#include "internal.h"
#include "jpegtables.h"
#include "mjpegenc_common.h"
-#include "mpegvideo.h"
#include "mjpeg.h"
#include "mjpegenc.h"
ScanTable scantable;
uint16_t matrix[64];
- int vsample[3];
- int hsample[3];
+ int vsample[4];
+ int hsample[4];
uint16_t huff_code_dc_luminance[12];
uint16_t huff_code_dc_chrominance[12];
const int linesize = frame->linesize[0];
uint16_t (*buffer)[4] = s->scratch;
const int predictor = avctx->prediction_method+1;
- int left[3], top[3], topleft[3];
+ int left[4], top[4], topleft[4];
int x, y, i;
- for (i = 0; i < 3; i++)
+ for (i = 0; i < 4; i++)
buffer[0][i] = 1 << (9 - 1);
for (y = 0; y < height; y++) {
const int modified_predictor = y ? predictor : 1;
uint8_t *ptr = frame->data[0] + (linesize * y);
- if (pb->buf_end - pb->buf - (put_bits_count(pb) >> 3) < width * 3 * 4) {
+ if (pb->buf_end - pb->buf - (put_bits_count(pb) >> 3) < width * 4 * 4) {
av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
return -1;
}
- for (i = 0; i < 3; i++)
+ for (i = 0; i < 4; i++)
top[i]= left[i]= topleft[i]= buffer[0][i];
for (x = 0; x < width; x++) {
buffer[x][1] = ptr[4 * x + 0] - ptr[4 * x + 1] + 0x100;
buffer[x][2] = ptr[4 * x + 2] - ptr[4 * x + 1] + 0x100;
buffer[x][0] = (ptr[4 * x + 0] + 2 * ptr[4 * x + 1] + ptr[4 * x + 2]) >> 2;
+ if (avctx->pix_fmt == AV_PIX_FMT_BGRA)
+ buffer[x][3] = ptr[4 * x + 3];
}
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < 3 + (avctx->pix_fmt == AV_PIX_FMT_BGRA); i++) {
int pred, diff;
PREDICT(pred, topleft[i], top[i], left[i], modified_predictor);
diff = ((left[i] - pred + 0x100) & 0x1FF) - 0x100;
- if (i == 0)
+ if (i == 0 || i == 3)
ff_mjpeg_encode_dc(pb, diff, s->huff_size_dc_luminance, s->huff_code_dc_luminance); //FIXME ugly
else
ff_mjpeg_encode_dc(pb, diff, s->huff_size_dc_chrominance, s->huff_code_dc_chrominance);
int ret, header_bits;
if( avctx->pix_fmt == AV_PIX_FMT_BGR0
- || avctx->pix_fmt == AV_PIX_FMT_BGRA
|| avctx->pix_fmt == AV_PIX_FMT_BGR24)
max_pkt_size += width * height * 3 * 4;
+ else if(avctx->pix_fmt == AV_PIX_FMT_BGRA)
+ max_pkt_size += width * height * 4 * 4;
else {
max_pkt_size += mb_width * mb_height * 3 * 4
* s->hsample[0] * s->vsample[0];