* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2004 Maarten Daniels
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
}
/**
- * decodes the group of blocks header or slice header.
+ * Decode the group of blocks header or slice header.
* @return <0 if an error occurred
*/
static int h261_decode_gob_header(H261Context *h){
if(s->qscale==0) {
av_log(s->avctx, AV_LOG_ERROR, "qscale has forbidden 0 value\n");
- if (s->avctx->error_recognition >= FF_ER_COMPLIANT)
+ if (s->avctx->err_recognition & AV_EF_BITSTREAM)
return -1;
}
}
/**
- * decodes the group of blocks / video packet header.
+ * Decode the group of blocks / video packet header.
* @return <0 if no resync found
*/
static int ff_h261_resync(H261Context *h){
}
/**
- * decodes skipped macroblocks
+ * Decode skipped macroblocks.
* @return 0
*/
static int h261_decode_mb_skipped(H261Context *h, int mba1, int mba2 )
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
- s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
+ s->current_picture.f.mb_type[xy] = MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
s->mb_skipped = 1;
}
if(s->mb_intra){
- s->current_picture.mb_type[xy]= MB_TYPE_INTRA;
+ s->current_picture.f.mb_type[xy] = MB_TYPE_INTRA;
goto intra;
}
//set motion vectors
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
- s->current_picture.mb_type[xy]= MB_TYPE_16x16 | MB_TYPE_L0;
+ s->current_picture.f.mb_type[xy] = MB_TYPE_16x16 | MB_TYPE_L0;
s->mv[0][0][0] = h->current_mv_x * 2;//gets divided by 2 in motion compensation
s->mv[0][0][1] = h->current_mv_y * 2;
}
/**
- * decodes a macroblock
+ * Decode a macroblock.
* @return <0 if an error occurred
*/
static int h261_decode_block(H261Context * h, DCTELEM * block,
}
/**
- * decodes the H261 picture header.
+ * Decode the H.261 picture header.
* @return <0 if no startcode found
*/
static int h261_decode_picture_header(H261Context *h){
s->picture_number = (s->picture_number&~31) + i;
s->avctx->time_base= (AVRational){1001, 30000};
- s->current_picture.pts= s->picture_number;
+ s->current_picture.f.pts = s->picture_number;
/* PTYPE starts here */
skip_bits(&s->gb, 8);
}
- // h261 has no I-FRAMES, but if we pass FF_I_TYPE for the first frame, the codec crashes if it does
+ // h261 has no I-FRAMES, but if we pass AV_PICTURE_TYPE_I for the first frame, the codec crashes if it does
// not contain all I-blocks (e.g. when a packet is lost)
- s->pict_type = FF_P_TYPE;
+ s->pict_type = AV_PICTURE_TYPE_P;
h->gob_number = 0;
return 0;
}
//we need to set current_picture_ptr before reading the header, otherwise we cannot store anyting im there
- if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){
+ if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {
int i= ff_find_unused_picture(s, 0);
+ if (i < 0)
+ return i;
s->current_picture_ptr= &s->picture[i];
}
goto retry;
}
- // for hurry_up==5
- s->current_picture.pict_type= s->pict_type;
- s->current_picture.key_frame= s->pict_type == FF_I_TYPE;
+ // for skipping the frame
+ s->current_picture.f.pict_type = s->pict_type;
+ s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
- /* skip everything if we are in a hurry>=5 */
- if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);
- if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)
- ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)
+ if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==AV_PICTURE_TYPE_B)
+ ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=AV_PICTURE_TYPE_I)
|| avctx->skip_frame >= AVDISCARD_ALL)
return get_consumed_bytes(s, buf_size);
}
MPV_frame_end(s);
-assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
-assert(s->current_picture.pict_type == s->pict_type);
+assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
+assert(s->current_picture.f.pict_type == s->pict_type);
*pict= *(AVFrame*)s->current_picture_ptr;
ff_print_debug_info(s, pict);
}
AVCodec ff_h261_decoder = {
- "h261",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_H261,
- sizeof(H261Context),
- h261_decode_init,
- NULL,
- h261_decode_end,
- h261_decode_frame,
- CODEC_CAP_DR1,
+ .name = "h261",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_H261,
+ .priv_data_size = sizeof(H261Context),
+ .init = h261_decode_init,
+ .close = h261_decode_end,
+ .decode = h261_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("H.261"),
};
projects / ffmpeg / blobdiff