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	blind-interleave.c - blind - suckless command-line video editing utility
	git clone git://git.suckless.org/blind
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	blind-interleave.c (1041B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include "common.h"
	3
	4 USAGE("(file frames) ...")
	5
	6 int
	7 main(int argc, char *argv[])
	8 {
	9 struct stream *streams;
	10 size_t parts, length = 0, *frames, i;
	11
	12 UNOFLAGS(argc % 2 \|\| !argc);
	13
	14 parts = (size_t)argc / 2;
	15 streams = emalloc2(parts, sizeof(*streams));
	16 frames = alloca(parts * sizeof(*frames));
	17
	18 for (i = 0; i < parts; i++) {
	19 eopen_stream(streams + i, argv[i * 2]);
	20 frames[i] = etozu_arg("frames", argv[i * 2 + 1], 1, SIZE…
	21 if (i)
	22 echeck_compat(streams, streams + i);
	23 }
	24 for (i = 0; i < parts; i++) {
	25 if (!streams[i].frames \|\| streams[i].frames > SIZE_MAX -…
	26 length = 0;
	27 break;
	28 }
	29 length += streams[i].frames;
	30 }
	31
	32 streams->frames = length;
	33 fprint_stream_head(stdout, streams);
	34 efflush(stdout, "<stdout>");
	35
	36 for (i = 0; i < parts; i++, i = i == parts ? 0 : i)
	37 if (esend_frames(streams + i, STDOUT_FILENO, frames[i], …
	38 break;
	39 for (i = 0; i < parts; i++)
	40 close(streams[i].fd);
	41
	42 free(streams);
	43 return 0;
	44 }