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ffmpeg.wasm-core
Commit eeb1c515 authored by Raphaël Zumer's avatar Raphaël Zumer Committed by Vittorio Giovara
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avformat/ivfenc: Comment the length field encoding process 

Signed-off-by: 's avatarRaphaël Zumer <rzumer@tebako.net>
parent 971c890c
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libavformat/ivfenc.c
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...@@ -53,7 +53,7 @@ static int ivf_write_header(AVFormatContext *s) ...@@ -53,7 +53,7 @@ static int ivf_write_header(AVFormatContext *s)
avio_wl16(pb, par->height); avio_wl16(pb, par->height);
avio_wl32(pb, s->streams[0]->time_base.den); avio_wl32(pb, s->streams[0]->time_base.den);
avio_wl32(pb, s->streams[0]->time_base.num); avio_wl32(pb, s->streams[0]->time_base.num);
avio_wl64(pb, 0xFFFFFFFFFFFFFFFFULL); avio_wl64(pb, 0xFFFFFFFFFFFFFFFFULL); // length is overwritten at the end of muxing
return 0; return 0;
} }
...@@ -83,6 +83,7 @@ static int ivf_write_trailer(AVFormatContext *s) ...@@ -83,6 +83,7 @@ static int ivf_write_trailer(AVFormatContext *s)
size_t end = avio_tell(pb); size_t end = avio_tell(pb);
avio_seek(pb, 24, SEEK_SET); avio_seek(pb, 24, SEEK_SET);
// overwrite the "length" field (duration)
avio_wl64(pb, ctx->frame_cnt * ctx->sum_delta_pts / (ctx->frame_cnt - 1)); avio_wl64(pb, ctx->frame_cnt * ctx->sum_delta_pts / (ctx->frame_cnt - 1));
avio_seek(pb, end, SEEK_SET); avio_seek(pb, end, SEEK_SET);
} }
......
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