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Diffstat (limited to 'ffmpeg1/libavformat/smush.c')
-rw-r--r--ffmpeg1/libavformat/smush.c240
1 files changed, 0 insertions, 240 deletions
diff --git a/ffmpeg1/libavformat/smush.c b/ffmpeg1/libavformat/smush.c
deleted file mode 100644
index 9c8997c..0000000
--- a/ffmpeg1/libavformat/smush.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * LucasArts Smush demuxer
- * Copyright (c) 2006 Cyril Zorin
- *
- * 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/intreadwrite.h"
-#include "avformat.h"
-#include "internal.h"
-#include "avio.h"
-
-typedef struct {
- int version;
- int audio_stream_index;
- int video_stream_index;
-} SMUSHContext;
-
-static int smush_read_probe(AVProbeData *p)
-{
- if (((AV_RL32(p->buf) == MKTAG('S', 'A', 'N', 'M') &&
- AV_RL32(p->buf + 8) == MKTAG('S', 'H', 'D', 'R')) ||
- (AV_RL32(p->buf) == MKTAG('A', 'N', 'I', 'M') &&
- AV_RL32(p->buf + 8) == MKTAG('A', 'H', 'D', 'R')))) {
- return AVPROBE_SCORE_MAX;
- }
-
- return 0;
-}
-
-static int smush_read_header(AVFormatContext *ctx)
-{
- SMUSHContext *smush = ctx->priv_data;
- AVIOContext *pb = ctx->pb;
- AVStream *vst, *ast;
- uint32_t magic, nframes, size, subversion, i;
- uint32_t width = 0, height = 0, got_audio = 0, read = 0;
- uint32_t sample_rate, channels, palette[256];
-
- magic = avio_rb32(pb);
- avio_skip(pb, 4); // skip movie size
-
- if (magic == MKBETAG('A', 'N', 'I', 'M')) {
- if (avio_rb32(pb) != MKBETAG('A', 'H', 'D', 'R'))
- return AVERROR_INVALIDDATA;
-
- size = avio_rb32(pb);
- if (size < 3 * 256 + 6)
- return AVERROR_INVALIDDATA;
-
- smush->version = 0;
- subversion = avio_rl16(pb);
- nframes = avio_rl16(pb);
-
- avio_skip(pb, 2); // skip pad
-
- for (i = 0; i < 256; i++)
- palette[i] = avio_rb24(pb);
-
- avio_skip(pb, size - (3 * 256 + 6));
- } else if (magic == MKBETAG('S', 'A', 'N', 'M') ) {
- if (avio_rb32(pb) != MKBETAG('S', 'H', 'D', 'R'))
- return AVERROR_INVALIDDATA;
-
- size = avio_rb32(pb);
- if (size < 14)
- return AVERROR_INVALIDDATA;
-
- smush->version = 1;
- subversion = avio_rl16(pb);
- nframes = avio_rl32(pb);
- avio_skip(pb, 2); // skip pad
- width = avio_rl16(pb);
- height = avio_rl16(pb);
- avio_skip(pb, 2); // skip pad
- avio_skip(pb, size - 14);
-
- if (avio_rb32(pb) != MKBETAG('F', 'L', 'H', 'D'))
- return AVERROR_INVALIDDATA;
-
- size = avio_rb32(pb);
- while (!got_audio && ((read + 8) < size)) {
- uint32_t sig, chunk_size;
-
- if (url_feof(pb))
- return AVERROR_EOF;
-
- sig = avio_rb32(pb);
- chunk_size = avio_rb32(pb);
- read += 8;
- switch (sig) {
- case MKBETAG('W', 'a', 'v', 'e'):
- got_audio = 1;
- sample_rate = avio_rl32(pb);
- channels = avio_rl32(pb);
- avio_skip(pb, chunk_size - 8);
- read += chunk_size;
- break;
- case MKBETAG('B', 'l', '1', '6'):
- case MKBETAG('A', 'N', 'N', 'O'):
- avio_skip(pb, chunk_size);
- read += chunk_size;
- break;
- default:
- return AVERROR_INVALIDDATA;
- break;
- }
- }
-
- avio_skip(pb, size - read);
- } else {
- av_log(ctx, AV_LOG_ERROR, "Wrong magic\n");
- return AVERROR_INVALIDDATA;
- }
-
- vst = avformat_new_stream(ctx, 0);
- if (!vst)
- return AVERROR(ENOMEM);
-
- smush->video_stream_index = vst->index;
-
- vst->start_time = 0;
- vst->duration =
- vst->nb_frames = nframes;
- vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- vst->codec->codec_id = AV_CODEC_ID_SANM;
- vst->codec->codec_tag = 0;
- vst->codec->width = width;
- vst->codec->height = height;
-
- avpriv_set_pts_info(vst, 64, 66667, 1000000);
-
- if (!smush->version) {
- vst->codec->extradata = av_malloc(1024 + 2 + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!vst->codec->extradata)
- return AVERROR(ENOMEM);
-
- vst->codec->extradata_size = 1024 + 2;
- AV_WL16(vst->codec->extradata, subversion);
- for (i = 0; i < 256; i++)
- AV_WL32(vst->codec->extradata + 2 + i * 4, palette[i]);
- }
-
- if (got_audio) {
- ast = avformat_new_stream(ctx, 0);
- if (!ast)
- return AVERROR(ENOMEM);
-
- smush->audio_stream_index = ast->index;
-
- ast->start_time = 0;
- ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- ast->codec->codec_id = AV_CODEC_ID_VIMA;
- ast->codec->codec_tag = 0;
- ast->codec->sample_rate = sample_rate;
- ast->codec->channels = channels;
-
- avpriv_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
- }
-
- return 0;
-}
-
-static int smush_read_packet(AVFormatContext *ctx, AVPacket *pkt)
-{
- SMUSHContext *smush = ctx->priv_data;
- AVIOContext *pb = ctx->pb;
- int done = 0;
-
- while (!done) {
- uint32_t sig, size;
-
- if (url_feof(pb))
- return AVERROR_EOF;
-
- sig = avio_rb32(pb);
- size = avio_rb32(pb);
-
- switch (sig) {
- case MKBETAG('F', 'R', 'M', 'E'):
- if (smush->version)
- break;
- if (av_get_packet(pb, pkt, size) < 0)
- return AVERROR(EIO);
-
- pkt->stream_index = smush->video_stream_index;
- done = 1;
- break;
- case MKBETAG('B', 'l', '1', '6'):
- if (av_get_packet(pb, pkt, size) < 0)
- return AVERROR(EIO);
-
- pkt->stream_index = smush->video_stream_index;
- pkt->duration = 1;
- done = 1;
- break;
- case MKBETAG('W', 'a', 'v', 'e'):
- if (size < 13)
- return AVERROR_INVALIDDATA;
- if (av_get_packet(pb, pkt, size) < 13)
- return AVERROR(EIO);
-
- pkt->stream_index = smush->audio_stream_index;
- pkt->flags |= AV_PKT_FLAG_KEY;
- pkt->duration = AV_RB32(pkt->data);
- if (pkt->duration == 0xFFFFFFFFu)
- pkt->duration = AV_RB32(pkt->data + 8);
- done = 1;
- break;
- default:
- avio_skip(pb, size);
- break;
- }
- }
-
- return 0;
-}
-
-AVInputFormat ff_smush_demuxer = {
- .name = "smush",
- .long_name = NULL_IF_CONFIG_SMALL("LucasArts Smush"),
- .priv_data_size = sizeof(SMUSHContext),
- .read_probe = smush_read_probe,
- .read_header = smush_read_header,
- .read_packet = smush_read_packet,
-};
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