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Diffstat (limited to 'ffmpeg1/libavformat/bintext.c')
-rw-r--r--ffmpeg1/libavformat/bintext.c409
1 files changed, 0 insertions, 409 deletions
diff --git a/ffmpeg1/libavformat/bintext.c b/ffmpeg1/libavformat/bintext.c
deleted file mode 100644
index 91f95f3..0000000
--- a/ffmpeg1/libavformat/bintext.c
+++ /dev/null
@@ -1,409 +0,0 @@
-/*
- * Binary text demuxer
- * eXtended BINary text (XBIN) demuxer
- * Artworx Data Format demuxer
- * iCEDraw File demuxer
- * Copyright (c) 2010 Peter Ross <pross@xvid.org>
- *
- * 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
- * Binary text demuxer
- * eXtended BINary text (XBIN) demuxer
- * Artworx Data Format demuxer
- * iCEDraw File demuxer
- */
-
-#include "libavutil/intreadwrite.h"
-#include "libavutil/opt.h"
-#include "libavutil/parseutils.h"
-#include "avformat.h"
-#include "internal.h"
-#include "sauce.h"
-#include "libavcodec/bintext.h"
-
-typedef struct {
- const AVClass *class;
- int chars_per_frame; /**< characters to send decoder per frame;
- set by private options as characters per second, and then
- converted to characters per frame at runtime */
- char *video_size; /**< video size (WxH pixels) (private option) */
- char *framerate; /**< frames per second (private option) */
- uint64_t fsize; /**< file size less metadata buffer */
-} BinDemuxContext;
-
-static AVStream * init_stream(AVFormatContext *s)
-{
- BinDemuxContext *bin = s->priv_data;
- AVStream *st = avformat_new_stream(s, NULL);
- if (!st)
- return NULL;
- st->codec->codec_tag = 0;
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-
- if (bin->video_size) {
- if (av_parse_video_size(&st->codec->width, &st->codec->height, bin->video_size) < 0) {
- av_log(s, AV_LOG_ERROR, "Could not parse video size: '%s'\n", bin->video_size);
- return NULL;
- }
- } else {
- st->codec->width = (80<<3);
- st->codec->height = (25<<4);
- }
-
- if (bin->framerate) {
- AVRational framerate;
- if (av_parse_video_rate(&framerate, bin->framerate) < 0) {
- av_log(s, AV_LOG_ERROR, "Could not parse framerate: '%s'\n", bin->framerate);
- return NULL;
- }
- avpriv_set_pts_info(st, 60, framerate.den, framerate.num);
- } else {
- avpriv_set_pts_info(st, 60, 1, 25);
- }
-
- /* simulate tty display speed */
- bin->chars_per_frame = FFMAX(av_q2d(st->time_base) * bin->chars_per_frame, 1);
-
- return st;
-}
-
-#if CONFIG_BINTEXT_DEMUXER | CONFIG_ADF_DEMUXER | CONFIG_IDF_DEMUXER
-/**
- * Given filesize and width, calculate height (assume font_height of 16)
- */
-static void calculate_height(AVCodecContext *avctx, uint64_t fsize)
-{
- avctx->height = (fsize / ((avctx->width>>3)*2)) << 4;
-}
-#endif
-
-#if CONFIG_BINTEXT_DEMUXER
-static const uint8_t next_magic[]={
- 0x1A, 0x1B, '[', '0', ';', '3', '0', ';', '4', '0', 'm', 'N', 'E', 'X', 'T', 0x00
-};
-
-static int next_tag_read(AVFormatContext *avctx, uint64_t *fsize)
-{
- AVIOContext *pb = avctx->pb;
- char buf[36];
- int len;
- uint64_t start_pos = avio_size(pb) - 256;
-
- avio_seek(pb, start_pos, SEEK_SET);
- if (avio_read(pb, buf, sizeof(next_magic)) != sizeof(next_magic))
- return -1;
- if (memcmp(buf, next_magic, sizeof(next_magic)))
- return -1;
- if (avio_r8(pb) != 0x01)
- return -1;
-
- *fsize -= 256;
-
-#define GET_EFI2_META(name,size) \
- len = avio_r8(pb); \
- if (len < 1 || len > size) \
- return -1; \
- if (avio_read(pb, buf, size) == size && *buf) { \
- buf[len] = 0; \
- av_dict_set(&avctx->metadata, name, buf, 0); \
- }
-
- GET_EFI2_META("filename", 12)
- GET_EFI2_META("author", 20)
- GET_EFI2_META("publisher", 20)
- GET_EFI2_META("title", 35)
-
- return 0;
-}
-
-static void predict_width(AVCodecContext *avctx, uint64_t fsize, int got_width)
-{
- /** attempt to guess width */
- if (!got_width)
- avctx->width = fsize > 4000 ? (160<<3) : (80<<3);
-}
-
-static int bintext_read_header(AVFormatContext *s)
-{
- BinDemuxContext *bin = s->priv_data;
- AVIOContext *pb = s->pb;
-
- AVStream *st = init_stream(s);
- if (!st)
- return AVERROR(ENOMEM);
- st->codec->codec_id = AV_CODEC_ID_BINTEXT;
-
- st->codec->extradata_size = 2;
- st->codec->extradata = av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!st->codec->extradata)
- return AVERROR(ENOMEM);
- st->codec->extradata[0] = 16;
- st->codec->extradata[1] = 0;
-
- if (pb->seekable) {
- int got_width = 0;
- bin->fsize = avio_size(pb);
- if (ff_sauce_read(s, &bin->fsize, &got_width, 0) < 0)
- next_tag_read(s, &bin->fsize);
- if (!bin->video_size) {
- predict_width(st->codec, bin->fsize, got_width);
- calculate_height(st->codec, bin->fsize);
- }
- avio_seek(pb, 0, SEEK_SET);
- }
- return 0;
-}
-#endif /* CONFIG_BINTEXT_DEMUXER */
-
-#if CONFIG_XBIN_DEMUXER
-static int xbin_probe(AVProbeData *p)
-{
- const uint8_t *d = p->buf;
-
- if (AV_RL32(d) == MKTAG('X','B','I','N') && d[4] == 0x1A &&
- AV_RL16(d+5) > 0 && AV_RL16(d+5) <= 160 &&
- d[9] > 0 && d[9] <= 32)
- return AVPROBE_SCORE_MAX;
- return 0;
-}
-
-static int xbin_read_header(AVFormatContext *s)
-{
- BinDemuxContext *bin = s->priv_data;
- AVIOContext *pb = s->pb;
- char fontheight, flags;
-
- AVStream *st = init_stream(s);
- if (!st)
- return AVERROR(ENOMEM);
-
- avio_skip(pb, 5);
- st->codec->width = avio_rl16(pb)<<3;
- st->codec->height = avio_rl16(pb);
- fontheight = avio_r8(pb);
- st->codec->height *= fontheight;
- flags = avio_r8(pb);
-
- st->codec->extradata_size = 2;
- if ((flags & BINTEXT_PALETTE))
- st->codec->extradata_size += 48;
- if ((flags & BINTEXT_FONT))
- st->codec->extradata_size += fontheight * (flags & 0x10 ? 512 : 256);
- st->codec->codec_id = flags & 4 ? AV_CODEC_ID_XBIN : AV_CODEC_ID_BINTEXT;
-
- st->codec->extradata = av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!st->codec->extradata)
- return AVERROR(ENOMEM);
- st->codec->extradata[0] = fontheight;
- st->codec->extradata[1] = flags;
- if (avio_read(pb, st->codec->extradata + 2, st->codec->extradata_size - 2) < 0)
- return AVERROR(EIO);
-
- if (pb->seekable) {
- bin->fsize = avio_size(pb) - 9 - st->codec->extradata_size;
- ff_sauce_read(s, &bin->fsize, NULL, 0);
- avio_seek(pb, 9 + st->codec->extradata_size, SEEK_SET);
- }
-
- return 0;
-}
-#endif /* CONFIG_XBIN_DEMUXER */
-
-#if CONFIG_ADF_DEMUXER
-static int adf_read_header(AVFormatContext *s)
-{
- BinDemuxContext *bin = s->priv_data;
- AVIOContext *pb = s->pb;
- AVStream *st;
-
- if (avio_r8(pb) != 1)
- return AVERROR_INVALIDDATA;
-
- st = init_stream(s);
- if (!st)
- return AVERROR(ENOMEM);
- st->codec->codec_id = AV_CODEC_ID_BINTEXT;
-
- st->codec->extradata_size = 2 + 48 + 4096;
- st->codec->extradata = av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!st->codec->extradata)
- return AVERROR(ENOMEM);
- st->codec->extradata[0] = 16;
- st->codec->extradata[1] = BINTEXT_PALETTE|BINTEXT_FONT;
-
- if (avio_read(pb, st->codec->extradata + 2, 24) < 0)
- return AVERROR(EIO);
- avio_skip(pb, 144);
- if (avio_read(pb, st->codec->extradata + 2 + 24, 24) < 0)
- return AVERROR(EIO);
- if (avio_read(pb, st->codec->extradata + 2 + 48, 4096) < 0)
- return AVERROR(EIO);
-
- if (pb->seekable) {
- int got_width = 0;
- bin->fsize = avio_size(pb) - 1 - 192 - 4096;
- st->codec->width = 80<<3;
- ff_sauce_read(s, &bin->fsize, &got_width, 0);
- if (!bin->video_size)
- calculate_height(st->codec, bin->fsize);
- avio_seek(pb, 1 + 192 + 4096, SEEK_SET);
- }
- return 0;
-}
-#endif /* CONFIG_ADF_DEMUXER */
-
-#if CONFIG_IDF_DEMUXER
-static const uint8_t idf_magic[] = {
- 0x04, 0x31, 0x2e, 0x34, 0x00, 0x00, 0x00, 0x00, 0x4f, 0x00, 0x15, 0x00
-};
-
-static int idf_probe(AVProbeData *p)
-{
- if (p->buf_size < sizeof(idf_magic))
- return 0;
- if (!memcmp(p->buf, idf_magic, sizeof(idf_magic)))
- return AVPROBE_SCORE_MAX;
- return 0;
-}
-
-static int idf_read_header(AVFormatContext *s)
-{
- BinDemuxContext *bin = s->priv_data;
- AVIOContext *pb = s->pb;
- AVStream *st;
- int got_width = 0;
-
- if (!pb->seekable)
- return AVERROR(EIO);
-
- st = init_stream(s);
- if (!st)
- return AVERROR(ENOMEM);
- st->codec->codec_id = AV_CODEC_ID_IDF;
-
- st->codec->extradata_size = 2 + 48 + 4096;
- st->codec->extradata = av_malloc(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!st->codec->extradata)
- return AVERROR(ENOMEM);
- st->codec->extradata[0] = 16;
- st->codec->extradata[1] = BINTEXT_PALETTE|BINTEXT_FONT;
-
- avio_seek(pb, avio_size(pb) - 4096 - 48, SEEK_SET);
-
- if (avio_read(pb, st->codec->extradata + 2 + 48, 4096) < 0)
- return AVERROR(EIO);
- if (avio_read(pb, st->codec->extradata + 2, 48) < 0)
- return AVERROR(EIO);
-
- bin->fsize = avio_size(pb) - 12 - 4096 - 48;
- ff_sauce_read(s, &bin->fsize, &got_width, 0);
- if (!bin->video_size)
- calculate_height(st->codec, bin->fsize);
- avio_seek(pb, 12, SEEK_SET);
- return 0;
-}
-#endif /* CONFIG_IDF_DEMUXER */
-
-static int read_packet(AVFormatContext *s,
- AVPacket *pkt)
-{
- BinDemuxContext *bin = s->priv_data;
-
- if (bin->fsize > 0) {
- if (av_get_packet(s->pb, pkt, bin->fsize) < 0)
- return AVERROR(EIO);
- bin->fsize = -1; /* done */
- } else if (!bin->fsize) {
- if (url_feof(s->pb))
- return AVERROR(EIO);
- if (av_get_packet(s->pb, pkt, bin->chars_per_frame) < 0)
- return AVERROR(EIO);
- } else {
- return AVERROR(EIO);
- }
-
- pkt->flags |= AV_PKT_FLAG_KEY;
- return 0;
-}
-
-#define OFFSET(x) offsetof(BinDemuxContext, x)
-static const AVOption options[] = {
- { "linespeed", "set simulated line speed (bytes per second)", OFFSET(chars_per_frame), AV_OPT_TYPE_INT, {.i64 = 6000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM},
- { "video_size", "set video size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
- { "framerate", "set framerate (frames per second)", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
- { NULL },
-};
-
-#define CLASS(name) \
-(const AVClass[1]){{ \
- .class_name = name, \
- .item_name = av_default_item_name, \
- .option = options, \
- .version = LIBAVUTIL_VERSION_INT, \
-}}
-
-#if CONFIG_BINTEXT_DEMUXER
-AVInputFormat ff_bintext_demuxer = {
- .name = "bin",
- .long_name = NULL_IF_CONFIG_SMALL("Binary text"),
- .priv_data_size = sizeof(BinDemuxContext),
- .read_header = bintext_read_header,
- .read_packet = read_packet,
- .extensions = "bin",
- .priv_class = CLASS("Binary text demuxer"),
-};
-#endif
-
-#if CONFIG_XBIN_DEMUXER
-AVInputFormat ff_xbin_demuxer = {
- .name = "xbin",
- .long_name = NULL_IF_CONFIG_SMALL("eXtended BINary text (XBIN)"),
- .priv_data_size = sizeof(BinDemuxContext),
- .read_probe = xbin_probe,
- .read_header = xbin_read_header,
- .read_packet = read_packet,
- .priv_class = CLASS("eXtended BINary text (XBIN) demuxer"),
-};
-#endif
-
-#if CONFIG_ADF_DEMUXER
-AVInputFormat ff_adf_demuxer = {
- .name = "adf",
- .long_name = NULL_IF_CONFIG_SMALL("Artworx Data Format"),
- .priv_data_size = sizeof(BinDemuxContext),
- .read_header = adf_read_header,
- .read_packet = read_packet,
- .extensions = "adf",
- .priv_class = CLASS("Artworx Data Format demuxer"),
-};
-#endif
-
-#if CONFIG_IDF_DEMUXER
-AVInputFormat ff_idf_demuxer = {
- .name = "idf",
- .long_name = NULL_IF_CONFIG_SMALL("iCE Draw File"),
- .priv_data_size = sizeof(BinDemuxContext),
- .read_probe = idf_probe,
- .read_header = idf_read_header,
- .read_packet = read_packet,
- .extensions = "idf",
- .priv_class = CLASS("iCE Draw File demuxer"),
-};
-#endif
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