mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
4243da4ff4
This is possible, because every given FFCodec has to implement exactly one of these. Doing so decreases sizeof(FFCodec) and therefore decreases the size of the binary. Notice that in case of position-independent code the decrease is in .data.rel.ro, so that this translates to decreased memory consumption. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
381 lines
14 KiB
C
381 lines
14 KiB
C
/*
|
|
* Brooktree ProSumer Video decoder
|
|
* Copyright (c) 2018 Paul B Mahol
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "libavutil/mem.h"
|
|
|
|
#include "avcodec.h"
|
|
#include "bytestream.h"
|
|
#include "codec_internal.h"
|
|
#include "internal.h"
|
|
|
|
typedef struct ProSumerContext {
|
|
GetByteContext gb;
|
|
PutByteContext pb;
|
|
|
|
unsigned stride;
|
|
unsigned size;
|
|
uint32_t lut[0x2000];
|
|
uint8_t *initial_line;
|
|
uint8_t *decbuffer;
|
|
} ProSumerContext;
|
|
|
|
#define PAIR(high, low) (((uint64_t)(high) << 32) | low)
|
|
|
|
static int decompress(GetByteContext *gb, int size, PutByteContext *pb, const uint32_t *lut)
|
|
{
|
|
int pos, idx, cnt, fill;
|
|
uint32_t a, b, c;
|
|
|
|
bytestream2_skip(gb, 32);
|
|
cnt = 4;
|
|
a = bytestream2_get_le32(gb);
|
|
idx = a >> 20;
|
|
b = lut[2 * idx];
|
|
|
|
while (1) {
|
|
if (bytestream2_get_bytes_left_p(pb) <= 0 || bytestream2_get_eof(pb))
|
|
return 0;
|
|
if ((b & 0xFF00u) != 0x8000u || (b & 0xFFu)) {
|
|
if ((b & 0xFF00u) != 0x8000u) {
|
|
bytestream2_put_le16(pb, b);
|
|
} else {
|
|
idx = 0;
|
|
for (int i = 0; i < (b & 0xFFu); i++)
|
|
bytestream2_put_le32(pb, 0);
|
|
}
|
|
c = b >> 16;
|
|
if (c & 0xFF00u) {
|
|
fill = lut[2 * idx + 1];
|
|
if ((c & 0xF000u) == 0x1000) {
|
|
bytestream2_put_le16(pb, fill);
|
|
} else {
|
|
bytestream2_put_le32(pb, fill);
|
|
}
|
|
c = (c >> 8) & 0x0Fu;
|
|
}
|
|
while (c) {
|
|
a <<= 4;
|
|
cnt--;
|
|
if (!cnt) {
|
|
if (bytestream2_get_bytes_left(gb) <= 0) {
|
|
if (!a)
|
|
return 0;
|
|
} else {
|
|
pos = bytestream2_tell(gb);
|
|
bytestream2_seek(gb, pos ^ 2, SEEK_SET);
|
|
AV_WN16(&a, bytestream2_peek_le16(gb));
|
|
bytestream2_seek(gb, pos + 2, SEEK_SET);
|
|
}
|
|
cnt = 4;
|
|
}
|
|
c--;
|
|
}
|
|
idx = a >> 20;
|
|
b = lut[2 * idx];
|
|
if (!b)
|
|
return AVERROR_INVALIDDATA;
|
|
continue;
|
|
}
|
|
idx = 2;
|
|
while (idx) {
|
|
a <<= 4;
|
|
cnt--;
|
|
if (cnt) {
|
|
idx--;
|
|
continue;
|
|
}
|
|
if (bytestream2_get_bytes_left(gb) <= 0) {
|
|
if (a) {
|
|
cnt = 4;
|
|
idx--;
|
|
continue;
|
|
}
|
|
return 0;
|
|
}
|
|
pos = bytestream2_tell(gb);
|
|
bytestream2_seek(gb, pos ^ 2, SEEK_SET);
|
|
AV_WN16(&a, bytestream2_peek_le16(gb));
|
|
bytestream2_seek(gb, pos + 2, SEEK_SET);
|
|
cnt = 4;
|
|
idx--;
|
|
}
|
|
b = PAIR(4, a) >> 16;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vertical_predict(uint32_t *dst, int offset, const uint32_t *src, int stride, int height)
|
|
{
|
|
dst += offset >> 2;
|
|
|
|
for (int i = 0; i < height; i++) {
|
|
for (int j = 0; j < stride >> 2; j++) {
|
|
dst[j] = (((src[j] >> 3) + (0x3F3F3F3F & dst[j])) << 3) & 0xFCFCFCFC;
|
|
}
|
|
|
|
dst += stride >> 2;
|
|
src += stride >> 2;
|
|
}
|
|
}
|
|
|
|
static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
|
|
int *got_frame, AVPacket *avpkt)
|
|
{
|
|
ProSumerContext *s = avctx->priv_data;
|
|
int ret;
|
|
|
|
if (avpkt->size <= 32)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
bytestream2_init(&s->gb, avpkt->data, avpkt->size);
|
|
bytestream2_init_writer(&s->pb, s->decbuffer, s->size);
|
|
ret = decompress(&s->gb, AV_RL32(avpkt->data + 28) >> 1, &s->pb, s->lut);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (bytestream2_get_bytes_left_p(&s->pb) > s->size * (int64_t)avctx->discard_damaged_percentage / 100)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
av_assert0(s->size >= bytestream2_get_bytes_left_p(&s->pb));
|
|
memset(s->decbuffer + bytestream2_tell_p(&s->pb), 0, bytestream2_get_bytes_left_p(&s->pb));
|
|
|
|
vertical_predict((uint32_t *)s->decbuffer, 0, (uint32_t *)s->initial_line, s->stride, 1);
|
|
vertical_predict((uint32_t *)s->decbuffer, s->stride, (uint32_t *)s->decbuffer, s->stride, avctx->height - 1);
|
|
|
|
ret = ff_get_buffer(avctx, frame, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (int i = avctx->height - 1; i >= 0 ; i--) {
|
|
uint8_t *y = &frame->data[0][i * frame->linesize[0]];
|
|
uint8_t *u = &frame->data[1][i * frame->linesize[1]];
|
|
uint8_t *v = &frame->data[2][i * frame->linesize[2]];
|
|
const uint8_t *src = s->decbuffer + (avctx->height - 1 - i) * s->stride;
|
|
|
|
for (int j = 0; j < avctx->width; j += 8) {
|
|
*(u++) = *src++;
|
|
*(y++) = *src++;
|
|
*(v++) = *src++;
|
|
*(y++) = *src++;
|
|
|
|
*(u++) = *src++;
|
|
*(y++) = *src++;
|
|
*(v++) = *src++;
|
|
*(y++) = *src++;
|
|
|
|
*(y++) = *src++;
|
|
*(y++) = *src++;
|
|
*(y++) = *src++;
|
|
*(y++) = *src++;
|
|
}
|
|
}
|
|
|
|
frame->pict_type = AV_PICTURE_TYPE_I;
|
|
frame->key_frame = 1;
|
|
*got_frame = 1;
|
|
|
|
return avpkt->size;
|
|
}
|
|
|
|
#define TB(i) (1 + ((i) > 10) + ((i) > 49))
|
|
static const uint16_t table[] = {
|
|
0x0000, 0x100, 0x0101, 0x200, 0x0202, 0x300, 0xFFFF, 0x400, 0xFEFE, 0x500,
|
|
0x0001, 0x700, 0x0100, 0x800, 0x00FF, 0x900, 0xFF00, 0xA00, 0x8001, 0x600,
|
|
0x8002, 0xB00, 0xFCFC, 0x010, 0x0404, 0x030, 0x0002, 0xD30, 0xFEFC, 0x020,
|
|
0xFCFE, 0x040, 0xFEFF, 0xD20, 0x0808, 0x060, 0xFFFE, 0x050, 0x0402, 0xC00,
|
|
0x0204, 0xC10, 0xF8F8, 0xC30, 0x0201, 0xC40, 0x0102, 0xC60, 0x0804, 0xF30,
|
|
0x0408, 0xE00, 0xF8FC, 0xE10, 0xFCF8, 0xC70, 0x00FE, 0xD00, 0xFE00, 0xD40,
|
|
0xFF01, 0xD50, 0x01FF, 0xD60, 0x0200, 0xD70, 0xFCFF, 0xE20, 0x0104, 0xE30,
|
|
0xF0F0, 0xE50, 0x0401, 0xE70, 0x02FE, 0xF00, 0xFE02, 0xF10, 0xFE01, 0xF20,
|
|
0x01FE, 0xF40, 0xFF02, 0xF50, 0x02FF, 0xF60, 0x8003, 0xC20, 0x8004, 0x070,
|
|
0x8005, 0xD10, 0x8006, 0xC50, 0x8007, 0xE60, 0x8008, 0xE40, 0x8009, 0xF70,
|
|
0xFC02, 0x080, 0xFE04, 0x081, 0xFC00, 0x082, 0x02FC, 0x083, 0x1010, 0x084,
|
|
0x00FC, 0x085, 0x0004, 0x086, 0x0400, 0x087, 0xFFFC, 0x088, 0x1008, 0x089,
|
|
0x0810, 0x08A, 0x0802, 0x08B, 0x0208, 0x08C, 0xFEF8, 0x08D, 0xFC01, 0x08E,
|
|
0x04FF, 0x08F, 0xF8FE, 0x090, 0xFC04, 0x091, 0x04FC, 0x092, 0xFF04, 0x093,
|
|
0x01FC, 0x094, 0xF0F8, 0x095, 0xF8F0, 0x096, 0x04FE, 0x097, 0xF0FC, 0x098,
|
|
0x0008, 0x099, 0x08FE, 0x09A, 0x01F8, 0x09B, 0x0800, 0x09C, 0x08FC, 0x09D,
|
|
0xFE08, 0x09E, 0xFC08, 0x09F, 0xF800, 0x0A0, 0x0108, 0x0A1, 0xF802, 0x0A2,
|
|
0x0801, 0x0A3, 0x00F8, 0x0A4, 0xF804, 0x0A5, 0xF8FF, 0x0A6, 0xFFF8, 0x0A7,
|
|
0x04F8, 0x0A8, 0x02F8, 0x0A9, 0x1004, 0x0AA, 0x08F8, 0x0AB, 0xF808, 0x0AC,
|
|
0x0410, 0x0AD, 0xFF08, 0x0AE, 0x08FF, 0x0AF, 0xFCF0, 0x0B0, 0xF801, 0x0B1,
|
|
0xE0F0, 0x0B2, 0xF3F3, 0x0B3, 0xF0E0, 0x0B4, 0xFAFA, 0x0B5, 0xF7F7, 0x0B6,
|
|
0xFEF0, 0x0B7, 0xF0FE, 0x0B8, 0xE9E9, 0x0B9, 0xF9F9, 0x0BA, 0x2020, 0x0BB,
|
|
0xE0E0, 0x0BC, 0x02F0, 0x0BD, 0x04F0, 0x0BE, 0x2010, 0x0BF, 0xECEC, 0x0C0,
|
|
0xEFEF, 0x0C1, 0x1020, 0x0C2, 0xF5F5, 0x0C3, 0xF4F4, 0x0C4, 0xEDED, 0x0C5,
|
|
0xEAEA, 0x0C6, 0xFBFB, 0x0C7, 0x1002, 0x0C8, 0xF2F2, 0x0C9, 0xF6F6, 0x0CA,
|
|
0xF1F1, 0x0CB, 0xFDFD, 0x0CC, 0x0210, 0x0CD, 0x10FF, 0x0CE, 0xFDFE, 0x0CF,
|
|
0x10F8, 0x0D0, 0x1000, 0x0D1, 0xF001, 0x0D2, 0x1001, 0x0D3, 0x0010, 0x0D4,
|
|
0x10FE, 0x0D5, 0xEBEB, 0x0D6, 0xFE10, 0x0D7, 0x0110, 0x0D8, 0xF000, 0x0D9,
|
|
0x08F0, 0x0DA, 0x01F0, 0x0DB, 0x0303, 0x0DC, 0x00F0, 0x0DD, 0xF002, 0x0DE,
|
|
0x10FC, 0x0DF, 0xFC10, 0x0E0, 0xF0FF, 0x0E1, 0xEEEE, 0x0E2, 0xF004, 0x0E3,
|
|
0xFFF0, 0x0E4, 0xF7F8, 0x0E5, 0xF3F2, 0x0E6, 0xF9FA, 0x0E7, 0x0820, 0x0E8,
|
|
0x0302, 0x0E9, 0xE0F8, 0x0EA, 0x0505, 0x0EB, 0x2008, 0x0EC, 0xE8E8, 0x0ED,
|
|
0x0403, 0x0EE, 0xFBFC, 0x0EF, 0xFCFD, 0x0F0, 0xFBFA, 0x0F1, 0x0203, 0x0F2,
|
|
0xFCFB, 0x0F3, 0x0304, 0x0F4, 0xF810, 0x0F5, 0xFF10, 0x0F6, 0xF008, 0x0F7,
|
|
0xFEFD, 0x0F8, 0xF7F6, 0x0F9, 0xF2F1, 0x0FA, 0xF3F4, 0x0FB, 0xEDEC, 0x0FC,
|
|
0xF4F1, 0x0FD, 0xF5F6, 0x0FE, 0xF0F1, 0x0FF, 0xF9F8, 0xC80, 0x10F0, 0xC81,
|
|
0xF2F3, 0xC82, 0xF7F9, 0xC83, 0xF6F5, 0xC84, 0xF0EF, 0xC85, 0xF4F5, 0xC86,
|
|
0xF6F7, 0xC87, 0xFAF9, 0xC88, 0x0405, 0xC89, 0xF8F9, 0xC8A, 0xFAFB, 0xC8B,
|
|
0xF1F0, 0xC8C, 0xF4F3, 0xC8D, 0xF1F2, 0xC8E, 0xF8E0, 0xC8F, 0xF8F7, 0xC90,
|
|
0xFDFC, 0xC91, 0xF8FA, 0xC92, 0xFAF6, 0xC93, 0xEEEF, 0xC94, 0xF5F7, 0xC95,
|
|
0xFDFB, 0xC96, 0xF4F6, 0xC97, 0xFCFA, 0xC98, 0xECED, 0xC99, 0xF0F3, 0xC9A,
|
|
0xF3F1, 0xC9B, 0xECEB, 0xC9C, 0xEDEE, 0xC9D, 0xF9F7, 0xC9E, 0x0420, 0xC9F,
|
|
0xEBEA, 0xCA0, 0xF0F4, 0xCA1, 0xF3F5, 0xCA2, 0xFAF7, 0xCA3, 0x0301, 0xCA4,
|
|
0xF3F7, 0xCA5, 0xF7F3, 0xCA6, 0xEFF0, 0xCA7, 0xF9F6, 0xCA8, 0xEFEE, 0xCA9,
|
|
0xF4F7, 0xCAA, 0x0504, 0xCAB, 0xF5F4, 0xCAC, 0xF1F3, 0xCAD, 0xEBEE, 0xCAE,
|
|
0xF2F5, 0xCAF, 0xF3EF, 0xCB0, 0xF5F1, 0xCB1, 0xF9F3, 0xCB2, 0xEDF0, 0xCB3,
|
|
0xEEF1, 0xCB4, 0xF6F9, 0xCB5, 0xF8FB, 0xCB6, 0xF010, 0xCB7, 0xF2F6, 0xCB8,
|
|
0xF4ED, 0xCB9, 0xF7FB, 0xCBA, 0xF8F3, 0xCBB, 0xEDEB, 0xCBC, 0xF0F2, 0xCBD,
|
|
0xF2F9, 0xCBE, 0xF8F1, 0xCBF, 0xFAFC, 0xCC0, 0xFBF8, 0xCC1, 0xF6F0, 0xCC2,
|
|
0xFAF8, 0xCC3, 0x0103, 0xCC4, 0xF3F6, 0xCC5, 0xF4F9, 0xCC6, 0xF7F2, 0xCC7,
|
|
0x2004, 0xCC8, 0xF2F0, 0xCC9, 0xF4F2, 0xCCA, 0xEEED, 0xCCB, 0xFCE0, 0xCCC,
|
|
0xEAE9, 0xCCD, 0xEAEB, 0xCCE, 0xF6F4, 0xCCF, 0xFFFD, 0xCD0, 0xE9EA, 0xCD1,
|
|
0xF1F4, 0xCD2, 0xF6EF, 0xCD3, 0xF6F8, 0xCD4, 0xF8F6, 0xCD5, 0xEFF2, 0xCD6,
|
|
0xEFF1, 0xCD7, 0xF7F1, 0xCD8, 0xFBFD, 0xCD9, 0xFEF6, 0xCDA, 0xFFF7, 0xCDB,
|
|
0x0605, 0xCDC, 0xF0F5, 0xCDD, 0xF0FA, 0xCDE, 0xF1F9, 0xCDF, 0xF2FC, 0xCE0,
|
|
0xF7EE, 0xCE1, 0xF7F5, 0xCE2, 0xF9FC, 0xCE3, 0xFAF5, 0xCE4, 0xFBF1, 0xCE5,
|
|
0xF1EF, 0xCE6, 0xF1FA, 0xCE7, 0xF4F8, 0xCE8, 0xF7F0, 0xCE9, 0xF7F4, 0xCEA,
|
|
0xF7FC, 0xCEB, 0xF9FB, 0xCEC, 0xFAF1, 0xCED, 0xFBF9, 0xCEE, 0xFDFF, 0xCEF,
|
|
0xE0FC, 0xCF0, 0xEBEC, 0xCF1, 0xEDEF, 0xCF2, 0xEFED, 0xCF3, 0xF1F6, 0xCF4,
|
|
0xF2F7, 0xCF5, 0xF3EE, 0xCF6, 0xF3F8, 0xCF7, 0xF5F2, 0xCF8, 0xF8F2, 0xCF9,
|
|
0xF9F1, 0xCFA, 0xF9F2, 0xCFB, 0xFBEF, 0xCFC, 0x00FD, 0xCFD, 0xECEE, 0xCFE,
|
|
0xF2EF, 0xCFF, 0xF2F8, 0xD80, 0xF5F0, 0xD81, 0xF6F2, 0xD82, 0xFCF7, 0xD83,
|
|
0xFCF9, 0xD84, 0x0506, 0xD85, 0xEEEC, 0xD86, 0xF0F6, 0xD87, 0xF2F4, 0xD88,
|
|
0xF6F1, 0xD89, 0xF8F5, 0xD8A, 0xF9F4, 0xD8B, 0xFBF7, 0xD8C, 0x0503, 0xD8D,
|
|
0xEFEC, 0xD8E, 0xF3F0, 0xD8F, 0xF4F0, 0xD90, 0xF5F3, 0xD91, 0xF6F3, 0xD92,
|
|
0xF7FA, 0xD93, 0x800A, 0xD94, 0x800B, 0xD95, 0x800C, 0xD96, 0x800D, 0xD97,
|
|
0x800E, 0xD98, 0x800F, 0xD99, 0x8010, 0xD9A, 0x8011, 0xD9B, 0x8012, 0xD9C,
|
|
0x8013, 0xD9D, 0x8014, 0xD9E, 0x8015, 0xD9F, 0x8016, 0xDA0, 0x8017, 0xDA1,
|
|
0x8018, 0xDA2, 0x8019, 0xDA3, 0x801A, 0xDA4, 0x801B, 0xDA5, 0x801C, 0xDA6,
|
|
0x801D, 0xDA7, 0x801E, 0xDA8, 0x801F, 0xDA9, 0x8020, 0xDAA, 0x8021, 0xDAB,
|
|
0x8022, 0xDAC, 0x8023, 0xDAD, 0x8024, 0xDAE, 0x8025, 0xDAF, 0x8026, 0xDB0,
|
|
0x8027, 0xDB1, 0x8028, 0xDB2, 0x8029, 0xDB3, 0x802A, 0xDB4, 0x802B, 0xDB5,
|
|
0x802C, 0xDB6, 0x802D, 0xDB7, 0x802E, 0xDB8, 0x802F, 0xDB9, 0x80FF, 0xDBA,
|
|
};
|
|
|
|
static void fill_elements(uint32_t idx, uint32_t shift, uint32_t *e0, uint32_t *e1)
|
|
{
|
|
uint32_t b, h = idx << (32 - shift);
|
|
|
|
for (int j = 0; j < 2; j++) {
|
|
for (int i = 0; i < 43; i++) {
|
|
b = 4 * TB(i);
|
|
if (shift >= b && ((h & (0xFFF00000u << (12 - b))) >> 20) == table[2 * i + 1]) {
|
|
if (table[2 * i] >> 8 == 0x80u) {
|
|
return;
|
|
} else {
|
|
*e0 = (*e0 & 0xFFFFFFu) | (((12 + b - shift) | (0x40u<<j)) << 22);
|
|
if (j == 0) {
|
|
*e1 = table[2 * i];
|
|
shift -= b;
|
|
h <<= b;
|
|
} else {
|
|
*e1 |= (unsigned)table[2 * i] << 16;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void fill_lut(uint32_t *lut)
|
|
{
|
|
for (int i = 1; i < FF_ARRAY_ELEMS(table); i += 2) {
|
|
uint32_t a = table[i];
|
|
uint32_t b = TB(i>>1);
|
|
uint32_t c, d;
|
|
|
|
c = (b << 16) | table[i-1];
|
|
d = 4 * (3 - b);
|
|
if (d <= 0) {
|
|
lut[2 * a] = c;
|
|
lut[2 * a + 1] = 0;
|
|
} else {
|
|
for (int j = 0; j < 1 << d; j++) {
|
|
uint32_t f = 0xFFFFFFFFu;
|
|
c &= 0xFFFFFFu;
|
|
if ((c & 0xFF00u) != 0x8000u)
|
|
fill_elements(j, d, &c, &f);
|
|
lut[2 * a + 2 * j] = c;
|
|
lut[2 * a + 2 * j + 1] = f;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < 32; i += 2) {
|
|
lut[i ] = 0x68000;
|
|
lut[i+1] = 0;
|
|
}
|
|
}
|
|
|
|
static av_cold int decode_init(AVCodecContext *avctx)
|
|
{
|
|
ProSumerContext *s = avctx->priv_data;
|
|
|
|
s->stride = 3LL * FFALIGN(avctx->width, 8) >> 1;
|
|
s->size = avctx->height * s->stride;
|
|
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV411P;
|
|
|
|
s->initial_line = av_malloc(s->stride);
|
|
s->decbuffer = av_malloc(s->size);
|
|
if (!s->initial_line || !s->decbuffer)
|
|
return AVERROR(ENOMEM);
|
|
memset(s->initial_line, 0x80u, s->stride);
|
|
|
|
fill_lut(s->lut);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int decode_close(AVCodecContext *avctx)
|
|
{
|
|
ProSumerContext *s = avctx->priv_data;
|
|
|
|
av_freep(&s->initial_line);
|
|
av_freep(&s->decbuffer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
const FFCodec ff_prosumer_decoder = {
|
|
.p.name = "prosumer",
|
|
.p.long_name = NULL_IF_CONFIG_SMALL("Brooktree ProSumer Video"),
|
|
.p.type = AVMEDIA_TYPE_VIDEO,
|
|
.p.id = AV_CODEC_ID_PROSUMER,
|
|
.priv_data_size = sizeof(ProSumerContext),
|
|
.init = decode_init,
|
|
FF_CODEC_DECODE_CB(decode_frame),
|
|
.close = decode_close,
|
|
.p.capabilities = AV_CODEC_CAP_DR1,
|
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
|
|
FF_CODEC_CAP_INIT_CLEANUP,
|
|
};
|