Remove obsolete imgformat1 leftovers.
Originally committed as revision 7894 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
parent
f248d017a7
commit
f2390590e0
@ -1,400 +0,0 @@
|
||||
/*
|
||||
* Image format
|
||||
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
|
||||
*
|
||||
* 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"
|
||||
|
||||
typedef struct {
|
||||
int width;
|
||||
int height;
|
||||
int img_first;
|
||||
int img_last;
|
||||
int img_number;
|
||||
int img_count;
|
||||
int img_size;
|
||||
AVImageFormat *img_fmt;
|
||||
int pix_fmt;
|
||||
int is_pipe;
|
||||
char path[1024];
|
||||
/* temporary usage */
|
||||
void *ptr;
|
||||
} VideoData;
|
||||
|
||||
|
||||
/* return -1 if no image found */
|
||||
static int find_image_range(int *pfirst_index, int *plast_index,
|
||||
const char *path)
|
||||
{
|
||||
char buf[1024];
|
||||
int range, last_index, range1, first_index;
|
||||
|
||||
/* find the first image */
|
||||
for(first_index = 0; first_index < 5; first_index++) {
|
||||
if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0)
|
||||
goto fail;
|
||||
if (url_exist(buf))
|
||||
break;
|
||||
}
|
||||
if (first_index == 5)
|
||||
goto fail;
|
||||
|
||||
/* find the last image */
|
||||
last_index = first_index;
|
||||
for(;;) {
|
||||
range = 0;
|
||||
for(;;) {
|
||||
if (!range)
|
||||
range1 = 1;
|
||||
else
|
||||
range1 = 2 * range;
|
||||
if (av_get_frame_filename(buf, sizeof(buf), path,
|
||||
last_index + range1) < 0)
|
||||
goto fail;
|
||||
if (!url_exist(buf))
|
||||
break;
|
||||
range = range1;
|
||||
/* just in case... */
|
||||
if (range >= (1 << 30))
|
||||
goto fail;
|
||||
}
|
||||
/* we are sure than image last_index + range exists */
|
||||
if (!range)
|
||||
break;
|
||||
last_index += range;
|
||||
}
|
||||
*pfirst_index = first_index;
|
||||
*plast_index = last_index;
|
||||
return 0;
|
||||
fail:
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
static int image_probe(AVProbeData *p)
|
||||
{
|
||||
if (av_filename_number_test(p->filename) && guess_image_format(p->filename))
|
||||
return AVPROBE_SCORE_MAX-1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int read_header_alloc_cb(void *opaque, AVImageInfo *info)
|
||||
{
|
||||
VideoData *s = opaque;
|
||||
|
||||
s->width = info->width;
|
||||
s->height = info->height;
|
||||
s->pix_fmt = info->pix_fmt;
|
||||
/* stop image reading but no error */
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
|
||||
{
|
||||
VideoData *s = s1->priv_data;
|
||||
int ret, first_index, last_index;
|
||||
char buf[1024];
|
||||
ByteIOContext pb1, *f = &pb1;
|
||||
AVStream *st;
|
||||
|
||||
st = av_new_stream(s1, 0);
|
||||
if (!st) {
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
if (ap->image_format)
|
||||
s->img_fmt = ap->image_format;
|
||||
|
||||
pstrcpy(s->path, sizeof(s->path), s1->filename);
|
||||
s->img_number = 0;
|
||||
s->img_count = 0;
|
||||
|
||||
/* find format */
|
||||
if (s1->iformat->flags & AVFMT_NOFILE)
|
||||
s->is_pipe = 0;
|
||||
else
|
||||
s->is_pipe = 1;
|
||||
|
||||
if (!ap->time_base.num) {
|
||||
st->codec->time_base= (AVRational){1,25};
|
||||
} else {
|
||||
st->codec->time_base= ap->time_base;
|
||||
}
|
||||
|
||||
if (!s->is_pipe) {
|
||||
if (find_image_range(&first_index, &last_index, s->path) < 0)
|
||||
goto fail;
|
||||
s->img_first = first_index;
|
||||
s->img_last = last_index;
|
||||
s->img_number = first_index;
|
||||
/* compute duration */
|
||||
st->start_time = 0;
|
||||
st->duration = last_index - first_index + 1;
|
||||
if (av_get_frame_filename(buf, sizeof(buf), s->path, s->img_number) < 0)
|
||||
goto fail;
|
||||
if (url_fopen(f, buf, URL_RDONLY) < 0)
|
||||
goto fail;
|
||||
} else {
|
||||
f = &s1->pb;
|
||||
}
|
||||
|
||||
ret = av_read_image(f, s1->filename, s->img_fmt, read_header_alloc_cb, s);
|
||||
if (ret < 0)
|
||||
goto fail1;
|
||||
|
||||
if (!s->is_pipe) {
|
||||
url_fclose(f);
|
||||
} else {
|
||||
url_fseek(f, 0, SEEK_SET);
|
||||
}
|
||||
|
||||
st->codec->codec_type = CODEC_TYPE_VIDEO;
|
||||
st->codec->codec_id = CODEC_ID_RAWVIDEO;
|
||||
st->codec->width = s->width;
|
||||
st->codec->height = s->height;
|
||||
st->codec->pix_fmt = s->pix_fmt;
|
||||
s->img_size = avpicture_get_size(s->pix_fmt, (s->width+15)&(~15), (s->height+15)&(~15));
|
||||
|
||||
return 0;
|
||||
fail1:
|
||||
if (!s->is_pipe)
|
||||
url_fclose(f);
|
||||
fail:
|
||||
return AVERROR_IO;
|
||||
}
|
||||
|
||||
static int read_packet_alloc_cb(void *opaque, AVImageInfo *info)
|
||||
{
|
||||
VideoData *s = opaque;
|
||||
|
||||
if (info->width != s->width ||
|
||||
info->height != s->height)
|
||||
return -1;
|
||||
avpicture_fill(&info->pict, s->ptr, info->pix_fmt, (info->width+15)&(~15), (info->height+15)&(~15));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
|
||||
{
|
||||
VideoData *s = s1->priv_data;
|
||||
char filename[1024];
|
||||
int ret;
|
||||
ByteIOContext f1, *f;
|
||||
|
||||
if (!s->is_pipe) {
|
||||
/* loop over input */
|
||||
if (s1->loop_input && s->img_number > s->img_last) {
|
||||
s->img_number = s->img_first;
|
||||
}
|
||||
if (av_get_frame_filename(filename, sizeof(filename),
|
||||
s->path, s->img_number) < 0)
|
||||
return AVERROR_IO;
|
||||
f = &f1;
|
||||
if (url_fopen(f, filename, URL_RDONLY) < 0)
|
||||
return AVERROR_IO;
|
||||
} else {
|
||||
f = &s1->pb;
|
||||
if (url_feof(f))
|
||||
return AVERROR_IO;
|
||||
}
|
||||
|
||||
av_new_packet(pkt, s->img_size);
|
||||
pkt->stream_index = 0;
|
||||
|
||||
s->ptr = pkt->data;
|
||||
ret = av_read_image(f, filename, s->img_fmt, read_packet_alloc_cb, s);
|
||||
if (!s->is_pipe) {
|
||||
url_fclose(f);
|
||||
}
|
||||
|
||||
if (ret < 0) {
|
||||
av_free_packet(pkt);
|
||||
return AVERROR_IO; /* signal EOF */
|
||||
} else {
|
||||
/* XXX: computing this pts is not necessary as it is done in
|
||||
the generic code too */
|
||||
pkt->pts = av_rescale((int64_t)s->img_count * s1->streams[0]->codec->time_base.num, s1->streams[0]->time_base.den, s1->streams[0]->codec->time_base.den) / s1->streams[0]->time_base.num;
|
||||
s->img_count++;
|
||||
s->img_number++;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static int img_read_close(AVFormatContext *s1)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/******************************************************/
|
||||
/* image output */
|
||||
|
||||
static int img_set_parameters(AVFormatContext *s, AVFormatParameters *ap)
|
||||
{
|
||||
VideoData *img = s->priv_data;
|
||||
AVStream *st;
|
||||
AVImageFormat *img_fmt;
|
||||
int i;
|
||||
|
||||
/* find output image format */
|
||||
if (ap->image_format) {
|
||||
img_fmt = ap->image_format;
|
||||
} else {
|
||||
img_fmt = guess_image_format(s->filename);
|
||||
}
|
||||
if (!img_fmt)
|
||||
return -1;
|
||||
|
||||
if (s->nb_streams != 1)
|
||||
return -1;
|
||||
|
||||
st = s->streams[0];
|
||||
/* we select the first matching format */
|
||||
for(i=0;i<PIX_FMT_NB;i++) {
|
||||
if (img_fmt->supported_pixel_formats & (1 << i))
|
||||
break;
|
||||
}
|
||||
if (i >= PIX_FMT_NB)
|
||||
return -1;
|
||||
img->img_fmt = img_fmt;
|
||||
img->pix_fmt = i;
|
||||
st->codec->pix_fmt = img->pix_fmt;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int img_write_header(AVFormatContext *s)
|
||||
{
|
||||
VideoData *img = s->priv_data;
|
||||
|
||||
img->img_number = 1;
|
||||
pstrcpy(img->path, sizeof(img->path), s->filename);
|
||||
|
||||
/* find format */
|
||||
if (s->oformat->flags & AVFMT_NOFILE)
|
||||
img->is_pipe = 0;
|
||||
else
|
||||
img->is_pipe = 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int img_write_packet(AVFormatContext *s, AVPacket *pkt)
|
||||
{
|
||||
VideoData *img = s->priv_data;
|
||||
AVStream *st = s->streams[pkt->stream_index];
|
||||
ByteIOContext pb1, *pb;
|
||||
AVPicture *picture;
|
||||
int width, height, ret;
|
||||
char filename[1024];
|
||||
AVImageInfo info;
|
||||
|
||||
width = st->codec->width;
|
||||
height = st->codec->height;
|
||||
|
||||
picture = (AVPicture *)pkt->data;
|
||||
|
||||
if (!img->is_pipe) {
|
||||
if (av_get_frame_filename(filename, sizeof(filename),
|
||||
img->path, img->img_number) < 0)
|
||||
return AVERROR_IO;
|
||||
pb = &pb1;
|
||||
if (url_fopen(pb, filename, URL_WRONLY) < 0)
|
||||
return AVERROR_IO;
|
||||
} else {
|
||||
pb = &s->pb;
|
||||
}
|
||||
info.width = width;
|
||||
info.height = height;
|
||||
info.pix_fmt = st->codec->pix_fmt;
|
||||
info.interleaved = 0; /* FIXME: there should be a way to set it right */
|
||||
info.pict = *picture;
|
||||
ret = av_write_image(pb, img->img_fmt, &info);
|
||||
if (!img->is_pipe) {
|
||||
url_fclose(pb);
|
||||
}
|
||||
|
||||
img->img_number++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int img_write_trailer(AVFormatContext *s)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* input */
|
||||
#ifdef CONFIG_IMAGE_DEMUXER
|
||||
AVInputFormat image_demuxer = {
|
||||
"image",
|
||||
"image sequence",
|
||||
sizeof(VideoData),
|
||||
image_probe,
|
||||
img_read_header,
|
||||
img_read_packet,
|
||||
img_read_close,
|
||||
NULL,
|
||||
NULL,
|
||||
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
||||
};
|
||||
#endif
|
||||
#ifdef CONFIG_IMAGEPIPE_DEMUXER
|
||||
AVInputFormat imagepipe_demuxer = {
|
||||
"imagepipe",
|
||||
"piped image sequence",
|
||||
sizeof(VideoData),
|
||||
NULL, /* no probe */
|
||||
img_read_header,
|
||||
img_read_packet,
|
||||
img_read_close,
|
||||
NULL,
|
||||
};
|
||||
#endif
|
||||
|
||||
/* output */
|
||||
#ifdef CONFIG_IMAGE_MUXER
|
||||
AVOutputFormat image_muxer = {
|
||||
"image",
|
||||
"image sequence",
|
||||
"",
|
||||
"",
|
||||
sizeof(VideoData),
|
||||
CODEC_ID_NONE,
|
||||
CODEC_ID_RAWVIDEO,
|
||||
img_write_header,
|
||||
img_write_packet,
|
||||
img_write_trailer,
|
||||
AVFMT_NOFILE | AVFMT_NEEDNUMBER | AVFMT_RAWPICTURE,
|
||||
img_set_parameters,
|
||||
};
|
||||
#endif
|
||||
#ifdef CONFIG_IMAGEPIPE_MUXER
|
||||
AVOutputFormat imagepipe_muxer = {
|
||||
"imagepipe",
|
||||
"piped image sequence",
|
||||
"",
|
||||
"",
|
||||
sizeof(VideoData),
|
||||
CODEC_ID_NONE,
|
||||
CODEC_ID_RAWVIDEO,
|
||||
img_write_header,
|
||||
img_write_packet,
|
||||
img_write_trailer,
|
||||
AVFMT_RAWPICTURE,
|
||||
img_set_parameters,
|
||||
};
|
||||
#endif
|
@ -1,240 +0,0 @@
|
||||
/*
|
||||
* JPEG image format
|
||||
* Copyright (c) 2003 Fabrice Bellard.
|
||||
*
|
||||
* 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"
|
||||
|
||||
static int jpeg_probe(AVProbeData *pd)
|
||||
{
|
||||
if (pd->buf_size >= 64 &&
|
||||
pd->buf[0] == 0xff && pd->buf[1] == 0xd8 && pd->buf[2] == 0xff)
|
||||
return AVPROBE_SCORE_MAX;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
typedef struct JpegOpaque {
|
||||
int (*alloc_cb)(void *opaque, AVImageInfo *info);
|
||||
void *opaque;
|
||||
int ret_code;
|
||||
} JpegOpaque;
|
||||
|
||||
/* called by the codec to allocate the image */
|
||||
static int jpeg_get_buffer(AVCodecContext *c, AVFrame *picture)
|
||||
{
|
||||
JpegOpaque *jctx = c->opaque;
|
||||
AVImageInfo info1, *info = &info1;
|
||||
int ret, i;
|
||||
|
||||
info->width = c->width;
|
||||
info->height = c->height;
|
||||
switch(c->pix_fmt) {
|
||||
case PIX_FMT_YUV420P:
|
||||
info->pix_fmt = PIX_FMT_YUVJ420P;
|
||||
break;
|
||||
case PIX_FMT_YUV422P:
|
||||
info->pix_fmt = PIX_FMT_YUVJ422P;
|
||||
break;
|
||||
case PIX_FMT_YUV444P:
|
||||
info->pix_fmt = PIX_FMT_YUVJ444P;
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
ret = jctx->alloc_cb(jctx->opaque, info);
|
||||
if (ret) {
|
||||
jctx->ret_code = ret;
|
||||
return -1;
|
||||
} else {
|
||||
for(i=0;i<3;i++) {
|
||||
picture->data[i] = info->pict.data[i];
|
||||
picture->linesize[i] = info->pict.linesize[i];
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static void jpeg_img_copy(uint8_t *dst, int dst_wrap,
|
||||
uint8_t *src, int src_wrap,
|
||||
int width, int height)
|
||||
{
|
||||
for(;height > 0; height--) {
|
||||
memcpy(dst, src, width);
|
||||
dst += dst_wrap;
|
||||
src += src_wrap;
|
||||
}
|
||||
}
|
||||
|
||||
/* XXX: libavcodec is broken for truncated jpegs! */
|
||||
#define IO_BUF_SIZE (1024*1024)
|
||||
|
||||
static int jpeg_read(ByteIOContext *f,
|
||||
int (*alloc_cb)(void *opaque, AVImageInfo *info), void *opaque)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
AVFrame *picture, picture1;
|
||||
int len, size, got_picture, i;
|
||||
uint8_t *inbuf_ptr, inbuf[IO_BUF_SIZE];
|
||||
JpegOpaque jctx;
|
||||
|
||||
jctx.alloc_cb = alloc_cb;
|
||||
jctx.opaque = opaque;
|
||||
jctx.ret_code = -1; /* default return code is error */
|
||||
|
||||
c = avcodec_alloc_context();
|
||||
if (!c)
|
||||
return -1;
|
||||
picture= avcodec_alloc_frame();
|
||||
if (!picture) {
|
||||
av_free(c);
|
||||
return -1;
|
||||
}
|
||||
c->opaque = &jctx;
|
||||
c->get_buffer = jpeg_get_buffer;
|
||||
c->flags |= CODEC_FLAG_TRUNCATED; /* we dont send complete frames */
|
||||
if (avcodec_open(c, &mjpeg_decoder) < 0)
|
||||
goto fail1;
|
||||
for(;;) {
|
||||
size = get_buffer(f, inbuf, sizeof(inbuf));
|
||||
if (size == 0)
|
||||
break;
|
||||
inbuf_ptr = inbuf;
|
||||
while (size > 0) {
|
||||
len = avcodec_decode_video(c, &picture1, &got_picture,
|
||||
inbuf_ptr, size);
|
||||
if (len < 0)
|
||||
goto fail;
|
||||
if (got_picture)
|
||||
goto the_end;
|
||||
size -= len;
|
||||
inbuf_ptr += len;
|
||||
}
|
||||
}
|
||||
the_end:
|
||||
/* XXX: currently, the mjpeg decoder does not use AVFrame, so we
|
||||
must do it by hand */
|
||||
if (jpeg_get_buffer(c, picture) < 0)
|
||||
goto fail;
|
||||
for(i=0;i<3;i++) {
|
||||
int w, h;
|
||||
w = c->width;
|
||||
h = c->height;
|
||||
if (i >= 1) {
|
||||
switch(c->pix_fmt) {
|
||||
default:
|
||||
case PIX_FMT_YUV420P:
|
||||
w = (w + 1) >> 1;
|
||||
h = (h + 1) >> 1;
|
||||
break;
|
||||
case PIX_FMT_YUV422P:
|
||||
w = (w + 1) >> 1;
|
||||
break;
|
||||
case PIX_FMT_YUV444P:
|
||||
break;
|
||||
}
|
||||
}
|
||||
jpeg_img_copy(picture->data[i], picture->linesize[i],
|
||||
picture1.data[i], picture1.linesize[i],
|
||||
w, h);
|
||||
}
|
||||
jctx.ret_code = 0;
|
||||
fail:
|
||||
avcodec_close(c);
|
||||
fail1:
|
||||
av_free(picture);
|
||||
av_free(c);
|
||||
return jctx.ret_code;
|
||||
}
|
||||
|
||||
#if defined(CONFIG_MUXERS) && defined(CONFIG_MJPEG_ENCODER)
|
||||
static int jpeg_write(ByteIOContext *pb, AVImageInfo *info)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
uint8_t *outbuf = NULL;
|
||||
int outbuf_size, ret, size, i;
|
||||
AVFrame *picture;
|
||||
|
||||
ret = -1;
|
||||
c = avcodec_alloc_context();
|
||||
if (!c)
|
||||
return -1;
|
||||
picture = avcodec_alloc_frame();
|
||||
if (!picture)
|
||||
goto fail2;
|
||||
c->width = info->width;
|
||||
c->height = info->height;
|
||||
/* XXX: currently move that to the codec ? */
|
||||
switch(info->pix_fmt) {
|
||||
case PIX_FMT_YUVJ420P:
|
||||
c->pix_fmt = PIX_FMT_YUV420P;
|
||||
break;
|
||||
case PIX_FMT_YUVJ422P:
|
||||
c->pix_fmt = PIX_FMT_YUV422P;
|
||||
break;
|
||||
case PIX_FMT_YUVJ444P:
|
||||
c->pix_fmt = PIX_FMT_YUV444P;
|
||||
break;
|
||||
default:
|
||||
goto fail1;
|
||||
}
|
||||
for(i=0;i<3;i++) {
|
||||
picture->data[i] = info->pict.data[i];
|
||||
picture->linesize[i] = info->pict.linesize[i];
|
||||
}
|
||||
/* set the quality */
|
||||
picture->quality = 3; /* XXX: a parameter should be used */
|
||||
c->flags |= CODEC_FLAG_QSCALE;
|
||||
|
||||
if (avcodec_open(c, &mjpeg_encoder) < 0)
|
||||
goto fail1;
|
||||
|
||||
/* XXX: needs to sort out that size problem */
|
||||
outbuf_size = 1000000;
|
||||
outbuf = av_malloc(outbuf_size);
|
||||
|
||||
size = avcodec_encode_video(c, outbuf, outbuf_size, picture);
|
||||
if (size < 0)
|
||||
goto fail;
|
||||
put_buffer(pb, outbuf, size);
|
||||
put_flush_packet(pb);
|
||||
ret = 0;
|
||||
|
||||
fail:
|
||||
avcodec_close(c);
|
||||
av_free(outbuf);
|
||||
fail1:
|
||||
av_free(picture);
|
||||
fail2:
|
||||
av_free(c);
|
||||
return ret;
|
||||
}
|
||||
#endif //CONFIG_MUXERS
|
||||
|
||||
AVImageFormat jpeg_image_format = {
|
||||
"jpeg",
|
||||
"jpg,jpeg",
|
||||
jpeg_probe,
|
||||
jpeg_read,
|
||||
(1 << PIX_FMT_YUVJ420P) | (1 << PIX_FMT_YUVJ422P) | (1 << PIX_FMT_YUVJ444P),
|
||||
#if defined(CONFIG_MUXERS) && defined(CONFIG_MJPEG_ENCODER)
|
||||
jpeg_write,
|
||||
#else
|
||||
NULL,
|
||||
#endif //CONFIG_MUXERS
|
||||
};
|
@ -1,161 +0,0 @@
|
||||
/*
|
||||
* .Y.U.V image format
|
||||
* Copyright (c) 2003 Fabrice Bellard.
|
||||
*
|
||||
* 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"
|
||||
|
||||
static int sizes[][2] = {
|
||||
{ 640, 480 },
|
||||
{ 720, 480 },
|
||||
{ 720, 576 },
|
||||
{ 352, 288 },
|
||||
{ 352, 240 },
|
||||
{ 160, 128 },
|
||||
{ 512, 384 },
|
||||
{ 640, 352 },
|
||||
{ 640, 240 },
|
||||
};
|
||||
|
||||
static int infer_size(int *width_ptr, int *height_ptr, int size)
|
||||
{
|
||||
int i;
|
||||
|
||||
for(i=0;i<sizeof(sizes)/sizeof(sizes[0]);i++) {
|
||||
if ((sizes[i][0] * sizes[i][1]) == size) {
|
||||
*width_ptr = sizes[i][0];
|
||||
*height_ptr = sizes[i][1];
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int yuv_read(ByteIOContext *f,
|
||||
int (*alloc_cb)(void *opaque, AVImageInfo *info), void *opaque)
|
||||
{
|
||||
ByteIOContext pb1, *pb = &pb1;
|
||||
int img_size, ret;
|
||||
char fname[1024], *p;
|
||||
int size;
|
||||
URLContext *h;
|
||||
AVImageInfo info1, *info = &info1;
|
||||
|
||||
img_size = url_fsize(f);
|
||||
|
||||
/* XXX: hack hack */
|
||||
h = url_fileno(f);
|
||||
url_get_filename(h, fname, sizeof(fname));
|
||||
|
||||
if (infer_size(&info->width, &info->height, img_size) < 0) {
|
||||
return AVERROR_IO;
|
||||
}
|
||||
info->pix_fmt = PIX_FMT_YUV420P;
|
||||
|
||||
ret = alloc_cb(opaque, info);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
size = info->width * info->height;
|
||||
|
||||
p = strrchr(fname, '.');
|
||||
if (!p || p[1] != 'Y')
|
||||
return AVERROR_IO;
|
||||
|
||||
get_buffer(f, info->pict.data[0], size);
|
||||
|
||||
p[1] = 'U';
|
||||
if (url_fopen(pb, fname, URL_RDONLY) < 0)
|
||||
return AVERROR_IO;
|
||||
|
||||
get_buffer(pb, info->pict.data[1], size / 4);
|
||||
url_fclose(pb);
|
||||
|
||||
p[1] = 'V';
|
||||
if (url_fopen(pb, fname, URL_RDONLY) < 0)
|
||||
return AVERROR_IO;
|
||||
|
||||
get_buffer(pb, info->pict.data[2], size / 4);
|
||||
url_fclose(pb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int yuv_write(ByteIOContext *pb2, AVImageInfo *info)
|
||||
{
|
||||
ByteIOContext pb1, *pb;
|
||||
char fname[1024], *p;
|
||||
int i, j, width, height;
|
||||
uint8_t *ptr;
|
||||
URLContext *h;
|
||||
static const char *ext = "YUV";
|
||||
|
||||
/* XXX: hack hack */
|
||||
h = url_fileno(pb2);
|
||||
url_get_filename(h, fname, sizeof(fname));
|
||||
|
||||
p = strrchr(fname, '.');
|
||||
if (!p || p[1] != 'Y')
|
||||
return AVERROR_IO;
|
||||
|
||||
width = info->width;
|
||||
height = info->height;
|
||||
|
||||
for(i=0;i<3;i++) {
|
||||
if (i == 1) {
|
||||
width >>= 1;
|
||||
height >>= 1;
|
||||
}
|
||||
|
||||
if (i >= 1) {
|
||||
pb = &pb1;
|
||||
p[1] = ext[i];
|
||||
if (url_fopen(pb, fname, URL_WRONLY) < 0)
|
||||
return AVERROR_IO;
|
||||
} else {
|
||||
pb = pb2;
|
||||
}
|
||||
|
||||
ptr = info->pict.data[i];
|
||||
for(j=0;j<height;j++) {
|
||||
put_buffer(pb, ptr, width);
|
||||
ptr += info->pict.linesize[i];
|
||||
}
|
||||
put_flush_packet(pb);
|
||||
if (i >= 1) {
|
||||
url_fclose(pb);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int yuv_probe(AVProbeData *pd)
|
||||
{
|
||||
if (match_ext(pd->filename, "Y"))
|
||||
return AVPROBE_SCORE_MAX;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVImageFormat yuv_image_format = {
|
||||
"yuv",
|
||||
"Y",
|
||||
yuv_probe,
|
||||
yuv_read,
|
||||
(1 << PIX_FMT_YUV420P),
|
||||
yuv_write,
|
||||
};
|
Loading…
x
Reference in New Issue
Block a user