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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-12 19:18:44 +02:00
FFmpeg/libavcodec/escape130.c
Michael Niedermayer 80e9e63c94 Merge commit '759001c534287a96dc96d1e274665feb7059145d'
* commit '759001c534287a96dc96d1e274665feb7059145d':
  lavc decoders: work with refcounted frames.

Anton Khirnov (1):
      lavc decoders: work with refcounted frames.

Clément Bœsch (47):
      lavc/ansi: reset file
      lavc/ansi: re-do refcounted frame changes from Anton
      fraps: reset file
      lavc/fraps: switch to refcounted frames
      gifdec: reset file
      lavc/gifdec: switch to refcounted frames
      dsicinav: resolve conflicts
      smc: resolve conflicts
      zmbv: resolve conflicts
      rpza: resolve conflicts
      vble: resolve conflicts
      xxan: resolve conflicts
      targa: resolve conflicts
      vmnc: resolve conflicts
      utvideodec: resolve conflicts
      tscc: resolve conflicts
      ulti: resolve conflicts
      ffv1dec: resolve conflicts
      dnxhddec: resolve conflicts
      v210dec: resolve conflicts
      vp3: resolve conflicts
      vcr1: resolve conflicts
      v210x: resolve conflicts
      wavpack: resolve conflicts
      pngdec: fix compilation
      roqvideodec: resolve conflicts
      pictordec: resolve conflicts
      mdec: resolve conflicts
      tiertexseqv: resolve conflicts
      smacker: resolve conflicts
      vb: resolve conflicts
      vqavideo: resolve conflicts
      xl: resolve conflicts
      tmv: resolve conflicts
      vmdav: resolve conflicts
      truemotion1: resolve conflicts
      truemotion2: resolve conflicts
      lcldec: fix compilation
      libcelt_dec: fix compilation
      qdrw: fix compilation
      r210dec: fix compilation
      rl2: fix compilation
      wnv1: fix compilation
      yop: fix compilation
      tiff: resolve conflicts
      interplayvideo: fix compilation
      qpeg: resolve conflicts (FIXME/TESTME).

Hendrik Leppkes (33):
      012v: convert to refcounted frames
      8bps: fix compilation
      8svx: resolve conflicts
      4xm: resolve conflicts
      aasc: resolve conflicts
      bfi: fix compilation
      aura: fix compilation
      alsdec: resolve conflicts
      avrndec: convert to refcounted frames
      avuidec: convert to refcounted frames
      bintext: convert to refcounted frames
      cavsdec: resolve conflicts
      brender_pix: convert to refcounted frames
      cinepak: resolve conflicts
      cinepak: avoid using AVFrame struct directly in private context
      cljr: fix compilation
      cpia: convert to refcounted frames
      cscd: resolve conflicts
      iff: resolve conflicts and do proper conversion to refcounted frames
      4xm: fix reference frame handling
      cyuv: fix compilation
      dxa: fix compilation
      eacmv: fix compilation
      eamad: fix compilation
      eatgv: fix compilation
      escape124: remove unused variable.
      escape130: convert to refcounted frames
      evrcdec: convert to refcounted frames
      exr: convert to refcounted frames
      mvcdec: convert to refcounted frames
      paf: properly free the frame data on decode close
      sgirle: convert to refcounted frames
      lavfi/moviesrc: use refcounted frames

Michael Niedermayer (56):
      Merge commit '759001c534287a96dc96d1e274665feb7059145d'
      resolve conflicts in headers
      motion_est: resolve conflict
      mpeg4videodec: fix conflicts
      dpcm conflict fix
      dpx: fix conflicts
      indeo3: resolve confilcts
      kmvc: resolve conflicts
      kmvc: resolve conflicts
      h264: resolve conflicts
      utils: resolve conflicts
      rawdec: resolve conflcits
      mpegvideo: resolve conflicts
      svq1enc: resolve conflicts
      mpegvideo: dont clear data, fix assertion failure on fate vsynth1 with threads
      pthreads: resolve conflicts
      frame_thread_encoder: simple compilefix not yet tested
      snow: update to buffer refs
      crytsalhd: fix compile
      dirac: switch to new API
      sonic: update to new API
      svq1: resolve conflict, update to new API
      ffwavesynth: update to new buffer API
      g729: update to new API
      indeo5: fix compile
      j2kdec: update to new buffer API
      linopencore-amr: fix compile
      libvorbisdec: update to new API
      loco: fix compile
      paf: update to new API
      proresdec: update to new API
      vp56: update to new api / resolve conflicts
      xface: convert to refcounted frames
      xan: fix compile&fate
      v408: update to ref counted buffers
      v308: update to ref counted buffers
      yuv4dec: update to ref counted buffers
      y41p: update to ref counted frames
      xbm: update to refcounted frames
      targa_y216: update to refcounted buffers
      qpeg: fix fate/crash
      cdxl: fix fate
      tscc: fix reget buffer useage
      targa_y216dec: fix style
      msmpeg4: fix fate
      h264: ref_picture() copy fields that have been lost too
      update_frame_pool: use channel field
      h264: Put code that prevents deadlocks back
      mpegvideo: dont allow last == current
      wmalossless: fix buffer ref messup
      ff_alloc_picture: free tables in case of dimension mismatches
      h264: fix null pointer dereference and assertion failure
      frame_thread_encoder: update to bufrefs
      ec: fix used arrays
      snowdec: fix off by 1 error in dimensions check
      h264: disallow single unpaired fields as references of frames

Paul B Mahol (2):
      lavc/vima: convert to refcounted frames
      sanm: convert to refcounted frames

Conflicts:
	libavcodec/4xm.c
	libavcodec/8bps.c
	libavcodec/8svx.c
	libavcodec/aasc.c
	libavcodec/alsdec.c
	libavcodec/anm.c
	libavcodec/ansi.c
	libavcodec/avs.c
	libavcodec/bethsoftvideo.c
	libavcodec/bfi.c
	libavcodec/c93.c
	libavcodec/cavsdec.c
	libavcodec/cdgraphics.c
	libavcodec/cinepak.c
	libavcodec/cljr.c
	libavcodec/cscd.c
	libavcodec/dnxhddec.c
	libavcodec/dpcm.c
	libavcodec/dpx.c
	libavcodec/dsicinav.c
	libavcodec/dvdec.c
	libavcodec/dxa.c
	libavcodec/eacmv.c
	libavcodec/eamad.c
	libavcodec/eatgq.c
	libavcodec/eatgv.c
	libavcodec/eatqi.c
	libavcodec/error_resilience.c
	libavcodec/escape124.c
	libavcodec/ffv1.h
	libavcodec/ffv1dec.c
	libavcodec/flicvideo.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/g723_1.c
	libavcodec/gifdec.c
	libavcodec/h264.c
	libavcodec/h264.h
	libavcodec/h264_direct.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_refs.c
	libavcodec/huffyuvdec.c
	libavcodec/idcinvideo.c
	libavcodec/iff.c
	libavcodec/indeo2.c
	libavcodec/indeo3.c
	libavcodec/internal.h
	libavcodec/interplayvideo.c
	libavcodec/ivi_common.c
	libavcodec/jvdec.c
	libavcodec/kgv1dec.c
	libavcodec/kmvc.c
	libavcodec/lagarith.c
	libavcodec/libopenjpegdec.c
	libavcodec/mdec.c
	libavcodec/mimic.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mmvideo.c
	libavcodec/motion_est.c
	libavcodec/motionpixels.c
	libavcodec/mpc7.c
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/msrle.c
	libavcodec/msvideo1.c
	libavcodec/nuv.c
	libavcodec/options_table.h
	libavcodec/pcx.c
	libavcodec/pictordec.c
	libavcodec/pngdec.c
	libavcodec/pnmdec.c
	libavcodec/pthread.c
	libavcodec/qpeg.c
	libavcodec/qtrle.c
	libavcodec/r210dec.c
	libavcodec/rawdec.c
	libavcodec/roqvideodec.c
	libavcodec/rpza.c
	libavcodec/smacker.c
	libavcodec/smc.c
	libavcodec/svq1dec.c
	libavcodec/svq1enc.c
	libavcodec/targa.c
	libavcodec/tiertexseqv.c
	libavcodec/tiff.c
	libavcodec/tmv.c
	libavcodec/truemotion1.c
	libavcodec/truemotion2.c
	libavcodec/tscc.c
	libavcodec/ulti.c
	libavcodec/utils.c
	libavcodec/utvideodec.c
	libavcodec/v210dec.c
	libavcodec/v210x.c
	libavcodec/vb.c
	libavcodec/vble.c
	libavcodec/vcr1.c
	libavcodec/vmdav.c
	libavcodec/vmnc.c
	libavcodec/vp3.c
	libavcodec/vp56.c
	libavcodec/vp56.h
	libavcodec/vp6.c
	libavcodec/vqavideo.c
	libavcodec/wavpack.c
	libavcodec/xl.c
	libavcodec/xxan.c
	libavcodec/zmbv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-12 03:23:28 +01:00

322 lines
9.8 KiB
C

/*
* Escape 130 Video Decoder
* Copyright (C) 2008 Eli Friedman (eli.friedman <at> gmail.com)
*
* 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 "avcodec.h"
#define BITSTREAM_READER_LE
#include "get_bits.h"
#include "internal.h"
typedef struct Escape130Context {
AVFrame frame;
uint8_t *bases;
} Escape130Context;
/**
* Initialize the decoder
* @param avctx decoder context
* @return 0 success, negative on error
*/
static av_cold int escape130_decode_init(AVCodecContext *avctx)
{
Escape130Context *s = avctx->priv_data;
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
avcodec_get_frame_defaults(&s->frame);
if((avctx->width&1) || (avctx->height&1)){
av_log(avctx, AV_LOG_ERROR, "Dimensions are not a multiple of the block size\n");
return AVERROR(EINVAL);
}
s->bases= av_malloc(avctx->width * avctx->height /4);
return 0;
}
static av_cold int escape130_decode_close(AVCodecContext *avctx)
{
Escape130Context *s = avctx->priv_data;
av_frame_unref(&s->frame);
av_freep(&s->bases);
return 0;
}
static unsigned decode_skip_count(GetBitContext* gb) {
unsigned value;
// This function reads a maximum of 27 bits,
// which is within the padding space
if (get_bits_left(gb) < 1+3)
return -1;
value = get_bits1(gb);
if (value)
return 0;
value = get_bits(gb, 3);
if (value)
return value;
value = get_bits(gb, 8);
if (value)
return value + 7;
value = get_bits(gb, 15);
if (value)
return value + 262;
return -1;
}
/**
* Decode a single frame
* @param avctx decoder context
* @param data decoded frame
* @param got_frame have decoded frame
* @param buf input buffer
* @param buf_size input buffer size
* @return 0 success, -1 on error
*/
static int escape130_decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
Escape130Context *s = avctx->priv_data;
GetBitContext gb;
unsigned i;
int ret;
uint8_t *old_y, *old_cb, *old_cr,
*new_y, *new_cb, *new_cr;
unsigned old_y_stride, old_cb_stride, old_cr_stride,
new_y_stride, new_cb_stride, new_cr_stride;
unsigned total_blocks = avctx->width * avctx->height / 4,
block_index, row_index = 0;
unsigned y[4] = {0}, cb = 16, cr = 16;
unsigned skip = -1;
unsigned y_base = 0;
uint8_t *yb= s->bases;
AVFrame *frame = data;
init_get_bits(&gb, buf, buf_size * 8);
if (get_bits_left(&gb) < 128)
return -1;
// Header; no useful information in here
skip_bits_long(&gb, 128);
if (ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
new_y = frame->data[0];
new_cb = frame->data[1];
new_cr = frame->data[2];
new_y_stride = frame->linesize[0];
new_cb_stride = frame->linesize[1];
new_cr_stride = frame->linesize[2];
old_y = s->frame.data[0];
old_cb = s->frame.data[1];
old_cr = s->frame.data[2];
old_y_stride = s->frame.linesize[0];
old_cb_stride = s->frame.linesize[1];
old_cr_stride = s->frame.linesize[2];
av_log(avctx, AV_LOG_DEBUG,
"Strides: %i, %i\n",
new_y_stride, new_cb_stride);
for (block_index = 0; block_index < total_blocks; block_index++) {
// Note that this call will make us skip the rest of the blocks
// if the frame prematurely ends
if (skip == -1)
skip = decode_skip_count(&gb);
if (skip) {
if (old_y) {
y[0] = old_y[0] / 4;
y[1] = old_y[1] / 4;
y[2] = old_y[old_y_stride] / 4;
y[3] = old_y[old_y_stride+1] / 4;
y_base= yb[0];
cb = old_cb[0] / 8;
cr = old_cr[0] / 8;
} else {
y_base=y[0] = y[1] = y[2] = y[3] = 0;
cb = cr = 16;
}
} else {
if (get_bits1(&gb)) {
static const uint8_t offset_table[] = {2, 4, 10, 20};
static const int8_t sign_table[64][4] =
{ {0, 0, 0, 0},
{-1, 1, 0, 0},
{1, -1, 0, 0},
{-1, 0, 1, 0},
{-1, 1, 1, 0},
{0, -1, 1, 0},
{1, -1, 1, 0},
{-1, -1, 1, 0},
{1, 0, -1, 0},
{0, 1, -1, 0},
{1, 1, -1, 0},
{-1, 1, -1, 0},
{1, -1, -1, 0},
{-1, 0, 0, 1},
{-1, 1, 0, 1},
{0, -1, 0, 1},
{0, 0, 0, 0},
{1, -1, 0, 1},
{-1, -1, 0, 1},
{-1, 0, 1, 1},
{-1, 1, 1, 1},
{0, -1, 1, 1},
{1, -1, 1, 1},
{-1, -1, 1, 1},
{0, 0, -1, 1},
{1, 0, -1, 1},
{-1, 0, -1, 1},
{0, 1, -1, 1},
{1, 1, -1, 1},
{-1, 1, -1, 1},
{0, -1, -1, 1},
{1, -1, -1, 1},
{0, 0, 0, 0},
{-1, -1, -1, 1},
{1, 0, 0, -1},
{0, 1, 0, -1},
{1, 1, 0, -1},
{-1, 1, 0, -1},
{1, -1, 0, -1},
{0, 0, 1, -1},
{1, 0, 1, -1},
{-1, 0, 1, -1},
{0, 1, 1, -1},
{1, 1, 1, -1},
{-1, 1, 1, -1},
{0, -1, 1, -1},
{1, -1, 1, -1},
{-1, -1, 1, -1},
{0, 0, 0, 0},
{1, 0, -1, -1},
{0, 1, -1, -1},
{1, 1, -1, -1},
{-1, 1, -1, -1},
{1, -1, -1, -1} };
unsigned sign_selector = get_bits(&gb, 6);
unsigned difference_selector = get_bits(&gb, 2);
y_base = 2 * get_bits(&gb, 5);
for (i = 0; i < 4; i++) {
y[i] = av_clip((int)y_base + offset_table[difference_selector] *
sign_table[sign_selector][i], 0, 63);
}
} else if (get_bits1(&gb)) {
if (get_bits1(&gb)) {
y_base = get_bits(&gb, 6);
} else {
unsigned adjust_index = get_bits(&gb, 3);
static const int8_t adjust[] = {-4, -3, -2, -1, 1, 2, 3, 4};
y_base = (y_base + adjust[adjust_index]) & 63;
}
for (i = 0; i < 4; i++)
y[i] = y_base;
}
if (get_bits1(&gb)) {
if (get_bits1(&gb)) {
cb = get_bits(&gb, 5);
cr = get_bits(&gb, 5);
} else {
unsigned adjust_index = get_bits(&gb, 3);
static const int8_t adjust[2][8] =
{ { 1, 1, 0, -1, -1, -1, 0, 1 },
{ 0, 1, 1, 1, 0, -1, -1, -1 } };
cb = (cb + adjust[0][adjust_index]) & 31;
cr = (cr + adjust[1][adjust_index]) & 31;
}
}
}
*yb++= y_base;
new_y[0] = y[0] * 4;
new_y[1] = y[1] * 4;
new_y[new_y_stride] = y[2] * 4;
new_y[new_y_stride + 1] = y[3] * 4;
*new_cb = cb * 8;
*new_cr = cr * 8;
if (old_y)
old_y += 2, old_cb++, old_cr++;
new_y += 2, new_cb++, new_cr++;
row_index++;
if (avctx->width / 2 == row_index) {
row_index = 0;
if (old_y) {
old_y += old_y_stride * 2 - avctx->width;
old_cb += old_cb_stride - avctx->width / 2;
old_cr += old_cr_stride - avctx->width / 2;
}
new_y += new_y_stride * 2 - avctx->width;
new_cb += new_cb_stride - avctx->width / 2;
new_cr += new_cr_stride - avctx->width / 2;
}
skip--;
}
av_log(avctx, AV_LOG_DEBUG,
"Escape sizes: %i, %i\n",
buf_size, get_bits_count(&gb) / 8);
av_frame_unref(&s->frame);
if ((ret = av_frame_ref(&s->frame, frame)) < 0)
return ret;
*got_frame = 1;
return buf_size;
}
AVCodec ff_escape130_decoder = {
.name = "escape130",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_ESCAPE130,
.priv_data_size = sizeof(Escape130Context),
.init = escape130_decode_init,
.close = escape130_decode_close,
.decode = escape130_decode_frame,
.capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("Escape 130"),
};