44 #define BITSTREAM_READER_LE
48 #define PALETTE_COUNT 256
72 int motion_offset = current_offset + delta_y * dst->
linesize[0]
74 if (motion_offset < 0) {
110 B = bytestream2_get_byte(&s->
mv_ptr);
117 x = -14 + ((B - 56) % 29);
118 y = 8 + ((B - 56) / 29);
121 ff_tlog(s->
avctx,
"motion byte = %d, (x, y) = (%d, %d)\n", B, x, y);
136 B = bytestream2_get_byte(&s->
mv_ptr);
143 x = -(-14 + ((B - 56) % 29));
144 y = -( 8 + ((B - 56) / 29));
147 ff_tlog(s->
avctx,
"motion byte = %d, (x, y) = (%d, %d)\n", B, x, y);
154 unsigned char B, BL, BH;
160 B = bytestream2_get_byte(&s->
mv_ptr);
164 BH = (B >> 4) & 0x0F;
168 ff_tlog(s->
avctx,
"motion byte = %d, (x, y) = (%d, %d)\n", B, x, y);
212 for (y = 0; y < 8; y++) {
213 flags = bytestream2_get_byte(&s->
stream_ptr) | 0x100;
214 for (; flags != 1; flags >>= 1)
223 for (y = 0; y < 8; y += 2) {
224 for (x = 0; x < 8; x += 2, flags >>= 1) {
242 unsigned int flags = 0;
255 for (y = 0; y < 16; y++) {
265 for (x = 0; x < 4; x++, flags >>= 1)
281 for (y = 0; y < 16; y++) {
282 for (x = 0; x < 4; x++, flags >>= 1)
298 for (y = 0; y < 8; y++) {
305 for (x = 0; x < 8; x++, flags >>= 1)
333 for (y = 0; y < 8; y++) {
336 for (x = 0; x < 8; x++, flags >>= 2)
347 for (y = 0; y < 8; y += 2) {
348 for (x = 0; x < 8; x += 2, flags >>= 2) {
364 for (y = 0; y < 8; y++) {
365 for (x = 0; x < 8; x += 2, flags >>= 2) {
372 for (y = 0; y < 8; y += 2) {
373 for (x = 0; x < 8; x++, flags >>= 2) {
404 for (y = 0; y < 16; y++) {
411 for (x = 0; x < 4; x++, flags >>= 2)
422 uint64_t flags = bytestream2_get_le64(&s->
stream_ptr);
430 for (y = 0; y < 16; y++) {
431 for (x = 0; x < 4; x++, flags >>= 2)
457 for (y = 0; y < 8; y++) {
471 for (y = 0; y < 8; y += 2) {
472 for (x = 0; x < 8; x += 2) {
496 for (y = 0; y < 8; y++) {
518 for (y = 0; y < 8; y++) {
533 sample[0] = bytestream2_get_byte(&s->
stream_ptr);
534 sample[1] = bytestream2_get_byte(&s->
stream_ptr);
536 for (y = 0; y < 8; y++) {
537 for (x = 0; x < 8; x += 2) {
565 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
571 if (!(P[0] & 0x8000)) {
573 for (y = 0; y < 8; y++) {
574 flags = bytestream2_get_byte(&s->
stream_ptr) | 0x100;
575 for (; flags != 1; flags >>= 1)
576 *pixel_ptr++ = P[flags & 1];
583 for (y = 0; y < 8; y += 2) {
584 for (x = 0; x < 8; x += 2, flags >>= 1) {
587 pixel_ptr[x + s->
stride] =
588 pixel_ptr[x + 1 + s->
stride] = P[flags & 1];
590 pixel_ptr += s->
stride * 2;
601 unsigned int flags = 0;
602 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
609 if (!(P[0] & 0x8000)) {
611 for (y = 0; y < 16; y++) {
621 for (x = 0; x < 4; x++, flags >>= 1)
622 *pixel_ptr++ = P[flags & 1];
623 pixel_ptr += s->
stride - 4;
625 if (y == 7) pixel_ptr -= 8 * s->
stride - 4;
634 if (!(P[2] & 0x8000)) {
638 for (y = 0; y < 16; y++) {
639 for (x = 0; x < 4; x++, flags >>= 1)
640 *pixel_ptr++ = P[flags & 1];
641 pixel_ptr += s->
stride - 4;
644 pixel_ptr -= 8 * s->
stride - 4;
655 for (y = 0; y < 8; y++) {
662 for (x = 0; x < 8; x++, flags >>= 1)
663 *pixel_ptr++ = P[flags & 1];
677 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
680 for (x = 0; x < 4; x++)
683 if (!(P[0] & 0x8000)) {
684 if (!(P[2] & 0x8000)) {
687 for (y = 0; y < 8; y++) {
690 for (x = 0; x < 8; x++, flags >>= 2)
691 *pixel_ptr++ = P[flags & 0x03];
701 for (y = 0; y < 8; y += 2) {
702 for (x = 0; x < 8; x += 2, flags >>= 2) {
705 pixel_ptr[x + s->
stride] =
706 pixel_ptr[x + 1 + s->
stride] = P[flags & 0x03];
708 pixel_ptr += s->
stride * 2;
717 if (!(P[2] & 0x8000)) {
718 for (y = 0; y < 8; y++) {
719 for (x = 0; x < 8; x += 2, flags >>= 2) {
721 pixel_ptr[x + 1] = P[flags & 0x03];
726 for (y = 0; y < 8; y += 2) {
727 for (x = 0; x < 8; x++, flags >>= 2) {
729 pixel_ptr[x + s->
stride] = P[flags & 0x03];
731 pixel_ptr += s->
stride * 2;
745 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
747 for (x = 0; x < 4; x++)
752 if (!(P[0] & 0x8000)) {
755 for (y = 0; y < 16; y++) {
759 for (x = 0; x < 4; x++)
764 for (x = 0; x < 4; x++, flags >>= 2)
765 *pixel_ptr++ = P[flags & 0x03];
767 pixel_ptr += s->
stride - 4;
769 if (y == 7) pixel_ptr -= 8 * s->
stride - 4;
775 uint64_t flags = bytestream2_get_le64(&s->
stream_ptr);
777 for (x = 4; x < 8; x++)
779 vert = !(P[4] & 0x8000);
784 for (y = 0; y < 16; y++) {
785 for (x = 0; x < 4; x++, flags >>= 2)
786 *pixel_ptr++ = P[flags & 0x03];
789 pixel_ptr += s->
stride - 4;
791 if (y == 7) pixel_ptr -= 8 * s->
stride - 4;
792 }
else if (y & 1) pixel_ptr += s->
line_inc;
809 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
812 for (y = 0; y < 8; y++) {
813 for (x = 0; x < 8; x++)
814 pixel_ptr[x] = bytestream2_get_le16(&s->
stream_ptr);
825 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
828 for (y = 0; y < 8; y += 2) {
829 for (x = 0; x < 8; x += 2) {
832 pixel_ptr[x + s->
stride] =
835 pixel_ptr += s->
stride * 2;
846 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
849 for (y = 0; y < 8; y++) {
854 for (x = 0; x < 8; x++)
855 pixel_ptr[x] = P[x >> 2];
867 uint16_t *pixel_ptr = (uint16_t*)s->
pixel_ptr;
872 for (y = 0; y < 8; y++) {
873 for (x = 0; x < 8; x++)
907 unsigned char opcode;
932 " block @ (%3d, %3d): encoding 0x%X, data ptr offset %d\n",
953 "decode finished with %d bytes left over\n",
981 void *
data,
int *got_frame,
985 int buf_size = avpkt->
size;
995 if (buf_size < s->decoding_map_size)
1043 .
name =
"interplayvideo",
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
const unsigned char * decoding_map
ptrdiff_t const GLvoid * data
unsigned char * pixel_ptr
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static av_cold int init(AVCodecContext *avctx)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
static int ipvideo_decode_block_opcode_0x4(IpvideoContext *s, AVFrame *frame)
static int(*const ipvideo_decode_block16[])(IpvideoContext *s, AVFrame *frame)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
static int ipvideo_decode_block_opcode_0xA(IpvideoContext *s, AVFrame *frame)
static int ipvideo_decode_block_opcode_0x2(IpvideoContext *s, AVFrame *frame)
8 bit with AV_PIX_FMT_RGB32 palette
static int ipvideo_decode_block_opcode_0x9(IpvideoContext *s, AVFrame *frame)
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
static int ipvideo_decode_block_opcode_0x7_16(IpvideoContext *s, AVFrame *frame)
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
bitstream reader API header.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static int ipvideo_decode_block_opcode_0x5(IpvideoContext *s, AVFrame *frame)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int ipvideo_decode_block_opcode_0x8_16(IpvideoContext *s, AVFrame *frame)
#define CODEC_CAP_PARAM_CHANGE
Codec supports changed parameters at any point.
An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static int ipvideo_decode_block_opcode_0xD(IpvideoContext *s, AVFrame *frame)
static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g, uint8_t *dst, unsigned int size)
static int ipvideo_decode_block_opcode_0xE_16(IpvideoContext *s, AVFrame *frame)
static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
static av_cold int ipvideo_decode_end(AVCodecContext *avctx)
const char * name
Name of the codec implementation.
Libavcodec external API header.
static int ipvideo_decode_block_opcode_0xC_16(IpvideoContext *s, AVFrame *frame)
GetByteContext stream_ptr
static int ipvideo_decode_block_opcode_0x0(IpvideoContext *s, AVFrame *frame)
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
static int ipvideo_decode_block_opcode_0x8(IpvideoContext *s, AVFrame *frame)
int width
picture width / height.
static int ipvideo_decode_block_opcode_0x3(IpvideoContext *s, AVFrame *frame)
static int copy_from(IpvideoContext *s, AVFrame *src, AVFrame *dst, int delta_x, int delta_y)
static int ipvideo_decode_block_opcode_0x1(IpvideoContext *s, AVFrame *frame)
AVFrame * second_last_frame
static av_always_inline int bytestream2_tell(GetByteContext *g)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
static int ipvideo_decode_block_opcode_0x6(IpvideoContext *s, AVFrame *frame)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
static int ipvideo_decode_block_opcode_0xD_16(IpvideoContext *s, AVFrame *frame)
static av_cold int ipvideo_decode_init(AVCodecContext *avctx)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
int palette_has_changed
Tell user application that palette has changed from previous frame.
static int ipvideo_decode_block_opcode_0x6_16(IpvideoContext *s, AVFrame *frame)
AVCodec ff_interplay_video_decoder
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
static int ipvideo_decode_block_opcode_0xB_16(IpvideoContext *s, AVFrame *frame)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static int ipvideo_decode_block_opcode_0xE(IpvideoContext *s, AVFrame *frame)
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
static void ipvideo_decode_opcodes(IpvideoContext *s, AVFrame *frame)
common internal api header.
static int ipvideo_decode_block_opcode_0x9_16(IpvideoContext *s, AVFrame *frame)
int upper_motion_limit_offset
#define AV_PIX_FMT_RGB555
static int ipvideo_decode_block_opcode_0xF(IpvideoContext *s, AVFrame *frame)
static int ipvideo_decode_block_opcode_0xB(IpvideoContext *s, AVFrame *frame)
static int ipvideo_decode_block_opcode_0xA_16(IpvideoContext *s, AVFrame *frame)
int frame_number
Frame counter, set by libavcodec.
static int ipvideo_decode_block_opcode_0x7(IpvideoContext *s, AVFrame *frame)
uint8_t * av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
#define FFSWAP(type, a, b)
static int(*const ipvideo_decode_block[])(IpvideoContext *s, AVFrame *frame)
static int ipvideo_decode_block_opcode_0xC(IpvideoContext *s, AVFrame *frame)
This structure stores compressed data.
static int ipvideo_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.