diff options
author | povaddict <povaddict@users.sourceforge.net> | 2010-02-10 02:16:44 +0300 |
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committer | povaddict <povaddict@users.sourceforge.net> | 2010-02-10 02:16:44 +0300 |
commit | 726a91b12a7524e45e7a901c9e4883af5b1bffe6 (patch) | |
tree | f5d25e3b2e84c92f4901280c73d5d3d7e6c3cd19 /src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/flvdec.c | |
parent | 02183f6e47ad4ea1057de9950482f291f2ae4290 (diff) |
Rename several directories to use MixedCase instead of lowercase.
They now mostly match the case used in #includes,
and they're consistent with the names of the .h files they contain.
git-svn-id: https://mpc-hc.svn.sourceforge.net/svnroot/mpc-hc/trunk@1648 10f7b99b-c216-0410-bff0-8a66a9350fd8
Diffstat (limited to 'src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/flvdec.c')
-rw-r--r-- | src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/flvdec.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/flvdec.c b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/flvdec.c new file mode 100644 index 000000000..104e48d91 --- /dev/null +++ b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/flvdec.c @@ -0,0 +1,135 @@ +/* + * FLV decoding. + * 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 "mpegvideo.h" +#include "h263.h" +#include "flv.h" + +void ff_flv2_decode_ac_esc(GetBitContext *gb, int *level, int *run, int *last){ + int is11 = get_bits1(gb); + *last = get_bits1(gb); + *run = get_bits(gb, 6); + if(is11){ + *level = get_sbits(gb, 11); + } else { + *level = get_sbits(gb, 7); + } +} + +int ff_flv_decode_picture_header(MpegEncContext *s) +{ + int format, width, height; + + /* picture header */ + if (get_bits_long(&s->gb, 17) != 1) { + av_log(s->avctx, AV_LOG_ERROR, "Bad picture start code\n"); + return -1; + } + format = get_bits(&s->gb, 5); + if (format != 0 && format != 1) { + av_log(s->avctx, AV_LOG_ERROR, "Bad picture format\n"); + return -1; + } + s->h263_flv = format+1; + s->picture_number = get_bits(&s->gb, 8); /* picture timestamp */ + format = get_bits(&s->gb, 3); + switch (format) { + case 0: + width = get_bits(&s->gb, 8); + height = get_bits(&s->gb, 8); + break; + case 1: + width = get_bits(&s->gb, 16); + height = get_bits(&s->gb, 16); + break; + case 2: + width = 352; + height = 288; + break; + case 3: + width = 176; + height = 144; + break; + case 4: + width = 128; + height = 96; + break; + case 5: + width = 320; + height = 240; + break; + case 6: + width = 160; + height = 120; + break; + default: + width = height = 0; + break; + } + if(avcodec_check_dimensions(s->avctx, width, height)) + return -1; + s->width = width; + s->height = height; + + s->pict_type = FF_I_TYPE + get_bits(&s->gb, 2); + s->dropable= s->pict_type > FF_P_TYPE; + if (s->dropable) + s->pict_type = FF_P_TYPE; + + skip_bits1(&s->gb); /* deblocking flag */ + s->chroma_qscale= s->qscale = get_bits(&s->gb, 5); + + s->h263_plus = 0; + + s->unrestricted_mv = 1; + s->h263_long_vectors = 0; + + /* PEI */ + while (get_bits1(&s->gb) != 0) { + skip_bits(&s->gb, 8); + } + s->f_code = 1; + + if(s->avctx->debug & FF_DEBUG_PICT_INFO){ + av_log(s->avctx, AV_LOG_DEBUG, "%c esc_type:%d, qp:%d num:%d\n", + s->dropable ? 'D' : av_get_pict_type_char(s->pict_type), s->h263_flv-1, s->qscale, s->picture_number); + } + + s->y_dc_scale_table= + s->c_dc_scale_table= ff_mpeg1_dc_scale_table; + + return 0; +} + +AVCodec flv_decoder = { + "flv", + CODEC_TYPE_VIDEO, + CODEC_ID_FLV1, + sizeof(MpegEncContext), + ff_h263_decode_init, + NULL, + ff_h263_decode_end, + ff_h263_decode_frame, + /*.capabilities = */CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1, + /*.next = */NULL, + /*.flush = */NULL, + /*.supported_framerates = */NULL, + /*.pix_fmts = */NULL, + /*.long_name = */NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"), +}; |