40 #define RV_GET_MAJOR_VER(x) ((x) >> 28) 41 #define RV_GET_MINOR_VER(x) (((x) >> 20) & 0xFF) 42 #define RV_GET_MICRO_VER(x) (((x) >> 12) & 0xFF) 44 #define DC_VLC_BITS 14 // FIXME find a better solution 53 0x3e7f, 0x0f00, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05, 0x0f06,
54 0x0f07, 0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0c, 0x0f0d, 0x0f0e,
55 0x0f0f, 0x0f10, 0x0f11, 0x0f12, 0x0f13, 0x0f14, 0x0f15, 0x0f16,
56 0x0f17, 0x0f18, 0x0f19, 0x0f1a, 0x0f1b, 0x0f1c, 0x0f1d, 0x0f1e,
57 0x0f1f, 0x0f20, 0x0f21, 0x0f22, 0x0f23, 0x0f24, 0x0f25, 0x0f26,
58 0x0f27, 0x0f28, 0x0f29, 0x0f2a, 0x0f2b, 0x0f2c, 0x0f2d, 0x0f2e,
59 0x0f2f, 0x0f30, 0x0f31, 0x0f32, 0x0f33, 0x0f34, 0x0f35, 0x0f36,
60 0x0f37, 0x0f38, 0x0f39, 0x0f3a, 0x0f3b, 0x0f3c, 0x0f3d, 0x0f3e,
61 0x0f3f, 0x0380, 0x0381, 0x0382, 0x0383, 0x0384, 0x0385, 0x0386,
62 0x0387, 0x0388, 0x0389, 0x038a, 0x038b, 0x038c, 0x038d, 0x038e,
63 0x038f, 0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396,
64 0x0397, 0x0398, 0x0399, 0x039a, 0x039b, 0x039c, 0x039d, 0x039e,
65 0x039f, 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6,
66 0x00c7, 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce,
67 0x00cf, 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056,
68 0x0057, 0x0020, 0x0021, 0x0022, 0x0023, 0x000c, 0x000d, 0x0004,
69 0x0000, 0x0005, 0x000e, 0x000f, 0x0024, 0x0025, 0x0026, 0x0027,
70 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
71 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
72 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
73 0x03a0, 0x03a1, 0x03a2, 0x03a3, 0x03a4, 0x03a5, 0x03a6, 0x03a7,
74 0x03a8, 0x03a9, 0x03aa, 0x03ab, 0x03ac, 0x03ad, 0x03ae, 0x03af,
75 0x03b0, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7,
76 0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf,
77 0x0f40, 0x0f41, 0x0f42, 0x0f43, 0x0f44, 0x0f45, 0x0f46, 0x0f47,
78 0x0f48, 0x0f49, 0x0f4a, 0x0f4b, 0x0f4c, 0x0f4d, 0x0f4e, 0x0f4f,
79 0x0f50, 0x0f51, 0x0f52, 0x0f53, 0x0f54, 0x0f55, 0x0f56, 0x0f57,
80 0x0f58, 0x0f59, 0x0f5a, 0x0f5b, 0x0f5c, 0x0f5d, 0x0f5e, 0x0f5f,
81 0x0f60, 0x0f61, 0x0f62, 0x0f63, 0x0f64, 0x0f65, 0x0f66, 0x0f67,
82 0x0f68, 0x0f69, 0x0f6a, 0x0f6b, 0x0f6c, 0x0f6d, 0x0f6e, 0x0f6f,
83 0x0f70, 0x0f71, 0x0f72, 0x0f73, 0x0f74, 0x0f75, 0x0f76, 0x0f77,
84 0x0f78, 0x0f79, 0x0f7a, 0x0f7b, 0x0f7c, 0x0f7d, 0x0f7e, 0x0f7f,
88 14, 12, 12, 12, 12, 12, 12, 12,
89 12, 12, 12, 12, 12, 12, 12, 12,
90 12, 12, 12, 12, 12, 12, 12, 12,
91 12, 12, 12, 12, 12, 12, 12, 12,
92 12, 12, 12, 12, 12, 12, 12, 12,
93 12, 12, 12, 12, 12, 12, 12, 12,
94 12, 12, 12, 12, 12, 12, 12, 12,
95 12, 12, 12, 12, 12, 12, 12, 12,
96 12, 10, 10, 10, 10, 10, 10, 10,
97 10, 10, 10, 10, 10, 10, 10, 10,
98 10, 10, 10, 10, 10, 10, 10, 10,
99 10, 10, 10, 10, 10, 10, 10, 10,
100 10, 8, 8, 8, 8, 8, 8, 8,
101 8, 8, 8, 8, 8, 8, 8, 8,
102 8, 7, 7, 7, 7, 7, 7, 7,
103 7, 6, 6, 6, 6, 5, 5, 4,
104 2, 4, 5, 5, 6, 6, 6, 6,
105 7, 7, 7, 7, 7, 7, 7, 7,
106 8, 8, 8, 8, 8, 8, 8, 8,
107 8, 8, 8, 8, 8, 8, 8, 8,
108 10, 10, 10, 10, 10, 10, 10, 10,
109 10, 10, 10, 10, 10, 10, 10, 10,
110 10, 10, 10, 10, 10, 10, 10, 10,
111 10, 10, 10, 10, 10, 10, 10, 10,
112 12, 12, 12, 12, 12, 12, 12, 12,
113 12, 12, 12, 12, 12, 12, 12, 12,
114 12, 12, 12, 12, 12, 12, 12, 12,
115 12, 12, 12, 12, 12, 12, 12, 12,
116 12, 12, 12, 12, 12, 12, 12, 12,
117 12, 12, 12, 12, 12, 12, 12, 12,
118 12, 12, 12, 12, 12, 12, 12, 12,
119 12, 12, 12, 12, 12, 12, 12, 12,
123 0xfe7f, 0x3f00, 0x3f01, 0x3f02, 0x3f03, 0x3f04, 0x3f05, 0x3f06,
124 0x3f07, 0x3f08, 0x3f09, 0x3f0a, 0x3f0b, 0x3f0c, 0x3f0d, 0x3f0e,
125 0x3f0f, 0x3f10, 0x3f11, 0x3f12, 0x3f13, 0x3f14, 0x3f15, 0x3f16,
126 0x3f17, 0x3f18, 0x3f19, 0x3f1a, 0x3f1b, 0x3f1c, 0x3f1d, 0x3f1e,
127 0x3f1f, 0x3f20, 0x3f21, 0x3f22, 0x3f23, 0x3f24, 0x3f25, 0x3f26,
128 0x3f27, 0x3f28, 0x3f29, 0x3f2a, 0x3f2b, 0x3f2c, 0x3f2d, 0x3f2e,
129 0x3f2f, 0x3f30, 0x3f31, 0x3f32, 0x3f33, 0x3f34, 0x3f35, 0x3f36,
130 0x3f37, 0x3f38, 0x3f39, 0x3f3a, 0x3f3b, 0x3f3c, 0x3f3d, 0x3f3e,
131 0x3f3f, 0x0f80, 0x0f81, 0x0f82, 0x0f83, 0x0f84, 0x0f85, 0x0f86,
132 0x0f87, 0x0f88, 0x0f89, 0x0f8a, 0x0f8b, 0x0f8c, 0x0f8d, 0x0f8e,
133 0x0f8f, 0x0f90, 0x0f91, 0x0f92, 0x0f93, 0x0f94, 0x0f95, 0x0f96,
134 0x0f97, 0x0f98, 0x0f99, 0x0f9a, 0x0f9b, 0x0f9c, 0x0f9d, 0x0f9e,
135 0x0f9f, 0x03c0, 0x03c1, 0x03c2, 0x03c3, 0x03c4, 0x03c5, 0x03c6,
136 0x03c7, 0x03c8, 0x03c9, 0x03ca, 0x03cb, 0x03cc, 0x03cd, 0x03ce,
137 0x03cf, 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6,
138 0x00e7, 0x0030, 0x0031, 0x0032, 0x0033, 0x0008, 0x0009, 0x0002,
139 0x0000, 0x0003, 0x000a, 0x000b, 0x0034, 0x0035, 0x0036, 0x0037,
140 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
141 0x03d0, 0x03d1, 0x03d2, 0x03d3, 0x03d4, 0x03d5, 0x03d6, 0x03d7,
142 0x03d8, 0x03d9, 0x03da, 0x03db, 0x03dc, 0x03dd, 0x03de, 0x03df,
143 0x0fa0, 0x0fa1, 0x0fa2, 0x0fa3, 0x0fa4, 0x0fa5, 0x0fa6, 0x0fa7,
144 0x0fa8, 0x0fa9, 0x0faa, 0x0fab, 0x0fac, 0x0fad, 0x0fae, 0x0faf,
145 0x0fb0, 0x0fb1, 0x0fb2, 0x0fb3, 0x0fb4, 0x0fb5, 0x0fb6, 0x0fb7,
146 0x0fb8, 0x0fb9, 0x0fba, 0x0fbb, 0x0fbc, 0x0fbd, 0x0fbe, 0x0fbf,
147 0x3f40, 0x3f41, 0x3f42, 0x3f43, 0x3f44, 0x3f45, 0x3f46, 0x3f47,
148 0x3f48, 0x3f49, 0x3f4a, 0x3f4b, 0x3f4c, 0x3f4d, 0x3f4e, 0x3f4f,
149 0x3f50, 0x3f51, 0x3f52, 0x3f53, 0x3f54, 0x3f55, 0x3f56, 0x3f57,
150 0x3f58, 0x3f59, 0x3f5a, 0x3f5b, 0x3f5c, 0x3f5d, 0x3f5e, 0x3f5f,
151 0x3f60, 0x3f61, 0x3f62, 0x3f63, 0x3f64, 0x3f65, 0x3f66, 0x3f67,
152 0x3f68, 0x3f69, 0x3f6a, 0x3f6b, 0x3f6c, 0x3f6d, 0x3f6e, 0x3f6f,
153 0x3f70, 0x3f71, 0x3f72, 0x3f73, 0x3f74, 0x3f75, 0x3f76, 0x3f77,
154 0x3f78, 0x3f79, 0x3f7a, 0x3f7b, 0x3f7c, 0x3f7d, 0x3f7e, 0x3f7f,
158 16, 14, 14, 14, 14, 14, 14, 14,
159 14, 14, 14, 14, 14, 14, 14, 14,
160 14, 14, 14, 14, 14, 14, 14, 14,
161 14, 14, 14, 14, 14, 14, 14, 14,
162 14, 14, 14, 14, 14, 14, 14, 14,
163 14, 14, 14, 14, 14, 14, 14, 14,
164 14, 14, 14, 14, 14, 14, 14, 14,
165 14, 14, 14, 14, 14, 14, 14, 14,
166 14, 12, 12, 12, 12, 12, 12, 12,
167 12, 12, 12, 12, 12, 12, 12, 12,
168 12, 12, 12, 12, 12, 12, 12, 12,
169 12, 12, 12, 12, 12, 12, 12, 12,
170 12, 10, 10, 10, 10, 10, 10, 10,
171 10, 10, 10, 10, 10, 10, 10, 10,
172 10, 8, 8, 8, 8, 8, 8, 8,
173 8, 6, 6, 6, 6, 4, 4, 3,
174 2, 3, 4, 4, 6, 6, 6, 6,
175 8, 8, 8, 8, 8, 8, 8, 8,
176 10, 10, 10, 10, 10, 10, 10, 10,
177 10, 10, 10, 10, 10, 10, 10, 10,
178 12, 12, 12, 12, 12, 12, 12, 12,
179 12, 12, 12, 12, 12, 12, 12, 12,
180 12, 12, 12, 12, 12, 12, 12, 12,
181 12, 12, 12, 12, 12, 12, 12, 12,
182 14, 14, 14, 14, 14, 14, 14, 14,
183 14, 14, 14, 14, 14, 14, 14, 14,
184 14, 14, 14, 14, 14, 14, 14, 14,
185 14, 14, 14, 14, 14, 14, 14, 14,
186 14, 14, 14, 14, 14, 14, 14, 14,
187 14, 14, 14, 14, 14, 14, 14, 14,
188 14, 14, 14, 14, 14, 14, 14, 14,
189 14, 14, 14, 14, 14, 14, 14, 14,
207 }
else if (code == 0x7d) {
209 }
else if (code == 0x7e) {
214 }
else if (code == 0x7f) {
228 }
else if (code == 0x1fd) {
230 }
else if (code == 0x1fe) {
247 int mb_count, pb_frame, marker, mb_xy;
288 if (
show_bits(&s->
gb, 12) == 0 || (mb_xy && mb_xy < s->mb_num)) {
307 int seq, mb_pos, i, ret;
356 rpr_bits =
FFMIN((rpr_bits >> 1) + 1, 3);
374 "attempting to change resolution to %dx%d\n", new_w, new_h);
395 seq |= s->
time & ~0x7FFF;
396 if (seq - s->
time > 0x4000)
398 if (seq - s->
time < -0x4000)
401 if (seq != s->
time) {
412 "from seeking? skipping current b frame\n");
433 "num:%5d x:%2d y:%2d type:%d qscale:%2d rnd:%d\n",
448 int major_ver, minor_ver, micro_ver, ret;
480 s->
obmc = micro_ver == 2;
483 if (minor_ver >= 2) {
531 int buf_size,
int buf_size2)
535 int mb_count, mb_pos, left, start_mb_x, active_bits_size, ret;
537 active_bits_size = buf_size * 8;
555 if (mb_count > left) {
587 start_mb_x = s->
mb_x;
636 active_bits_size = buf_size2 * 8;
638 8 * buf_size, active_bits_size);
667 return active_bits_size;
682 int buf_size = avpkt->
size;
697 slice_count = (*buf++) + 1;
700 if (!slice_count || buf_size <= 8 * slice_count) {
706 slices_hdr = buf + 4;
707 buf += 8 * slice_count;
708 buf_size -= 8 * slice_count;
712 for (i = 0; i < slice_count; i++) {
716 if (offset >= buf_size)
719 if (i + 1 == slice_count)
720 size = buf_size - offset;
724 if (i + 2 >= slice_count)
725 size2 = buf_size - offset;
729 if (size <= 0 || size2 <= 0 ||
730 offset +
FFMAX(size, size2) > buf_size)
int rv10_first_dc_coded[3]
void ff_init_block_index(MpegEncContext *s)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
int coded_width
Bitstream width / height, may be different from width/height e.g.
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static const uint16_t rv_chrom_code[256]
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
void ff_er_frame_end(ERContext *s)
av_cold void ff_h263dsp_init(H263DSPContext *ctx)
int obmc
overlapped block motion compensation
void ff_print_debug_info(MpegEncContext *s, Picture *p)
Print debugging info for the given picture.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static int rv10_decode_picture_header(MpegEncContext *s)
int h263_aic
Advanded INTRA Coding (AIC)
int ff_h263_decode_mb(MpegEncContext *s, int16_t block[6][64])
av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
int64_t time
time of current frame
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
void ff_h263_decode_init_vlc(void)
#define INIT_VLC_STATIC(vlc, bits, a, b, c, d, e, f, g, static_size)
enum OutputFormat out_format
output format
#define FF_DEBUG_PICT_INFO
#define RV_GET_MICRO_VER(x)
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
int ff_rv_decode_dc(MpegEncContext *s, int n)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
static int get_bits_count(const GetBitContext *s)
int ff_h263_decode_mba(MpegEncContext *s)
uint16_t pp_time
time distance between the last 2 p,s,i frames
av_cold void ff_mpv_idct_init(MpegEncContext *s)
int mb_height
number of MBs horizontally & vertically
static void ff_update_block_index(MpegEncContext *s)
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
int slice_count
slice count
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int has_b_frames
Size of the frame reordering buffer in the decoder.
int last_dc[3]
last DC values for MPEG1
void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy, int status)
Add a slice.
#define CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
int unrestricted_mv
mv can point outside of the coded picture
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
void av_log(void *avcl, int level, const char *fmt,...)
#define RV_GET_MINOR_VER(x)
void ff_mpeg4_init_direct_mv(MpegEncContext *s)
const char * name
Name of the codec implementation.
int low_delay
no reordering needed / has no b-frames
void ff_mpv_common_end(MpegEncContext *s)
void ff_mpeg_flush(AVCodecContext *avctx)
int resync_mb_x
x position of last resync marker
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
void ff_h263_loop_filter(MpegEncContext *s)
enum AVPictureType pict_type
Picture type of the frame.
#define RV_GET_MAJOR_VER(x)
Picture * current_picture_ptr
pointer to the current picture
void ff_mpeg_er_frame_start(MpegEncContext *s)
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
static int rv10_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE(*table)[2], int bits, int max_depth)
Parse a vlc code.
static const uint8_t rv_chrom_bits[256]
const uint8_t ff_aic_dc_scale_table[32]
static av_cold int rv10_decode_end(AVCodecContext *avctx)
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
#define AVERROR_PATCHWELCOME
Not yet implemented in Libav, patches welcome.
#define MV_TYPE_16X16
1 vector for the whole mb
int first_slice_line
used in mpeg4 too to handle resync markers
static av_cold int rv10_decode_init(AVCodecContext *avctx)
#define AV_LOG_INFO
Standard information.
static const uint16_t rv_lum_code[256]
Libavcodec external API header.
void ff_h263_update_motion_val(MpegEncContext *s)
main external API structure.
static void close(AVCodecParserContext *s)
int height
picture size. must be a multiple of 16
const uint8_t ff_mpeg1_dc_scale_table[128]
#define SLICE_END
end marker found
static unsigned int get_bits1(GetBitContext *s)
static void skip_bits(GetBitContext *s, int n)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function called after decoding the header and before a frame is decoded.
int f_code
forward MV resolution
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
struct AVCodecContext * avctx
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
const uint8_t ff_h263_chroma_qscale_table[32]
static av_cold void flush(AVCodecContext *avctx)
Flush (reset) the frame ID after seeking.
Picture * last_picture_ptr
pointer to the previous picture.
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (h263)
static av_cold int init(AVCodecParserContext *s)
av_cold int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
static int rv20_decode_picture_header(RVDecContext *rv)
void ff_mpv_frame_end(MpegEncContext *s)
static const uint8_t rv_lum_bits[256]
int resync_mb_y
y position of last resync marker
int16_t(* block)[64]
points to one of the following blocks
VLC_TYPE(* table)[2]
code, bits
int * slice_offset
slice offsets in the frame in bytes
int frame_number
Frame counter, set by libavcodec.
int rv10_version
RV10 version: 0 or 3.
#define FRAME_SKIPPED
return value for header parsers if frame is not coded
int h263_long_vectors
use horrible h263v1 long vector mode
AVPixelFormat
Pixel format.
This structure stores compressed data.
uint16_t pb_time
time distance between the last b and p,s,i frame
static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf, int buf_size, int buf_size2)