Only write platform-, build- and time-independent data.
This ensures that file and data checksums are reproducible and match between
platforms. Its primary use is for regression testing.
+@item shortest
+Stop muxing at the end of the shortest stream.
+It may be needed to increase max_interleave_delta to avoid flusing the longer
+streams before EOF.
@end table
@item seek2any @var{integer} (@emph{input})
#define AVFMT_FLAG_PRIV_OPT 0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted)
#define AVFMT_FLAG_KEEP_SIDE_DATA 0x40000 ///< Don't merge side data but keep it separate.
#define AVFMT_FLAG_FAST_SEEK 0x80000 ///< Enable fast, but inaccurate seeks for some formats
+#define AVFMT_FLAG_SHORTEST 0x100000 ///< Stop muxing when the shortest stream stops.
/**
* Maximum size of the data read from input for determining
*/
int header_written;
int write_header_ret;
+
+ /**
+ * Timestamp of the end of the shortest stream.
+ */
+ int64_t shortest_end;
};
struct AVStreamInternal {
int stream_count = 0;
int noninterleaved_count = 0;
int i, ret;
+ int eof = flush;
if (pkt) {
if ((ret = ff_interleave_add_packet(s, pkt, interleave_compare_dts)) < 0)
}
}
+ if (s->internal->packet_buffer &&
+ eof &&
+ (s->flags & AVFMT_FLAG_SHORTEST) &&
+ s->internal->shortest_end == AV_NOPTS_VALUE) {
+ AVPacket *top_pkt = &s->internal->packet_buffer->pkt;
+
+ s->internal->shortest_end = av_rescale_q(top_pkt->dts,
+ s->streams[top_pkt->stream_index]->time_base,
+ AV_TIME_BASE_Q);
+ }
+
+ if (s->internal->shortest_end != AV_NOPTS_VALUE) {
+ while (s->internal->packet_buffer) {
+ AVPacket *top_pkt = &s->internal->packet_buffer->pkt;
+ AVStream *st;
+ int64_t top_dts = av_rescale_q(top_pkt->dts,
+ s->streams[top_pkt->stream_index]->time_base,
+ AV_TIME_BASE_Q);
+
+ if (s->internal->shortest_end + 1 >= top_dts)
+ break;
+
+ pktl = s->internal->packet_buffer;
+ st = s->streams[pktl->pkt.stream_index];
+
+ s->internal->packet_buffer = pktl->next;
+ if (!s->internal->packet_buffer)
+ s->internal->packet_buffer_end = NULL;
+
+ if (st->last_in_packet_buffer == pktl)
+ st->last_in_packet_buffer = NULL;
+
+ av_packet_unref(&pktl->pkt);
+ av_freep(&pktl);
+ flush = 0;
+ }
+ }
+
if (stream_count && flush) {
AVStream *st;
pktl = s->internal->packet_buffer;
}
ic->internal->offset = AV_NOPTS_VALUE;
ic->internal->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
+ ic->internal->shortest_end = AV_NOPTS_VALUE;
return ic;
}
{"nobuffer", "reduce the latency introduced by optional buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
{"seek2any", "allow seeking to non-keyframes on demuxer level when supported", OFFSET(seek2any), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, D},
{"bitexact", "do not write random/volatile data", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_BITEXACT }, 0, 0, E, "fflags" },
+{"shortest", "stop muxing with the shortest stream", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_SHORTEST }, 0, 0, E, "fflags" },
{"analyzeduration", "specify how many microseconds are analyzed to probe the input", OFFSET(max_analyze_duration), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, D},
{"cryptokey", "decryption key", OFFSET(key), AV_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), AV_OPT_TYPE_INT, {.i64 = 1<<20 }, 0, INT_MAX, D},