chasing indexing error

1 files changed, 0 insertions, 262 deletions

diff --git a/ffmpeg/libavformat/paf.c b/ffmpeg/libavformat/paf.c
deleted file mode 100644
index 09aefe6..0000000
--- a/ffmpeg/libavformat/paf.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Packed Animation File demuxer
- * Copyright (c) 2012 Paul B Mahol
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "libavutil/channel_layout.h"
-#include "libavcodec/paf.h"
-#include "avformat.h"
-#include "internal.h"
-
-#define MAGIC "Packed Animation File V1.0\n(c) 1992-96 Amazing Studio\x0a\x1a"
-
-typedef struct {
-    uint32_t buffer_size;
-    uint32_t frame_blks;
-    uint32_t nb_frames;
-    uint32_t start_offset;
-    uint32_t preload_count;
-    uint32_t max_video_blks;
-    uint32_t max_audio_blks;
-
-    uint32_t current_frame;
-    uint32_t current_frame_count;
-    uint32_t current_frame_block;
-
-    uint32_t *blocks_count_table;
-    uint32_t *frames_offset_table;
-    uint32_t *blocks_offset_table;
-
-    uint8_t  *video_frame;
-    int      video_size;
-
-    uint8_t  *audio_frame;
-    uint8_t  *temp_audio_frame;
-    int      audio_size;
-
-    int      got_audio;
-} PAFDemuxContext;
-
-static int read_probe(AVProbeData *p)
-{
-    if ((p->buf_size >= strlen(MAGIC)) &&
-        !memcmp(p->buf, MAGIC, strlen(MAGIC)))
-        return AVPROBE_SCORE_MAX;
-    return 0;
-}
-
-static int read_close(AVFormatContext *s)
-{
-    PAFDemuxContext *p = s->priv_data;
-
-    av_freep(&p->blocks_count_table);
-    av_freep(&p->frames_offset_table);
-    av_freep(&p->blocks_offset_table);
-    av_freep(&p->video_frame);
-    av_freep(&p->audio_frame);
-    av_freep(&p->temp_audio_frame);
-
-    return 0;
-}
-
-static void read_table(AVFormatContext *s, uint32_t *table, uint32_t count)
-{
-    int i;
-
-    for (i = 0; i < count; i++)
-        table[i] = avio_rl32(s->pb);
-
-    avio_skip(s->pb, 4 * (FFALIGN(count, 512) - count));
-}
-
-static int read_header(AVFormatContext *s)
-{
-    PAFDemuxContext *p = s->priv_data;
-    AVIOContext     *pb = s->pb;
-    AVStream        *ast, *vst;
-    int             ret = 0;
-
-    avio_skip(pb, 132);
-
-    vst = avformat_new_stream(s, 0);
-    if (!vst)
-        return AVERROR(ENOMEM);
-
-    vst->start_time = 0;
-    vst->nb_frames  =
-    vst->duration   =
-    p->nb_frames = avio_rl32(pb);
-    avio_skip(pb, 4);
-    vst->codec->width  = avio_rl32(pb);
-    vst->codec->height = avio_rl32(pb);
-    avio_skip(pb, 4);
-    vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    vst->codec->codec_tag  = 0;
-    vst->codec->codec_id   = AV_CODEC_ID_PAF_VIDEO;
-    avpriv_set_pts_info(vst, 64, 1, 10);
-
-    ast = avformat_new_stream(s, 0);
-    if (!ast)
-        return AVERROR(ENOMEM);
-
-    ast->start_time         = 0;
-    ast->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
-    ast->codec->codec_tag   = 0;
-    ast->codec->codec_id    = AV_CODEC_ID_PAF_AUDIO;
-    ast->codec->channels    = 2;
-    ast->codec->channel_layout = AV_CH_LAYOUT_STEREO;
-    ast->codec->sample_rate = 22050;
-    avpriv_set_pts_info(ast, 64, 1, 22050);
-
-    p->buffer_size    = avio_rl32(pb);
-    p->preload_count  = avio_rl32(pb);
-    p->frame_blks     = avio_rl32(pb);
-    p->start_offset   = avio_rl32(pb);
-    p->max_video_blks = avio_rl32(pb);
-    p->max_audio_blks = avio_rl32(pb);
-    if (p->buffer_size    < 175  ||
-        p->max_audio_blks < 2    ||
-        p->max_video_blks < 1    ||
-        p->frame_blks     < 1    ||
-        p->nb_frames      < 1    ||
-        p->preload_count  < 1    ||
-        p->buffer_size    > 2048 ||
-        p->max_video_blks > 2048 ||
-        p->max_audio_blks > 2048 ||
-        p->nb_frames      > INT_MAX / sizeof(uint32_t) ||
-        p->frame_blks     > INT_MAX / sizeof(uint32_t))
-        return AVERROR_INVALIDDATA;
-
-    p->blocks_count_table  = av_mallocz(p->nb_frames  * sizeof(uint32_t));
-    p->frames_offset_table = av_mallocz(p->nb_frames  * sizeof(uint32_t));
-    p->blocks_offset_table = av_mallocz(p->frame_blks * sizeof(uint32_t));
-
-    p->video_size          = p->max_video_blks * p->buffer_size;
-    p->video_frame         = av_mallocz(p->video_size);
-
-    p->audio_size          = p->max_audio_blks * p->buffer_size;
-    p->audio_frame         = av_mallocz(p->audio_size);
-    p->temp_audio_frame    = av_mallocz(p->audio_size);
-
-    if (!p->blocks_count_table  ||
-        !p->frames_offset_table ||
-        !p->blocks_offset_table ||
-        !p->video_frame         ||
-        !p->audio_frame         ||
-        !p->temp_audio_frame) {
-        ret = AVERROR(ENOMEM);
-        goto fail;
-    }
-
-    avio_seek(pb, p->buffer_size, SEEK_SET);
-
-    read_table(s, p->blocks_count_table,  p->nb_frames);
-    read_table(s, p->frames_offset_table, p->nb_frames);
-    read_table(s, p->blocks_offset_table, p->frame_blks);
-
-    p->got_audio = 0;
-    p->current_frame = 0;
-    p->current_frame_block = 0;
-
-    avio_seek(pb, p->start_offset, SEEK_SET);
-
-    return 0;
-
-fail:
-    read_close(s);
-
-    return ret;
-}
-
-static int read_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    PAFDemuxContext *p = s->priv_data;
-    AVIOContext     *pb = s->pb;
-    uint32_t        count, offset;
-    int             size, i;
-
-    if (p->current_frame >= p->nb_frames)
-        return AVERROR_EOF;
-
-    if (url_feof(pb))
-        return AVERROR_EOF;
-
-    if (p->got_audio) {
-        if (av_new_packet(pkt, p->audio_size) < 0)
-            return AVERROR(ENOMEM);
-
-        memcpy(pkt->data, p->temp_audio_frame, p->audio_size);
-        pkt->duration     = PAF_SOUND_SAMPLES * (p->audio_size / PAF_SOUND_FRAME_SIZE);
-        pkt->flags       |= AV_PKT_FLAG_KEY;
-        pkt->stream_index = 1;
-        p->got_audio      = 0;
-        return pkt->size;
-    }
-
-    count = (p->current_frame == 0) ? p->preload_count : p->blocks_count_table[p->current_frame - 1];
-    for (i = 0; i < count; i++) {
-        if (p->current_frame_block >= p->frame_blks)
-            return AVERROR_INVALIDDATA;
-
-        offset = p->blocks_offset_table[p->current_frame_block] & ~(1U << 31);
-        if (p->blocks_offset_table[p->current_frame_block] & (1U << 31)) {
-            if (offset > p->audio_size - p->buffer_size)
-                return AVERROR_INVALIDDATA;
-
-            avio_read(pb, p->audio_frame + offset, p->buffer_size);
-            if (offset == (p->max_audio_blks - 2) * p->buffer_size) {
-                memcpy(p->temp_audio_frame, p->audio_frame, p->audio_size);
-                p->got_audio = 1;
-            }
-        } else {
-            if (offset > p->video_size - p->buffer_size)
-                return AVERROR_INVALIDDATA;
-
-            avio_read(pb, p->video_frame + offset, p->buffer_size);
-        }
-        p->current_frame_block++;
-    }
-
-    if (p->frames_offset_table[p->current_frame] >= p->video_size)
-        return AVERROR_INVALIDDATA;
-
-    size = p->video_size - p->frames_offset_table[p->current_frame];
-
-    if (av_new_packet(pkt, size) < 0)
-        return AVERROR(ENOMEM);
-
-    pkt->stream_index = 0;
-    pkt->duration     = 1;
-    memcpy(pkt->data, p->video_frame + p->frames_offset_table[p->current_frame], size);
-    if (pkt->data[0] & 0x20)
-        pkt->flags   |= AV_PKT_FLAG_KEY;
-    p->current_frame++;
-
-    return pkt->size;
-}
-
-AVInputFormat ff_paf_demuxer = {
-    .name           = "paf",
-    .long_name      = NULL_IF_CONFIG_SMALL("Amazing Studio Packed Animation File"),
-    .priv_data_size = sizeof(PAFDemuxContext),
-    .read_probe     = read_probe,
-    .read_header    = read_header,
-    .read_packet    = read_packet,
-    .read_close     = read_close,
-};