( sout_mux_t *p_mux )
block_t *p_hdr = NULL;
block_t *p_og = NULL;
ogg_packet op;
- uint8_t *p_extra;
- int i, i_extra;
+ int i;
/* Write header for each stream. All b_o_s (beginning of stream) packets
* must appear first in the ogg stream so we take care of them first. */
- for( i = 0; i < p_mux->i_nb_inputs; i++ )
+ for( int pass = 0; pass < 2; pass++ )
{
- sout_input_t *p_input = p_mux->pp_inputs[i];
- ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
- p_stream->b_new = false;
+ for( i = 0; i < p_mux->i_nb_inputs; i++ )
+ {
+ sout_input_t *p_input = p_mux->pp_inputs[i];
+ ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
- msg_Dbg( p_mux, "creating header for %4.4s",
- (char *)&p_stream->i_fourcc );
+ bool video = ( p_stream->i_fourcc == VLC_CODEC_THEORA || p_stream->i_fourcc == VLC_CODEC_DIRAC );
+ if( ( ( pass == 0 && !video ) || ( pass == 1 && video ) ) )
+ continue;
- ogg_stream_init( &p_stream->os, p_stream->i_serial_no );
- p_stream->i_packet_no = 0;
+ msg_Dbg( p_mux, "creating header for %4.4s",
+ (char *)&p_stream->i_fourcc );
- if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
- p_stream->i_fourcc == VLC_CODEC_SPEEX ||
- p_stream->i_fourcc == VLC_CODEC_THEORA )
- {
- /* First packet in order: vorbis/speex/theora info */
- p_extra = p_input->p_fmt->p_extra;
- i_extra = p_input->p_fmt->i_extra;
-
- op.bytes = *(p_extra++) << 8;
- op.bytes |= (*(p_extra++) & 0xFF);
- op.packet = p_extra;
- i_extra -= (op.bytes + 2);
- if( i_extra < 0 )
+ ogg_stream_init( &p_stream->os, p_stream->i_serial_no );
+ p_stream->b_new = false;
+ p_stream->i_packet_no = 0;
+
+ if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
+ p_stream->i_fourcc == VLC_CODEC_SPEEX ||
+ p_stream->i_fourcc == VLC_CODEC_THEORA )
{
- msg_Err( p_mux, "header data corrupted");
- op.bytes += i_extra;
- }
+ /* First packet in order: vorbis/speex/theora info */
+ unsigned pi_size[XIPH_MAX_HEADER_COUNT];
+ void *pp_data[XIPH_MAX_HEADER_COUNT];
+ unsigned i_count;
+ if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
+ p_input->p_fmt->i_extra, p_input->p_fmt->p_extra ) )
+ {
+ i_count = 0;
+ pi_size[0] = 0;
+ pp_data[0] = NULL;
+ }
- op.b_o_s = 1;
- op.e_o_s = 0;
- op.granulepos = 0;
- op.packetno = p_stream->i_packet_no++;
- ogg_stream_packetin( &p_stream->os, &op );
- p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
+ op.bytes = pi_size[0];
+ op.packet = pp_data[0];
+ if( pi_size[0] <= 0 )
+ msg_Err( p_mux, "header data corrupted");
- /* Get keyframe_granule_shift for theora granulepos calculation */
- if( p_stream->i_fourcc == VLC_CODEC_THEORA )
- {
- int i_keyframe_frequency_force =
- 1 << ((op.packet[40] << 6 >> 3) | (op.packet[41] >> 5));
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+ p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
- /* granule_shift = i_log( frequency_force -1 ) */
- p_stream->i_keyframe_granule_shift = 0;
- i_keyframe_frequency_force--;
- while( i_keyframe_frequency_force )
+ /* Get keyframe_granule_shift for theora granulepos calculation */
+ if( p_stream->i_fourcc == VLC_CODEC_THEORA )
{
- p_stream->i_keyframe_granule_shift++;
- i_keyframe_frequency_force >>= 1;
+ p_stream->i_keyframe_granule_shift =
+ ( (op.packet[40] & 0x03) << 3 ) | ( (op.packet[41] & 0xe0) >> 5 );
}
+
+ for( unsigned i = 0; i < i_count; i++ )
+ free( pp_data[i] );
+ }
+ else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
+ {
+ op.packet = p_input->p_fmt->p_extra;
+ op.bytes = p_input->p_fmt->i_extra;
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = ~0;
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+ p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
+ }
+ else if( p_stream->i_fourcc == VLC_CODEC_FLAC )
+ {
+ /* flac stream marker (yeah, only that in the 1st packet) */
+ op.packet = (unsigned char *)"fLaC";
+ op.bytes = 4;
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+ p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
+ }
+ else if( p_stream->p_oggds_header )
+ {
+ /* ds header */
+ op.packet = (uint8_t*)p_stream->p_oggds_header;
+ op.bytes = p_stream->p_oggds_header->i_size + 1;
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = p_stream->i_packet_no++;
+ ogg_stream_packetin( &p_stream->os, &op );
+ p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
}
- }
- else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
- {
- op.packet = p_input->p_fmt->p_extra;
- op.bytes = p_input->p_fmt->i_extra;
- op.b_o_s = 1;
- op.e_o_s = 0;
- op.granulepos = ~0;
- op.packetno = p_stream->i_packet_no++;
- ogg_stream_packetin( &p_stream->os, &op );
- p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
- }
- else if( p_stream->i_fourcc == VLC_CODEC_FLAC )
- {
- /* flac stream marker (yeah, only that in the 1st packet) */
- op.packet = (unsigned char *)"fLaC";
- op.bytes = 4;
- op.b_o_s = 1;
- op.e_o_s = 0;
- op.granulepos = 0;
- op.packetno = p_stream->i_packet_no++;
- ogg_stream_packetin( &p_stream->os, &op );
- p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
- }
- else if( p_stream->p_oggds_header )
- {
- /* ds header */
- op.packet = (uint8_t*)p_stream->p_oggds_header;
- op.bytes = p_stream->p_oggds_header->i_size + 1;
- op.b_o_s = 1;
- op.e_o_s = 0;
- op.granulepos = 0;
- op.packetno = p_stream->i_packet_no++;
- ogg_stream_packetin( &p_stream->os, &op );
- p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
- }
- block_ChainAppend( &p_hdr, p_og );
+ block_ChainAppend( &p_hdr, p_og );
+ }
}
/* Take care of the non b_o_s headers */
p_stream->i_fourcc == VLC_CODEC_SPEEX ||
p_stream->i_fourcc == VLC_CODEC_THEORA )
{
+ unsigned pi_size[XIPH_MAX_HEADER_COUNT];
+ void *pp_data[XIPH_MAX_HEADER_COUNT];
+ unsigned i_count;
+ if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
+ p_input->p_fmt->i_extra, p_input->p_fmt->p_extra ) )
+ i_count = 0;
+
/* Special case, headers are already there in the incoming stream.
* We need to gather them an mark them as headers. */
- int j = 2;
-
- if( p_stream->i_fourcc == VLC_CODEC_SPEEX ) j = 1;
-
- p_extra = p_input->p_fmt->p_extra;
- i_extra = p_input->p_fmt->i_extra;
-
- /* Skip 1 header */
- op.bytes = *(p_extra++) << 8;
- op.bytes |= (*(p_extra++) & 0xFF);
- op.packet = p_extra;
- p_extra += op.bytes;
- i_extra -= (op.bytes + 2);
-
- while( j-- )
+ for( unsigned i = 1; i < i_count; i++ )
{
- op.bytes = *(p_extra++) << 8;
- op.bytes |= (*(p_extra++) & 0xFF);
- op.packet = p_extra;
- p_extra += op.bytes;
- i_extra -= (op.bytes + 2);
- if( i_extra < 0 )
- {
+ op.bytes = pi_size[i];
+ op.packet = pp_data[i];
+ if( pi_size[i] <= 0 )
msg_Err( p_mux, "header data corrupted");
- op.bytes += i_extra;
- }
op.b_o_s = 0;
op.e_o_s = 0;
op.packetno = p_stream->i_packet_no++;
ogg_stream_packetin( &p_stream->os, &op );
- p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
- block_ChainAppend( &p_hdr, p_og );
+ if( i == i_count - 1 )
+ p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
+ else
+ p_og = OggStreamPageOut( p_mux, &p_stream->os, 0 );
+ if( p_og )
+ block_ChainAppend( &p_hdr, p_og );
}
+ for( unsigned i = 0; i < i_count; i++ )
+ free( pp_data[i] );
}
else if( p_stream->i_fourcc != VLC_CODEC_FLAC &&
p_stream->i_fourcc != VLC_CODEC_DIRAC )
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
block_t *p_og = NULL;
- int i_stream;
mtime_t i_dts;
if( p_sys->i_add_streams || p_sys->i_del_streams )
{
/* Open new ogg stream */
- if( MuxGetStream( p_mux, &i_stream, &i_dts) < 0 )
+ if( sout_MuxGetStream( p_mux, 1, &i_dts) < 0 )
{
msg_Dbg( p_mux, "waiting for data..." );
return VLC_SUCCESS;
for( ;; )
{
- if( MuxGetStream( p_mux, &i_stream, 0 ) < 0 ) return VLC_SUCCESS;
+ int i_stream = sout_MuxGetStream( p_mux, 1, NULL );
+ if( i_stream < 0 )
+ return VLC_SUCCESS;
MuxBlock( p_mux, p_mux->pp_inputs[i_stream] );
}
{
if( p_stream->i_fourcc == VLC_CODEC_THEORA )
{
- /* FIXME, we assume only keyframes */
- op.granulepos = ( ( p_data->i_dts - p_sys->i_start_dts ) *
- p_input->p_fmt->video.i_frame_rate /
- p_input->p_fmt->video.i_frame_rate_base /
- INT64_C(1000000) ) << p_stream->i_keyframe_granule_shift;
+ p_stream->i_num_frames++;
+ if( p_data->i_flags & BLOCK_FLAG_TYPE_I )
+ {
+ p_stream->i_num_keyframes++;
+ p_stream->i_last_keyframe = p_stream->i_num_frames;
+ }
+
+ op.granulepos = (p_stream->i_last_keyframe << p_stream->i_keyframe_granule_shift )
+ | (p_stream->i_num_frames-p_stream->i_last_keyframe);
}
else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
{