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cmdutils: wrap exit explicitly

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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
This commit is contained in:
Luca Barbato
2013-07-07 01:52:51 +02:00
parent 21732063a3
commit 636ced8e1d
4 changed files with 70 additions and 45 deletions
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62
avconv.c
View File

@@ -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;
}

12
avprobe.c
View File

@@ -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);

31
cmdutils.c
View File

@@ -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;

10
cmdutils.h
View File

@@ -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.