static int decode_frame_byterun1(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) { IffContext *s = avctx->priv_data; const uint8_t *buf = avpkt->data; unsigned buf_size = avpkt->size; const uint8_t *buf_end = buf+buf_size; unsigned y, plane, x; if (avctx->reget_buffer(avctx, &s->frame) < 0){ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } for(y = 0; y < avctx->height ; y++ ) { uint8_t *row = &s->frame.data[0][ y*s->frame.linesize[0] ]; if (avctx->codec_tag == MKTAG('I','L','B','M')) { //interleaved memset(row, 0, avctx->pix_fmt == PIX_FMT_PAL8 ? avctx->width : (avctx->width * 4)); for (plane = 0; plane < avctx->bits_per_coded_sample; plane++) { for(x = 0; x < s->planesize && buf < buf_end; ) { int8_t value = *buf++; unsigned length; if (value >= 0) { length = value + 1; memcpy(s->planebuf + x, buf, FFMIN3(length, s->planesize - x, buf_end - buf)); buf += length; } else if (value > -128) { length = -value + 1; memset(s->planebuf + x, *buf++, FFMIN(length, s->planesize - x)); } else { //noop continue; } x += length; } if (avctx->pix_fmt == PIX_FMT_PAL8) { decodeplane8(row, s->planebuf, s->planesize, avctx->bits_per_coded_sample, plane); } else { //PIX_FMT_BGR32 decodeplane32((uint32_t *) row, s->planebuf, s->planesize, avctx->bits_per_coded_sample, plane); } } } else { for(x = 0; x < avctx->width && buf < buf_end; ) { int8_t value = *buf++; unsigned length; if (value >= 0) { length = value + 1; memcpy(row + x, buf, FFMIN3(length, buf_end - buf, avctx->width - x)); buf += length; } else if (value > -128) { length = -value + 1; memset(row + x, *buf++, FFMIN(length, avctx->width - x)); } else { //noop continue; } x += length; } } } *data_size = sizeof(AVFrame); *(AVFrame*)data = s->frame; return buf_size; }
static int decode_frame_byterun1(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) { IffContext *s = avctx->priv_data; const uint8_t *buf = avpkt->data; unsigned buf_size = avpkt->size; const uint8_t *buf_end = buf+buf_size; unsigned y, plane, x; if (avctx->reget_buffer(avctx, &s->frame) < 0){ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } for(y = 0; y < avctx->height ; y++ ) { uint8_t *row = &s->frame.data[0][ y*s->frame.linesize[0] ]; if (avctx->codec_tag == MKTAG('I','L','B','M')) {  