mirror of https://github.com/mpv-player/mpv
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <assert.h>
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#include <libavutil/intreadwrite.h>
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#include <libavutil/common.h>
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#include "sd.h"
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static bool supports_format(const char *format)
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{
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return format && strcmp(format, "mov_text") == 0;
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}
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static int init(struct sd *sd)
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{
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sd->output_codec = "text";
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return 0;
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}
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static void decode(struct sd *sd, struct demux_packet *packet)
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{
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unsigned char *data = packet->buffer;
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int len = packet->len;
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if (len < 2)
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return;
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len = FFMIN(len - 2, AV_RB16(data));
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data += 2;
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if (len > 0)
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sd_conv_add_packet(sd, data, len, packet->pts, packet->duration);
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}
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const struct sd_functions sd_movtext = {
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.name = "movtext",
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.supports_format = supports_format,
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.init = init,
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.decode = decode,
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.get_converted = sd_conv_def_get_converted,
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.reset = sd_conv_def_reset,
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};
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