#include "libavcodec/mpeg4audio.h"
#include "libavutil/intfloat_readwrite.h"
#include "libavutil/lzo.h"
+#ifdef CONFIG_ZLIB
+#include <zlib.h>
+#endif
typedef struct Track {
MatroskaTrackType type;
if ((res = ebml_read_uint(matroska, &id, &num)) < 0)
break;
if (num != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP &&
+#ifdef CONFIG_ZLIB
+ num != MATROSKA_TRACK_ENCODING_COMP_ZLIB &&
+#endif
num != MATROSKA_TRACK_ENCODING_COMP_LZO)
av_log(matroska->ctx, AV_LOG_ERROR,
"Unsupported compression algo");
}
pkt_size -= olen;
break;
+#ifdef CONFIG_ZLIB
+ case MATROSKA_TRACK_ENCODING_COMP_ZLIB: {
+ z_stream zstream = {0};
+ pkt_data = NULL;
+ if (inflateInit(&zstream) != Z_OK)
+ continue;
+ zstream.next_in = data;
+ zstream.avail_in = lace_size[n];
+ do {
+ pkt_size *= 3;
+ pkt_data = av_realloc(pkt_data, pkt_size);
+ zstream.avail_out = pkt_size - zstream.total_out;
+ zstream.next_out = pkt_data + zstream.total_out;
+ result = inflate(&zstream, Z_NO_FLUSH);
+ } while (result==Z_OK && pkt_size<10000000);
+ pkt_size = zstream.total_out;
+ inflateEnd(&zstream);
+ if (result != Z_STREAM_END) {
+ av_free(pkt_data);
+ continue;
+ }
+ break;
+ }
+#endif
}
}