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fftools/ffmpeg: add an option for writing pre-muxing stats

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Analogous to -enc_stats*, but happens right before muxing. Useful
because bitstream filters and the sync queue can modify packets after
encoding and before muxing. Also has access to the muxing timebase.
This commit is contained in:
Anton Khirnov
2023-02-06 13:14:53 +01:00
parent 6d4f3ae116
commit 42a0dd6e7e
8 changed files with 60 additions and 17 deletions
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4
fftools/ffmpeg_opt.c
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@@ -1548,10 +1548,14 @@ const OptionDef options[] = {
"write encoding stats before encoding" },
{ "enc_stats_post", HAS_ARG | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT | OPT_STRING, { .off = OFFSET(enc_stats_post) },
"write encoding stats after encoding" },
{ "stats_mux_pre", HAS_ARG | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT | OPT_STRING, { .off = OFFSET(mux_stats) },
"write packets stats before muxing" },
{ "enc_stats_pre_fmt", HAS_ARG | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT | OPT_STRING, { .off = OFFSET(enc_stats_pre_fmt) },
"format of the stats written with -enc_stats_pre" },
{ "enc_stats_post_fmt", HAS_ARG | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT | OPT_STRING, { .off = OFFSET(enc_stats_post_fmt) },
"format of the stats written with -enc_stats_post" },
{ "stats_mux_pre_fmt", HAS_ARG | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT | OPT_STRING, { .off = OFFSET(mux_stats_fmt) },
"format of the stats written with -stats_mux_pre" },
/* video options */
{ "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },