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fftools/ffmpeg: rework handling -max_error_rate

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Replace the decode_error_stat global with a per-input-stream variable.
Also, print an error message when the error rate is exceeded.
This commit is contained in:
Anton Khirnov 2023-05-16 20:21:20 +02:00
parent d064c9ded5
commit 4cec5ffc45
3 changed files with 25 additions and 14 deletions
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33
fftools/ffmpeg.c
View File

@ -121,7 +121,6 @@ static int64_t getmaxrss(void);
int64_t nb_frames_dup = 0;
int64_t nb_frames_drop = 0;
static int64_t decode_error_stat[2];
unsigned nb_output_dumped = 0;
static BenchmarkTimeStamps current_time;
@ -771,8 +770,8 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
static void check_decode_result(InputStream *ist, int *got_output, int ret)
{
if (*got_output || ret<0)
decode_error_stat[ret<0] ++;
if (ret < 0)
ist->decode_errors++;
if (ret < 0 && exit_on_error)
exit_program(1);
@ -1807,14 +1806,15 @@ static int transcode_step(OutputStream *ost)
/*
* The following code is the main loop of the file converter
*/
static int transcode(void)
static int transcode(int *err_rate_exceeded)
{
int ret, i;
int ret = 0, i;
InputStream *ist;
int64_t timer_start;
print_stream_maps();
*err_rate_exceeded = 0;
atomic_store(&transcode_init_done, 1);
if (stdin_interaction) {
@ -1855,9 +1855,20 @@ static int transcode(void)
/* at the end of stream, we must flush the decoder buffers */
for (ist = ist_iter(NULL); ist; ist = ist_iter(ist)) {
float err_rate;
if (!input_files[ist->file_index]->eof_reached) {
process_input_packet(ist, NULL, 0);
}
err_rate = (ist->frames_decoded || ist->decode_errors) ?
ist->decode_errors / (ist->frames_decoded + ist->decode_errors) : 0.f;
if (err_rate > max_error_rate) {
av_log(ist, AV_LOG_FATAL, "Decode error rate %g exceeds maximum %g\n",
err_rate, max_error_rate);
*err_rate_exceeded = 1;
} else if (err_rate)
av_log(ist, AV_LOG_VERBOSE, "Decode error rate %g\n", err_rate);
}
enc_flush();
@ -1921,7 +1932,7 @@ static int64_t getmaxrss(void)
int main(int argc, char **argv)
{
int ret;
int ret, err_rate_exceeded;
BenchmarkTimeStamps ti;
init_dynload();
@ -1958,7 +1969,7 @@ int main(int argc, char **argv)
}
current_time = ti = get_benchmark_time_stamps();
ret = transcode();
ret = transcode(&err_rate_exceeded);
if (ret >= 0 && do_benchmark) {
int64_t utime, stime, rtime;
current_time = get_benchmark_time_stamps();
@ -1969,12 +1980,10 @@ int main(int argc, char **argv)
"bench: utime=%0.3fs stime=%0.3fs rtime=%0.3fs\n",
utime / 1000000.0, stime / 1000000.0, rtime / 1000000.0);
}
av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
decode_error_stat[0], decode_error_stat[1]);
if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
exit_program(69);
ret = received_nb_signals ? 255 : ret;
ret = received_nb_signals ? 255 :
err_rate_exceeded ? 69 : ret;
exit_program(ret);
return ret;
}

1
fftools/ffmpeg.h
View File

@ -413,6 +413,7 @@ typedef struct InputStream {
// number of frames/samples retrieved from the decoder
uint64_t frames_decoded;
uint64_t samples_decoded;
uint64_t decode_errors;
} InputStream;
typedef struct LastFrameDuration {

5
fftools/ffmpeg_demux.c
View File

@ -786,8 +786,9 @@ static void demux_final_stats(Demuxer *d)
ds->nb_packets, ds->data_size);
if (ist->decoding_needed) {
av_log(f, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
ist->frames_decoded);
av_log(f, AV_LOG_VERBOSE,
"%"PRIu64" frames decoded; %"PRIu64" decode errors",
ist->frames_decoded, ist->decode_errors);
if (type == AVMEDIA_TYPE_AUDIO)
av_log(f, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
av_log(f, AV_LOG_VERBOSE, "; ");