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Diffstat (limited to 'ffmpeg1/libavformat/flic.c')
-rw-r--r--ffmpeg1/libavformat/flic.c269
1 files changed, 0 insertions, 269 deletions
diff --git a/ffmpeg1/libavformat/flic.c b/ffmpeg1/libavformat/flic.c
deleted file mode 100644
index 8d49116..0000000
--- a/ffmpeg1/libavformat/flic.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * FLI/FLC Animation File Demuxer
- * Copyright (c) 2003 The ffmpeg Project
- *
- * 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
- */
-
-/**
- * @file
- * FLI/FLC file demuxer
- * by Mike Melanson (melanson@pcisys.net)
- * for more information on the .fli/.flc file format and all of its many
- * variations, visit:
- * http://www.compuphase.com/flic.htm
- *
- * This demuxer handles standard 0xAF11- and 0xAF12-type FLIs. It also handles
- * special FLIs from the PC games "Magic Carpet" and "X-COM: Terror from the Deep".
- */
-
-#include "libavutil/channel_layout.h"
-#include "libavutil/intreadwrite.h"
-#include "avformat.h"
-#include "internal.h"
-
-#define FLIC_FILE_MAGIC_1 0xAF11
-#define FLIC_FILE_MAGIC_2 0xAF12
-#define FLIC_FILE_MAGIC_3 0xAF44 /* Flic Type for Extended FLX Format which
- originated in Dave's Targa Animator (DTA) */
-#define FLIC_CHUNK_MAGIC_1 0xF1FA
-#define FLIC_CHUNK_MAGIC_2 0xF5FA
-#define FLIC_MC_SPEED 5 /* speed for Magic Carpet game FLIs */
-#define FLIC_DEFAULT_SPEED 5 /* for FLIs that have 0 speed */
-#define FLIC_TFTD_CHUNK_AUDIO 0xAAAA /* Audio chunk. Used in Terror from the Deep.
- Has 10 B extra header not accounted for in the chunk header */
-#define FLIC_TFTD_SAMPLE_RATE 22050
-
-#define FLIC_HEADER_SIZE 128
-#define FLIC_PREAMBLE_SIZE 6
-
-typedef struct FlicDemuxContext {
- int video_stream_index;
- int audio_stream_index;
- int frame_number;
-} FlicDemuxContext;
-
-static int flic_probe(AVProbeData *p)
-{
- int magic_number;
-
- if(p->buf_size < FLIC_HEADER_SIZE)
- return 0;
-
- magic_number = AV_RL16(&p->buf[4]);
- if ((magic_number != FLIC_FILE_MAGIC_1) &&
- (magic_number != FLIC_FILE_MAGIC_2) &&
- (magic_number != FLIC_FILE_MAGIC_3))
- return 0;
-
- if(AV_RL16(&p->buf[0x10]) != FLIC_CHUNK_MAGIC_1){
- if(AV_RL32(&p->buf[0x10]) > 2000)
- return 0;
- }
-
- if( AV_RL16(&p->buf[0x08]) > 4096
- || AV_RL16(&p->buf[0x0A]) > 4096)
- return 0;
-
-
- return AVPROBE_SCORE_MAX;
-}
-
-static int flic_read_header(AVFormatContext *s)
-{
- FlicDemuxContext *flic = s->priv_data;
- AVIOContext *pb = s->pb;
- unsigned char header[FLIC_HEADER_SIZE];
- AVStream *st, *ast;
- int speed;
- int magic_number;
- unsigned char preamble[FLIC_PREAMBLE_SIZE];
-
- flic->frame_number = 0;
-
- /* load the whole header and pull out the width and height */
- if (avio_read(pb, header, FLIC_HEADER_SIZE) != FLIC_HEADER_SIZE)
- return AVERROR(EIO);
-
- magic_number = AV_RL16(&header[4]);
- speed = AV_RL32(&header[0x10]);
- if (speed == 0)
- speed = FLIC_DEFAULT_SPEED;
-
- /* initialize the decoder streams */
- st = avformat_new_stream(s, NULL);
- if (!st)
- return AVERROR(ENOMEM);
- flic->video_stream_index = st->index;
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = AV_CODEC_ID_FLIC;
- st->codec->codec_tag = 0; /* no fourcc */
- st->codec->width = AV_RL16(&header[0x08]);
- st->codec->height = AV_RL16(&header[0x0A]);
-
- if (!st->codec->width || !st->codec->height) {
- /* Ugly hack needed for the following sample: */
- /* http://samples.mplayerhq.hu/fli-flc/fli-bugs/specular.flc */
- av_log(s, AV_LOG_WARNING,
- "File with no specified width/height. Trying 640x480.\n");
- st->codec->width = 640;
- st->codec->height = 480;
- }
-
- /* send over the whole 128-byte FLIC header */
- st->codec->extradata_size = FLIC_HEADER_SIZE;
- st->codec->extradata = av_malloc(FLIC_HEADER_SIZE);
- memcpy(st->codec->extradata, header, FLIC_HEADER_SIZE);
-
- /* peek at the preamble to detect TFTD videos - they seem to always start with an audio chunk */
- if (avio_read(pb, preamble, FLIC_PREAMBLE_SIZE) != FLIC_PREAMBLE_SIZE) {
- av_log(s, AV_LOG_ERROR, "Failed to peek at preamble\n");
- return AVERROR(EIO);
- }
-
- avio_seek(pb, -FLIC_PREAMBLE_SIZE, SEEK_CUR);
-
- /* Time to figure out the framerate:
- * If the first preamble's magic number is 0xAAAA then this file is from
- * X-COM: Terror from the Deep. If on the other hand there is a FLIC chunk
- * magic number at offset 0x10 assume this file is from Magic Carpet instead.
- * If neither of the above is true then this is a normal FLIC file.
- */
- if (AV_RL16(&preamble[4]) == FLIC_TFTD_CHUNK_AUDIO) {
- /* TFTD videos have an extra 22050 Hz 8-bit mono audio stream */
- ast = avformat_new_stream(s, NULL);
- if (!ast)
- return AVERROR(ENOMEM);
-
- flic->audio_stream_index = ast->index;
-
- /* all audio frames are the same size, so use the size of the first chunk for block_align */
- ast->codec->block_align = AV_RL32(&preamble[0]);
- ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- ast->codec->codec_id = AV_CODEC_ID_PCM_U8;
- ast->codec->codec_tag = 0;
- ast->codec->sample_rate = FLIC_TFTD_SAMPLE_RATE;
- ast->codec->channels = 1;
- ast->codec->bit_rate = st->codec->sample_rate * 8;
- ast->codec->bits_per_coded_sample = 8;
- ast->codec->channel_layout = AV_CH_LAYOUT_MONO;
- ast->codec->extradata_size = 0;
-
- /* Since the header information is incorrect we have to figure out the
- * framerate using block_align and the fact that the audio is 22050 Hz.
- * We usually have two cases: 2205 -> 10 fps and 1470 -> 15 fps */
- avpriv_set_pts_info(st, 64, ast->codec->block_align, FLIC_TFTD_SAMPLE_RATE);
- avpriv_set_pts_info(ast, 64, 1, FLIC_TFTD_SAMPLE_RATE);
- } else if (AV_RL16(&header[0x10]) == FLIC_CHUNK_MAGIC_1) {
- avpriv_set_pts_info(st, 64, FLIC_MC_SPEED, 70);
-
- /* rewind the stream since the first chunk is at offset 12 */
- avio_seek(pb, 12, SEEK_SET);
-
- /* send over abbreviated FLIC header chunk */
- av_free(st->codec->extradata);
- st->codec->extradata_size = 12;
- st->codec->extradata = av_malloc(12);
- memcpy(st->codec->extradata, header, 12);
-
- } else if (magic_number == FLIC_FILE_MAGIC_1) {
- avpriv_set_pts_info(st, 64, speed, 70);
- } else if ((magic_number == FLIC_FILE_MAGIC_2) ||
- (magic_number == FLIC_FILE_MAGIC_3)) {
- avpriv_set_pts_info(st, 64, speed, 1000);
- } else {
- av_log(s, AV_LOG_ERROR, "Invalid or unsupported magic chunk in file\n");
- return AVERROR_INVALIDDATA;
- }
-
- return 0;
-}
-
-static int flic_read_packet(AVFormatContext *s,
- AVPacket *pkt)
-{
- FlicDemuxContext *flic = s->priv_data;
- AVIOContext *pb = s->pb;
- int packet_read = 0;
- unsigned int size;
- int magic;
- int ret = 0;
- unsigned char preamble[FLIC_PREAMBLE_SIZE];
-
- while (!packet_read) {
-
- if ((ret = avio_read(pb, preamble, FLIC_PREAMBLE_SIZE)) !=
- FLIC_PREAMBLE_SIZE) {
- ret = AVERROR(EIO);
- break;
- }
-
- size = AV_RL32(&preamble[0]);
- magic = AV_RL16(&preamble[4]);
-
- if (((magic == FLIC_CHUNK_MAGIC_1) || (magic == FLIC_CHUNK_MAGIC_2)) && size > FLIC_PREAMBLE_SIZE) {
- if (av_new_packet(pkt, size)) {
- ret = AVERROR(EIO);
- break;
- }
- pkt->stream_index = flic->video_stream_index;
- pkt->pts = flic->frame_number++;
- pkt->pos = avio_tell(pb);
- memcpy(pkt->data, preamble, FLIC_PREAMBLE_SIZE);
- ret = avio_read(pb, pkt->data + FLIC_PREAMBLE_SIZE,
- size - FLIC_PREAMBLE_SIZE);
- if (ret != size - FLIC_PREAMBLE_SIZE) {
- av_free_packet(pkt);
- ret = AVERROR(EIO);
- }
- packet_read = 1;
- } else if (magic == FLIC_TFTD_CHUNK_AUDIO) {
- if (av_new_packet(pkt, size)) {
- ret = AVERROR(EIO);
- break;
- }
-
- /* skip useless 10B sub-header (yes, it's not accounted for in the chunk header) */
- avio_skip(pb, 10);
-
- pkt->stream_index = flic->audio_stream_index;
- pkt->pos = avio_tell(pb);
- ret = avio_read(pb, pkt->data, size);
-
- if (ret != size) {
- av_free_packet(pkt);
- ret = AVERROR(EIO);
- }
-
- packet_read = 1;
- } else {
- /* not interested in this chunk */
- avio_skip(pb, size - 6);
- }
- }
-
- return ret;
-}
-
-AVInputFormat ff_flic_demuxer = {
- .name = "flic",
- .long_name = NULL_IF_CONFIG_SMALL("FLI/FLC/FLX animation"),
- .priv_data_size = sizeof(FlicDemuxContext),
- .read_probe = flic_probe,
- .read_header = flic_read_header,
- .read_packet = flic_read_packet,
-};
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