From 636ced8e1dc8248a1353b416240b93d70ad03edb Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Sun, 7 Jul 2013 01:52:51 +0200 Subject: cmdutils: wrap exit explicitly Some C runtime implementations deadlock when calling threading functions on the atexit() handler. Use a simpler wrapper similar to av_log to call the cleanup function before exit. Bug-Id: 523 --- avconv.c | 62 +++++++++++++++++++++++++++++++------------------------------- avprobe.c | 12 ++++++------ cmdutils.c | 31 +++++++++++++++++++++++-------- cmdutils.h | 10 ++++++++++ 4 files changed, 70 insertions(+), 45 deletions(-) diff --git a/avconv.c b/avconv.c index 271ae60047..3157c960c0 100644 --- a/avconv.c +++ b/avconv.c @@ -142,7 +142,7 @@ static int decode_interrupt_cb(void *ctx) const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }; -static void exit_program(void) +static void avconv_cleanup(int ret) { int i, j; @@ -224,7 +224,7 @@ void assert_avoptions(AVDictionary *m) AVDictionaryEntry *t; if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) { av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key); - exit(1); + exit_program(1); } } @@ -239,7 +239,7 @@ static void abort_codec_experimental(AVCodec *c, int encoder) if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL)) av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n", codec_string, codec->name); - exit(1); + exit_program(1); } /* @@ -333,14 +333,14 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost) new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size, av_buffer_default_free, NULL, 0); if (!new_pkt.buf) - exit(1); + exit_program(1); } else if (a < 0) { av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s", bsfc->filter->name, pkt->stream_index, avctx->codec ? avctx->codec->name : "copy"); print_error("", a); if (exit_on_error) - exit(1); + exit_program(1); } *pkt = new_pkt; @@ -355,7 +355,7 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost) ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts); if (exit_on_error) { av_log(NULL, AV_LOG_FATAL, "aborting.\n"); - exit(1); + exit_program(1); } av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result " "in incorrect timestamps in the output file.\n", @@ -370,7 +370,7 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost) ret = av_interleaved_write_frame(s, pkt); if (ret < 0) { print_error("av_interleaved_write_frame()", ret); - exit(1); + exit_program(1); } } @@ -404,7 +404,7 @@ static void do_audio_out(AVFormatContext *s, OutputStream *ost, if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) { av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n"); - exit(1); + exit_program(1); } if (got_packet) { @@ -436,7 +436,7 @@ static void do_subtitle_out(AVFormatContext *s, if (pts == AV_NOPTS_VALUE) { av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n"); if (exit_on_error) - exit(1); + exit_program(1); return; } @@ -468,7 +468,7 @@ static void do_subtitle_out(AVFormatContext *s, subtitle_out_max_size, sub); if (subtitle_out_size < 0) { av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n"); - exit(1); + exit_program(1); } av_init_packet(&pkt); @@ -557,7 +557,7 @@ static void do_video_out(AVFormatContext *s, ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n"); - exit(1); + exit_program(1); } if (got_packet) { @@ -601,7 +601,7 @@ static void do_video_stats(OutputStream *ost, int frame_size) vstats_file = fopen(vstats_filename, "w"); if (!vstats_file) { perror("fopen"); - exit(1); + exit_program(1); } } @@ -912,7 +912,7 @@ static void flush_encoders(void) ret = encode(enc, &pkt, NULL, &got_packet); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc); - exit(1); + exit_program(1); } *size += ret; if (ost->logfile && enc->stats_out) { @@ -1003,7 +1003,7 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) { opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0); if (!opkt.buf) - exit(1); + exit_program(1); } } else { opkt.data = pkt->data; @@ -1073,7 +1073,7 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output) av_log(NULL, AV_LOG_FATAL, "Unable to find default channel " "layout for Input Stream #%d.%d\n", ist->file_index, ist->st->index); - exit(1); + exit_program(1); } decoded_frame->channel_layout = avctx->channel_layout; @@ -1099,7 +1099,7 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output) if (ist_in_filtergraph(filtergraphs[i], ist) && configure_filtergraph(filtergraphs[i]) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n"); - exit(1); + exit_program(1); } } @@ -1177,7 +1177,7 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output) if (ist_in_filtergraph(filtergraphs[i], ist) && configure_filtergraph(filtergraphs[i]) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n"); - exit(1); + exit_program(1); } } @@ -1333,7 +1333,7 @@ static void print_sdp(void) AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files); if (!avc) - exit(1); + exit_program(1); for (i = 0; i < nb_output_files; i++) avc[i] = output_files[i]->ctx; @@ -1424,7 +1424,7 @@ static void parse_forced_key_frames(char *kf, OutputStream *ost, ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n); if (!ost->forced_kf_pts) { av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n"); - exit(1); + exit_program(1); } p = kf; @@ -1539,7 +1539,7 @@ static int transcode_init(void) case AVMEDIA_TYPE_AUDIO: if (audio_volume != 256) { av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n"); - exit(1); + exit_program(1); } codec->channel_layout = icodec->channel_layout; codec->sample_rate = icodec->sample_rate; @@ -1619,7 +1619,7 @@ static int transcode_init(void) fg = init_simple_filtergraph(ist, ost); if (configure_filtergraph(fg)) { av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n"); - exit(1); + exit_program(1); } } @@ -1677,7 +1677,7 @@ static int transcode_init(void) if (!f) { av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno)); - exit(1); + exit_program(1); } ost->logfile = f; } else { @@ -1686,7 +1686,7 @@ static int transcode_init(void) if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n", logfilename); - exit(1); + exit_program(1); } codec->stats_in = logbuffer; } @@ -2090,7 +2090,7 @@ static int process_input(void) if (ret != AVERROR_EOF) { print_error(is->filename, ret); if (exit_on_error) - exit(1); + exit_program(1); } ifile->eof_reached = 1; @@ -2158,7 +2158,7 @@ static int process_input(void) av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n", ist->file_index, ist->st->index); if (exit_on_error) - exit(1); + exit_program(1); } discard_packet: @@ -2329,7 +2329,7 @@ int main(int argc, char **argv) int ret; int64_t ti; - atexit(exit_program); + register_exit(avconv_cleanup); av_log_set_flags(AV_LOG_SKIP_REPEATED); parse_loglevel(argc, argv, options); @@ -2347,29 +2347,29 @@ int main(int argc, char **argv) /* parse options and open all input/output files */ ret = avconv_parse_options(argc, argv); if (ret < 0) - exit(1); + exit_program(1); if (nb_output_files <= 0 && nb_input_files == 0) { show_usage(); av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name); - exit(1); + exit_program(1); } /* file converter / grab */ if (nb_output_files <= 0) { fprintf(stderr, "At least one output file must be specified\n"); - exit(1); + exit_program(1); } ti = getutime(); if (transcode() < 0) - exit(1); + exit_program(1); ti = getutime() - ti; if (do_benchmark) { int maxrss = getmaxrss() / 1024; printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss); } - exit(0); + exit_program(0); return 0; } diff --git a/avprobe.c b/avprobe.c index 5ad56a182b..c7b3d39cb2 100644 --- a/avprobe.c +++ b/avprobe.c @@ -60,7 +60,7 @@ static const char unit_hertz_str[] = "Hz" ; static const char unit_byte_str[] = "byte" ; static const char unit_bit_per_second_str[] = "bit/s"; -static void exit_program(void) +static void avprobe_cleanup(int ret) { av_dict_free(&fmt_entries_to_show); } @@ -366,7 +366,7 @@ static void probe_group_enter(const char *name, int type) if (!octx.prefix || !name) { fprintf(stderr, "Out of memory\n"); - exit(1); + exit_program(1); } if (octx.level) { @@ -854,7 +854,7 @@ static void opt_input_file(void *optctx, const char *arg) fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", arg, input_filename); - exit(1); + exit_program(1); } if (!strcmp(arg, "-")) arg = "pipe:"; @@ -919,7 +919,7 @@ int main(int argc, char **argv) if (!buffer) exit(1); - atexit(exit_program); + register_exit(avprobe_cleanup); options = real_options; parse_loglevel(argc, argv, options); @@ -949,13 +949,13 @@ int main(int argc, char **argv) fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'.\n", program_name); - exit(1); + exit_program(1); } probe_out = avio_alloc_context(buffer, AVP_BUFFSIZE, 1, NULL, NULL, probe_buf_write, NULL); if (!probe_out) - exit(1); + exit_program(1); probe_header(); ret = probe_file(input_filename); diff --git a/cmdutils.c b/cmdutils.c index ea86b83415..8e43795191 100644 --- a/cmdutils.c +++ b/cmdutils.c @@ -82,6 +82,21 @@ void log_callback_help(void *ptr, int level, const char *fmt, va_list vl) vfprintf(stdout, fmt, vl); } +static void (*program_exit)(int ret); + +void register_exit(void (*cb)(int ret)) +{ + program_exit = cb; +} + +void exit_program(int ret) +{ + if (program_exit) + program_exit(ret); + + exit(ret); +} + double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max) { @@ -99,7 +114,7 @@ double parse_number_or_die(const char *context, const char *numstr, int type, else return d; av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max); - exit(1); + exit_program(1); return 0; } @@ -110,7 +125,7 @@ int64_t parse_time_or_die(const char *context, const char *timestr, if (av_parse_time(&us, timestr, is_duration) < 0) { av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n", is_duration ? "duration" : "date", context, timestr); - exit(1); + exit_program(1); } return us; } @@ -272,7 +287,7 @@ static int write_option(void *optctx, const OptionDef *po, const char *opt, } } if (po->flags & OPT_EXIT) - exit(0); + exit_program(0); return 0; } @@ -332,7 +347,7 @@ void parse_options(void *optctx, int argc, char **argv, const OptionDef *options opt++; if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0) - exit(1); + exit_program(1); optindex += ret; } else { if (parse_arg_function) @@ -538,7 +553,7 @@ static void init_parse_context(OptionParseContext *octx, octx->nb_groups = nb_groups; octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups); if (!octx->groups) - exit(1); + exit_program(1); for (i = 0; i < octx->nb_groups; i++) octx->groups[i].group_def = &groups[i]; @@ -705,7 +720,7 @@ int opt_loglevel(void *optctx, const char *opt, const char *arg) "Possible levels are numbers or:\n", arg); for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name); - exit(1); + exit_program(1); } av_log_set_level(level); return 0; @@ -1586,13 +1601,13 @@ void *grow_array(void *array, int elem_size, int *size, int new_size) { if (new_size >= INT_MAX / elem_size) { av_log(NULL, AV_LOG_ERROR, "Array too big.\n"); - exit(1); + exit_program(1); } if (*size < new_size) { uint8_t *tmp = av_realloc(array, new_size*elem_size); if (!tmp) { av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n"); - exit(1); + exit_program(1); } memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size); *size = new_size; diff --git a/cmdutils.h b/cmdutils.h index 2372b3f387..997ba1c750 100644 --- a/cmdutils.h +++ b/cmdutils.h @@ -44,6 +44,16 @@ extern AVFormatContext *avformat_opts; extern struct SwsContext *sws_opts; extern AVDictionary *format_opts, *codec_opts, *resample_opts; +/** + * Register a program-specific cleanup routine. + */ +void register_exit(void (*cb)(int ret)); + +/** + * Wraps exit with a program-specific cleanup routine. + */ +void exit_program(int ret); + /** * Initialize the cmdutils option system, in particular * allocate the *_opts contexts. -- cgit v1.2.3