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Code Issues Releases Activity

img2: add pixel_format private option.

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This commit is contained in:
Anton Khirnov 2011-06-04 00:13:35 +02:00
parent c1dcbfddf9
commit f33e2a51d9
1 changed files with 33 additions and 2 deletions
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35
libavformat/img2.c
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@ -22,18 +22,23 @@
#include "libavutil/intreadwrite.h"
#include "libavutil/avstring.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include <strings.h>
typedef struct {
const AVClass *class; /**< Class for private options. */
int img_first;
int img_last;
int img_number;
int img_count;
int is_pipe;
char path[1024];
char *pixel_format; /**< Set by a private option. */
} VideoData;
typedef struct {
@ -200,6 +205,7 @@ static int read_header(AVFormatContext *s1, AVFormatParameters *ap)
VideoData *s = s1->priv_data;
int first_index, last_index;
AVStream *st;
enum PixelFormat pix_fmt = PIX_FMT_NONE;
s1->ctx_flags |= AVFMTCTX_NOHEADER;
@ -208,6 +214,15 @@ static int read_header(AVFormatContext *s1, AVFormatParameters *ap)
return AVERROR(ENOMEM);
}
if (s->pixel_format && (pix_fmt = av_get_pix_fmt(s->pixel_format)) == PIX_FMT_NONE) {
av_log(s1, AV_LOG_ERROR, "No such pixel format: %s.\n", s->pixel_format);
return AVERROR(EINVAL);
}
#if FF_API_FORMAT_PARAMETERS
if (ap->pix_fmt != PIX_FMT_NONE)
pix_fmt = ap->pix_fmt;
#endif
av_strlcpy(s->path, s1->filename, sizeof(s->path));
s->img_number = 0;
s->img_count = 0;
@ -252,8 +267,8 @@ static int read_header(AVFormatContext *s1, AVFormatParameters *ap)
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = av_str2id(img_tags, s->path);
}
if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ap->pix_fmt != PIX_FMT_NONE)
st->codec->pix_fmt = ap->pix_fmt;
if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO && pix_fmt != PIX_FMT_NONE)
st->codec->pix_fmt = pix_fmt;
return 0;
}
@ -421,6 +436,20 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
#endif /* CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER */
#define OFFSET(x) offsetof(VideoData, x)
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
{ NULL },
};
static const AVClass img2_class = {
.class_name = "image2 demuxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
/* input */
#if CONFIG_IMAGE2_DEMUXER
AVInputFormat ff_image2_demuxer = {
@ -431,6 +460,7 @@ AVInputFormat ff_image2_demuxer = {
.read_header = read_header,
.read_packet = read_packet,
.flags = AVFMT_NOFILE,
.priv_class = &img2_class,
};
#endif
#if CONFIG_IMAGE2PIPE_DEMUXER
@ -440,6 +470,7 @@ AVInputFormat ff_image2pipe_demuxer = {
.priv_data_size = sizeof(VideoData),
.read_header = read_header,
.read_packet = read_packet,
.priv_class = &img2_class,
};
#endif