43 #define BITSTREAM_READER_LE 50 #define PALETTE_COUNT 256 83 int y = current_offset / dst->
linesize[0];
84 int dx = delta_x + x - ((delta_x + x >=
width) - (delta_x + x < 0)) * width;
85 int dy = delta_y + y + (delta_x + x >=
width) - (delta_x + x < 0);
88 if (motion_offset < 0) {
124 B = bytestream2_get_byte(&s->
mv_ptr);
131 x = -14 + ((B - 56) % 29);
132 y = 8 + ((B - 56) / 29);
135 ff_tlog(s->
avctx,
"motion byte = %d, (x, y) = (%d, %d)\n", B, x, y);
150 B = bytestream2_get_byte(&s->
mv_ptr);
157 x = -(-14 + ((B - 56) % 29));
158 y = -( 8 + ((B - 56) / 29));
161 ff_tlog(s->
avctx,
"motion byte = %d, (x, y) = (%d, %d)\n", B, x, y);
168 unsigned char B, BL, BH;
174 B = bytestream2_get_byte(&s->
mv_ptr);
178 BH = (B >> 4) & 0x0F;
182 ff_tlog(s->
avctx,
"motion byte = %d, (x, y) = (%d, %d)\n", B, x, y);
226 for (y = 0; y < 8; y++) {
227 flags = bytestream2_get_byte(&s->
stream_ptr) | 0x100;
228 for (; flags != 1; flags >>= 1)
237 for (y = 0; y < 8; y += 2) {
238 for (x = 0; x < 8; x += 2, flags >>= 1) {
256 unsigned int flags = 0;
269 for (y = 0; y < 16; y++) {
279 for (x = 0; x < 4; x++, flags >>= 1)
295 for (y = 0; y < 16; y++) {
296 for (x = 0; x < 4; x++, flags >>= 1)
312 for (y = 0; y < 8; y++) {
319 for (x = 0; x < 8; x++, flags >>= 1)
347 for (y = 0; y < 8; y++) {
350 for (x = 0; x < 8; x++, flags >>= 2)
361 for (y = 0; y < 8; y += 2) {
362 for (x = 0; x < 8; x += 2, flags >>= 2) {
378 for (y = 0; y < 8; y++) {
379 for (x = 0; x < 8; x += 2, flags >>= 2) {
386 for (y = 0; y < 8; y += 2) {
387 for (x = 0; x < 8; x++, flags >>= 2) {
418 for (y = 0; y < 16; y++) {
425 for (x = 0; x < 4; x++, flags >>= 2)
436 uint64_t flags = bytestream2_get_le64(&s->
stream_ptr);
444 for (y = 0; y < 16; y++) {
445 for (x = 0; x < 4; x++, flags >>= 2)
471 for (y = 0; y < 8; y++) {
485 for (y = 0; y < 8; y += 2) {
486 for (x = 0; x < 8; x += 2) {
510 for (y = 0; y < 8; y++) {
532 for (y = 0; y < 8; y++) {
547 sample[0] = bytestream2_get_byte(&s->
stream_ptr);
548 sample[1] = bytestream2_get_byte(&s->
stream_ptr);
550 for (y = 0; y < 8; y++) {
551 for (x = 0; x < 8; x += 2) {
585 if (!(P[0] & 0x8000)) {
587 for (y = 0; y < 8; y++) {
588 flags = bytestream2_get_byte(&s->
stream_ptr) | 0x100;
589 for (; flags != 1; flags >>= 1)
590 *pixel_ptr++ = P[flags & 1];
597 for (y = 0; y < 8; y += 2) {
598 for (x = 0; x < 8; x += 2, flags >>= 1) {
601 pixel_ptr[x + s->
stride] =
602 pixel_ptr[x + 1 + s->
stride] = P[flags & 1];
604 pixel_ptr += s->
stride * 2;
615 unsigned int flags = 0;
623 if (!(P[0] & 0x8000)) {
625 for (y = 0; y < 16; y++) {
635 for (x = 0; x < 4; x++, flags >>= 1)
636 *pixel_ptr++ = P[flags & 1];
637 pixel_ptr += s->
stride - 4;
639 if (y == 7) pixel_ptr -= 8 * s->
stride - 4;
648 if (!(P[2] & 0x8000)) {
652 for (y = 0; y < 16; y++) {
653 for (x = 0; x < 4; x++, flags >>= 1)
654 *pixel_ptr++ = P[flags & 1];
655 pixel_ptr += s->
stride - 4;
658 pixel_ptr -= 8 * s->
stride - 4;
669 for (y = 0; y < 8; y++) {
676 for (x = 0; x < 8; x++, flags >>= 1)
677 *pixel_ptr++ = P[flags & 1];
694 for (x = 0; x < 4; x++)
697 if (!(P[0] & 0x8000)) {
698 if (!(P[2] & 0x8000)) {
701 for (y = 0; y < 8; y++) {
704 for (x = 0; x < 8; x++, flags >>= 2)
705 *pixel_ptr++ = P[flags & 0x03];
715 for (y = 0; y < 8; y += 2) {
716 for (x = 0; x < 8; x += 2, flags >>= 2) {
719 pixel_ptr[x + s->
stride] =
720 pixel_ptr[x + 1 + s->
stride] = P[flags & 0x03];
722 pixel_ptr += s->
stride * 2;
731 if (!(P[2] & 0x8000)) {
732 for (y = 0; y < 8; y++) {
733 for (x = 0; x < 8; x += 2, flags >>= 2) {
735 pixel_ptr[x + 1] = P[flags & 0x03];
740 for (y = 0; y < 8; y += 2) {
741 for (x = 0; x < 8; x++, flags >>= 2) {
743 pixel_ptr[x + s->
stride] = P[flags & 0x03];
745 pixel_ptr += s->
stride * 2;
761 for (x = 0; x < 4; x++)
766 if (!(P[0] & 0x8000)) {
769 for (y = 0; y < 16; y++) {
773 for (x = 0; x < 4; x++)
778 for (x = 0; x < 4; x++, flags >>= 2)
779 *pixel_ptr++ = P[flags & 0x03];
781 pixel_ptr += s->
stride - 4;
783 if (y == 7) pixel_ptr -= 8 * s->
stride - 4;
789 uint64_t flags = bytestream2_get_le64(&s->
stream_ptr);
791 for (x = 4; x < 8; x++)
793 vert = !(P[4] & 0x8000);
798 for (y = 0; y < 16; y++) {
799 for (x = 0; x < 4; x++, flags >>= 2)
800 *pixel_ptr++ = P[flags & 0x03];
803 pixel_ptr += s->
stride - 4;
805 if (y == 7) pixel_ptr -= 8 * s->
stride - 4;
806 }
else if (y & 1) pixel_ptr += s->
line_inc;
826 for (y = 0; y < 8; y++) {
827 for (x = 0; x < 8; x++)
828 pixel_ptr[x] = bytestream2_get_le16(&s->
stream_ptr);
842 for (y = 0; y < 8; y += 2) {
843 for (x = 0; x < 8; x += 2) {
846 pixel_ptr[x + s->
stride] =
849 pixel_ptr += s->
stride * 2;
863 for (y = 0; y < 8; y++) {
868 for (x = 0; x < 8; x++)
869 pixel_ptr[x] = P[x >> 2];
886 for (y = 0; y < 8; y++) {
887 for (x = 0; x < 8; x++)
923 for (line = 0; line < 8; ++line) {
939 off_x = ((uint16_t)opcode - 0xC000) % frame->
width;
940 off_y = ((uint16_t)opcode - 0xC000) / frame->
width;
942 }
else if (opcode > 0) {
943 off_x = ((uint16_t)opcode - 0x4000) % frame->
width;
944 off_y = ((uint16_t)opcode - 0x4000) / frame->
width;
945 copy_from(s, frame, frame, off_x, off_y);
969 for (pass = 0; pass < 2; ++
pass) {
973 opcode = bytestream2_get_le16(&decoding_map_ptr);
976 " block @ (%3d, %3d): opcode 0x%X, data ptr offset %d\n",
987 "decode finished with %d bytes left over\n",
997 for (line = 0; line < 8; ++line) {
1012 }
else if (opcode > 0) {
1025 int pass, x, y, changed_block;
1026 int16_t opcode, skip;
1043 for (pass = 0; pass < 2; ++
pass) {
1046 skip = bytestream2_get_le16(&skip_map_ptr);
1053 if (skip != -0x8000 && skip) {
1054 opcode = bytestream2_get_le16(&decoding_map_ptr);
1060 skip = bytestream2_get_le16(&skip_map_ptr);
1068 skip = bytestream2_get_le16(&skip_map_ptr);
1075 if (skip != -0x8000 && skip) {
1081 skip = bytestream2_get_le16(&skip_map_ptr);
1084 if (changed_block) {
1099 "decode finished with %d bytes left over\n",
1107 unsigned char opcode;
1134 " block @ (%3d, %3d): encoding 0x%X, data ptr offset %d\n",
1155 "decode finished with %d bytes left over\n",
1199 void *
data,
int *got_frame,
1203 int buf_size = avpkt->
size;
1209 int video_data_size;
1233 frame_format =
AV_RL8(buf);
1234 send_buffer =
AV_RL8(buf + 1);
1235 video_data_size =
AV_RL16(buf + 2);
1239 switch (frame_format) {
1338 switch (frame_format) {
1350 *got_frame = send_buffer;
1375 .
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
static void ipvideo_format_06_secondpass(IpvideoContext *s, AVFrame *frame, int16_t opcode)
unsigned char * pixel_ptr
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static av_cold int init(AVCodecContext *avctx)
static void(*const ipvideo_format_06_passes[])(IpvideoContext *s, AVFrame *frame, int16_t op)
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 void(*const ipvideo_format_10_passes[])(IpvideoContext *s, AVFrame *frame, int16_t op)
static int ipvideo_decode_block_opcode_0x4(IpvideoContext *s, AVFrame *frame)
static void error(const char *err)
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
static void ipvideo_decode_format_11_opcodes(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 bits 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)
static void ipvideo_format_10_secondpass(IpvideoContext *s, AVFrame *frame, int16_t opcode)
bitstream reader API header.
static void ipvideo_format_06_firstpass(IpvideoContext *s, AVFrame *frame, int16_t opcode)
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
static int get_bits_left(GetBitContext *gb)
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)
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette...
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)
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
static void ipvideo_decode_format_10_opcodes(IpvideoContext *s, AVFrame *frame)
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)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
int flags
AV_CODEC_FLAG_*.
static av_cold int ipvideo_decode_end(AVCodecContext *avctx)
const char * name
Name of the codec implementation.
static void ipvideo_decode_format_06_opcodes(IpvideoContext *s, AVFrame *frame)
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 format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Libavcodec external API header.
typedef void(RENAME(mix_any_func_type))
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.
AVFrame * cur_decode_frame
static int ipvideo_decode_block_opcode_0x6_16(IpvideoContext *s, AVFrame *frame)
static void ipvideo_format_10_firstpass(IpvideoContext *s, AVFrame *frame, int16_t opcode)
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)
#define flags(name, subs,...)
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 op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
common internal api header.
static int ipvideo_decode_block_opcode_0x9_16(IpvideoContext *s, AVFrame *frame)
#define AV_CODEC_CAP_PARAM_CHANGE
Codec supports changed parameters at any point.
int upper_motion_limit_offset
AVFrame * prev_decode_frame
#define AV_PIX_FMT_RGB555
static int ipvideo_decode_block_opcode_0xF(IpvideoContext *s, AVFrame *frame)
const unsigned char * skip_map
static int ipvideo_decode_block_opcode_0xB(IpvideoContext *s, AVFrame *frame)
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
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)
#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.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.