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third_party_ffmpeg/libavformat/nut.c
Derek Buitenhuis b1fcdc08ce nut: Fix unchecked allocations 
CC: libav-stable@libav.org
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2013-10-22 17:09:56 +01:00

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/*
* nut
* Copyright (c) 2004-2007 Michael Niedermayer
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/mathematics.h"
#include "libavutil/tree.h"
#include "nut.h"
#include "riff.h"
#include "internal.h"
const AVCodecTag ff_nut_subtitle_tags[] = {
{ AV_CODEC_ID_TEXT, MKTAG('U', 'T', 'F', '8') },
{ AV_CODEC_ID_SSA, MKTAG('S', 'S', 'A', 0) },
{ AV_CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') },
{ AV_CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') },
{ AV_CODEC_ID_NONE, 0 }
};
const AVCodecTag ff_nut_data_tags[] = {
{ AV_CODEC_ID_TEXT, MKTAG('U', 'T', 'F', '8') },
{ AV_CODEC_ID_NONE, 0 }
};
const AVCodecTag ff_nut_video_tags[] = {
{ AV_CODEC_ID_VP9, MKTAG('V', 'P', '9', '0') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(15, 'B', 'G', 'R') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(15, 'R', 'G', 'B') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 'B', 'G', 'R') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 'R', 'G', 'B') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(12, 'B', 'G', 'R') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(12, 'R', 'G', 'B') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(48, 'B', 'G', 'R') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(48, 'R', 'G', 'B') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 11, '3', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 10, '3', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '3', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '1', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 11, '3', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 10, '3', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '3', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 8) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0, 8) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 9) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '1', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 9) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(9, 11, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 9) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(9, 10, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 9) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '1', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 11, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 10, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 10) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '1', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 11, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 10, '4', 'Y') },
{ AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 16) },
{ AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '4', 'Y') },
{ AV_CODEC_ID_NONE, 0 }
};
const AVCodecTag ff_nut_audio_tags[] = {
{ AV_CODEC_ID_PCM_ALAW, MKTAG('A', 'L', 'A', 'W') },
{ AV_CODEC_ID_PCM_MULAW, MKTAG('U', 'L', 'A', 'W') },
{ AV_CODEC_ID_PCM_F32BE, MKTAG(32, 'D', 'F', 'P') },
{ AV_CODEC_ID_PCM_F32LE, MKTAG('P', 'F', 'D', 32) },
{ AV_CODEC_ID_PCM_F64BE, MKTAG(64, 'D', 'F', 'P') },
{ AV_CODEC_ID_PCM_F64LE, MKTAG('P', 'F', 'D', 64) },
{ AV_CODEC_ID_PCM_S16BE, MKTAG(16, 'D', 'S', 'P') },
{ AV_CODEC_ID_PCM_S16LE, MKTAG('P', 'S', 'D', 16) },
{ AV_CODEC_ID_PCM_S24BE, MKTAG(24, 'D', 'S', 'P') },
{ AV_CODEC_ID_PCM_S24LE, MKTAG('P', 'S', 'D', 24) },
{ AV_CODEC_ID_PCM_S32BE, MKTAG(32, 'D', 'S', 'P') },
{ AV_CODEC_ID_PCM_S32LE, MKTAG('P', 'S', 'D', 32) },
{ AV_CODEC_ID_PCM_S8, MKTAG('P', 'S', 'D', 8) },
{ AV_CODEC_ID_PCM_U16BE, MKTAG(16, 'D', 'U', 'P') },
{ AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'U', 'D', 16) },
{ AV_CODEC_ID_PCM_U24BE, MKTAG(24, 'D', 'U', 'P') },
{ AV_CODEC_ID_PCM_U24LE, MKTAG('P', 'U', 'D', 24) },
{ AV_CODEC_ID_PCM_U32BE, MKTAG(32, 'D', 'U', 'P') },
{ AV_CODEC_ID_PCM_U32LE, MKTAG('P', 'U', 'D', 32) },
{ AV_CODEC_ID_PCM_U8, MKTAG('P', 'U', 'D', 8) },
{ AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16) },
{ AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24) },
{ AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32) },
{ AV_CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
{ AV_CODEC_ID_NONE, 0 }
};
const AVCodecTag * const ff_nut_codec_tags[] = {
ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
ff_codec_bmp_tags, ff_codec_wav_tags, ff_nut_data_tags, 0
};
void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
{
int i;
for (i = 0; i < nut->avf->nb_streams; i++)
nut->stream[i].last_pts =
av_rescale_rnd(val,
time_base.num * (int64_t)nut->stream[i].time_base->den,
time_base.den * (int64_t)nut->stream[i].time_base->num,
AV_ROUND_DOWN);
}
int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
{
int64_t mask = (1 << stream->msb_pts_shift) - 1;
int64_t delta = stream->last_pts - mask / 2;
return ((lsb - delta) & mask) + delta;
}
int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b)
{
return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32);
}
int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b)
{
return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32);
}
int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
{
Syncpoint *sp = av_mallocz(sizeof(Syncpoint));
struct AVTreeNode *node = av_tree_node_alloc();
if (!sp || !node) {
av_freep(&sp);
av_freep(&node);
return AVERROR(ENOMEM);
}
sp->pos = pos;
sp->back_ptr = back_ptr;
sp->ts = ts;
av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node);
if (node) {
av_free(sp);
av_free(node);
}
return 0;
}
static int enu_free(void *opaque, void *elem)
{
av_free(elem);
return 0;
}
void ff_nut_free_sp(NUTContext *nut)
{
av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
av_tree_destroy(nut->syncpoints);
}
const Dispositions ff_nut_dispositions[] = {
{ "default", AV_DISPOSITION_DEFAULT },
{ "dub", AV_DISPOSITION_DUB },
{ "original", AV_DISPOSITION_ORIGINAL },
{ "comment", AV_DISPOSITION_COMMENT },
{ "lyrics", AV_DISPOSITION_LYRICS },
{ "karaoke", AV_DISPOSITION_KARAOKE },
{ "", 0 }
};
const AVMetadataConv ff_nut_metadata_conv[] = {
{ "Author", "artist" },
{ "X-CreationTime", "date" },
{ "CreationTime", "date" },
{ "SourceFilename", "filename" },
{ "X-Language", "language" },
{ "X-Disposition", "disposition" },
{ "X-Replaces", "replaces" },
{ "X-Depends", "depends" },
{ "X-Uses", "uses" },
{ "X-UsesFont", "usesfont" },
{ 0 },
};
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