mirror of
https://gitlab.xiph.org/xiph/icecast-server.git
synced 2024-06-16 06:15:24 +00:00
Add David Richard's webm support patch.
This is a self-contained ebml parser. It just looks for cluster boundaries and breaks the stream there. svn path=/icecast/branches/icecast-webm/; revision=18297
This commit is contained in:
giles
parent
f19eca5baa
commit
835408b7eb
1
AUTHORS
1
AUTHORS
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@ -4,3 +4,4 @@ oddsock <oddsock@xiph.org>
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Karl Heyes <karl@xiph.org>
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Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>
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Thomas B. "dm8tbr" Ruecker <thomas.rucker@tieto.com>
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David "oneman" Richards <kradradio@gmail.com>
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@ -10,13 +10,13 @@ noinst_HEADERS = admin.h cfgfile.h logging.h sighandler.h connection.h \
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global.h util.h slave.h source.h stats.h refbuf.h client.h \
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compat.h fserve.h xslt.h yp.h event.h md5.h \
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auth.h auth_htpasswd.h auth_url.h \
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format.h format_ogg.h format_mp3.h \
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format.h format_ogg.h format_mp3.h format_ebml.h\
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format_vorbis.h format_theora.h format_flac.h format_speex.h format_midi.h \
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format_kate.h format_skeleton.h
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icecast_SOURCES = cfgfile.c main.c logging.c sighandler.c connection.c global.c \
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util.c slave.c source.c stats.c refbuf.c client.c \
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xslt.c fserve.c event.c admin.c md5.c \
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format.c format_ogg.c format_mp3.c format_midi.c format_flac.c \
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format.c format_ogg.c format_mp3.c format_midi.c format_flac.c format_ebml.c\
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auth.c auth_htpasswd.c format_kate.c format_skeleton.c
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EXTRA_icecast_SOURCES = yp.c \
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auth_url.c \
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14
src/format.c
14
src/format.c
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@ -40,6 +40,7 @@
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#include "format_ogg.h"
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#include "format_mp3.h"
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#include "format_ebml.h"
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#include "logging.h"
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#include "stats.h"
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@ -64,6 +65,16 @@ format_type_t format_get_type (const char *contenttype)
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return FORMAT_TYPE_OGG;
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else if(strcmp(contenttype, "video/ogg") == 0)
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return FORMAT_TYPE_OGG;
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else if(strcmp(contenttype, "audio/webm") == 0)
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return FORMAT_TYPE_EBML;
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else if(strcmp(contenttype, "video/webm") == 0)
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return FORMAT_TYPE_EBML;
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else if(strcmp(contenttype, "audio/x-matroska") == 0)
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return FORMAT_TYPE_EBML;
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else if(strcmp(contenttype, "video/x-matroska") == 0)
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return FORMAT_TYPE_EBML;
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else if(strcmp(contenttype, "video/x-matroska-3d") == 0)
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return FORMAT_TYPE_EBML;
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else
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/* We default to the Generic format handler, which
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can handle many more formats than just mp3 */
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@ -78,6 +89,9 @@ int format_get_plugin(format_type_t type, source_t *source)
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case FORMAT_TYPE_OGG:
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ret = format_ogg_get_plugin (source);
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break;
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case FORMAT_TYPE_EBML:
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ret = format_ebml_get_plugin (source);
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break;
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case FORMAT_TYPE_GENERIC:
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ret = format_mp3_get_plugin (source);
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break;
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@ -29,6 +29,7 @@ typedef enum _format_type_tag
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{
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FORMAT_ERROR, /* No format, source not processable */
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FORMAT_TYPE_OGG,
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FORMAT_TYPE_EBML,
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FORMAT_TYPE_GENERIC
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} format_type_t;
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470
src/format_ebml.c
Normal file
470
src/format_ebml.c
Normal file
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@ -0,0 +1,470 @@
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/* Icecast
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*
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* This program is distributed under the GNU General Public License, version 2.
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* A copy of this license is included with this source.
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*
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* Copyright 2000-2012, Jack Moffitt <jack@xiph.org,
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* Michael Smith <msmith@xiph.org>,
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* oddsock <oddsock@xiph.org>,
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* Karl Heyes <karl@xiph.org>
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* and others (see AUTHORS for details).
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*/
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/* format_ebml.c
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*
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* format plugin for EBML
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "refbuf.h"
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#include "source.h"
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#include "client.h"
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#include "stats.h"
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#include "format.h"
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#include "format_ebml.h"
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#define CATMODULE "format-ebml"
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#include "logging.h"
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#define EBML_DEBUG 0
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#define EBML_HEADER_MAX_SIZE 131072
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#define EBML_SLICE_SIZE 4096
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typedef struct ebml_client_data_st ebml_client_data_t;
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struct ebml_client_data_st {
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refbuf_t *header;
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int header_pos;
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};
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struct ebml_st {
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char *cluster_id;
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int cluster_start;
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int position;
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unsigned char *input_buffer;
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unsigned char *buffer;
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int header_read;
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int header_size;
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int header_position;
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int header_read_position;
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unsigned char *header;
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};
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static void ebml_free_plugin (format_plugin_t *plugin);
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static refbuf_t *ebml_get_buffer (source_t *source);
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static int ebml_write_buf_to_client (client_t *client);
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static void ebml_write_buf_to_file (source_t *source, refbuf_t *refbuf);
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static int ebml_create_client_data (source_t *source, client_t *client);
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static void ebml_free_client_data (client_t *client);
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static ebml_t *ebml_create();
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static void ebml_destroy(ebml_t *ebml);
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static int ebml_read_space(ebml_t *ebml);
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static int ebml_read(ebml_t *ebml, char *buffer, int len);
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static int ebml_last_was_sync(ebml_t *ebml);
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static char *ebml_write_buffer(ebml_t *ebml, int len);
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static int ebml_wrote(ebml_t *ebml, int len);
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int format_ebml_get_plugin (source_t *source)
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{
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ebml_source_state_t *ebml_source_state = calloc(1, sizeof(ebml_source_state_t));
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format_plugin_t *plugin = calloc(1, sizeof(format_plugin_t));
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plugin->get_buffer = ebml_get_buffer;
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plugin->write_buf_to_client = ebml_write_buf_to_client;
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plugin->create_client_data = ebml_create_client_data;
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plugin->free_plugin = ebml_free_plugin;
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plugin->write_buf_to_file = ebml_write_buf_to_file;
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plugin->set_tag = NULL;
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plugin->apply_settings = NULL;
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plugin->contenttype = httpp_getvar (source->parser, "content-type");
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plugin->_state = ebml_source_state;
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source->format = plugin;
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ebml_source_state->ebml = ebml_create();
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return 0;
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}
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static void ebml_free_plugin (format_plugin_t *plugin)
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{
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ebml_source_state_t *ebml_source_state = plugin->_state;
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refbuf_release (ebml_source_state->header);
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ebml_destroy(ebml_source_state->ebml);
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free (ebml_source_state);
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free (plugin);
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}
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static int send_ebml_header (client_t *client)
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{
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ebml_client_data_t *ebml_client_data = client->format_data;
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int len = EBML_SLICE_SIZE;
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int ret;
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if (ebml_client_data->header->len - ebml_client_data->header_pos < len)
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{
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len = ebml_client_data->header->len - ebml_client_data->header_pos;
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}
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ret = client_send_bytes (client,
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ebml_client_data->header->data + ebml_client_data->header_pos,
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len);
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if (ret > 0)
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{
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ebml_client_data->header_pos += ret;
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}
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return ret;
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}
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static int ebml_write_buf_to_client (client_t *client)
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{
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ebml_client_data_t *ebml_client_data = client->format_data;
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if (ebml_client_data->header_pos != ebml_client_data->header->len)
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{
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return send_ebml_header (client);
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}
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else
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{
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client->write_to_client = format_generic_write_to_client;
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return client->write_to_client(client);
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}
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}
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static refbuf_t *ebml_get_buffer (source_t *source)
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{
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ebml_source_state_t *ebml_source_state = source->format->_state;
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format_plugin_t *format = source->format;
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char *data = NULL;
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int bytes = 0;
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refbuf_t *refbuf;
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int ret;
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while (1)
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{
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if ((bytes = ebml_read_space(ebml_source_state->ebml)) > 0)
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{
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refbuf = refbuf_new(bytes);
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ebml_read(ebml_source_state->ebml, refbuf->data, bytes);
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if (ebml_source_state->header == NULL)
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{
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ebml_source_state->header = refbuf;
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continue;
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}
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if (ebml_last_was_sync(ebml_source_state->ebml))
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{
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refbuf->sync_point = 1;
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}
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return refbuf;
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}
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else
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{
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data = ebml_write_buffer(ebml_source_state->ebml, EBML_SLICE_SIZE);
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bytes = client_read_bytes (source->client, data, EBML_SLICE_SIZE);
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if (bytes <= 0)
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{
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ebml_wrote (ebml_source_state->ebml, 0);
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return NULL;
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}
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format->read_bytes += bytes;
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ret = ebml_wrote (ebml_source_state->ebml, bytes);
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if (ret != bytes) {
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ERROR0 ("Problem processing stream");
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source->running = 0;
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return NULL;
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}
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}
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}
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}
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static int ebml_create_client_data (source_t *source, client_t *client)
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{
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ebml_client_data_t *ebml_client_data = calloc(1, sizeof(ebml_client_data_t));
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ebml_source_state_t *ebml_source_state = source->format->_state;
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int ret = -1;
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if ((ebml_client_data) && (ebml_source_state->header))
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{
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ebml_client_data->header = ebml_source_state->header;
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refbuf_addref (ebml_client_data->header);
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client->format_data = ebml_client_data;
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client->free_client_data = ebml_free_client_data;
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ret = 0;
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}
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return ret;
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}
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static void ebml_free_client_data (client_t *client)
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{
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ebml_client_data_t *ebml_client_data = client->format_data;
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refbuf_release (ebml_client_data->header);
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free (client->format_data);
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client->format_data = NULL;
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}
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static void ebml_write_buf_to_file_fail (source_t *source)
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{
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WARN0 ("Write to dump file failed, disabling");
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fclose (source->dumpfile);
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source->dumpfile = NULL;
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}
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static void ebml_write_buf_to_file (source_t *source, refbuf_t *refbuf)
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{
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ebml_source_state_t *ebml_source_state = source->format->_state;
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if (ebml_source_state->file_headers_written == 0)
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{
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if (fwrite (ebml_source_state->header->data, 1,
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ebml_source_state->header->len,
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source->dumpfile) != ebml_source_state->header->len)
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ebml_write_buf_to_file_fail(source);
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else
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ebml_source_state->file_headers_written = 1;
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}
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if (fwrite (refbuf->data, 1, refbuf->len, source->dumpfile) != refbuf->len)
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{
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ebml_write_buf_to_file_fail(source);
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}
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}
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/* internal ebml parsing */
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static void ebml_destroy(ebml_t *ebml)
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{
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free(ebml->header);
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free(ebml->input_buffer);
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free(ebml->buffer);
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free(ebml);
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}
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static ebml_t *ebml_create()
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{
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ebml_t *ebml = calloc(1, sizeof(ebml_t));
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ebml->header = calloc(1, EBML_HEADER_MAX_SIZE);
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ebml->buffer = calloc(1, EBML_SLICE_SIZE * 4);
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ebml->input_buffer = calloc(1, EBML_SLICE_SIZE);
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ebml->cluster_id = "\x1F\x43\xB6\x75";
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ebml->cluster_start = -2;
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return ebml;
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}
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static int ebml_read_space(ebml_t *ebml)
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{
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int read_space;
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if (ebml->header_read == 1)
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{
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if (ebml->cluster_start > 0)
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read_space = ebml->cluster_start;
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else
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read_space = ebml->position - 4;
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return read_space;
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}
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else
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{
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if (ebml->header_size != 0)
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return ebml->header_size;
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else
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return 0;
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}
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}
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static int ebml_read(ebml_t *ebml, char *buffer, int len)
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{
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int read_space;
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int to_read;
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if (len < 1)
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return 0;
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if (ebml->header_read == 1)
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{
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if (ebml->cluster_start > 0)
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read_space = ebml->cluster_start;
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else
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read_space = ebml->position - 4;
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if (read_space < 1)
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return 0;
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if (read_space >= len )
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to_read = len;
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else
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to_read = read_space;
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memcpy(buffer, ebml->buffer, to_read);
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memmove(ebml->buffer, ebml->buffer + to_read, ebml->position - to_read);
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ebml->position -= to_read;
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if (ebml->cluster_start > 0)
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ebml->cluster_start -= to_read;
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}
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else
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{
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if (ebml->header_size != 0)
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{
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read_space = ebml->header_size - ebml->header_read_position;
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if (read_space >= len)
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to_read = len;
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else
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to_read = read_space;
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memcpy(buffer, ebml->header, to_read);
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ebml->header_read_position += to_read;
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if (ebml->header_read_position == ebml->header_size)
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ebml->header_read = 1;
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}
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else
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{
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return 0;
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}
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}
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return to_read;
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}
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static int ebml_last_was_sync(ebml_t *ebml)
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{
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if (ebml->cluster_start == 0)
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{
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ebml->cluster_start -= 1;
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return 0;
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}
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if (ebml->cluster_start == -1)
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{
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ebml->cluster_start -= 1;
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return 1;
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}
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return 0;
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}
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static char *ebml_write_buffer(ebml_t *ebml, int len)
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{
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return (char *)ebml->input_buffer;
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}
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static int ebml_wrote(ebml_t *ebml, int len)
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{
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int b;
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if (ebml->header_size == 0)
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{
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if ((ebml->header_position + len) > EBML_HEADER_MAX_SIZE)
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{
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ERROR0("EBML Header too large, failing");
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return -1;
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}
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if (EBML_DEBUG)
|
||||
{
|
||||
printf("EBML: Adding to header, ofset is %d size is %d adding %d\n",
|
||||
ebml->header_size, ebml->header_position, len);
|
||||
}
|
||||
|
||||
memcpy(ebml->header + ebml->header_position, ebml->input_buffer, len);
|
||||
ebml->header_position += len;
|
||||
}
|
||||
else
|
||||
{
|
||||
memcpy(ebml->buffer + ebml->position, ebml->input_buffer, len);
|
||||
}
|
||||
|
||||
for (b = 0; b < len - 4; b++)
|
||||
{
|
||||
if (!memcmp(ebml->input_buffer + b, ebml->cluster_id, 4))
|
||||
{
|
||||
if (EBML_DEBUG)
|
||||
{
|
||||
printf("EBML: found cluster\n");
|
||||
}
|
||||
|
||||
if (ebml->header_size == 0)
|
||||
{
|
||||
ebml->header_size = ebml->header_position - len + b;
|
||||
memcpy(ebml->buffer, ebml->input_buffer + b, len - b);
|
||||
ebml->position = len - b;
|
||||
ebml->cluster_start = -1;
|
||||
return len;
|
||||
}
|
||||
else
|
||||
{
|
||||
ebml->cluster_start = ebml->position + b;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ebml->position += len;
|
||||
|
||||
return len;
|
||||
|
||||
}
|
||||
36
src/format_ebml.h
Normal file
36
src/format_ebml.h
Normal file
|
|
@ -0,0 +1,36 @@
|
|||
/* Icecast
|
||||
*
|
||||
* This program is distributed under the GNU General Public License, version 2.
|
||||
* A copy of this license is included with this source.
|
||||
*
|
||||
* Copyright 2000-2012, Jack Moffitt <jack@xiph.org,
|
||||
* Michael Smith <msmith@xiph.org>,
|
||||
* oddsock <oddsock@xiph.org>,
|
||||
* Karl Heyes <karl@xiph.org>
|
||||
* and others (see AUTHORS for details).
|
||||
*/
|
||||
|
||||
/* format_ebml.h
|
||||
**
|
||||
** ebml format plugin header
|
||||
**
|
||||
*/
|
||||
#ifndef __FORMAT_EBML_H__
|
||||
#define __FORMAT_EBML_H__
|
||||
|
||||
#include "format.h"
|
||||
|
||||
typedef struct ebml_st ebml_t;
|
||||
typedef struct ebml_source_state_st ebml_source_state_t;
|
||||
|
||||
struct ebml_source_state_st {
|
||||
|
||||
ebml_t *ebml;
|
||||
refbuf_t *header;
|
||||
int file_headers_written;
|
||||
|
||||
};
|
||||
|
||||
int format_ebml_get_plugin (source_t *source);
|
||||
|
||||
#endif /* __FORMAT_EBML_H__ */
|
||||
Loading…
Reference in New Issue
Block a user