/*****************************************************************************
* rtpfmt.c: RTP payload formats
*****************************************************************************
- * Copyright (C) 2003-2004 the VideoLAN team
+ * Copyright (C) 2003-2004 VLC authors and VideoLAN
* Copyright © 2007 Rémi Denis-Courmont
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
#include <vlc_common.h>
#include <vlc_sout.h>
#include <vlc_block.h>
+#include <vlc_strings.h>
#include "rtp.h"
+#include "../demux/xiph.h"
+
+#include <assert.h>
+
+static int rtp_packetize_mpa (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_mpv (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_ac3 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_split(sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_swab (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_mp4a (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_mp4a_latm (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_h263 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_h264 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_amr (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_spx (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_t140 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_g726_16 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_g726_24 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_g726_32 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_g726_40 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_xiph (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_vp8 (sout_stream_id_sys_t *, block_t *);
+static int rtp_packetize_jpeg (sout_stream_id_sys_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;
+ if (xiph_SplitHeaders(packet_size, packet, &packet_count,
+ i_extra, p_extra))
+ return VLC_EGENERIC;;
+ if (packet_count < 3)
+ return VLC_EGENERIC;;
+
+ if (theora_pixel_fmt != NULL)
+ {
+ if (packet_size[0] < 42)
+ return VLC_EGENERIC;
+ *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)
+ return VLC_ENOMEM;
+
+ 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];
+ }
+
+ return VLC_SUCCESS;
+}
+
+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 )
+{
+ static const char hex[16] = "0123456789abcdef";
+
+ for( int i = 0; i < i_data; i++ )
+ {
+ s[2*i+0] = hex[(p_data[i]>>4)&0xf];
+ s[2*i+1] = hex[(p_data[i] )&0xf];
+ }
+ s[2*i_data] = '\0';
+}
+
+/* TODO: make this into something more clever than a big switch? */
+int rtp_get_fmt( vlc_object_t *obj, es_format_t *p_fmt, const char *mux,
+ rtp_format_t *rtp_fmt )
+{
+ assert( p_fmt != NULL || mux != NULL );
+
+ /* Dynamic payload type. Payload types are scoped to the RTP
+ * session, and we put each ES in its own session, so no risk of
+ * conflict. */
+ rtp_fmt->payload_type = 96;
+ rtp_fmt->cat = mux != NULL ? VIDEO_ES : p_fmt->i_cat;
+ if( rtp_fmt->cat == AUDIO_ES )
+ {
+ rtp_fmt->clock_rate = p_fmt->audio.i_rate;
+ rtp_fmt->channels = p_fmt->audio.i_channels;
+ }
+ else
+ rtp_fmt->clock_rate = 90000; /* most common case for video */
+ /* Stream bitrate in kbps */
+ rtp_fmt->bitrate = p_fmt != NULL ? p_fmt->i_bitrate/1000 : 0;
+ rtp_fmt->fmtp = NULL;
+
+ if( mux != NULL )
+ {
+ if( strncmp( mux, "ts", 2 ) == 0 )
+ {
+ rtp_fmt->payload_type = 33;
+ rtp_fmt->ptname = "MP2T";
+ }
+ else
+ rtp_fmt->ptname = "MP2P";
+ return VLC_SUCCESS;
+ }
+
+ switch( p_fmt->i_codec )
+ {
+ case VLC_CODEC_MULAW:
+ if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 )
+ rtp_fmt->payload_type = 0;
+ rtp_fmt->ptname = "PCMU";
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ break;
+ case VLC_CODEC_ALAW:
+ if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 )
+ rtp_fmt->payload_type = 8;
+ rtp_fmt->ptname = "PCMA";
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ break;
+ case VLC_CODEC_S16B:
+ case VLC_CODEC_S16L:
+ if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
+ {
+ rtp_fmt->payload_type = 11;
+ }
+ else if( p_fmt->audio.i_channels == 2 &&
+ p_fmt->audio.i_rate == 44100 )
+ {
+ rtp_fmt->payload_type = 10;
+ }
+ rtp_fmt->ptname = "L16";
+ if( p_fmt->i_codec == VLC_CODEC_S16B )
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ else
+ rtp_fmt->pf_packetize = rtp_packetize_swab;
+ break;
+ case VLC_CODEC_U8:
+ 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->clock_rate = 90000; /* not 44100 */
+ rtp_fmt->pf_packetize = rtp_packetize_mpa;
+ break;
+ case VLC_CODEC_MPGV:
+ rtp_fmt->payload_type = 32;
+ rtp_fmt->ptname = "MPV";
+ rtp_fmt->pf_packetize = rtp_packetize_mpv;
+ break;
+ case VLC_CODEC_ADPCM_G726:
+ switch( p_fmt->i_bitrate / 1000 )
+ {
+ case 16:
+ rtp_fmt->ptname = "G726-16";
+ rtp_fmt->pf_packetize = rtp_packetize_g726_16;
+ break;
+ case 24:
+ rtp_fmt->ptname = "G726-24";
+ rtp_fmt->pf_packetize = rtp_packetize_g726_24;
+ break;
+ case 32:
+ rtp_fmt->ptname = "G726-32";
+ rtp_fmt->pf_packetize = rtp_packetize_g726_32;
+ break;
+ case 40:
+ rtp_fmt->ptname = "G726-40";
+ rtp_fmt->pf_packetize = rtp_packetize_g726_40;
+ break;
+ default:
+ msg_Err( obj, "cannot add this stream (unsupported "
+ "G.726 bit rate: %u)", p_fmt->i_bitrate );
+ return VLC_EGENERIC;
+ }
+ break;
+ case VLC_CODEC_A52:
+ rtp_fmt->ptname = "ac3";
+ rtp_fmt->pf_packetize = rtp_packetize_ac3;
+ break;
+ case VLC_CODEC_H263:
+ rtp_fmt->ptname = "H263-1998";
+ rtp_fmt->pf_packetize = rtp_packetize_h263;
+ break;
+ case VLC_CODEC_H264:
+ rtp_fmt->ptname = "H264";
+ rtp_fmt->pf_packetize = rtp_packetize_h264;
+ rtp_fmt->fmtp = NULL;
+
+ if( p_fmt->i_extra > 0 )
+ {
+ uint8_t *p_buffer = p_fmt->p_extra;
+ int i_buffer = p_fmt->i_extra;
+ char *p_64_sps = NULL;
+ char *p_64_pps = NULL;
+ char hexa[6+1];
+
+ while( i_buffer > 4 )
+ {
+ int i_offset = 0;
+ int i_size = 0;
+
+ while( p_buffer[0] != 0 || p_buffer[1] != 0 ||
+ p_buffer[2] != 1 )
+ {
+ p_buffer++;
+ i_buffer--;
+ if( i_buffer == 0 ) break;
+ }
+
+ if( i_buffer < 4 || memcmp(p_buffer, "\x00\x00\x01", 3 ) )
+ {
+ msg_Dbg( obj, "No startcode found..");
+ break;
+ }
+ p_buffer += 3;
+ i_buffer -= 3;
+
+ const int i_nal_type = p_buffer[0]&0x1f;
+
+ msg_Dbg( obj, "we found a startcode for NAL with TYPE:%d", i_nal_type );
+
+ i_size = i_buffer;
+ for( i_offset = 0; i_offset+2 < i_buffer ; i_offset++)
+ {
+ if( !memcmp(p_buffer + i_offset, "\x00\x00\x01", 3 ) )
+ {
+ /* we found another startcode */
+ while( i_offset > 0 && 0 == p_buffer[ i_offset - 1 ] )
+ i_offset--;
+ i_size = i_offset;
+ break;
+ }
+ }
-int
-rtp_packetize_h264_nal( sout_stream_id_t *id,
+ if( i_size == 0 )
+ {
+ msg_Dbg( obj, "No-info found in nal ");
+ continue;
+ }
+
+ if( i_nal_type == 7 )
+ {
+ free( p_64_sps );
+ p_64_sps = vlc_b64_encode_binary( p_buffer, i_size );
+ /* XXX: nothing ensures that i_size >= 4 ?? */
+ sprintf_hexa( hexa, &p_buffer[1], 3 );
+ }
+ else if( i_nal_type == 8 )
+ {
+ free( p_64_pps );
+ p_64_pps = vlc_b64_encode_binary( p_buffer, i_size );
+ }
+ i_buffer -= i_size;
+ p_buffer += i_size;
+ }
+ /* */
+ if( p_64_sps && p_64_pps &&
+ ( asprintf( &rtp_fmt->fmtp,
+ "packetization-mode=1;profile-level-id=%s;"
+ "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
+ p_64_pps ) == -1 ) )
+ rtp_fmt->fmtp = NULL;
+ free( p_64_sps );
+ free( p_64_pps );
+ }
+ if( rtp_fmt->fmtp == NULL )
+ rtp_fmt->fmtp = strdup( "packetization-mode=1" );
+ break;
+
+ case VLC_CODEC_MP4V:
+ {
+ rtp_fmt->ptname = "MP4V-ES";
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ if( p_fmt->i_extra > 0 )
+ {
+ char hexa[2*p_fmt->i_extra +1];
+ sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
+ if( asprintf( &rtp_fmt->fmtp,
+ "profile-level-id=3; config=%s;", hexa ) == -1 )
+ rtp_fmt->fmtp = NULL;
+ }
+ break;
+ }
+ case VLC_CODEC_MP4A:
+ {
+ if( ! var_InheritBool( obj, "sout-rtp-mp4a-latm" ) )
+ {
+ char hexa[2*p_fmt->i_extra +1];
+
+ rtp_fmt->ptname = "mpeg4-generic";
+ rtp_fmt->pf_packetize = rtp_packetize_mp4a;
+ sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
+ if( asprintf( &rtp_fmt->fmtp,
+ "streamtype=5; profile-level-id=15; "
+ "mode=AAC-hbr; config=%s; SizeLength=13; "
+ "IndexLength=3; IndexDeltaLength=3; Profile=1;",
+ hexa ) == -1 )
+ rtp_fmt->fmtp = NULL;
+ }
+ else
+ {
+ char hexa[13];
+ int i;
+ unsigned char config[6];
+ unsigned int aacsrates[15] = {
+ 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
+ 16000, 12000, 11025, 8000, 7350, 0, 0 };
+
+ for( i = 0; i < 15; i++ )
+ if( p_fmt->audio.i_rate == aacsrates[i] )
+ break;
+
+ config[0]=0x40;
+ config[1]=0;
+ config[2]=0x20|i;
+ config[3]=p_fmt->audio.i_channels<<4;
+ config[4]=0x3f;
+ config[5]=0xc0;
+
+ rtp_fmt->ptname = "MP4A-LATM";
+ rtp_fmt->pf_packetize = rtp_packetize_mp4a_latm;
+ sprintf_hexa( hexa, config, 6 );
+ if( asprintf( &rtp_fmt->fmtp, "profile-level-id=15; "
+ "object=2; cpresent=0; config=%s", hexa ) == -1 )
+ rtp_fmt->fmtp = NULL;
+ }
+ break;
+ }
+ case VLC_CODEC_AMR_NB:
+ rtp_fmt->ptname = "AMR";
+ rtp_fmt->fmtp = strdup( "octet-align=1" );
+ rtp_fmt->pf_packetize = rtp_packetize_amr;
+ break;
+ case VLC_CODEC_AMR_WB:
+ rtp_fmt->ptname = "AMR-WB";
+ rtp_fmt->fmtp = strdup( "octet-align=1" );
+ rtp_fmt->pf_packetize = rtp_packetize_amr;
+ break;
+ case VLC_CODEC_SPEEX:
+ 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;
+ rtp_fmt->pf_packetize = rtp_packetize_t140;
+ break;
+ case VLC_CODEC_GSM:
+ rtp_fmt->payload_type = 3;
+ rtp_fmt->ptname = "GSM";
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ break;
+ case VLC_CODEC_OPUS:
+ if (p_fmt->audio.i_channels > 2)
+ {
+ msg_Err( obj, "Multistream opus not supported in RTP"
+ " (having %d channels input)",
+ p_fmt->audio.i_channels );
+ return VLC_EGENERIC;
+ }
+ rtp_fmt->ptname = "opus";
+ rtp_fmt->pf_packetize = rtp_packetize_split;
+ rtp_fmt->clock_rate = 48000;
+ rtp_fmt->channels = 2;
+ if (p_fmt->audio.i_channels == 2)
+ rtp_fmt->fmtp = strdup( "sprop-stereo=1" );
+ break;
+ case VLC_CODEC_VP8:
+ rtp_fmt->ptname = "VP8";
+ rtp_fmt->pf_packetize = rtp_packetize_vp8;
+ break;
+ case VLC_CODEC_MJPG:
+ case VLC_CODEC_JPEG:
+ rtp_fmt->ptname = "JPEG";
+ rtp_fmt->payload_type = 26;
+ rtp_fmt->pf_packetize = rtp_packetize_jpeg;
+ break;
+
+ default:
+ msg_Err( obj, "cannot add this stream (unsupported "
+ "codec: %4.4s)", (char*)&p_fmt->i_codec );
+ return VLC_EGENERIC;
+ }
+
+ return VLC_SUCCESS;
+}
+
+
+static int
+rtp_packetize_h264_nal( sout_stream_id_sys_t *id,
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_mpa( sout_stream_id_t *id,
- block_t *in )
+int rtp_packetize_xiph_config( sout_stream_id_sys_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_sys_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_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 4; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
/* rtp common header */
rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
/* mbz set to 0 */
- out->p_buffer[12] = 0;
- out->p_buffer[13] = 0;
+ SetWBE( out->p_buffer + 12, 0 );
/* fragment offset in the current frame */
- out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
- out->p_buffer[15] = ( (i*i_max) )&0xff;
+ SetWBE( out->p_buffer + 14, i * i_max );
memcpy( &out->p_buffer[16], p_data, i_payload );
out->i_buffer = 16 + i_payload;
}
/* rfc2250 */
-int rtp_packetize_mpv( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_mpv( sout_stream_id_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 4; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
{
int i_payload = __MIN( i_max, i_data );
block_t *out = block_Alloc( 16 + i_payload );
+ /* MBZ:5 T:1 TR:10 AN:1 N:1 S:1 B:1 E:1 P:3 FBV:1 BFC:3 FFV:1 FFC:3 */
uint32_t h = ( i_temporal_ref << 16 )|
( b_sequence_start << 13 )|
( b_start_slice << 12 )|
/* rtp common header */
rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
- in->i_pts > 0 ? in->i_pts : in->i_dts );
+ in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts );
- /* MBZ:5 T:1 TR:10 AN:1 N:1 S:1 B:1 E:1 P:3 FBV:1 BFC:3 FFV:1 FFC:3 */
- out->p_buffer[12] = ( h >> 24 )&0xff;
- out->p_buffer[13] = ( h >> 16 )&0xff;
- out->p_buffer[14] = ( h >> 8 )&0xff;
- out->p_buffer[15] = ( h )&0xff;
+ SetDWBE( out->p_buffer + 12, h );
memcpy( &out->p_buffer[16], p_data, i_payload );
return VLC_SUCCESS;
}
-int rtp_packetize_ac3( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_ac3( sout_stream_id_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 2; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
return VLC_SUCCESS;
}
-int rtp_packetize_split( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_split( sout_stream_id_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id); /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
/* rtp common header */
rtp_packetize_common( id, out, (i == i_count - 1),
- (in->i_pts > 0 ? in->i_pts : in->i_dts) );
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
memcpy( &out->p_buffer[12], p_data, i_payload );
out->i_buffer = 12 + i_payload;
return VLC_SUCCESS;
}
+/* split and convert from little endian to network byte order */
+static int rtp_packetize_swab( sout_stream_id_sys_t *id, block_t *in )
+{
+ int i_max = rtp_mtu (id); /* 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;
+ int i;
+
+ for( i = 0; i < i_count; i++ )
+ {
+ int i_payload = __MIN( i_max, i_data );
+ block_t *out = block_Alloc( 12 + i_payload );
+
+ /* rtp common header */
+ rtp_packetize_common( id, out, (i == i_count - 1),
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
+ swab( p_data, out->p_buffer + 12, i_payload );
+
+ out->i_buffer = 12 + 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;
+}
+
/* rfc3016 */
-int rtp_packetize_mp4a_latm( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_mp4a_latm( sout_stream_id_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 2; /* payload max in one packet */
int latmhdrsize = in->i_buffer / 0xff + 1;
/* rtp common header */
rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
- (in->i_pts > 0 ? in->i_pts : in->i_dts) );
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
if( i == 0 )
{
return VLC_SUCCESS;
}
-int rtp_packetize_mp4a( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_mp4a( sout_stream_id_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 4; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
/* rtp common header */
rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
- (in->i_pts > 0 ? in->i_pts : in->i_dts) );
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
/* AU headers */
/* AU headers length (bits) */
out->p_buffer[12] = 0;
out->p_buffer[13] = 2*8;
/* for each AU length 13 bits + idx 3bits, */
- out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
- out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
+ SetWBE( out->p_buffer + 14, (in->i_buffer << 3) | 0 );
memcpy( &out->p_buffer[16], p_data, i_payload );
/* rfc2429 */
#define RTP_H263_HEADER_SIZE (2) // plen = 0
#define RTP_H263_PAYLOAD_START (14) // plen = 0
-int rtp_packetize_h263( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_h263( sout_stream_id_sys_t *id, block_t *in )
{
uint8_t *p_data = in->p_buffer;
int i_data = in->i_buffer;
/* rtp common header */
//b_m_bit = 1; // always contains end of frame
rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
- in->i_pts > 0 ? in->i_pts : in->i_dts );
+ in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts );
/* h263 header */
- out->p_buffer[12] = ( h >> 8 )&0xff;
- out->p_buffer[13] = ( h )&0xff;
+ SetWBE( out->p_buffer + 12, h );
memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
}
/* rfc3984 */
-int
-rtp_packetize_h264_nal( sout_stream_id_t *id,
+static int
+rtp_packetize_h264_nal( sout_stream_id_sys_t *id,
const uint8_t *p_data, int i_data, int64_t i_pts,
int64_t i_dts, bool b_last, int64_t i_length )
{
out->i_length = i_length / i_count;
/* */
- rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
+ rtp_packetize_common( id, out, (b_last && i_payload == i_data),
+ i_pts );
out->i_buffer = 14 + i_payload;
/* FU indicator */
return VLC_SUCCESS;
}
-int rtp_packetize_h264( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_h264( sout_stream_id_sys_t *id, block_t *in )
{
const uint8_t *p_buffer = in->p_buffer;
int i_buffer = in->i_buffer;
}
/* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
rtp_packetize_h264_nal( id, p_buffer, i_size,
- (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
- (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts), in->i_dts,
+ (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
i_buffer -= i_skip;
p_buffer += i_skip;
return VLC_SUCCESS;
}
-int rtp_packetize_amr( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_amr( sout_stream_id_sys_t *id, block_t *in )
{
int i_max = rtp_mtu (id) - 2; /* payload max in one packet */
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
/* rtp common header */
rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
- (in->i_pts > 0 ? in->i_pts : in->i_dts) );
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
/* Payload header */
out->p_buffer[12] = 0xF0; /* CMR */
out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
return VLC_SUCCESS;
}
-int rtp_packetize_t140( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_t140( sout_stream_id_sys_t *id, block_t *in )
{
const size_t i_max = rtp_mtu (id);
const uint8_t *p_data = in->p_buffer;
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 );
}
-int rtp_packetize_spx( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_spx( sout_stream_id_sys_t *id, block_t *in )
{
uint8_t *p_buffer = in->p_buffer;
int i_data_size, i_payload_size, i_payload_padding;
}
/* Add the RTP header to our p_output buffer. */
- rtp_packetize_common( id, p_out, 0, (in->i_pts > 0 ? in->i_pts : in->i_dts) );
+ rtp_packetize_common( id, p_out, 0,
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
/* Copy the Speex payload to the p_output buffer */
memcpy( &p_out->p_buffer[12], p_buffer, i_data_size );
return VLC_SUCCESS;
}
-static int rtp_packetize_g726( sout_stream_id_t *id, block_t *in, int i_pad )
+static int rtp_packetize_g726( sout_stream_id_sys_t *id, block_t *in, int i_pad )
{
int i_max = (rtp_mtu( id )- 12 + i_pad - 1) & ~i_pad;
int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
while( i_data > 0 )
{
int i_payload = __MIN( i_max, i_data );
- block_t *out = block_New( p_stream, 12 + i_payload );
+ block_t *out = block_Alloc( 12 + i_payload );
/* rtp common header */
rtp_packetize_common( id, out, 0,
- (in->i_pts > 0 ? in->i_pts : in->i_dts) );
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
memcpy( &out->p_buffer[12], p_data, i_payload );
return VLC_SUCCESS;
}
-int rtp_packetize_g726_16( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_g726_16( sout_stream_id_sys_t *id, block_t *in )
{
return rtp_packetize_g726( id, in, 4 );
}
-int rtp_packetize_g726_24( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_g726_24( sout_stream_id_sys_t *id, block_t *in )
{
return rtp_packetize_g726( id, in, 8 );
}
-int rtp_packetize_g726_32( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_g726_32( sout_stream_id_sys_t *id, block_t *in )
{
return rtp_packetize_g726( id, in, 2 );
}
-int rtp_packetize_g726_40( sout_stream_id_t *id, block_t *in )
+static int rtp_packetize_g726_40( sout_stream_id_sys_t *id, block_t *in )
{
return rtp_packetize_g726( id, in, 8 );
}
+
+#define RTP_VP8_HEADER_SIZE 1
+#define RTP_VP8_PAYLOAD_START (12 + RTP_VP8_HEADER_SIZE)
+
+static int rtp_packetize_vp8( sout_stream_id_sys_t *id, block_t *in )
+{
+ int i_max = rtp_mtu (id) - RTP_VP8_HEADER_SIZE;
+ int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
+
+ uint8_t *p_data = in->p_buffer;
+ int i_data = in->i_buffer;
+
+ if ( i_max <= 0 )
+ return VLC_EGENERIC;
+
+ for( int i = 0; i < i_count; i++ )
+ {
+ int i_payload = __MIN( i_max, i_data );
+ block_t *out = block_Alloc( RTP_VP8_PAYLOAD_START + i_payload );
+ if ( out == NULL )
+ return VLC_ENOMEM;
+
+ /* VP8 payload header */
+ /* All frames are marked as reference ones */
+ if (i == 0)
+ out->p_buffer[12] = 0x10; // partition start
+ else
+ out->p_buffer[12] = 0;
+
+ /* rtp common header */
+ rtp_packetize_common( id, out, (i == i_count - 1),
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
+ memcpy( &out->p_buffer[RTP_VP8_PAYLOAD_START], p_data, i_payload );
+
+ out->i_buffer = RTP_VP8_PAYLOAD_START + 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_jpeg( sout_stream_id_sys_t *id, block_t *in )
+{
+ uint8_t *p_data = in->p_buffer;
+ int i_data = in->i_buffer;
+ uint8_t *bufend = p_data + i_data;
+
+ const uint8_t *qtables = NULL;
+ int nb_qtables = 0;
+ int off = 0; // fragment offset in frame
+ int y_sampling_factor;
+ // type is set by pixel format (determined by y_sampling_factor):
+ // 0 for yuvj422p
+ // 1 for yuvj420p
+ // += 64 if DRI present
+ int type;
+ int w = 0; // Width in multiples of 8
+ int h = 0; // Height in multiples of 8
+ int restart_interval;
+ int dri_found = 0;
+
+ // Skip SOI
+ if (GetWBE(p_data) != 0xffd8)
+ return VLC_EGENERIC;
+ p_data += 2;
+ i_data -= 2;
+
+ /* parse the header to get necessary info */
+ int header_finished = 0;
+ while (!header_finished && p_data + 4 <= bufend) {
+ uint16_t marker = GetWBE(p_data);
+ uint8_t *section = p_data + 2;
+ int section_size = GetWBE(section);
+ uint8_t *section_body = p_data + 4;
+ if (section + section_size > bufend)
+ return VLC_EGENERIC;
+
+ assert((marker & 0xff00) == 0xff00);
+ switch (marker)
+ {
+ case 0xffdb /*DQT*/:
+ if (section_body[0])
+ {
+ // Only 8-bit precision is supported
+ return VLC_EGENERIC;
+ }
+
+ /* a quantization table is 64 bytes long */
+ nb_qtables = section_size / 65;
+ qtables = section_body;
+ break;
+ case 0xffc0 /*SOF0*/:
+ {
+ int height = GetWBE(§ion_body[1]);
+ int width = GetWBE(§ion_body[3]);
+ if (width > 2040 || height > 2040)
+ {
+ // larger than limit supported by RFC 2435
+ return VLC_EGENERIC;
+ }
+ // Round up by 8, divide by 8
+ w = ((width+7)&~7) >> 3;
+ h = ((height+7)&~7) >> 3;
+
+ // Get components sampling to determine type
+ // Y has component ID 1
+ // Possible configurations of sampling factors:
+ // Y - 0x22, Cb - 0x11, Cr - 0x11 => yuvj420p
+ // Y - 0x21, Cb - 0x11, Cr - 0x11 => yuvj422p
+
+ // Only 3 components are supported by RFC 2435
+ if (section_body[5] != 3) // Number of components
+ return VLC_EGENERIC;
+ for (int j = 0; j < 3; j++)
+ {
+ if (section_body[6 + j * 3] == 1 /* Y */)
+ {
+ y_sampling_factor = section_body[6 + j * 3 + 1];
+ }
+ else if (section_body[6 + j * 3 + 1] != 0x11)
+ {
+ // Sampling factor is unsupported by RFC 2435
+ return VLC_EGENERIC;
+ }
+ }
+ break;
+ }
+ case 0xffdd /*DRI*/:
+ restart_interval = GetWBE(section_body);
+ dri_found = 1;
+ break;
+ case 0xffda /*SOS*/:
+ /* SOS is last marker in the header */
+ header_finished = 1;
+ break;
+ }
+ // Step over marker, 16bit length and section body
+ p_data += 2 + section_size;
+ i_data -= 2 + section_size;
+ }
+ if (!header_finished)
+ return VLC_EGENERIC;
+ if (!w || !h)
+ return VLC_EGENERIC;
+
+ switch (y_sampling_factor)
+ {
+ case 0x22: // yuvj420p
+ type = 1;
+ break;
+ case 0x21: // yuvj422p
+ type = 0;
+ break;
+ default:
+ // Sampling format unsupported by RFC 2435
+ return VLC_EGENERIC;
+ }
+
+ if (dri_found)
+ type += 64;
+
+ while ( i_data )
+ {
+ int hdr_size = 8 + dri_found * 4;
+ if (off == 0 && nb_qtables)
+ hdr_size += 4 + 64 * nb_qtables;
+
+ int i_payload = __MIN( i_data, (int)(rtp_mtu (id) - hdr_size) );
+ if ( i_payload <= 0 )
+ return VLC_EGENERIC;
+
+ block_t *out = block_Alloc( 12 + hdr_size + i_payload );
+ if( out == NULL )
+ return VLC_ENOMEM;
+
+ uint8_t *p = out->p_buffer + 12;
+ /* set main header */
+ /* set type-specific=0, set offset in following 24 bits: */
+ SetDWBE(p, off & 0x00ffffff);
+ p += 4;
+ *p++ = type;
+ *p++ = 255; // Quant value
+ *p++ = w;
+ *p++ = h;
+
+ // Write restart_marker_hdr if needed
+ if (dri_found)
+ {
+ SetWBE(p, restart_interval);
+ p += 2;
+ // restart_count. Hardcoded same value as in gstreamer implementation
+ SetWBE(p, 0xffff);
+ p += 2;
+ }
+
+ if (off == 0 && nb_qtables)
+ {
+ /* set quantization tables header */
+ *p++ = 0;
+ *p++ = 0;
+ SetWBE (p, 64 * nb_qtables);
+ p += 2;
+ for (int i = 0; i < nb_qtables; i++)
+ {
+ memcpy (p, &qtables[65 * i + 1], 64);
+ p += 64;
+ }
+ }
+
+ /* rtp common header */
+ rtp_packetize_common( id, out, (i_payload == i_data),
+ (in->i_pts > VLC_TS_INVALID ? in->i_pts : in->i_dts) );
+ memcpy( p, p_data, i_payload );
+
+ out->i_buffer = 12 + hdr_size + i_payload;
+ out->i_dts = in->i_dts;
+ out->i_length = in->i_length;
+
+ rtp_packetize_send( id, out );
+
+ p_data += i_payload;
+ i_data -= i_payload;
+ off += i_payload;
+ }
+
+ return VLC_SUCCESS;
+}
projects / vlc / blobdiff