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Diffstat (limited to 'contrib/ffmpeg/libavformat/siff.c')
-rw-r--r--contrib/ffmpeg/libavformat/siff.c237
1 files changed, 0 insertions, 237 deletions
diff --git a/contrib/ffmpeg/libavformat/siff.c b/contrib/ffmpeg/libavformat/siff.c
deleted file mode 100644
index 00b4eaa9d..000000000
--- a/contrib/ffmpeg/libavformat/siff.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * Beam Software SIFF demuxer
- * Copyright (c) 2007 Konstantin Shishkov.
- *
- * 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 "avformat.h"
-#include "riff.h"
-
-enum SIFFTags{
- TAG_SIFF = MKTAG('S', 'I', 'F', 'F'),
- TAG_BODY = MKTAG('B', 'O', 'D', 'Y'),
- TAG_VBHD = MKTAG('V', 'B', 'H', 'D'),
- TAG_SHDR = MKTAG('S', 'H', 'D', 'R'),
- TAG_VBV1 = MKTAG('V', 'B', 'V', '1'),
- TAG_SOUN = MKTAG('S', 'O', 'U', 'N'),
-};
-
-enum VBFlags{
- VB_HAS_GMC = 0x01,
- VB_HAS_AUDIO = 0x04,
- VB_HAS_VIDEO = 0x08,
- VB_HAS_PALETTE = 0x10,
- VB_HAS_LENGTH = 0x20
-};
-
-typedef struct SIFFContext{
- int frames;
- int cur_frame;
- int rate;
- int bits;
- int block_align;
-
- int has_video;
- int has_audio;
-
- int curstrm;
- int pktsize;
- int gmcsize;
- int sndsize;
-
- int flags;
- uint8_t gmc[4];
-}SIFFContext;
-
-static int siff_probe(AVProbeData *p)
-{
- /* check file header */
- if (AV_RL32(p->buf) == TAG_SIFF)
- return AVPROBE_SCORE_MAX;
- else
- return 0;
-}
-
-static int create_audio_stream(AVFormatContext *s, SIFFContext *c)
-{
- AVStream *ast;
- ast = av_new_stream(s, 0);
- if (!ast)
- return -1;
- ast->codec->codec_type = CODEC_TYPE_AUDIO;
- ast->codec->codec_id = CODEC_ID_PCM_U8;
- ast->codec->channels = 1;
- ast->codec->bits_per_sample = c->bits;
- ast->codec->sample_rate = c->rate;
- ast->codec->frame_size = c->block_align;
- av_set_pts_info(ast, 16, 1, c->rate);
- return 0;
-}
-
-static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, ByteIOContext *pb)
-{
- AVStream *st;
- int width, height;
-
- if (get_le32(pb) != TAG_VBHD){
- av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
- return -1;
- }
- if(get_be32(pb) != 32){
- av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
- return -1;
- }
- if(get_le16(pb) != 1){
- av_log(s, AV_LOG_ERROR, "Incorrect header version\n");
- return -1;
- }
- width = get_le16(pb);
- height = get_le16(pb);
- url_fskip(pb, 4);
- c->frames = get_le16(pb);
- if(!c->frames){
- av_log(s, AV_LOG_ERROR, "File contains no frames ???\n");
- return -1;
- }
- c->bits = get_le16(pb);
- c->rate = get_le16(pb);
- c->block_align = c->rate * (c->bits >> 3);
-
- url_fskip(pb, 16); //zeroes
-
- st = av_new_stream(s, 0);
- if (!st)
- return -1;
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_VB;
- st->codec->codec_tag = MKTAG('V', 'B', 'V', '1');
- st->codec->width = width;
- st->codec->height = height;
- st->codec->pix_fmt = PIX_FMT_PAL8;
- av_set_pts_info(st, 16, 1, 12);
-
- c->cur_frame = 0;
- c->has_video = 1;
- c->has_audio = !!c->rate;
- c->curstrm = -1;
- if (c->has_audio && create_audio_stream(s, c) < 0)
- return -1;
- return 0;
-}
-
-static int siff_parse_soun(AVFormatContext *s, SIFFContext *c, ByteIOContext *pb)
-{
- if (get_le32(pb) != TAG_SHDR){
- av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
- return -1;
- }
- if(get_be32(pb) != 8){
- av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
- return -1;
- }
- url_fskip(pb, 4); //unknown value
- c->rate = get_le16(pb);
- c->bits = get_le16(pb);
- c->block_align = c->rate * (c->bits >> 3);
- return create_audio_stream(s, c);
-}
-
-static int siff_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- ByteIOContext *pb = s->pb;
- SIFFContext *c = s->priv_data;
- uint32_t tag;
-
- if (get_le32(pb) != TAG_SIFF)
- return -1;
- url_fskip(pb, 4); //ignore size
- tag = get_le32(pb);
-
- if (tag != TAG_VBV1 && tag != TAG_SOUN){
- av_log(s, AV_LOG_ERROR, "Not a VBV file\n");
- return -1;
- }
-
- if (tag == TAG_VBV1 && siff_parse_vbv1(s, c, pb) < 0)
- return -1;
- if (tag == TAG_SOUN && siff_parse_soun(s, c, pb) < 0)
- return -1;
- if (get_le32(pb) != MKTAG('B', 'O', 'D', 'Y')){
- av_log(s, AV_LOG_ERROR, "'BODY' chunk is missing\n");
- return -1;
- }
- url_fskip(pb, 4); //ignore size
-
- return 0;
-}
-
-static int siff_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
- SIFFContext *c = s->priv_data;
- int size;
-
- if (c->has_video){
- if (c->cur_frame >= c->frames)
- return AVERROR(EIO);
- if (c->curstrm == -1){
- c->pktsize = get_le32(s->pb) - 4;
- c->flags = get_le16(s->pb);
- c->gmcsize = (c->flags & VB_HAS_GMC) ? 4 : 0;
- if (c->gmcsize)
- get_buffer(s->pb, c->gmc, c->gmcsize);
- c->sndsize = (c->flags & VB_HAS_AUDIO) ? get_le32(s->pb): 0;
- c->curstrm = !!(c->flags & VB_HAS_AUDIO);
- }
-
- if (!c->curstrm){
- size = c->pktsize - c->sndsize;
- if (av_new_packet(pkt, size) < 0)
- return AVERROR(ENOMEM);
- AV_WL16(pkt->data, c->flags);
- if (c->gmcsize)
- memcpy(pkt->data + 2, c->gmc, c->gmcsize);
- get_buffer(s->pb, pkt->data + 2 + c->gmcsize, size - c->gmcsize - 2);
- pkt->stream_index = 0;
- c->curstrm = -1;
- }else{
- if (av_get_packet(s->pb, pkt, c->sndsize - 4) < 0)
- return AVERROR(EIO);
- pkt->stream_index = 1;
- c->curstrm = 0;
- }
- if(!c->cur_frame || c->curstrm)
- pkt->flags |= PKT_FLAG_KEY;
- if (c->curstrm == -1)
- c->cur_frame++;
- }else{
- size = av_get_packet(s->pb, pkt, c->block_align);
- if(size <= 0)
- return AVERROR(EIO);
- }
- return pkt->size;
-}
-
-AVInputFormat siff_demuxer = {
- "siff",
- "Beam Software SIFF",
- sizeof(SIFFContext),
- siff_probe,
- siff_read_header,
- siff_read_packet,
- .extensions = "vb,son"
-};
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