FFmpeg
asvenc.c
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1 /*
2  * Copyright (c) 2003 Michael Niedermayer
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * ASUS V1/V2 encoder.
24  */
25 
26 #include "config_components.h"
27 
28 #include "libavutil/attributes.h"
29 #include "libavutil/mem.h"
30 
31 #include "aandcttab.h"
32 #include "asv.h"
33 #include "avcodec.h"
34 #include "codec_internal.h"
35 #include "dct.h"
36 #include "encode.h"
37 #include "fdctdsp.h"
38 #include "mpeg12data.h"
39 
40 static inline void asv1_put_level(PutBitContext *pb, int level)
41 {
42  unsigned int index = level + 3;
43 
44  if (index <= 6) {
46  } else {
47  put_bits(pb, 3, 0); /* Escape code */
48  put_sbits(pb, 8, level);
49  }
50 }
51 
52 static inline void asv2_put_level(ASV1Context *a, PutBitContext *pb, int level)
53 {
54  unsigned int index = level + 31;
55 
56  if (index <= 62) {
58  } else {
59  put_bits_le(pb, 5, 0); /* Escape code */
60  if (level < -128 || level > 127) {
61  av_log(a->avctx, AV_LOG_WARNING, "Clipping level %d, increase qscale\n", level);
63  }
64  put_bits_le(pb, 8, level & 0xFF);
65  }
66 }
67 
68 static inline void asv1_encode_block(ASV1Context *a, int16_t block[64])
69 {
70  int i;
71  int nc_count = 0;
72 
73  put_bits(&a->pb, 8, (block[0] + 32) >> 6);
74  block[0] = 0;
75 
76  for (i = 0; i < 10; i++) {
77  const int index = ff_asv_scantab[4 * i];
78  int ccp = 0;
79 
80  if ((block[index + 0] = (block[index + 0] *
81  a->q_intra_matrix[index + 0] + (1 << 15)) >> 16))
82  ccp |= 8;
83  if ((block[index + 8] = (block[index + 8] *
84  a->q_intra_matrix[index + 8] + (1 << 15)) >> 16))
85  ccp |= 4;
86  if ((block[index + 1] = (block[index + 1] *
87  a->q_intra_matrix[index + 1] + (1 << 15)) >> 16))
88  ccp |= 2;
89  if ((block[index + 9] = (block[index + 9] *
90  a->q_intra_matrix[index + 9] + (1 << 15)) >> 16))
91  ccp |= 1;
92 
93  if (ccp) {
94  for (; nc_count; nc_count--)
95  put_bits(&a->pb, 2, 2); /* Skip */
96 
97  put_bits(&a->pb, ff_asv_ccp_tab[ccp][1], ff_asv_ccp_tab[ccp][0]);
98 
99  if (ccp & 8)
100  asv1_put_level(&a->pb, block[index + 0]);
101  if (ccp & 4)
102  asv1_put_level(&a->pb, block[index + 8]);
103  if (ccp & 2)
104  asv1_put_level(&a->pb, block[index + 1]);
105  if (ccp & 1)
106  asv1_put_level(&a->pb, block[index + 9]);
107  } else {
108  nc_count++;
109  }
110  }
111  put_bits(&a->pb, 5, 0xF); /* End of block */
112 }
113 
114 static inline void asv2_encode_block(ASV1Context *a, int16_t block[64])
115 {
116  int i;
117  int count = 0;
118 
119  for (count = 63; count > 3; count--) {
120  const int index = ff_asv_scantab[count];
121  if ((block[index] * a->q_intra_matrix[index] + (1 << 15)) >> 16)
122  break;
123  }
124 
125  count >>= 2;
126 
127  put_bits_le(&a->pb, 4, count);
128  put_bits_le(&a->pb, 8, (block[0] + 32) >> 6);
129  block[0] = 0;
130 
131  for (i = 0; i <= count; i++) {
132  const int index = ff_asv_scantab[4 * i];
133  int ccp = 0;
134 
135  if ((block[index + 0] = (block[index + 0] *
136  a->q_intra_matrix[index + 0] + (1 << 15)) >> 16))
137  ccp |= 8;
138  if ((block[index + 8] = (block[index + 8] *
139  a->q_intra_matrix[index + 8] + (1 << 15)) >> 16))
140  ccp |= 4;
141  if ((block[index + 1] = (block[index + 1] *
142  a->q_intra_matrix[index + 1] + (1 << 15)) >> 16))
143  ccp |= 2;
144  if ((block[index + 9] = (block[index + 9] *
145  a->q_intra_matrix[index + 9] + (1 << 15)) >> 16))
146  ccp |= 1;
147 
148  av_assert2(i || ccp < 8);
149  if (i)
150  put_bits_le(&a->pb, ff_asv_ac_ccp_tab[ccp][1], ff_asv_ac_ccp_tab[ccp][0]);
151  else
152  put_bits_le(&a->pb, ff_asv_dc_ccp_tab[ccp][1], ff_asv_dc_ccp_tab[ccp][0]);
153 
154  if (ccp) {
155  if (ccp & 8)
156  asv2_put_level(a, &a->pb, block[index + 0]);
157  if (ccp & 4)
158  asv2_put_level(a, &a->pb, block[index + 8]);
159  if (ccp & 2)
160  asv2_put_level(a, &a->pb, block[index + 1]);
161  if (ccp & 1)
162  asv2_put_level(a, &a->pb, block[index + 9]);
163  }
164  }
165 }
166 
167 #define MAX_MB_SIZE (30 * 16 * 16 * 3 / 2 / 8)
168 
169 static inline int encode_mb(ASV1Context *a, int16_t block[6][64])
170 {
171  int i;
172 
173  av_assert0(put_bytes_left(&a->pb, 0) >= MAX_MB_SIZE);
174 
175  if (a->avctx->codec_id == AV_CODEC_ID_ASV1) {
176  for (i = 0; i < 6; i++)
178  } else {
179  for (i = 0; i < 6; i++) {
181  }
182  }
183  return 0;
184 }
185 
186 static inline void dct_get(ASV1Context *a, const AVFrame *frame,
187  int mb_x, int mb_y)
188 {
189  int16_t (*block)[64] = a->block;
190  int linesize = frame->linesize[0];
191  int i;
192 
193  const uint8_t *ptr_y = frame->data[0] + (mb_y * 16 * linesize) + mb_x * 16;
194  const uint8_t *ptr_cb = frame->data[1] + (mb_y * 8 * frame->linesize[1]) + mb_x * 8;
195  const uint8_t *ptr_cr = frame->data[2] + (mb_y * 8 * frame->linesize[2]) + mb_x * 8;
196 
197  a->pdsp.get_pixels(block[0], ptr_y, linesize);
198  a->pdsp.get_pixels(block[1], ptr_y + 8, linesize);
199  a->pdsp.get_pixels(block[2], ptr_y + 8 * linesize, linesize);
200  a->pdsp.get_pixels(block[3], ptr_y + 8 * linesize + 8, linesize);
201  for (i = 0; i < 4; i++)
202  a->fdsp.fdct(block[i]);
203 
204  if (!(a->avctx->flags & AV_CODEC_FLAG_GRAY)) {
205  a->pdsp.get_pixels(block[4], ptr_cb, frame->linesize[1]);
206  a->pdsp.get_pixels(block[5], ptr_cr, frame->linesize[2]);
207  for (i = 4; i < 6; i++)
208  a->fdsp.fdct(block[i]);
209  }
210 }
211 
213  const AVFrame *pict, int *got_packet)
214 {
215  ASV1Context *const a = avctx->priv_data;
216  int size, ret;
217  int mb_x, mb_y;
218 
219  if (pict->width % 16 || pict->height % 16) {
220  AVFrame *clone = av_frame_alloc();
221  int i;
222 
223  if (!clone)
224  return AVERROR(ENOMEM);
225  clone->format = pict->format;
226  clone->width = FFALIGN(pict->width, 16);
227  clone->height = FFALIGN(pict->height, 16);
228  ret = av_frame_get_buffer(clone, 0);
229  if (ret < 0) {
230  av_frame_free(&clone);
231  return ret;
232  }
233 
234  ret = av_frame_copy(clone, pict);
235  if (ret < 0) {
236  av_frame_free(&clone);
237  return ret;
238  }
239 
240  for (i = 0; i<3; i++) {
241  int x, y;
242  int w = AV_CEIL_RSHIFT(pict->width, !!i);
243  int h = AV_CEIL_RSHIFT(pict->height, !!i);
244  int w2 = AV_CEIL_RSHIFT(clone->width, !!i);
245  int h2 = AV_CEIL_RSHIFT(clone->height, !!i);
246  for (y=0; y<h; y++)
247  for (x=w; x<w2; x++)
248  clone->data[i][x + y*clone->linesize[i]] =
249  clone->data[i][w - 1 + y*clone->linesize[i]];
250  for (y=h; y<h2; y++)
251  for (x=0; x<w2; x++)
252  clone->data[i][x + y*clone->linesize[i]] =
253  clone->data[i][x + (h-1)*clone->linesize[i]];
254  }
255  ret = encode_frame(avctx, pkt, clone, got_packet);
256 
257  av_frame_free(&clone);
258  return ret;
259  }
260 
261  if ((ret = ff_alloc_packet(avctx, pkt, a->mb_height * a->mb_width * MAX_MB_SIZE +
263  return ret;
264 
265  init_put_bits(&a->pb, pkt->data, pkt->size);
266 
267  for (mb_y = 0; mb_y < a->mb_height2; mb_y++) {
268  for (mb_x = 0; mb_x < a->mb_width2; mb_x++) {
269  dct_get(a, pict, mb_x, mb_y);
270  encode_mb(a, a->block);
271  }
272  }
273 
274  if (a->mb_width2 != a->mb_width) {
275  mb_x = a->mb_width2;
276  for (mb_y = 0; mb_y < a->mb_height2; mb_y++) {
277  dct_get(a, pict, mb_x, mb_y);
278  encode_mb(a, a->block);
279  }
280  }
281 
282  if (a->mb_height2 != a->mb_height) {
283  mb_y = a->mb_height2;
284  for (mb_x = 0; mb_x < a->mb_width; mb_x++) {
285  dct_get(a, pict, mb_x, mb_y);
286  encode_mb(a, a->block);
287  }
288  }
289  emms_c();
290 
291  if (avctx->codec_id == AV_CODEC_ID_ASV1)
292  flush_put_bits(&a->pb);
293  else
294  flush_put_bits_le(&a->pb);
295  AV_WN32(put_bits_ptr(&a->pb), 0);
296  size = (put_bytes_output(&a->pb) + 3) / 4;
297 
298  if (avctx->codec_id == AV_CODEC_ID_ASV1) {
299  a->bbdsp.bswap_buf((uint32_t *) pkt->data,
300  (uint32_t *) pkt->data, size);
301  }
302 
303  pkt->size = size * 4;
304  *got_packet = 1;
305 
306  return 0;
307 }
308 
310 {
311  ASV1Context *const a = avctx->priv_data;
312  int i;
313  const int scale = avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2;
314 
315  ff_asv_common_init(avctx);
316  ff_fdctdsp_init(&a->fdsp, avctx);
317  ff_pixblockdsp_init(&a->pdsp, avctx);
318 
319  if (avctx->global_quality <= 0)
320  avctx->global_quality = 4 * FF_QUALITY_SCALE;
321 
322  a->inv_qscale = (32 * scale * FF_QUALITY_SCALE +
323  avctx->global_quality / 2) / avctx->global_quality;
324 
325  avctx->extradata = av_mallocz(8);
326  if (!avctx->extradata)
327  return AVERROR(ENOMEM);
328  avctx->extradata_size = 8;
329  ((uint32_t *) avctx->extradata)[0] = av_le2ne32(a->inv_qscale);
330  ((uint32_t *) avctx->extradata)[1] = av_le2ne32(AV_RL32("ASUS"));
331 
332  for (i = 0; i < 64; i++) {
333  if (a->fdsp.fdct == ff_fdct_ifast) {
334  int q = 32LL * scale * ff_mpeg1_default_intra_matrix[i] * ff_aanscales[i];
335  a->q_intra_matrix[i] = (((int64_t)a->inv_qscale << 30) + q / 2) / q;
336  } else {
337  int q = 32 * scale * ff_mpeg1_default_intra_matrix[i];
338  a->q_intra_matrix[i] = ((a->inv_qscale << 16) + q / 2) / q;
339  }
340  }
341 
342  return 0;
343 }
344 
345 #if CONFIG_ASV1_ENCODER
346 const FFCodec ff_asv1_encoder = {
347  .p.name = "asv1",
348  .p.long_name = NULL_IF_CONFIG_SMALL("ASUS V1"),
349  .p.type = AVMEDIA_TYPE_VIDEO,
350  .p.id = AV_CODEC_ID_ASV1,
351  .priv_data_size = sizeof(ASV1Context),
352  .init = encode_init,
354  .p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
355  AV_PIX_FMT_NONE },
356 };
357 #endif
358 
359 #if CONFIG_ASV2_ENCODER
360 const FFCodec ff_asv2_encoder = {
361  .p.name = "asv2",
362  .p.long_name = NULL_IF_CONFIG_SMALL("ASUS V2"),
363  .p.type = AVMEDIA_TYPE_VIDEO,
364  .p.id = AV_CODEC_ID_ASV2,
365  .priv_data_size = sizeof(ASV1Context),
366  .init = encode_init,
368  .p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
369  AV_PIX_FMT_NONE },
370 };
371 #endif
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
ff_asv_dc_ccp_tab
const uint8_t ff_asv_dc_ccp_tab[8][2]
Definition: asv.c:55
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
level
uint8_t level
Definition: svq3.c:206
asv1_put_level
static void asv1_put_level(PutBitContext *pb, int level)
Definition: asvenc.c:40
ff_asv_level_tab
const uint8_t ff_asv_level_tab[7][2]
Definition: asv.c:51
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
av_frame_get_buffer
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition: frame.c:259
put_bytes_output
static int put_bytes_output(const PutBitContext *s)
Definition: put_bits.h:89
av_clip_int8
#define av_clip_int8
Definition: common.h:104
put_sbits
static void put_sbits(PutBitContext *pb, int n, int32_t value)
Definition: put_bits.h:281
init_put_bits
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:62
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
put_bits
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:221
AVFrame::width
int width
Definition: frame.h:397
w
uint8_t w
Definition: llviddspenc.c:38
FF_QUALITY_SCALE
#define FF_QUALITY_SCALE
Definition: avutil.h:230
AVPacket::data
uint8_t * data
Definition: packet.h:374
encode.h
FFCodec
Definition: codec_internal.h:118
ff_pixblockdsp_init
av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx)
Definition: pixblockdsp.c:81
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:346
init
static int init
Definition: av_tx.c:47
ff_asv2_level_tab
const uint16_t ff_asv2_level_tab[63][2]
Definition: asv.c:67
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:122
ff_asv_scantab
const uint8_t ff_asv_scantab[64]
Definition: asv.c:32
scale
static av_always_inline float scale(float x, float s)
Definition: vf_v360.c:1389
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition: codec_internal.h:269
put_bytes_left
static int put_bytes_left(const PutBitContext *s, int round_up)
Definition: put_bits.h:135
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:104
encode_init
static av_cold int encode_init(AVCodecContext *avctx)
Definition: asvenc.c:309
pkt
AVPacket * pkt
Definition: movenc.c:59
ff_asv2_encoder
const FFCodec ff_asv2_encoder
av_cold
#define av_cold
Definition: attributes.h:90
dct.h
ff_fdctdsp_init
av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx)
Definition: fdctdsp.c:26
ASV1Context
Definition: asv.h:42
ff_asv1_encoder
const FFCodec ff_asv1_encoder
AVCodecContext::extradata_size
int extradata_size
Definition: avcodec.h:500
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:464
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
asv.h
AV_INPUT_BUFFER_MIN_SIZE
#define AV_INPUT_BUFFER_MIN_SIZE
Definition: avcodec.h:191
encode_mb
static int encode_mb(ASV1Context *a, int16_t block[6][64])
Definition: asvenc.c:169
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
PutBitContext
Definition: put_bits.h:50
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition: avcodec.h:408
ff_asv_ac_ccp_tab
const uint8_t ff_asv_ac_ccp_tab[16][2]
Definition: asv.c:60
aandcttab.h
ff_fdct_ifast
void ff_fdct_ifast(int16_t *data)
Definition: jfdctfst.c:207
flush_put_bits_le
static void flush_put_bits_le(PutBitContext *s)
Definition: put_bits.h:164
index
int index
Definition: gxfenc.c:89
dct_get
static void dct_get(ASV1Context *a, const AVFrame *frame, int mb_x, int mb_y)
Definition: asvenc.c:186
AV_CODEC_FLAG_GRAY
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:259
AVPacket::size
int size
Definition: packet.h:375
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
codec_internal.h
AV_WN32
#define AV_WN32(p, v)
Definition: intreadwrite.h:376
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:771
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
size
int size
Definition: twinvq_data.h:10344
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:412
ff_mpeg1_default_intra_matrix
const uint16_t ff_mpeg1_default_intra_matrix[256]
Definition: mpeg12data.c:30
ff_asv_common_init
av_cold void ff_asv_common_init(AVCodecContext *avctx)
Definition: asv.c:89
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
attributes.h
AV_CODEC_ID_ASV1
@ AV_CODEC_ID_ASV1
Definition: codec_id.h:81
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:499
AV_CODEC_ID_ASV2
@ AV_CODEC_ID_ASV2
Definition: codec_id.h:82
av_le2ne32
#define av_le2ne32(x)
Definition: bswap.h:96
fdctdsp.h
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:264
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:211
encode_frame
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
Definition: asvenc.c:212
avcodec.h
ret
ret
Definition: filter_design.txt:187
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
mpeg12data.h
AVCodecContext
main external API structure.
Definition: avcodec.h:398
AVFrame::height
int height
Definition: frame.h:397
put_bits_ptr
static uint8_t * put_bits_ptr(PutBitContext *s)
Return the pointer to the byte where the bitstream writer will put the next bit.
Definition: put_bits.h:370
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
asv2_encode_block
static void asv2_encode_block(ASV1Context *a, int16_t block[64])
Definition: asvenc.c:114
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
mem.h
flush_put_bits
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:143
ff_asv_ccp_tab
const uint8_t ff_asv_ccp_tab[17][2]
Definition: asv.c:43
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
asv2_put_level
static void asv2_put_level(ASV1Context *a, PutBitContext *pb, int level)
Definition: asvenc.c:52
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:425
AVPacket
This structure stores compressed data.
Definition: packet.h:351
MAX_MB_SIZE
#define MAX_MB_SIZE
Definition: asvenc.c:167
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:370
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
put_bits_le
static void put_bits_le(PutBitContext *s, int n, BitBuf value)
Definition: put_bits.h:253
h
h
Definition: vp9dsp_template.c:2038
ff_alloc_packet
int ff_alloc_packet(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and allocate data.
Definition: encode.c:35
asv1_encode_block
static void asv1_encode_block(ASV1Context *a, int16_t block[64])
Definition: asvenc.c:68
ff_aanscales
const uint16_t ff_aanscales[64]
Definition: aandcttab.c:26