[FFmpeg-devel] [PATCH] ffmpeg.c: allow ffmpeg to output stats for each video stream
Wang Cao
doubleecao at gmail.com
Wed May 23 01:40:54 EEST 2018
- Make ffmpeg to output stats for each video/audio streams and each ouptut file ffmpeg output log in print_report.
- The report of video/audio sizes is clear as previously all output
video/audio sizes were combined to report and it is unclear such stats
is for one output files or aggregates for all output files.
Signed-off-by: Wang Cao <wangcao at google.com>
---
fftools/ffmpeg.c | 65 ++++++++++++++++++++++++++++++++----------------
1 file changed, 44 insertions(+), 21 deletions(-)
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 5a19a09d9a..0b98521852 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -1526,17 +1526,28 @@ static int reap_filters(int flush)
return 0;
}
-static void print_final_stats(int64_t total_size)
+static void print_final_stats()
{
uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
uint64_t subtitle_size = 0;
uint64_t data_size = 0;
+ int64_t total_size;
float percent = -1.0;
int i, j;
int pass1_used = 1;
+ AVFormatContext *oc;
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = output_streams[i];
+ if (i > 0 && ost->file_index != output_streams[i-1]->file_index) {
+ video_size = 0;
+ audio_size = 0;
+ extra_size = 0;
+ other_size = 0;
+ subtitle_size = 0;
+ data_size = 0;
+ }
+
switch (ost->enc_ctx->codec_type) {
case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
@@ -1545,25 +1556,37 @@ static void print_final_stats(int64_t total_size)
}
extra_size += ost->enc_ctx->extradata_size;
data_size += ost->data_size;
+
if ( (ost->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
!= AV_CODEC_FLAG_PASS1)
pass1_used = 0;
- }
-
+
+ // Print stats for each output file.
+ if (i == nb_output_streams-1 || ost->file_index != output_streams[i+1]->file_index) {
+ oc = output_files[ost->file_index]->ctx;
+ total_size = avio_size(oc->pb);
+ if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
+ total_size = avio_tell(oc->pb);
+
if (data_size && total_size>0 && total_size >= data_size)
percent = 100.0 * (total_size - data_size) / data_size;
-
+
av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
video_size / 1024.0,
audio_size / 1024.0,
subtitle_size / 1024.0,
other_size / 1024.0,
extra_size / 1024.0);
+
if (percent >= 0.0)
av_log(NULL, AV_LOG_INFO, "%f%%", percent);
else
av_log(NULL, AV_LOG_INFO, "unknown");
av_log(NULL, AV_LOG_INFO, "\n");
+ }
+ }
+
+
/* print verbose per-stream stats */
for (i = 0; i < nb_input_files; i++) {
@@ -1676,13 +1699,6 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
t = (cur_time-timer_start) / 1000000.0;
-
- oc = output_files[0]->ctx;
-
- total_size = avio_size(oc->pb);
- if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
- total_size = avio_tell(oc->pb);
-
vid = 0;
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
av_bprint_init(&buf_script, 0, 1);
@@ -1693,12 +1709,13 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
if (!ost->stream_copy)
q = ost->quality / (float) FF_QP2LAMBDA;
- if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if (is_last_report && vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
av_bprintf(&buf, "q=%2.1f ", q);
av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
ost->file_index, ost->index, q);
}
- if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if (is_last_report || !is_last_report && !vid) {
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
float fps;
frame_number = ost->frame_number;
@@ -1750,14 +1767,16 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
ost->file_index, ost->index, p);
}
vid = 1;
- }
+ }
+
/* compute min output value */
if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
- ost->st->time_base, AV_TIME_BASE_Q));
+ ost->st->time_base, AV_TIME_BASE_Q));
if (is_last_report)
nb_frames_drop += ost->last_dropped;
- }
+
+ total_size = ost->data_size;
secs = FFABS(pts) / AV_TIME_BASE;
us = FFABS(pts) % AV_TIME_BASE;
@@ -1810,14 +1829,18 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
av_bprintf(&buf, " speed=%4.3gx", speed);
av_bprintf(&buf_script, "speed=%4.3gx\n", speed);
}
-
+
+ if (is_last_report)
+ av_bprintf(&buf, "\n");
+ }
+ }
+
if (print_stats || is_last_report) {
- const char end = is_last_report ? '\n' : '\r';
+ const char end = '\r';
if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
fprintf(stderr, "%s %c", buf.str, end);
} else
av_log(NULL, AV_LOG_INFO, "%s %c", buf.str, end);
-
fflush(stderr);
}
av_bprint_finalize(&buf, NULL);
@@ -1835,9 +1858,9 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
"Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
}
}
-
+
if (is_last_report)
- print_final_stats(total_size);
+ print_final_stats();
}
static void ifilter_parameters_from_codecpar(InputFilter *ifilter, AVCodecParameters *par)
--
2.17.0.441.gb46fe60e1d-goog
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