*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
*/
typedef struct LclContext {
- AVCodecContext *avctx;
- AVFrame pic;
+ AVCodecContext *avctx;
+ AVFrame pic;
PutBitContext pb;
// Image type
unsigned char mask = 0;
unsigned char maskbit = 0;
unsigned int ofs, cnt;
-
+
while ((srclen > 0) && (destptr < destptr_end)) {
if (maskbit == 0) {
mask = *(srcptr++);
-
+#ifdef CONFIG_DECODERS
/*
*
* Decode a frame
*/
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
{
- LclContext * const c = (LclContext *)avctx->priv_data;
- unsigned char *encoded = (unsigned char *)buf;
+ LclContext * const c = (LclContext *)avctx->priv_data;
+ unsigned char *encoded = (unsigned char *)buf;
unsigned int pixel_ptr;
int row, col;
unsigned char *outptr;
#endif
unsigned int len = buf_size;
- /* no supplementary picture */
- if (buf_size == 0)
- return 0;
-
- if(c->pic.data[0])
- avctx->release_buffer(avctx, &c->pic);
+ if(c->pic.data[0])
+ avctx->release_buffer(avctx, &c->pic);
- c->pic.reference = 0;
- c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
- if(avctx->get_buffer(avctx, &c->pic) < 0){
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
- }
+ c->pic.reference = 0;
+ c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
+ if(avctx->get_buffer(avctx, &c->pic) < 0){
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return -1;
+ }
outptr = c->pic.data[0]; // Output image pointer
c->zstream.next_in = encoded + 8;
c->zstream.avail_in = mthread_inlen;
c->zstream.next_out = c->decomp_buf;
- c->zstream.avail_out = c->decomp_size;
+ c->zstream.avail_out = c->decomp_size;
zret = inflate(&(c->zstream), Z_FINISH);
if ((zret != Z_OK) && (zret != Z_STREAM_END)) {
av_log(avctx, AV_LOG_ERROR, "Mthread1 inflate error: %d\n", zret);
c->zstream.next_in = encoded + 8 + mthread_inlen;
c->zstream.avail_in = len - mthread_inlen;
c->zstream.next_out = c->decomp_buf + mthread_outlen;
- c->zstream.avail_out = c->decomp_size - mthread_outlen;
+ c->zstream.avail_out = c->decomp_size - mthread_outlen;
zret = inflate(&(c->zstream), Z_FINISH);
if ((zret != Z_OK) && (zret != Z_STREAM_END)) {
av_log(avctx, AV_LOG_ERROR, "Mthread2 inflate error: %d\n", zret);
pixel_ptr = row * width * 3;
yq = encoded[pixel_ptr++];
uqvq = encoded[pixel_ptr++];
- uqvq+=(encoded[pixel_ptr++] << 8);
+ uqvq+=(encoded[pixel_ptr++] << 8);
for (col = 1; col < width; col++) {
encoded[pixel_ptr] = yq -= encoded[pixel_ptr];
uqvq -= (encoded[pixel_ptr+1] | (encoded[pixel_ptr+2]<<8));
/* always report that the buffer was completely consumed */
return buf_size;
}
+#endif
-
-
+#ifdef CONFIG_ENCODERS
/*
*
* Encode a frame
#else
init_put_bits(&c->pb, buf, buf_size);
-
+
*p = *pict;
p->pict_type= FF_I_TYPE;
p->key_frame= 1;
-
+
if(avctx->pix_fmt != PIX_FMT_BGR24){
av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
return -1;
c->zstream.avail_in = avctx->width*3;
zret = deflate(&(c->zstream), Z_NO_FLUSH);
if (zret != Z_OK) {
- av_log(avctx, AV_LOG_ERROR, "Deflate error: %d\n", zret);
- return -1;
+ av_log(avctx, AV_LOG_ERROR, "Deflate error: %d\n", zret);
+ return -1;
}
}
zret = deflate(&(c->zstream), Z_FINISH);
return c->zstream.total_out;
#endif
}
+#endif /* CONFIG_ENCODERS */
-
-
+#ifdef CONFIG_DECODERS
/*
*
* Init lcl decoder
#ifdef CONFIG_ZLIB
// Needed if zlib unused or init aborted before inflateInit
- memset(&(c->zstream), 0, sizeof(z_stream));
+ memset(&(c->zstream), 0, sizeof(z_stream));
#endif
if (avctx->extradata_size < 8) {
return 1;
}
- // FIXME: find a better way to prevent integer overflow
- if (((unsigned int)avctx->width > 32000) || ((unsigned int)avctx->height > 32000)) {
- av_log(avctx, AV_LOG_ERROR, "Bad image size (w = %d, h = %d).\n", avctx->width, avctx->height);
+ if (avcodec_check_dimensions(avctx, avctx->width, avctx->height) < 0) {
return 1;
}
- /* Check codec type */
+ /* Check codec type */
if (((avctx->codec_id == CODEC_ID_MSZH) && (*((char *)avctx->extradata + 7) != CODEC_MSZH)) ||
((avctx->codec_id == CODEC_ID_ZLIB) && (*((char *)avctx->extradata + 7) != CODEC_ZLIB))) {
av_log(avctx, AV_LOG_ERROR, "Codec id and codec type mismatch. This should not happen.\n");
break;
default:
if ((c->compression < Z_NO_COMPRESSION) || (c->compression > Z_BEST_COMPRESSION)) {
- av_log(avctx, AV_LOG_ERROR, "Unusupported compression level for ZLIB: (%d).\n", c->compression);
+ av_log(avctx, AV_LOG_ERROR, "Unsupported compression level for ZLIB: (%d).\n", c->compression);
return 1;
}
av_log(avctx, AV_LOG_INFO, "Compression level for ZLIB: (%d).\n", c->compression);
return 1;
}
}
-
- /* Detect flags */
+
+ /* Detect flags */
c->flags = *((char *)avctx->extradata + 6);
if (c->flags & FLAG_MULTITHREAD)
av_log(avctx, AV_LOG_INFO, "Multithread encoder flag set.\n");
return 0;
}
+#endif /* CONFIG_DECODERS */
-
-
+#ifdef CONFIG_ENCODERS
/*
*
* Init lcl encoder
#else
c->avctx= avctx;
-
+
assert(avctx->width && avctx->height);
-
+
avctx->extradata= av_mallocz(8);
avctx->coded_frame= &c->pic;
((uint8_t*)avctx->extradata)[6]= c->flags;
((uint8_t*)avctx->extradata)[7]= CODEC_ZLIB;
c->avctx->extradata_size= 8;
-
+
c->zstream.zalloc = Z_NULL;
c->zstream.zfree = Z_NULL;
c->zstream.opaque = Z_NULL;
return 0;
#endif
}
+#endif /* CONFIG_ENCODERS */
-
-
+#ifdef CONFIG_DECODERS
/*
*
* Uninit lcl decoder
*/
static int decode_end(AVCodecContext *avctx)
{
- LclContext * const c = (LclContext *)avctx->priv_data;
+ LclContext * const c = (LclContext *)avctx->priv_data;
- if (c->pic.data[0])
- avctx->release_buffer(avctx, &c->pic);
+ if (c->pic.data[0])
+ avctx->release_buffer(avctx, &c->pic);
#ifdef CONFIG_ZLIB
inflateEnd(&(c->zstream));
#endif
- return 0;
+ return 0;
}
+#endif
-
-
+#ifdef CONFIG_ENCODERS
/*
*
* Uninit lcl encoder
#ifdef CONFIG_ZLIB
deflateEnd(&(c->zstream));
#endif
-
+
return 0;
}
+#endif
+#ifdef CONFIG_MSZH_DECODER
AVCodec mszh_decoder = {
- "mszh",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MSZH,
- sizeof(LclContext),
- decode_init,
- NULL,
- decode_end,
- decode_frame,
- CODEC_CAP_DR1,
+ "mszh",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_MSZH,
+ sizeof(LclContext),
+ decode_init,
+ NULL,
+ decode_end,
+ decode_frame,
+ CODEC_CAP_DR1,
};
+#endif
-
+#ifdef CONFIG_ZLIB_DECODER
AVCodec zlib_decoder = {
- "zlib",
- CODEC_TYPE_VIDEO,
- CODEC_ID_ZLIB,
- sizeof(LclContext),
- decode_init,
- NULL,
- decode_end,
- decode_frame,
- CODEC_CAP_DR1,
+ "zlib",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_ZLIB,
+ sizeof(LclContext),
+ decode_init,
+ NULL,
+ decode_end,
+ decode_frame,
+ CODEC_CAP_DR1,
};
+#endif
#ifdef CONFIG_ENCODERS
encode_init,
encode_frame,
encode_end,
-// .options = lcl_options,
};
#endif //CONFIG_ENCODERS
projects / ffmpeg / blobdiff