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support for Delphine Software .cin files demuxing / audio and video decoding, by Gregory Montoir %cyx A users P sourceforge P net%

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Originally committed as revision 6659 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier
2006-10-11 16:57:00 +00:00
parent 2b5269b51c
commit 72450e50a5
8 changed files with 603 additions and 0 deletions
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2
libavcodec/Makefile
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@@ -65,6 +65,8 @@ OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o
OBJS-$(CONFIG_COOK_DECODER) += cook.o
OBJS-$(CONFIG_CSCD_DECODER) += cscd.o lzo.o
OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o
OBJS-$(CONFIG_DSICINVIDEO_DECODER) += dsicinav.o
OBJS-$(CONFIG_DSICINAUDIO_DECODER) += dsicinav.o
OBJS-$(CONFIG_DVBSUB_DECODER) += dvbsubdec.o
OBJS-$(CONFIG_DVBSUB_ENCODER) += dvbsub.o
OBJS-$(CONFIG_DVDSUB_DECODER) += dvdsub.o

6
libavcodec/allcodecs.c
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@@ -548,6 +548,12 @@ void avcodec_register_all(void)
#ifdef CONFIG_TARGA_DECODER
register_avcodec(&targa_decoder);
#endif //CONFIG_TARGA_DECODER
#ifdef CONFIG_DSICINVIDEO_DECODER
register_avcodec(&dsicinvideo_decoder);
#endif //CONFIG_DSICINVIDEO_DECODER
#ifdef CONFIG_DSICINAUDIO_DECODER
register_avcodec(&dsicinaudio_decoder);
#endif //CONFIG_DSICINAUDIO_DECODER
#if defined(CONFIG_AMR_NB) || defined(CONFIG_AMR_NB_FIXED)
#ifdef CONFIG_AMR_NB_DECODER

4
libavcodec/avcodec.h
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@@ -145,6 +145,7 @@ enum CodecID {
CODEC_ID_VP6,
CODEC_ID_VP6F,
CODEC_ID_TARGA,
CODEC_ID_DSICINVIDEO,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
@@ -228,6 +229,7 @@ enum CodecID {
CODEC_ID_SMACKAUDIO,
CODEC_ID_QCELP,
CODEC_ID_WAVPACK,
CODEC_ID_DSICINAUDIO,
/* subtitle codecs */
CODEC_ID_DVD_SUBTITLE= 0x17000,
@@ -2294,6 +2296,8 @@ extern AVCodec cavs_decoder;
extern AVCodec vmnc_decoder;
extern AVCodec wavpack_decoder;
extern AVCodec targa_decoder;
extern AVCodec dsicinvideo_decoder;
extern AVCodec dsicinaudio_decoder;
/* pcm codecs */
#define PCM_CODEC(id, name) \

362
libavcodec/dsicinav.c Normal file
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@@ -0,0 +1,362 @@
/*
* Delphine Software International CIN Audio/Video Decoders
* Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net)
*
* 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 dsicinav.c
* Delphine Software International CIN audio/video decoders
*/
#include "avcodec.h"
#include "common.h"
typedef enum CinVideoBitmapIndex {
CIN_CUR_BMP = 0, /* current */
CIN_PRE_BMP = 1, /* previous */
CIN_INT_BMP = 2 /* intermediate */
} CinVideoBitmapIndex;
typedef struct CinVideoContext {
AVCodecContext *avctx;
AVFrame frame;
unsigned int bitmap_size;
uint32_t palette[256];
uint8_t *bitmap_table[3];
} CinVideoContext;
typedef struct CinAudioContext {
AVCodecContext *avctx;
int initial_decode_frame;
int delta;
} CinAudioContext;
/* table defining a geometric sequence with multiplier = 32767 ^ (1 / 128) */
static const int16_t cinaudio_delta16_table[256] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, -30210, -27853, -25680, -23677, -21829,
-20126, -18556, -17108, -15774, -14543, -13408, -12362, -11398,
-10508, -9689, -8933, -8236, -7593, -7001, -6455, -5951,
-5487, -5059, -4664, -4300, -3964, -3655, -3370, -3107,
-2865, -2641, -2435, -2245, -2070, -1908, -1759, -1622,
-1495, -1379, -1271, -1172, -1080, -996, -918, -847,
-781, -720, -663, -612, -564, -520, -479, -442,
-407, -376, -346, -319, -294, -271, -250, -230,
-212, -196, -181, -166, -153, -141, -130, -120,
-111, -102, -94, -87, -80, -74, -68, -62,
-58, -53, -49, -45, -41, -38, -35, -32,
-30, -27, -25, -23, -21, -20, -18, -17,
-15, -14, -13, -12, -11, -10, -9, -8,
-7, -6, -5, -4, -3, -2, -1, 0,
0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15,
17, 18, 20, 21, 23, 25, 27, 30,
32, 35, 38, 41, 45, 49, 53, 58,
62, 68, 74, 80, 87, 94, 102, 111,
120, 130, 141, 153, 166, 181, 196, 212,
230, 250, 271, 294, 319, 346, 376, 407,
442, 479, 520, 564, 612, 663, 720, 781,
847, 918, 996, 1080, 1172, 1271, 1379, 1495,
1622, 1759, 1908, 2070, 2245, 2435, 2641, 2865,
3107, 3370, 3655, 3964, 4300, 4664, 5059, 5487,
5951, 6455, 7001, 7593, 8236, 8933, 9689, 10508,
11398, 12362, 13408, 14543, 15774, 17108, 18556, 20126,
21829, 23677, 25680, 27853, 30210, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0
};
static int cinvideo_decode_init(AVCodecContext *avctx)
{
CinVideoContext *cin = (CinVideoContext *)avctx->priv_data;
unsigned int i;
cin->avctx = avctx;
avctx->pix_fmt = PIX_FMT_PAL8;
avctx->has_b_frames = 0;
cin->frame.data[0] = NULL;
cin->bitmap_size = avctx->width * avctx->height;
for (i = 0; i < 3; ++i) {
cin->bitmap_table[i] = av_mallocz(cin->bitmap_size);
if (!cin->bitmap_table[i])
av_log(avctx, AV_LOG_ERROR, "Can't allocate bitmap buffers.\n");
}
return 0;
}
static void cin_apply_delta_data(const unsigned char *src, unsigned char *dst, int size)
{
while (size--)
*dst++ += *src++;
}
static int cin_decode_huffman(const unsigned char *src, int src_size, unsigned char *dst, int dst_size)
{
int b, huff_code = 0;
unsigned char huff_code_table[15];
unsigned char *dst_cur = dst;
unsigned char *dst_end = dst + dst_size;
const unsigned char *src_end = src + src_size;
memcpy(huff_code_table, src, 15); src += 15; src_size -= 15;
while (src < src_end) {
huff_code = *src++;
if ((huff_code >> 4) == 15) {
b = huff_code << 4;
huff_code = *src++;
*dst_cur++ = b | (huff_code >> 4);
} else
*dst_cur++ = huff_code_table[huff_code >> 4];
if (dst_cur >= dst_end)
break;
huff_code &= 15;
if (huff_code == 15) {
*dst_cur++ = *src++;
} else
*dst_cur++ = huff_code_table[huff_code];
if (dst_cur >= dst_end)
break;
}
return dst_cur - dst;
}
static void cin_decode_lzss(const unsigned char *src, int src_size, unsigned char *dst, int dst_size)
{
uint16_t cmd;
int i, sz, offset, code;
unsigned char *dst_end = dst + dst_size;
const unsigned char *src_end = src + src_size;
while (src < src_end && dst < dst_end) {
code = *src++;
for (i = 0; i < 8 && src < src_end && dst < dst_end; ++i) {
if (code & (1 << i)) {
*dst++ = *src++;
} else {
cmd = LE_16(src); src += 2;
offset = cmd >> 4;
sz = (cmd & 0xF) + 2;
/* don't use memcpy/memmove here as the decoding routine (ab)uses */
/* buffer overlappings to repeat bytes in the destination */
sz = FFMIN(sz, dst_end - dst);
while (sz--) {
*dst = *(dst - offset - 1);
++dst;
}
}
}
}
}
static void cin_decode_rle(const unsigned char *src, int src_size, unsigned char *dst, int dst_size)
{
int len, code;
unsigned char *dst_end = dst + dst_size;
const unsigned char *src_end = src + src_size;
while (src < src_end && dst < dst_end) {
code = *src++;
if (code & 0x80) {
len = code - 0x7F;
memset(dst, *src++, FFMIN(len, dst_end - dst));
} else {
len = code + 1;
memcpy(dst, src, FFMIN(len, dst_end - dst));
src += len;
}
dst += len;
}
}
static int cinvideo_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
CinVideoContext *cin = (CinVideoContext *)avctx->priv_data;
int i, y, palette_type, palette_colors_count, bitmap_frame_type, bitmap_frame_size;
cin->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
if (avctx->reget_buffer(avctx, &cin->frame)) {
av_log(cin->avctx, AV_LOG_ERROR, "delphinecinvideo: reget_buffer() failed to allocate a frame\n");
return -1;
}
palette_type = buf[0];
palette_colors_count = buf[1] | (buf[2] << 8);
bitmap_frame_type = buf[3];
buf += 4;
bitmap_frame_size = buf_size - 4;
/* handle palette */
if (palette_type == 0) {
for (i = 0; i < palette_colors_count; ++i) {
cin->palette[i] = (buf[2] << 16) | (buf[1] << 8) | buf[0];
buf += 3;
bitmap_frame_size -= 3;
}
} else {
for (i = 0; i < palette_colors_count; ++i) {
cin->palette[buf[0]] = (buf[3] << 16) | (buf[2] << 8) | buf[1];
buf += 4;
bitmap_frame_size -= 4;
}
}
memcpy(cin->frame.data[1], cin->palette, sizeof(cin->palette));
cin->frame.palette_has_changed = 1;
/* note: the decoding routines below assumes that surface.width = surface.pitch */
switch (bitmap_frame_type) {
case 9:
cin_decode_rle(buf, bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
case 34:
cin_decode_rle(buf, bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
cin_apply_delta_data(cin->bitmap_table[CIN_PRE_BMP],
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
case 35:
cin_decode_huffman(buf, bitmap_frame_size,
cin->bitmap_table[CIN_INT_BMP], cin->bitmap_size);
cin_decode_rle(cin->bitmap_table[CIN_INT_BMP], bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
case 36:
bitmap_frame_size = cin_decode_huffman(buf, bitmap_frame_size,
cin->bitmap_table[CIN_INT_BMP], cin->bitmap_size);
cin_decode_rle(cin->bitmap_table[CIN_INT_BMP], bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
cin_apply_delta_data(cin->bitmap_table[CIN_PRE_BMP],
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
case 37:
cin_decode_huffman(buf, bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
case 38:
cin_decode_lzss(buf, bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
case 39:
cin_decode_lzss(buf, bitmap_frame_size,
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
cin_apply_delta_data(cin->bitmap_table[CIN_PRE_BMP],
cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_size);
break;
}
for (y = 0; y < cin->avctx->height; ++y)
memcpy(cin->frame.data[0] + (cin->avctx->height - 1 - y) * cin->frame.linesize[0],
cin->bitmap_table[CIN_CUR_BMP] + y * cin->avctx->width,
cin->avctx->width);
SWAP(uint8_t *, cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_table[CIN_PRE_BMP]);
*data_size = sizeof(AVFrame);
*(AVFrame *)data = cin->frame;
return buf_size;
}
static int cinvideo_decode_end(AVCodecContext *avctx)
{
CinVideoContext *cin = (CinVideoContext *)avctx->priv_data;
int i;
if (cin->frame.data[0])
avctx->release_buffer(avctx, &cin->frame);
for (i = 0; i < 3; ++i)
av_free(cin->bitmap_table[i]);
return 0;
}
static int cinaudio_decode_init(AVCodecContext *avctx)
{
CinAudioContext *cin = (CinAudioContext *)avctx->priv_data;
cin->avctx = avctx;
cin->initial_decode_frame = 1;
cin->delta = 0;
return 0;
}
static int cinaudio_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
CinAudioContext *cin = (CinAudioContext *)avctx->priv_data;
uint8_t *src = buf;
int16_t *samples = (int16_t *)data;
if (cin->initial_decode_frame) {
cin->initial_decode_frame = 0;
cin->delta = (int16_t)LE_16(src); src += 2;
*samples++ = cin->delta;
buf_size -= 2;
}
while (buf_size > 0) {
cin->delta += cinaudio_delta16_table[*src++];
cin->delta = clip(cin->delta, -32768, 32767);
*samples++ = cin->delta;
--buf_size;
}
*data_size = (uint8_t *)samples - (uint8_t *)data;
return src - buf;
}
AVCodec dsicinvideo_decoder = {
"dsicinvideo",
CODEC_TYPE_VIDEO,
CODEC_ID_DSICINVIDEO,
sizeof(CinVideoContext),
cinvideo_decode_init,
NULL,
cinvideo_decode_end,
cinvideo_decode_frame,
CODEC_CAP_DR1,
};
AVCodec dsicinaudio_decoder = {
"dsicinaudio",
CODEC_TYPE_AUDIO,
CODEC_ID_DSICINAUDIO,
sizeof(CinAudioContext),
cinaudio_decode_init,
NULL,
NULL,
cinaudio_decode_frame,
};

1
libavformat/Makefile
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@@ -29,6 +29,7 @@ OBJS-$(CONFIG_AVS_DEMUXER) += avs.o
OBJS-$(CONFIG_CRC_MUXER) += crc.o
OBJS-$(CONFIG_FRAMECRC_MUXER) += crc.o
OBJS-$(CONFIG_DAUD_DEMUXER) += daud.o
OBJS-$(CONFIG_DSICIN_DEMUXER) += dsicin.o
OBJS-$(CONFIG_DV_DEMUXER) += dv.o
OBJS-$(CONFIG_DV_MUXER) += dvenc.o
OBJS-$(CONFIG_EA_DEMUXER) += electronicarts.o

3
libavformat/allformats.c
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@@ -105,6 +105,9 @@ void av_register_all(void)
av_register_input_format(&dc1394_demuxer);
#endif
#endif /* CONFIG_DC1394 */
#ifdef CONFIG_DSICIN_DEMUXER
av_register_input_format(&dsicin_demuxer);
#endif
#ifdef CONFIG_DV1394
#ifdef CONFIG_DV1394_DEMUXER
av_register_input_format(&dv1394_demuxer);

1
libavformat/allformats.h
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@@ -43,6 +43,7 @@ extern AVOutputFormat crc_muxer;
extern AVOutputFormat framecrc_muxer;
extern AVInputFormat daud_demuxer;
extern AVInputFormat dc1394_demuxer;
extern AVInputFormat dsicin_demuxer;
extern AVInputFormat dv1394_demuxer;
extern AVInputFormat dv_demuxer;
extern AVOutputFormat dv_muxer;

224
libavformat/dsicin.c Normal file
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@@ -0,0 +1,224 @@
/*
* Delphine Software International CIN File Demuxer
* Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net)
*
* 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 dsicin.c
* Delphine Software International CIN file demuxer
*/
#include "avformat.h"
typedef struct CinFileHeader {
int video_frame_size;
int video_frame_width;
int video_frame_height;
int audio_frequency;
int audio_bits;
int audio_stereo;
int audio_frame_size;
} CinFileHeader;
typedef struct CinFrameHeader {
int audio_frame_type;
int video_frame_type;
int pal_colors_count;
int audio_frame_size;
int video_frame_size;
} CinFrameHeader;
typedef struct CinDemuxContext {
int audio_stream_index;
int video_stream_index;
CinFileHeader file_header;
int64_t audio_stream_pts;
int64_t video_stream_pts;
CinFrameHeader frame_header;
int audio_buffer_size;
} CinDemuxContext;
static int cin_probe(AVProbeData *p)
{
if (p->buf_size < 18)
return 0;
/* header starts with this special marker */
if (LE_32(&p->buf[0]) != 0x55AA0000)
return 0;
/* for accuracy, check some header field values */
if (LE_32(&p->buf[12]) != 22050 || p->buf[16] != 16 || p->buf[17] != 0)
return 0;
return AVPROBE_SCORE_MAX;
}
static int cin_read_file_header(CinDemuxContext *cin, ByteIOContext *pb) {
CinFileHeader *hdr = &cin->file_header;
if (get_le32(pb) != 0x55AA0000)
return AVERROR_INVALIDDATA;
hdr->video_frame_size = get_le32(pb);
hdr->video_frame_width = get_le16(pb);
hdr->video_frame_height = get_le16(pb);
hdr->audio_frequency = get_le32(pb);
hdr->audio_bits = get_byte(pb);
hdr->audio_stereo = get_byte(pb);
hdr->audio_frame_size = get_le16(pb);
if (hdr->audio_frequency != 22050 || hdr->audio_bits != 16 || hdr->audio_stereo != 0)
return AVERROR_INVALIDDATA;
return 0;
}
static int cin_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
int rc;
CinDemuxContext *cin = (CinDemuxContext *)s->priv_data;
CinFileHeader *hdr = &cin->file_header;
ByteIOContext *pb = &s->pb;
AVStream *st;
rc = cin_read_file_header(cin, pb);
if (rc)
return rc;
cin->video_stream_pts = 0;
cin->audio_stream_pts = 0;
cin->audio_buffer_size = 0;
/* initialize the video decoder stream */
st = av_new_stream(s, 0);
if (!st)
return AVERROR_NOMEM;
av_set_pts_info(st, 32, 1, 12);
cin->video_stream_index = st->index;
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_DSICINVIDEO;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = hdr->video_frame_width;
st->codec->height = hdr->video_frame_height;
/* initialize the audio decoder stream */
st = av_new_stream(s, 0);
if (!st)
return AVERROR_NOMEM;
av_set_pts_info(st, 32, 1, 22050);
cin->audio_stream_index = st->index;
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_DSICINAUDIO;
st->codec->codec_tag = 0; /* no tag */
st->codec->channels = 1;
st->codec->sample_rate = 22050;
st->codec->bits_per_sample = 16;
st->codec->bit_rate = st->codec->sample_rate * st->codec->bits_per_sample * st->codec->channels;
st->codec->block_align = st->codec->channels * st->codec->bits_per_sample;
return 0;
}
static int cin_read_frame_header(CinDemuxContext *cin, ByteIOContext *pb) {
CinFrameHeader *hdr = &cin->frame_header;
hdr->video_frame_type = get_byte(pb);
hdr->audio_frame_type = get_byte(pb);
hdr->pal_colors_count = get_le16(pb);
hdr->video_frame_size = get_le32(pb);
hdr->audio_frame_size = get_le32(pb);
if (url_feof(pb) || url_ferror(pb))
return AVERROR_IO;
if (get_le32(pb) != 0xAA55AA55)
return AVERROR_INVALIDDATA;
return 0;
}
static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
{
CinDemuxContext *cin = (CinDemuxContext *)s->priv_data;
ByteIOContext *pb = &s->pb;
CinFrameHeader *hdr = &cin->frame_header;
int rc, palette_type, pkt_size;
if (cin->audio_buffer_size == 0) {
rc = cin_read_frame_header(cin, pb);
if (rc)
return rc;
if ((int16_t)hdr->pal_colors_count < 0) {
hdr->pal_colors_count = -(int16_t)hdr->pal_colors_count;
palette_type = 1;
} else {
palette_type = 0;
}
/* palette and video packet */
pkt_size = (palette_type + 3) * hdr->pal_colors_count + hdr->video_frame_size;
if (av_new_packet(pkt, 4 + pkt_size))
return AVERROR_NOMEM;
pkt->stream_index = cin->video_stream_index;
pkt->pts = cin->video_stream_pts++;
pkt->data[0] = palette_type;
pkt->data[1] = hdr->pal_colors_count & 0xFF;
pkt->data[2] = hdr->pal_colors_count >> 8;
pkt->data[3] = hdr->video_frame_type;
if (get_buffer(pb, &pkt->data[4], pkt_size) != pkt_size)
return AVERROR_IO;
/* sound buffer will be processed on next read_packet() call */
cin->audio_buffer_size = hdr->audio_frame_size;
return 0;
}
/* audio packet */
if (av_new_packet(pkt, cin->audio_buffer_size))
return AVERROR_NOMEM;
pkt->stream_index = cin->audio_stream_index;
pkt->pts = cin->audio_stream_pts;
cin->audio_stream_pts += cin->audio_buffer_size * 2 / cin->file_header.audio_frame_size;
if (get_buffer(pb, pkt->data, cin->audio_buffer_size) != cin->audio_buffer_size)
return AVERROR_IO;
cin->audio_buffer_size = 0;
return 0;
}
AVInputFormat dsicin_demuxer = {
"dsicin",
"Delphine Software International CIN format",
sizeof(CinDemuxContext),
cin_probe,
cin_read_header,
cin_read_packet,
};