X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=vss.c;h=1be4cd15d1db262dd5f79a43b19e7bba09f2087a;hp=f1dbfb97fa45db3c79628887f0783301f218b4e9;hb=cd8aecdb81f2ffb1a6e34a866d6156f8c915a467;hpb=4cfbdce5e460934d4724cac63aa718ea6c7af199 diff --git a/vss.c b/vss.c index f1dbfb97..1be4cd15 100644 --- a/vss.c +++ b/vss.c @@ -1,100 +1,49 @@ /* - * Copyright (C) 1997-2007 Andre Noll + * Copyright (C) 1997-2008 Andre Noll * - * 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 - * (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. - * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Licensed under the GPL v2. For licencing details see COPYING. */ -/** \file vss.c the virtual streaming system +/** \file vss.c The virtual streaming system. * - * This contains the audio sending part of para_server which is independent of - * the current audio format, audio file selector and of the activated senders. + * This contains the audio streaming code of para_server which is independent + * of the current audio format, audio file selector and of the activated + * senders. */ -#include "server.h" +#include /* mmap */ #include /* gettimeofday */ -#include "server.cmdline.h" -#include "afs.h" +#include +#include + +#include "para.h" +#include "error.h" +#include "string.h" #include "afh.h" +#include "afs.h" +#include "server.h" +#include "net.h" +#include "server.cmdline.h" #include "vss.h" +#include "list.h" #include "send.h" -#include "error.h" -#include "string.h" +#include "ipc.h" #include "fd.h" -extern const char *status_item_list[]; - static struct timeval announce_tv; static struct timeval data_send_barrier; static struct timeval eof_barrier; static struct timeval autoplay_barrier; extern struct misc_meta_data *mmd; -extern struct audio_file_selector selectors[]; extern struct sender senders[]; -static char *inbuf; -static size_t *chunk_table, inbuf_size; - -static FILE *audio_file = NULL; -#if 1 - void mp3_init(struct audio_format_handler *); -#endif - -#ifdef HAVE_OGGVORBIS - void ogg_init(struct audio_format_handler *); -#endif -#ifdef HAVE_FAAD - void aac_afh_init(struct audio_format_handler *); -#endif +static char *map; /** - * the list of supported audio formats - */ -static struct audio_format_handler afl[] = { -#if 1 - { - .name = "mp3", - .init = mp3_init, - }, -#endif -#ifdef HAVE_OGGVORBIS - { - .name = "ogg", - .init = ogg_init, - }, -#endif -#ifdef HAVE_FAAD - { - .name = "aac", - .init = aac_afh_init, - }, -#endif - { - .name = NULL, - } -}; - -/** iterate over each supported audio format */ -#define FOR_EACH_AUDIO_FORMAT(i) for (i = 0; afl[i].name; i++) - - - -/** - * check if vss status flag \a P (playing) is set + * Check if vss status flag \a P (playing) is set. * - * \return greater than zero if playing, zero otherwise. + * \return Greater than zero if playing, zero otherwise. * */ unsigned int vss_playing(void) @@ -103,9 +52,9 @@ unsigned int vss_playing(void) } /** - * check if \a N (next) status flag is set + * Check if the \a N (next) status flag is set. * - * \return greater than zero if set, zero if not. + * \return Greater than zero if set, zero if not. * */ unsigned int vss_next(void) @@ -114,9 +63,9 @@ unsigned int vss_next(void) } /** - * check if a reposition request is pending + * Check if a reposition request is pending. * - * \return greater than zero if true, zero otherwise. + * \return Greater than zero if true, zero otherwise. * */ unsigned int vss_repos(void) @@ -125,9 +74,9 @@ unsigned int vss_repos(void) } /** - * check if the vss is currently paused + * Check if the vss is currently paused. * - * \return greater than zero if paused, zero otherwise. + * \return Greater than zero if paused, zero otherwise. * */ unsigned int vss_paused(void) @@ -137,36 +86,32 @@ unsigned int vss_paused(void) } /** - * get the name of the given audio format - * \param i the audio format number + * Check if the vss is currently stopped. + * + * \return Greater than zero if paused, zero otherwise. * - * This returns a pointer to statically allocated memory so it - * must not be freed by the caller. */ -const char *audio_format_name(int i) +unsigned int vss_stopped(void) { - return i >= 0? afl[i].name : "(none)"; + return (mmd->new_vss_status_flags & VSS_NEXT) + && !(mmd->new_vss_status_flags & VSS_PLAYING); } /** - * initialize the virtual streaming system + * Initialize the virtual streaming system. * - * Call the init functions of all supported audio format handlers and - * initialize all supported senders. + * This also initializes all supported senders and starts streaming + * if the --autoplay command line flag was given. */ void vss_init(void) { int i; char *hn = para_hostname(), *home = para_homedir(); - - PARA_DEBUG_LOG("supported audio formats: %s\n", - SUPPORTED_AUDIO_FORMATS); - for (i = 0; afl[i].name; i++) { - PARA_NOTICE_LOG("initializing %s handler\n", - afl[i].name); - afl[i].init(&afl[i]); - } - ms2tv(conf.announce_time_arg, &announce_tv); + long unsigned announce_time = conf.announce_time_arg > 0? + conf.announce_time_arg : 300, + autoplay_delay = conf.autoplay_delay_arg > 0? + conf.autoplay_delay_arg : 0; + ms2tv(announce_time, &announce_tv); PARA_INFO_LOG("announce timeval: %lums\n", tv2ms(&announce_tv)); for (i = 0; senders[i].name; i++) { PARA_NOTICE_LOG("initializing %s sender\n", senders[i].name); @@ -179,130 +124,11 @@ void vss_init(void) mmd->vss_status_flags |= VSS_PLAYING; mmd->new_vss_status_flags |= VSS_PLAYING; gettimeofday(&now, NULL); - ms2tv(conf.autoplay_delay_arg, &tmp); + ms2tv(autoplay_delay, &tmp); tv_add(&now, &tmp, &autoplay_barrier); } } -static int get_file_info(int i) -{ - return afl[i].get_file_info(audio_file, mmd->audio_file_info, - &mmd->chunks_total, &mmd->seconds_total, &chunk_table); -} - -/** - * guess the audio format judging from filename - * - * \param name the filename - * - * \return This function returns -1 if it has no idea what kind of audio - * file this might be. Otherwise the (non-negative) number of the audio format - * is returned. - */ -int guess_audio_format(const char *name) -{ - int i,j, len = strlen(name); - - FOR_EACH_AUDIO_FORMAT(i) { - for (j = 0; afl[i].suffixes[j]; j++) { - const char *p = afl[i].suffixes[j]; - int plen = strlen(p); - if (len < plen + 1) - continue; - if (name[len - plen - 1] != '.') - continue; - if (strcasecmp(name + len - plen, p)) - continue; -// PARA_DEBUG_LOG("might be %s\n", audio_format_name(i)); - return i; - } - } - return -1; -} - -static int get_audio_format(int omit) -{ - int i; - - FOR_EACH_AUDIO_FORMAT(i) { - if (i == omit) - continue; - rewind(audio_file); - if (get_file_info(i) > 0) - return i; - rewind(audio_file); - } - return -E_AUDIO_FORMAT; -} - -/* - * upddate shared mem - */ -static int update_mmd(void) -{ - int i; - struct stat file_status; - - i = guess_audio_format(mmd->filename); - if (i < 0 || get_file_info(i) < 0) - i = get_audio_format(i); - if (i < 0) - return i; - mmd->audio_format = i; - mmd->chunks_sent = 0; - mmd->current_chunk = 0; - mmd->offset = 0; - if (fstat(fileno(audio_file), &file_status) == -1) - return -E_FSTAT; - mmd->size = file_status.st_size; - mmd->mtime = file_status.st_mtime; - mmd->events++; - PARA_NOTICE_LOG("next audio file: %s\n", mmd->filename); - return 1; -} - -static void get_song(void) -{ - char **sl = selectors[mmd->selector_num].get_audio_file_list(10); - int i; - - if (!sl) - goto err_out; - for (i = 0; sl[i]; i++) { - struct timeval now; - PARA_INFO_LOG("trying %s\n", sl[i]); - if (strlen(sl[i]) >= _POSIX_PATH_MAX) - continue; - audio_file = fopen(sl[i], "r"); - if (!audio_file) - continue; - strcpy(mmd->filename, sl[i]); - if (update_mmd() < 0) { - fclose(audio_file); - audio_file = NULL; - continue; - } - mmd->num_played++; - if (selectors[mmd->selector_num].update_audio_file) - selectors[mmd->selector_num].update_audio_file(sl[i]); - PARA_DEBUG_LOG("%s", "success\n"); - mmd->new_vss_status_flags &= (~VSS_NEXT); - gettimeofday(&now, NULL); - tv_add(&now, &announce_tv, &data_send_barrier); - - goto free; - } - PARA_ERROR_LOG("%s", "no valid files found\n"); -err_out: - mmd->new_vss_status_flags = VSS_NEXT; -free: - if (sl) { - for (i = 0; sl[i]; i++) - free(sl[i]); - free(sl); - } -} - static int chk_barrier(const char *bname, const struct timeval *now, const struct timeval *barrier, struct timeval *diff, int print_log) @@ -317,14 +143,6 @@ static int chk_barrier(const char *bname, const struct timeval *now, return -1; } -static void vss_next_chunk_time(struct timeval *due) -{ - struct timeval tmp; - - tv_scale(mmd->chunks_sent, &afl[mmd->audio_format].chunk_tv, &tmp); - tv_add(&tmp, &mmd->stream_start, due); -} - /* * != NULL: timeout for next chunk * NULL: nothing to do @@ -334,7 +152,7 @@ static struct timeval *vss_compute_timeout(void) static struct timeval the_timeout; struct timeval now, next_chunk; - if (vss_next() && mmd->audio_format >= 0) { + if (vss_next() && map) { /* only sleep a bit, nec*/ the_timeout.tv_sec = 0; the_timeout.tv_usec = 100; @@ -349,11 +167,11 @@ static struct timeval *vss_compute_timeout(void) if (chk_barrier("data send", &now, &data_send_barrier, &the_timeout, 1) < 0) return &the_timeout; - if (mmd->audio_format < 0 || !vss_playing() || !audio_file) + if (!vss_playing() || !map) return NULL; - vss_next_chunk_time(&next_chunk); - if (chk_barrier(afl[mmd->audio_format].name, &now, &next_chunk, - &the_timeout, 0) < 0) + compute_chunk_time(mmd->chunks_sent, &mmd->afd.afhi.chunk_tv, + &mmd->stream_start, &next_chunk); + if (chk_barrier("chunk", &now, &next_chunk, &the_timeout, 0) < 0) return &the_timeout; /* chunk is due or bof */ the_timeout.tv_sec = 0; @@ -361,63 +179,56 @@ static struct timeval *vss_compute_timeout(void) return &the_timeout; } -static void vss_eof(struct audio_format_handler *af) +static void vss_eof(void) { struct timeval now; int i; char *tmp; - if (!af || !audio_file) { + if (!map) { for (i = 0; senders[i].name; i++) senders[i].shutdown_clients(); return; } + if (mmd->new_vss_status_flags & VSS_NOMORE) + mmd->new_vss_status_flags = VSS_NEXT; gettimeofday(&now, NULL); - tv_add(&af->eof_tv, &now, &eof_barrier); - af->close_audio_file(); - audio_file = NULL; - mmd->audio_format = -1; - af = NULL; + tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier); + munmap(map, mmd->size); + map = NULL; mmd->chunks_sent = 0; mmd->offset = 0; - mmd->seconds_total = 0; - tmp = make_message("%s:\n%s:\n%s:\n", status_item_list[SI_AUDIO_INFO1], - status_item_list[SI_AUDIO_INFO2], status_item_list[SI_AUDIO_INFO3]); - strcpy(mmd->audio_file_info, tmp); - free(tmp); - tmp = make_message("%s:\n%s:\n%s:\n", status_item_list[SI_DBINFO1], - status_item_list[SI_DBINFO2], status_item_list[SI_DBINFO3]); - strcpy(mmd->selector_info, tmp); + mmd->afd.afhi.seconds_total = 0; + free(mmd->afd.afhi.chunk_table); + mmd->afd.afhi.chunk_table = NULL; + tmp = make_message("%s:\n%s:\n%s:\n", status_item_list[SI_AUDIO_FILE_INFO], + status_item_list[SI_TAGINFO1], status_item_list[SI_TAGINFO2]); + strncpy(mmd->afd.afhi.info_string, tmp, sizeof(mmd->afd.afhi.info_string)); + mmd->afd.afhi.info_string[sizeof(mmd->afd.afhi.info_string) - 1] = '\0'; + make_empty_status_items(mmd->afd.verbose_ls_output); free(tmp); - mmd->filename[0] = '\0'; + mmd->mtime = 0; mmd->size = 0; mmd->events++; } /** - * get the header and of the current audio file - * - * \param header_len the length of the header is stored here + * Get the header of the current audio file. * - * \return a pointer to a buffer containing the header, or NULL, if no audio - * file is selected or if the current audio format does not need special header - * treamtment. + * \param buf The length of the header is stored here. + * \param len Points to a buffer containing the header on return. * + * \sa afh_get_header. */ -char *vss_get_header(int *header_len) +void vss_get_header(char **buf, size_t *len) { - *header_len = 0; - if (mmd->audio_format < 0) - return NULL; - if (!afl[mmd->audio_format].get_header_info) - return NULL; - return afl[mmd->audio_format].get_header_info(header_len); + afh_get_header(&mmd->afd.afhi, map, buf, len); } /** - * get the list of all supported audio formats + * Get the list of all supported audio formats. * - * \return a space separated list of all supported audio formats + * \return Aa space separated list of all supported audio formats * It is not allocated at runtime, i.e. there is no need to free * the returned string in the caller. */ @@ -427,63 +238,76 @@ const char *supported_audio_formats(void) } /** - * get the chunk time of the current audio file + * Get the chunk time of the current audio file. * - * \return a pointer to a struct containing the chunk time, or NULL, + * \return A pointer to a struct containing the chunk time, or NULL, * if currently no audio file is selected. */ struct timeval *vss_chunk_time(void) { - if (mmd->audio_format < 0) + if (!map) return NULL; - return &afl[mmd->audio_format].chunk_tv; + return &mmd->afd.afhi.chunk_tv; } +/** The possible states of the afs socket. See \ref afs_socket. */ +enum afs_socket_status { + /** Socket is inactive. */ + AFS_SOCKET_READY, + /** Socket fd was included in the write fd set for select(). */ + AFS_SOCKET_CHECK_FOR_WRITE, + /** vss wrote a request to the socket and waits for afs to reply. */ + AFS_SOCKET_AFD_PENDING +}; + +static enum afs_socket_status afsss; + /** - * compute the timeout for para_server's main select-loop + * Compute the timeout for para_server's main select-loop. * * This function gets called from para_server to determine the timeout value * for its main select loop. * + * \param rfds The set of file descriptors to be checked for reading. + * \param wfds The set of file descriptors to be checked for writing. + * \param max_fileno The highest-numbered file descriptor. + * * Before the timeout is computed, the current vss status flags are evaluated * and acted upon by calling appropriate functions from the lower layers. * Possible actions include * - * - request a new file list from the current audio file selector - * - shutdown of all senders (stop/pause command) - * - reposition the stream (ff/jmp command) + * - request a new audio file from afs, + * - shutdown of all senders (stop/pause command), + * - reposition the stream (ff/jmp command). * * \return A pointer to a struct timeval containing the timeout for the next * chunk of data to be sent, or NULL if we're not sending right now. */ -struct timeval *vss_preselect(void) +struct timeval *vss_preselect(fd_set *rfds, fd_set *wfds, int *max_fileno) { - struct audio_format_handler *af = NULL; - int i, format; - struct timeval *ret; -again: - format = mmd->audio_format; - if (format >= 0) - af = afl + format; - else + int i; + struct timeval *tv; + + para_fd_set(afs_socket, rfds, max_fileno); + if (!map) for (i = 0; senders[i].name; i++) senders[i].shutdown_clients(); - if (vss_next() && af) { - vss_eof(af); - return vss_compute_timeout(); + else { + if (vss_next()) { + vss_eof(); + return vss_compute_timeout(); + } } if (vss_paused() || vss_repos()) { for (i = 0; senders[i].name; i++) senders[i].shutdown_clients(); - if (af) { + if (map) { struct timeval now; gettimeofday(&now, NULL); if (!vss_paused() || mmd->chunks_sent) - tv_add(&af->eof_tv, &now, &eof_barrier); + tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier); if (vss_repos()) tv_add(&now, &announce_tv, &data_send_barrier); - if (mmd->new_vss_status_flags & VSS_NOMORE) - mmd->new_vss_status_flags = VSS_NEXT; } mmd->chunks_sent = 0; } @@ -491,70 +315,159 @@ again: mmd->new_vss_status_flags &= ~(VSS_REPOS); mmd->current_chunk = mmd->repos_request; } - ret = vss_compute_timeout(); - if (!ret && !audio_file && vss_playing() && + tv = vss_compute_timeout(); + if (tv) + return tv; + if (!map && vss_playing() && !(mmd->new_vss_status_flags & VSS_NOMORE)) { - PARA_DEBUG_LOG("%s", "ready and playing, but no audio file\n"); - get_song(); - goto again; + if (afsss == AFS_SOCKET_READY || + afsss == AFS_SOCKET_CHECK_FOR_WRITE) { + PARA_DEBUG_LOG("ready and playing, but no audio file\n"); + para_fd_set(afs_socket, wfds, max_fileno); + afsss = AFS_SOCKET_CHECK_FOR_WRITE; + } } - return ret; + return tv; } -static char *vss_read_chunk(long unsigned current_chunk, ssize_t *len) +static int recv_afs_msg(int *fd, uint32_t *code, uint32_t *data) { - int ret; - size_t pos; - - *len = 0; - if (current_chunk >= mmd->chunks_total) - return NULL; - *len = chunk_table[current_chunk + 1] - chunk_table[current_chunk]; - if (!*len) /* nothing to send for this run */ - return inbuf; - pos = chunk_table[current_chunk]; - if (inbuf_size < *len) { - PARA_INFO_LOG("increasing inbuf for chunk #%lu/%lu to %zd bytes\n", - current_chunk, mmd->chunks_total, *len); - inbuf = para_realloc(inbuf, *len); - inbuf_size = *len; + char control[255], buf[8]; + struct msghdr msg = {.msg_iov = NULL}; + struct cmsghdr *cmsg; + struct iovec iov; + int ret = 0; + + *fd = -1; + iov.iov_base = buf; + iov.iov_len = sizeof(buf); + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + msg.msg_control = control; + msg.msg_controllen = sizeof(control); + memset(buf, 0, sizeof(buf)); + ret = recvmsg(afs_socket, &msg, 0); + if (ret < 0) + return -ERRNO_TO_PARA_ERROR(errno); + afsss = AFS_SOCKET_READY; + if (iov.iov_len != sizeof(buf)) + return -E_AFS_SHORT_READ; + *code = *(uint32_t*)buf; + *data = *(uint32_t*)(buf + 4); + for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) { + if (cmsg->cmsg_level != SOL_SOCKET + || cmsg->cmsg_type != SCM_RIGHTS) + continue; + if ((cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int) != 1) + continue; + *fd = *(int *)CMSG_DATA(cmsg); } -// PARA_DEBUG_LOG("reading chunk #%lu@%zd (%zd bytes)\n", current_chunk, -// pos, *len); - ret = fseek(audio_file, pos, SEEK_SET); + return 1; +} + +static void recv_afs_result(void) +{ + int ret, passed_fd, shmid; + uint32_t afs_code = 0, afs_data = 0; + struct stat statbuf; + struct timeval now; + + mmd->afd.afhi.chunk_table = NULL; + ret = recv_afs_msg(&passed_fd, &afs_code, &afs_data); if (ret < 0) - return NULL; - ret = para_fread(inbuf, *len, 1, audio_file); - if (ret != *len) - return NULL; - return inbuf; + goto err; + PARA_DEBUG_LOG("fd: %d, code: %u, shmid: %u\n", passed_fd, afs_code, + afs_data); + ret = -E_NOFD; + if (afs_code != NEXT_AUDIO_FILE) + goto err; + if (passed_fd < 0) + goto err; + shmid = afs_data; + ret = load_afd(shmid, &mmd->afd); + if (ret < 0) + goto err; + shm_destroy(shmid); + ret = fstat(passed_fd, &statbuf); + if (ret < 0) { + PARA_ERROR_LOG("fstat error:\n"); + ret = -ERRNO_TO_PARA_ERROR(errno); + goto err; + } + mmd->size = statbuf.st_size; + mmd->mtime = statbuf.st_mtime; + map = para_mmap(mmd->size, PROT_READ, MAP_PRIVATE, + passed_fd, 0); + close(passed_fd); + mmd->chunks_sent = 0; + mmd->current_chunk = 0; + mmd->offset = 0; + mmd->events++; + mmd->num_played++; + mmd->new_vss_status_flags &= (~VSS_NEXT); + gettimeofday(&now, NULL); + tv_add(&now, &announce_tv, &data_send_barrier); + return; +err: + free(mmd->afd.afhi.chunk_table); + if (passed_fd >= 0) + close(passed_fd); + PARA_ERROR_LOG("%s\n", para_strerror(-ret)); + mmd->new_vss_status_flags = VSS_NEXT; } +void vss_post_select(fd_set *rfds, fd_set *wfds) +{ + int ret; + + if (FD_ISSET(afs_socket, rfds)) + recv_afs_result(); + if (afsss != AFS_SOCKET_CHECK_FOR_WRITE || !FD_ISSET(afs_socket, wfds)) + return; + PARA_NOTICE_LOG("requesting new fd from afs\n"); + ret = send_buffer(afs_socket, "new"); + afsss = AFS_SOCKET_AFD_PENDING; +} /** - * main sending function + * Get the data of the given chunk. * - * This function gets called from para_server as soon as the next chunk of - * data should be pushed out. It first calls the read_chunk() function of - * the current audio format handler to obtain a pointer to the data to be - * sent out as well as its length. This information is then passed to each - * supported sender's send() function which does the actual sending. + * \param chunk_num The number of the desired chunk. + * \param buf Chunk data. + * \param len Chunk length in bytes. * - * Return value: Positive return value on success, zero on eof and negative - * on errors. + * \return Standard. + */ +int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len) +{ + if (!map || !vss_playing()) + return -E_CHUNK; + if (chunk_num >= mmd->afd.afhi.chunks_total) + return -E_CHUNK; + afh_get_chunk(chunk_num, &mmd->afd.afhi, map, buf, len); + return 1; +} + +/** + * Main sending function. + * + * This function gets called from para_server as soon as the next chunk of data + * should be pushed out. It obtains a pointer to the data to be sent out as + * well as its length from mmd->afd.afhi. This information is then passed to + * each supported sender's send() function which is supposed to send out the data + * to all connected clients. */ void vss_send_chunk(void) { int i; - struct audio_format_handler *af; - char *buf; - ssize_t ret; struct timeval now, due; + char *buf; + size_t len; - if (mmd->audio_format < 0 || !audio_file || !vss_playing()) + if (!map || !vss_playing()) return; - af = &afl[mmd->audio_format]; gettimeofday(&now, NULL); - vss_next_chunk_time(&due); + compute_chunk_time(mmd->chunks_sent, &mmd->afd.afhi.chunk_tv, + &mmd->stream_start, &due); if (tv_diff(&due, &now, NULL) > 0) return; if (chk_barrier("eof", &now, &eof_barrier, &due, 1) < 0) @@ -562,25 +475,25 @@ void vss_send_chunk(void) if (chk_barrier("data send", &now, &data_send_barrier, &due, 1) < 0) return; - buf = vss_read_chunk(mmd->current_chunk, &ret); mmd->new_vss_status_flags &= ~VSS_REPOS; - if (!buf) { - if (ret < 0) - mmd->new_vss_status_flags = VSS_NEXT; - else - mmd->new_vss_status_flags |= VSS_NEXT; - vss_eof(af); - return; + if (mmd->current_chunk >= mmd->afd.afhi.chunks_total) { /* eof */ + mmd->new_vss_status_flags |= VSS_NEXT; + return vss_eof(); } + /* + * We call the send function also in case of empty chunks as they + * might have still some data queued which can be sent in this case. + */ if (!mmd->chunks_sent) { struct timeval tmp; gettimeofday(&mmd->stream_start, NULL); - tv_scale(mmd->current_chunk, &af->chunk_tv, &tmp); + tv_scale(mmd->current_chunk, &mmd->afd.afhi.chunk_tv, &tmp); mmd->offset = tv2ms(&tmp); mmd->events++; } + afh_get_chunk(mmd->current_chunk, &mmd->afd.afhi, map, &buf, &len); for (i = 0; senders[i].name; i++) - senders[i].send(mmd->current_chunk, mmd->chunks_sent, buf, ret); + senders[i].send(mmd->current_chunk, mmd->chunks_sent, buf, len); mmd->new_vss_status_flags |= VSS_PLAYING; mmd->chunks_sent++; mmd->current_chunk++;