{
int i_stream_id;
int i_stream_type;
+ int i_max_buff_size; /* used in system header */
/* Language is iso639-2T */
uint8_t lang[3];
int i_pes_count;
int i_system_header;
int i_dts_delay;
-
+ int i_rate_bound; /* units of 50 bytes/second */
+
int64_t i_instant_bitrate;
int64_t i_instant_size;
int64_t i_instant_dts;
p_sys->i_instant_bitrate = 0;
p_sys->i_instant_size = 0;
p_sys->i_instant_dts = 0;
-
+ p_sys->i_rate_bound = 0;
p_sys->b_mpeg2 = !(p_mux->psz_mux && !strcmp( p_mux->psz_mux, "mpeg1" ));
var_Get( p_mux, SOUT_CFG_PREFIX "dts-delay", &val );
{
sout_mux_sys_t *p_sys = p_mux->p_sys;
ps_stream_t *p_stream;
+
msg_Dbg( p_mux, "adding input codec=%4.4s",
(char*)&p_input->p_fmt->i_codec );
if( p_input->p_fmt->i_cat == AUDIO_ES )
{
p_sys->i_audio_bound++;
+ p_stream->i_max_buff_size = 4 * 1024;
}
else if( p_input->p_fmt->i_cat == VIDEO_ES )
{
p_sys->i_video_bound++;
+ p_stream->i_max_buff_size = 400 * 1024; /* FIXME -- VCD uses 46, SVCD
+ uses 230, ffmpeg has 230 with a note that it is small */
+ }
+ else
+ { /* FIXME -- what's valid for not audio or video? */
+ p_stream->i_max_buff_size = 4 * 1024;
}
/* Try to set a sensible default value for the instant bitrate */
p_sys->i_instant_bitrate += p_input->p_fmt->i_bitrate + 1000/* overhead */;
+ /* FIXME -- spec requires an upper limit rate boundary in the system header;
+ our codecs are VBR; using 2x nominal rate, convert to 50 bytes/sec */
+ p_sys->i_rate_bound += p_input->p_fmt->i_bitrate * 2 / (8 * 50);
p_sys->i_psm_version++;
p_stream->lang[0] = p_stream->lang[1] = p_stream->lang[2] = 0;
p_stream->lang[0], p_stream->lang[1], p_stream->lang[2] );
}
}
-
return VLC_SUCCESS;
error:
/* Try to set a sensible default value for the instant bitrate */
p_sys->i_instant_bitrate -= (p_input->p_fmt->i_bitrate + 1000);
+ /* rate_bound is in units of 50 bytes/second */
+ p_sys->i_rate_bound -= (p_input->p_fmt->i_bitrate * 2)/(8 * 50);
p_sys->i_psm_version++;
block_t *p_hdr;
bits_buffer_t bits;
vlc_bool_t b_private;
- int i_mux_rate;
+ int i_rate_bound;
int i_nb_private, i_nb_stream;
int i;
p_hdr = block_New( p_mux, 12 + i_nb_stream * 3 );
p_hdr->i_dts = p_hdr->i_pts = i_dts;
- /* The spec specifies that the mux rate must be rounded upwards */
- i_mux_rate = (p_sys->i_instant_bitrate + 8 * 50 - 1 ) / (8 * 50);
+ /* The spec specifies that the reported rate_bound must be upper limit */
+ i_rate_bound = (p_sys->i_rate_bound);
bits_initwrite( &bits, 12 + i_nb_stream * 3, p_hdr->p_buffer );
bits_write( &bits, 32, 0x01bb );
bits_write( &bits, 16, 12 - 6 + i_nb_stream * 3 );
bits_write( &bits, 1, 1 ); // marker bit
- bits_write( &bits, 22, i_mux_rate); // FIXME rate bound
+ bits_write( &bits, 22, i_rate_bound);
bits_write( &bits, 1, 1 ); // marker bit
bits_write( &bits, 6, p_sys->i_audio_bound );
if( p_input->p_fmt->i_cat == AUDIO_ES )
{
bits_write( &bits, 1, 0 );
- bits_write( &bits, 13, /* stream->max_buffer_size */ 0 / 128 );
+ bits_write( &bits, 13, p_stream->i_max_buff_size / 128 );
}
else if( p_input->p_fmt->i_cat == VIDEO_ES )
{
bits_write( &bits, 1, 1 );
- bits_write( &bits, 13, /* stream->max_buffer_size */ 0 / 1024);
+ bits_write( &bits, 13, p_stream->i_max_buff_size / 1024);
}
else
{
- /* FIXME */
+ /* FIXME -- the scale of 0 means do a /128 */
bits_write( &bits, 1, 0 );
- bits_write( &bits, 13, /* stream->max_buffer_size */ 0 );
+ bits_write( &bits, 13, p_stream->i_max_buff_size / 128 );
}
}