/*
* Raw Video Decoder
- * Copyright (c) 2001 Fabrice Bellard.
+ * Copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
*/
/**
- * @file rawdec.c
+ * @file libavcodec/rawdec.c
* Raw Video Decoder
*/
#include "avcodec.h"
#include "raw.h"
+#include "libavutil/intreadwrite.h"
typedef struct RawVideoContext {
unsigned char * buffer; /* block of memory for holding one frame */
int length; /* number of bytes in buffer */
+ int flip;
AVFrame pic; ///< AVCodecContext.coded_frame
} RawVideoContext;
static const PixelFormatTag pixelFormatBpsAVI[] = {
+ { PIX_FMT_PAL8, 4 },
{ PIX_FMT_PAL8, 8 },
{ PIX_FMT_RGB555, 15 },
{ PIX_FMT_RGB555, 16 },
{ PIX_FMT_BGR24, 24 },
{ PIX_FMT_RGB32, 32 },
- { -1, 0 },
+ { PIX_FMT_NONE, 0 },
};
static const PixelFormatTag pixelFormatBpsMOV[] = {
- /* FIXME fix swscaler to support those */
- /* http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html */
+ { PIX_FMT_PAL8, 4 },
{ PIX_FMT_PAL8, 8 },
+ // FIXME swscale does not support 16 bit in .mov, sample 16bit.mov
+ // http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
{ PIX_FMT_BGR555, 16 },
{ PIX_FMT_RGB24, 24 },
{ PIX_FMT_BGR32_1, 32 },
- { -1, 0 },
+ { PIX_FMT_NONE, 0 },
};
-static int findPixelFormat(const PixelFormatTag *tags, unsigned int fourcc)
+static enum PixelFormat findPixelFormat(const PixelFormatTag *tags, unsigned int fourcc)
{
while (tags->pix_fmt >= 0) {
if (tags->fourcc == fourcc)
return PIX_FMT_YUV420P;
}
-static int raw_init_decoder(AVCodecContext *avctx)
+static av_cold int raw_init_decoder(AVCodecContext *avctx)
{
RawVideoContext *context = avctx->priv_data;
if (avctx->codec_tag == MKTAG('r','a','w',' '))
- avctx->pix_fmt = findPixelFormat(pixelFormatBpsMOV, avctx->bits_per_sample);
+ avctx->pix_fmt = findPixelFormat(pixelFormatBpsMOV, avctx->bits_per_coded_sample);
else if (avctx->codec_tag)
avctx->pix_fmt = findPixelFormat(ff_raw_pixelFormatTags, avctx->codec_tag);
- else if (avctx->bits_per_sample)
- avctx->pix_fmt = findPixelFormat(pixelFormatBpsAVI, avctx->bits_per_sample);
+ else if (avctx->bits_per_coded_sample)
+ avctx->pix_fmt = findPixelFormat(pixelFormatBpsAVI, avctx->bits_per_coded_sample);
context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
context->buffer = av_malloc(context->length);
if (!context->buffer)
return -1;
+ if((avctx->extradata_size >= 9 && !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
+ avctx->codec_tag == MKTAG( 3 , 0 , 0 , 0 ))
+ context->flip=1;
+
return 0;
}
static void flip(AVCodecContext *avctx, AVPicture * picture){
- if(!avctx->codec_tag && avctx->bits_per_sample && picture->linesize[2]==0){
- picture->data[0] += picture->linesize[0] * (avctx->height-1);
- picture->linesize[0] *= -1;
- }
+ picture->data[0] += picture->linesize[0] * (avctx->height-1);
+ picture->linesize[0] *= -1;
}
static int raw_decode(AVCodecContext *avctx,
void *data, int *data_size,
- uint8_t *buf, int buf_size)
+ AVPacket *avpkt)
{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
RawVideoContext *context = avctx->priv_data;
AVFrame * frame = (AVFrame *) data;
frame->interlaced_frame = avctx->coded_frame->interlaced_frame;
frame->top_field_first = avctx->coded_frame->top_field_first;
+ //4bpp raw in avi and mov (yes this is ugly ...)
+ if(avctx->bits_per_coded_sample == 4 && avctx->pix_fmt==PIX_FMT_PAL8 &&
+ (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))){
+ int i;
+ for(i=256*2; i+1 < context->length>>1; i++){
+ context->buffer[2*i+0]= buf[i-256*2]>>4;
+ context->buffer[2*i+1]= buf[i-256*2]&15;
+ }
+ buf= context->buffer + 256*4;
+ buf_size= context->length - 256*4;
+ }
+
if(buf_size < context->length - (avctx->pix_fmt==PIX_FMT_PAL8 ? 256*4 : 0))
return -1;
avctx->palctrl->palette_changed = 0;
}
- flip(avctx, picture);
-
- if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2'))
- {
- // swap fields
- unsigned char *tmp = picture->data[1];
- picture->data[1] = picture->data[2];
- picture->data[2] = tmp;
+ if(context->flip)
+ flip(avctx, picture);
+
+ if ( avctx->codec_tag == MKTAG('Y', 'V', '1', '2')
+ || avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
+ FFSWAP(uint8_t *, picture->data[1], picture->data[2]);
+
+ if(avctx->codec_tag == AV_RL32("yuv2") &&
+ avctx->pix_fmt == PIX_FMT_YUYV422) {
+ int x, y;
+ uint8_t *line = picture->data[0];
+ for(y = 0; y < avctx->height; y++) {
+ for(x = 0; x < avctx->width; x++)
+ line[2*x + 1] ^= 0x80;
+ line += picture->linesize[0];
+ }
}
*data_size = sizeof(AVPicture);
return buf_size;
}
-static int raw_close_decoder(AVCodecContext *avctx)
+static av_cold int raw_close_decoder(AVCodecContext *avctx)
{
RawVideoContext *context = avctx->priv_data;
NULL,
raw_close_decoder,
raw_decode,
+ .long_name = NULL_IF_CONFIG_SMALL("raw video"),
};