#include <vlc_strings.h>
#include "rtp.h"
+#include "../demux/xiph.h"
#include <assert.h>
static int rtp_packetize_g726_24 (sout_stream_id_t *, block_t *);
static int rtp_packetize_g726_32 (sout_stream_id_t *, block_t *);
static int rtp_packetize_g726_40 (sout_stream_id_t *, block_t *);
-static int rtp_packetize_vorbis (sout_stream_id_t *, block_t *);
+static int rtp_packetize_xiph (sout_stream_id_t *, block_t *);
+
+#define XIPH_IDENT (0)
+
+/* Helpers common to xiph codecs (vorbis and theora) */
+
+static int rtp_xiph_pack_headers(size_t room, void *p_extra, size_t i_extra,
+ uint8_t **p_buffer, size_t *i_buffer,
+ uint8_t *theora_pixel_fmt)
+{
+ unsigned packet_size[XIPH_MAX_HEADER_COUNT];
+ void *packet[XIPH_MAX_HEADER_COUNT];
+ unsigned packet_count;
+ int val = xiph_SplitHeaders(packet_size, packet, &packet_count,
+ i_extra, p_extra);
+ if (val != VLC_SUCCESS)
+ return val;
+ if (packet_count < 3)
+ {
+ val = VLC_EGENERIC;
+ goto free;
+ }
+
+ if (theora_pixel_fmt != NULL)
+ {
+ if (packet_size[0] < 42)
+ {
+ val = VLC_EGENERIC;
+ goto free;
+ }
+ *theora_pixel_fmt = (((uint8_t *)packet[0])[41] >> 3) & 0x03;
+ }
+
+ unsigned length_size[2] = { 0, 0 };
+ for (int i = 0; i < 2; i++)
+ {
+ unsigned size = packet_size[i];
+ while (size > 0)
+ {
+ length_size[i]++;
+ size >>= 7;
+ }
+ }
+
+ *i_buffer = room + 1 + length_size[0] + length_size[1]
+ + packet_size[0] + packet_size[1] + packet_size[2];
+ *p_buffer = malloc(*i_buffer);
+ if (*p_buffer == NULL)
+ {
+ val = VLC_ENOMEM;
+ goto free;
+ }
+
+ uint8_t *p = *p_buffer + room;
+ /* Number of headers */
+ *p++ = 2;
+
+ for (int i = 0; i < 2; i++)
+ {
+ unsigned size = length_size[i];
+ while (size > 0)
+ {
+ *p = (packet_size[i] >> (7 * (size - 1))) & 0x7f;
+ if (--size > 0)
+ *p |= 0x80;
+ p++;
+ }
+ }
+ for (int i = 0; i < 3; i++)
+ {
+ memcpy(p, packet[i], packet_size[i]);
+ p += packet_size[i];
+ }
+
+ val = VLC_SUCCESS;
+free:
+ for (unsigned i = 0; i < packet_count; i++)
+ free(packet[i]);
+
+ return val;
+}
+
+static char *rtp_xiph_b64_oob_config(void *p_extra, size_t i_extra,
+ uint8_t *theora_pixel_fmt)
+{
+ uint8_t *p_buffer;
+ size_t i_buffer;
+ if (rtp_xiph_pack_headers(9, p_extra, i_extra, &p_buffer, &i_buffer,
+ theora_pixel_fmt) != VLC_SUCCESS)
+ return NULL;
+
+ /* Number of packed headers */
+ SetDWBE(p_buffer, 1);
+ /* Ident */
+ uint32_t ident = XIPH_IDENT;
+ SetWBE(p_buffer + 4, ident >> 8);
+ p_buffer[6] = ident & 0xff;
+ /* Length field */
+ SetWBE(p_buffer + 7, i_buffer);
+
+ char *config = vlc_b64_encode_binary(p_buffer, i_buffer);
+ free(p_buffer);
+ return config;
+}
static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
{
rtp_fmt->ptname = "L8";
rtp_fmt->pf_packetize = rtp_packetize_split;
break;
+ case VLC_CODEC_S24B:
+ rtp_fmt->ptname = "L24";
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ break;
case VLC_CODEC_MPGA:
rtp_fmt->payload_type = 14;
rtp_fmt->ptname = "MPA";
rtp_fmt->ptname = "SPEEX";
rtp_fmt->pf_packetize = rtp_packetize_spx;
break;
+ case VLC_CODEC_VORBIS:
+ rtp_fmt->ptname = "vorbis";
+ rtp_fmt->pf_packetize = rtp_packetize_xiph;
+ if( p_fmt->i_extra > 0 )
+ {
+ rtp_fmt->fmtp = NULL;
+ char *config = rtp_xiph_b64_oob_config(p_fmt->p_extra,
+ p_fmt->i_extra, NULL);
+ if (config == NULL)
+ break;
+ if( asprintf( &rtp_fmt->fmtp,
+ "configuration=%s;", config ) == -1 )
+ rtp_fmt->fmtp = NULL;
+ free(config);
+ }
+ break;
+ case VLC_CODEC_THEORA:
+ rtp_fmt->ptname = "theora";
+ rtp_fmt->pf_packetize = rtp_packetize_xiph;
+ if( p_fmt->i_extra > 0 )
+ {
+ rtp_fmt->fmtp = NULL;
+ uint8_t pixel_fmt, c1, c2;
+ char *config = rtp_xiph_b64_oob_config(p_fmt->p_extra,
+ p_fmt->i_extra,
+ &pixel_fmt);
+ if (config == NULL)
+ break;
+
+ if (pixel_fmt == 1)
+ {
+ /* reserved */
+ free(config);
+ break;
+ }
+ switch (pixel_fmt)
+ {
+ case 0:
+ c1 = 2;
+ c2 = 0;
+ break;
+ case 2:
+ c1 = c2 = 2;
+ break;
+ case 3:
+ c1 = c2 = 4;
+ break;
+ default:
+ assert(0);
+ }
+
+ if( asprintf( &rtp_fmt->fmtp,
+ "sampling=YCbCr-4:%d:%d; width=%d; height=%d; "
+ "delivery-method=inline; configuration=%s; "
+ "delivery-method=in_band;", c1, c2,
+ p_fmt->video.i_width, p_fmt->video.i_height,
+ config ) == -1 )
+ rtp_fmt->fmtp = NULL;
+ free(config);
+ }
+ break;
case VLC_CODEC_ITU_T140:
rtp_fmt->ptname = "t140" ;
rtp_fmt->clock_rate = 1000;
const uint8_t *p_data, int i_data, int64_t i_pts,
int64_t i_dts, bool b_last, int64_t i_length );
+int rtp_packetize_xiph_config( sout_stream_id_t *id, const char *fmtp,
+ int64_t i_pts )
+{
+ if (fmtp == NULL)
+ return VLC_EGENERIC;
+
+ /* extract base64 configuration from fmtp */
+ char *start = strstr(fmtp, "configuration=");
+ assert(start != NULL);
+ start += sizeof("configuration=") - 1;
+ char *end = strchr(start, ';');
+ assert(end != NULL);
+ size_t len = end - start;
+ char b64[len + 1];
+ memcpy(b64, start, len);
+ b64[len] = '\0';
+
+ int i_max = rtp_mtu (id) - 6; /* payload max in one packet */
+
+ uint8_t *p_orig, *p_data;
+ int i_data;
+
+ i_data = vlc_b64_decode_binary(&p_orig, b64);
+ if (i_data == 0)
+ return VLC_EGENERIC;
+ assert(i_data > 9);
+ p_data = p_orig + 9;
+ i_data -= 9;
+
+ int i_count = ( i_data + i_max - 1 ) / i_max;
+
+ for( int i = 0; i < i_count; i++ )
+ {
+ int i_payload = __MIN( i_max, i_data );
+ block_t *out = block_Alloc( 18 + i_payload );
+
+ unsigned fragtype, numpkts;
+ if (i_count == 1)
+ {
+ fragtype = 0;
+ numpkts = 1;
+ }
+ else
+ {
+ numpkts = 0;
+ if (i == 0)
+ fragtype = 1;
+ else if (i == i_count - 1)
+ fragtype = 3;
+ else
+ fragtype = 2;
+ }
+ /* Ident:24, Fragment type:2, Vorbis/Theora Data Type:2, # of pkts:4 */
+ uint32_t header = ((XIPH_IDENT & 0xffffff) << 8) |
+ (fragtype << 6) | (1 << 4) | numpkts;
+
+ /* rtp common header */
+ rtp_packetize_common( id, out, 0, i_pts );
+
+ SetDWBE( out->p_buffer + 12, header);
+ SetWBE( out->p_buffer + 16, i_payload);
+ memcpy( &out->p_buffer[18], p_data, i_payload );
+
+ out->i_buffer = 18 + i_payload;
+ out->i_dts = i_pts;
+
+ rtp_packetize_send( id, out );
+
+ p_data += i_payload;
+ i_data -= i_payload;
+ }
+
+ free(p_orig);
+
+ return VLC_SUCCESS;
+}
+
+/* rfc5215 */
+static int rtp_packetize_xiph( sout_stream_id_t *id, block_t *in )
+{
+ int i_max = rtp_mtu (id) - 6; /* payload max in one packet */
+ int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
+
+ uint8_t *p_data = in->p_buffer;
+ int i_data = in->i_buffer;
+
+ for( int i = 0; i < i_count; i++ )
+ {
+ int i_payload = __MIN( i_max, i_data );
+ block_t *out = block_Alloc( 18 + i_payload );
+
+ unsigned fragtype, numpkts;
+ if (i_count == 1)
+ {
+ /* No fragmentation */
+ fragtype = 0;
+ numpkts = 1;
+ }
+ else
+ {
+ /* Fragmentation */
+ numpkts = 0;
+ if (i == 0)
+ fragtype = 1;
+ else if (i == i_count - 1)
+ fragtype = 3;
+ else
+ fragtype = 2;
+ }
+ /* Ident:24, Fragment type:2, Vorbis/Theora Data Type:2, # of pkts:4 */
+ uint32_t header = ((XIPH_IDENT & 0xffffff) << 8) |
+ (fragtype << 6) | (0 << 4) | numpkts;
+
+ /* rtp common header */
+ rtp_packetize_common( id, out, 0, in->i_pts);
+
+ SetDWBE( out->p_buffer + 12, header);
+ SetWBE( out->p_buffer + 16, i_payload);
+ memcpy( &out->p_buffer[18], p_data, i_payload );
+
+ out->i_buffer = 18 + i_payload;
+ out->i_dts = in->i_dts + i * in->i_length / i_count;
+ out->i_length = in->i_length / i_count;
+
+ rtp_packetize_send( id, out );
+
+ p_data += i_payload;
+ i_data -= i_payload;
+ }
+
+ return VLC_SUCCESS;
+}
+
static int rtp_packetize_mpa( sout_stream_id_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 4; /* payload max in one packet */
memcpy( out->p_buffer + 12, p_data, i_payload );
out->i_buffer = 12 + i_payload;
- out->i_dts = out->i_pts;
+ out->i_dts = in->i_pts;
out->i_length = 0;
rtp_packetize_send( id, out );
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