Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
fftools/ffmpeg.h | 1 +
fftools/ffmpeg_opt.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 888f77223a..cb912d95e4 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -161,6 +161,7 @@ typedef struct OptionsContext {
float mux_preload;
float mux_max_delay;
int shortest;
+ int bitexact;
int video_disable;
int audio_disable;
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 500920326b..a6af1c6622 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -786,6 +786,9 @@ static void add_input_streams(OptionsContext *o,
AVFormatContext *ic)
exit_program(1);
}
+ if (o->bitexact)
+ ist->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
+
switch (par->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if(!ist->dec)
@@ -1049,6 +1052,8 @@ static int open_input_file(OptionsContext *o, const char
*filename)
av_format_set_data_codec(ic, find_codec_or_die(data_codec_name,
AVMEDIA_TYPE_DATA, 0));
ic->flags |= AVFMT_FLAG_NONBLOCK;
+ if (o->bitexact)
+ ic->flags |= AVFMT_FLAG_BITEXACT;
ic->interrupt_callback = int_cb;
if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL,
AV_DICT_MATCH_CASE)) {
@@ -1370,6 +1375,10 @@ static OutputStream *new_output_stream(OptionsContext
*o, AVFormatContext *oc, e
ost->encoder_opts = filter_codec_opts(o->g->codec_opts,
AV_CODEC_ID_NONE, oc, st, NULL);
}
+
+ if (o->bitexact)
+ ost->enc_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
+
MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
if (time_base) {
AVRational q;
@@ -2148,6 +2157,10 @@ static int open_output_file(OptionsContext *o, const
char *filename)
const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
av_opt_eval_flags(oc, o, e->value, &format_flags);
}
+ if (o->bitexact) {
+ format_flags |= AVFMT_FLAG_BITEXACT;
+ oc->flags |= AVFMT_FLAG_BITEXACT;
+ }
/* create streams for all unlabeled output pads */
for (i = 0; i < nb_filtergraphs; i++) {
@@ -3471,6 +3484,9 @@ const OptionDef options[] = {
{ "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
OPT_OUTPUT, { .off =
OFFSET(shortest) },
"finish encoding within shortest input" },
+ { "bitexact", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
+ OPT_OUTPUT | OPT_INPUT, { .off =
OFFSET(bitexact) },
+ "bitexact mode" },
{ "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
OPT_OUTPUT, { .off =
OFFSET(apad) },
"audio pad", "" },
--
2.14.2
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