uint8_t * planebuf;
uint8_t * ham_buf; ///< temporary buffer for planar to chunky conversation
uint32_t *ham_palbuf; ///< HAM decode table
+ uint32_t *mask_buf; ///< temporary buffer for palette indices
+ uint32_t *mask_palbuf; ///< masking palette table
unsigned compression; ///< delta compression method used
unsigned bpp; ///< bits per plane to decode (differs from bits_per_coded_sample if HAM)
unsigned ham; ///< 0 if non-HAM or number of hold bits (6 for bpp > 6, 4 otherwise)
if (s->flags && count >= 32) { // EHB
for (i = 0; i < 32; i++)
pal[i + 32] = 0xFF000000 | (AV_RB24(palette + i*3) & 0xFEFEFE) >> 1;
+ count = FFMAX(count, 64);
}
} else { // Create gray-scale color palette for bps < 8
count = 1 << avctx->bits_per_coded_sample;
pal[i] = 0xFF000000 | gray2rgb((i * 255) >> avctx->bits_per_coded_sample);
}
}
+ if (s->masking == MASK_HAS_MASK) {
+ memcpy(pal + (1 << avctx->bits_per_coded_sample), pal, count * 4);
+ for (i = 0; i < count; i++)
+ pal[i] &= 0xFFFFFF;
+ } else if (s->masking == MASK_HAS_TRANSPARENT_COLOR &&
+ s->transparency < 1 << avctx->bits_per_coded_sample)
+ pal[s->transparency] &= 0xFFFFFF;
return 0;
}
s->flags = bytestream_get_byte(&buf);
s->transparency = bytestream_get_be16(&buf);
s->masking = bytestream_get_byte(&buf);
- if (s->masking == MASK_HAS_TRANSPARENT_COLOR) {
- av_log(avctx, AV_LOG_ERROR, "Transparency not supported\n");
- return AVERROR_PATCHWELCOME;
- } else if (s->masking != MASK_NONE) {
+ if (s->masking == MASK_HAS_MASK) {
+ if (s->bpp >= 8) {
+ avctx->pix_fmt = PIX_FMT_RGB32;
+ av_freep(&s->mask_buf);
+ av_freep(&s->mask_palbuf);
+ s->mask_buf = av_malloc((s->planesize * 32) + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!s->mask_buf)
+ return AVERROR(ENOMEM);
+ s->mask_palbuf = av_malloc((2 << s->bpp) * sizeof(uint32_t) + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!s->mask_palbuf) {
+ av_freep(&s->mask_buf);
+ return AVERROR(ENOMEM);
+ }
+ }
+ s->bpp++;
+ } else if (s->masking != MASK_NONE && s->masking != MASK_HAS_TRANSPARENT_COLOR) {
av_log(avctx, AV_LOG_ERROR, "Masking not supported\n");
return AVERROR_PATCHWELCOME;
}
if (s->ham) {
int i, count = FFMIN(palette_size / 3, 1 << s->ham);
+ int ham_count;
const uint8_t *const palette = avctx->extradata + AV_RB16(avctx->extradata);
+
s->ham_buf = av_malloc((s->planesize * 8) + FF_INPUT_BUFFER_PADDING_SIZE);
if (!s->ham_buf)
return AVERROR(ENOMEM);
- s->ham_palbuf = av_malloc((8 * (1 << s->ham) * sizeof (uint32_t)) + FF_INPUT_BUFFER_PADDING_SIZE);
+ ham_count = 8 * (1 << s->ham);
+ s->ham_palbuf = av_malloc((ham_count << !!(s->masking == MASK_HAS_MASK)) * sizeof (uint32_t) + FF_INPUT_BUFFER_PADDING_SIZE);
if (!s->ham_palbuf) {
av_freep(&s->ham_buf);
return AVERROR(ENOMEM);
s->ham_palbuf[(i+count*2)*2+1] = tmp;
s->ham_palbuf[(i+count*3)*2+1] = tmp << 8;
}
+ if (s->masking == MASK_HAS_MASK) {
+ for (i = 0; i < ham_count; i++)
+ s->ham_palbuf[(1 << s->bpp) + i] = s->ham_palbuf[i] | 0xFF000000;
+ }
}
}
avctx->pix_fmt = (avctx->bits_per_coded_sample < 8) ||
(avctx->extradata_size >= 2 && palette_size) ? PIX_FMT_PAL8 : PIX_FMT_GRAY8;
} else if (avctx->bits_per_coded_sample <= 32) {
- avctx->pix_fmt = PIX_FMT_BGR32;
+ if (avctx->codec_tag != MKTAG('D','E','E','P'))
+ avctx->pix_fmt = PIX_FMT_BGR32;
} else {
return AVERROR_INVALIDDATA;
}
} while (--buf_size);
}
+static void lookup_pal_indicies(uint32_t *dst, const uint32_t *buf,
+ const uint32_t *const pal, unsigned width)
+{
+ do {
+ *dst++ = pal[*buf++];
+ } while (--width);
+}
+
/**
* Decode one complete byterun1 encoded line.
*
decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, s->planesize);
}
}
+ } else if (avctx->codec_tag == MKTAG('D','E','E','P')) {
+ int raw_width = avctx->width * (av_get_bits_per_pixel(&av_pix_fmt_descriptors[avctx->pix_fmt]) >> 3);
+ int x;
+ for(y = 0; y < avctx->height && buf < buf_end; y++ ) {
+ uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
+ memcpy(row, buf, FFMIN(raw_width, buf_end - buf));
+ buf += raw_width;
+ if (avctx->pix_fmt == PIX_FMT_BGR32) {
+ for(x = 0; x < avctx->width; x++)
+ row[4 * x + 3] = row[4 * x + 3] & 0xF0 | (row[4 * x + 3] >> 4);
+ }
+ }
} else if (avctx->codec_tag == MKTAG('I','L','B','M')) { // interleaved
if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) {
for(y = 0; y < avctx->height; y++ ) {
}
}
}
- } else if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) { // IFF-PBM
- for(y = 0; y < avctx->height; y++ ) {
- uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
- memcpy(row, buf, FFMIN(avctx->width, buf_end - buf));
- buf += avctx->width + (avctx->width % 2); // padding if odd
- }
- } else { // IFF-PBM: HAM to PIX_FMT_BGR32
- for (y = 0; y < avctx->height; y++) {
- uint8_t *row = &s->frame.data[0][ y*s->frame.linesize[0] ];
- memcpy(s->ham_buf, buf, FFMIN(avctx->width, buf_end - buf));
- buf += avctx->width + (avctx->width & 1); // padding if odd
- decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, avctx->width);
+ } else if (avctx->codec_tag == MKTAG('P','B','M',' ')) { // IFF-PBM
+ if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) {
+ for(y = 0; y < avctx->height; y++ ) {
+ uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
+ memcpy(row, buf, FFMIN(avctx->width, buf_end - buf));
+ buf += avctx->width + (avctx->width % 2); // padding if odd
+ }
+ } else { // IFF-PBM: HAM to PIX_FMT_BGR32
+ for (y = 0; y < avctx->height; y++) {
+ uint8_t *row = &s->frame.data[0][ y*s->frame.linesize[0] ];
+ memcpy(s->ham_buf, buf, FFMIN(avctx->width, buf_end - buf));
+ buf += avctx->width + (avctx->width & 1); // padding if odd
+ decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, s->planesize);
+ }
}
}
} else if ((res = avctx->get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return res;
- } else if (avctx->bits_per_coded_sample <= 8 && avctx->pix_fmt != PIX_FMT_GRAY8) {
+ } else if (avctx->pix_fmt == PIX_FMT_PAL8) {
if ((res = ff_cmap_read_palette(avctx, (uint32_t*)s->frame.data[1])) < 0)
return res;
+ } else if (avctx->pix_fmt == PIX_FMT_RGB32 && avctx->bits_per_coded_sample <= 8) {
+ if ((res = ff_cmap_read_palette(avctx, s->mask_palbuf)) < 0)
+ return res;
}
s->init = 1;
decodeplane8(row, s->planebuf, s->planesize, plane);
}
}
+ } else if (avctx->bits_per_coded_sample <= 8) { //8-bit (+ mask) to PIX_FMT_BGR32
+ for (y = 0; y < avctx->height ; y++ ) {
+ uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];
+ memset(s->mask_buf, 0, avctx->width * sizeof(uint32_t));
+ for (plane = 0; plane < s->bpp; plane++) {
+ buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);
+ decodeplane32(s->mask_buf, s->planebuf, s->planesize, plane);
+ }
+ lookup_pal_indicies((uint32_t *) row, s->mask_buf, s->mask_palbuf, avctx->width);
+ }
} else if (s->ham) { // HAM to PIX_FMT_BGR32
for (y = 0; y < avctx->height ; y++) {
uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];
}
}
}
- } else if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) { // IFF-PBM
- for(y = 0; y < avctx->height ; y++ ) {
- uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];
- buf += decode_byterun(row, avctx->width, buf, buf_end);
- }
- } else { // IFF-PBM: HAM to PIX_FMT_BGR32
- for (y = 0; y < avctx->height ; y++) {
- uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];
- buf += decode_byterun(s->ham_buf, avctx->width, buf, buf_end);
- decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, avctx->width);
+ } else if (avctx->codec_tag == MKTAG('P','B','M',' ')) { // IFF-PBM
+ if (avctx->pix_fmt == PIX_FMT_PAL8 || avctx->pix_fmt == PIX_FMT_GRAY8) {
+ for(y = 0; y < avctx->height ; y++ ) {
+ uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];
+ buf += decode_byterun(row, avctx->width, buf, buf_end);
+ }
+ } else if (s->ham) { // IFF-PBM: HAM to PIX_FMT_BGR32
+ for (y = 0; y < avctx->height ; y++) {
+ uint8_t *row = &s->frame.data[0][y*s->frame.linesize[0]];
+ buf += decode_byterun(s->ham_buf, avctx->width, buf, buf_end);
+ decode_ham_plane32((uint32_t *) row, s->ham_buf, s->ham_palbuf, s->planesize);
+ }
+ } else {
+ av_log_ask_for_sample(avctx, "unsupported bpp\n");
+ return AVERROR_INVALIDDATA;
}
}
projects / ffmpeg / blobdiff