* Raw Video Decoder
* Copyright (c) 2001 Fabrice Bellard
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "raw.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
typedef struct RawVideoContext {
+ AVClass *av_class;
uint32_t palette[AVPALETTE_COUNT];
unsigned char * buffer; /* block of memory for holding one frame */
int length; /* number of bytes in buffer */
int flip;
AVFrame pic; ///< AVCodecContext.coded_frame
+ int tff;
} RawVideoContext;
+static const AVOption options[]={
+{"top", "top field first", offsetof(RawVideoContext, tff), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM|AV_OPT_FLAG_VIDEO_PARAM},
+{NULL}
+};
+static const AVClass class = { "rawdec", NULL, options, LIBAVUTIL_VERSION_INT };
+
static const PixelFormatTag pix_fmt_bps_avi[] = {
+ { PIX_FMT_MONOWHITE, 1 },
+ { PIX_FMT_PAL8, 2 },
{ PIX_FMT_PAL8, 4 },
{ PIX_FMT_PAL8, 8 },
{ PIX_FMT_RGB444, 12 },
{ PIX_FMT_RGB555, 15 },
{ PIX_FMT_RGB555, 16 },
{ PIX_FMT_BGR24, 24 },
- { PIX_FMT_RGB32, 32 },
+ { PIX_FMT_BGRA, 32 },
{ PIX_FMT_NONE, 0 },
};
{ PIX_FMT_NONE, 0 },
};
-static enum PixelFormat find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
+enum PixelFormat ff_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc)
{
while (tags->pix_fmt >= 0) {
if (tags->fourcc == fourcc)
RawVideoContext *context = avctx->priv_data;
if (avctx->codec_tag == MKTAG('r','a','w',' '))
- avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_mov, avctx->bits_per_coded_sample);
+ avctx->pix_fmt = ff_find_pix_fmt(pix_fmt_bps_mov, avctx->bits_per_coded_sample);
else if (avctx->codec_tag == MKTAG('W','R','A','W'))
- avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample);
+ avctx->pix_fmt = ff_find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample);
else if (avctx->codec_tag)
- avctx->pix_fmt = find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
+ avctx->pix_fmt = ff_find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
else if (avctx->pix_fmt == PIX_FMT_NONE && avctx->bits_per_coded_sample)
- avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample);
+ avctx->pix_fmt = ff_find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample);
+
+ if (avctx->pix_fmt == PIX_FMT_NONE) {
+ av_log(avctx, AV_LOG_ERROR, "Pixel format was not specified and cannot be detected\n");
+ return AVERROR(EINVAL);
+ }
ff_set_systematic_pal2(context->palette, avctx->pix_fmt);
- context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
if((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) &&
avctx->pix_fmt==PIX_FMT_PAL8 &&
(!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))){
+ context->length = avpicture_get_size(avctx->pix_fmt, FFALIGN(avctx->width, 16), avctx->height);
context->buffer = av_malloc(context->length);
if (!context->buffer)
return -1;
+ } else {
+ context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
}
context->pic.pict_type = AV_PICTURE_TYPE_I;
context->pic.key_frame = 1;
avctx->coded_frame= &context->pic;
if((avctx->extradata_size >= 9 && !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
+ avctx->codec_tag == MKTAG('c','y','u','v') ||
avctx->codec_tag == MKTAG(3, 0, 0, 0) || avctx->codec_tag == MKTAG('W','R','A','W'))
context->flip=1;
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
+ int linesize_align = 4;
RawVideoContext *context = avctx->priv_data;
AVFrame *frame = data;
frame->top_field_first = avctx->coded_frame->top_field_first;
frame->reordered_opaque = avctx->reordered_opaque;
frame->pkt_pts = avctx->pkt->pts;
+ frame->pkt_pos = avctx->pkt->pos;
+
+ if(context->tff>=0){
+ frame->interlaced_frame = 1;
+ frame->top_field_first = context->tff;
+ }
if(buf_size < context->length - (avctx->pix_fmt==PIX_FMT_PAL8 ? 256*4 : 0))
return -1;
uint8_t *dst = context->buffer;
buf_size = context->length - 256*4;
if (avctx->bits_per_coded_sample == 4){
- for(i=0; 2*i+1 < buf_size; i++){
+ for(i=0; 2*i+1 < buf_size && i<avpkt->size; i++){
dst[2*i+0]= buf[i]>>4;
dst[2*i+1]= buf[i]&15;
}
- } else
- for(i=0; 4*i+3 < buf_size; i++){
+ linesize_align = 8;
+ } else {
+ for(i=0; 4*i+3 < buf_size && i<avpkt->size; i++){
dst[4*i+0]= buf[i]>>6;
dst[4*i+1]= buf[i]>>4&3;
dst[4*i+2]= buf[i]>>2&3;
dst[4*i+3]= buf[i] &3;
}
+ linesize_align = 16;
+ }
buf= dst;
}
frame->palette_has_changed = 1;
}
}
- if(avctx->pix_fmt==PIX_FMT_BGR24 && ((frame->linesize[0]+3)&~3)*avctx->height <= buf_size)
- frame->linesize[0] = (frame->linesize[0]+3)&~3;
+ if((avctx->pix_fmt==PIX_FMT_BGR24 ||
+ avctx->pix_fmt==PIX_FMT_GRAY8 ||
+ avctx->pix_fmt==PIX_FMT_RGB555LE ||
+ avctx->pix_fmt==PIX_FMT_RGB555BE ||
+ avctx->pix_fmt==PIX_FMT_RGB565LE ||
+ avctx->pix_fmt==PIX_FMT_MONOWHITE ||
+ avctx->pix_fmt==PIX_FMT_PAL8) &&
+ FFALIGN(frame->linesize[0], linesize_align)*avctx->height <= buf_size)
+ frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);
if(context->flip)
flip(avctx, picture);
if ( avctx->codec_tag == MKTAG('Y', 'V', '1', '2')
+ || avctx->codec_tag == MKTAG('Y', 'V', '1', '6')
+ || avctx->codec_tag == MKTAG('Y', 'V', '2', '4')
|| avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
FFSWAP(uint8_t *, picture->data[1], picture->data[2]);
.close = raw_close_decoder,
.decode = raw_decode,
.long_name = NULL_IF_CONFIG_SMALL("raw video"),
+ .priv_class= &class,
};
projects / ffmpeg / blobdiff