* Copyright (c) 2006-2007 Konstantin Shishkov
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#endif
+static av_cold int vc1_decode_init_alloc_tables(VC1Context *v)
+{
+ MpegEncContext *s = &v->s;
+ int i;
+
+ /* Allocate mb bitplanes */
+ v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
+ v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
+ v->acpred_plane = av_malloc(s->mb_stride * s->mb_height);
+ v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
+
+ v->n_allocated_blks = s->mb_width + 2;
+ v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks);
+ v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride);
+ v->cbp = v->cbp_base + s->mb_stride;
+ v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride);
+ v->ttblk = v->ttblk_base + s->mb_stride;
+ v->is_intra_base = av_malloc(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride);
+ v->is_intra = v->is_intra_base + s->mb_stride;
+ v->luma_mv_base = av_malloc(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride);
+ v->luma_mv = v->luma_mv_base + s->mb_stride;
+
+ /* allocate block type info in that way so it could be used with s->block_index[] */
+ v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2);
+ v->mb_type[0] = v->mb_type_base + s->b8_stride + 1;
+ v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1;
+ v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
+
+ /* Init coded blocks info */
+ if (v->profile == PROFILE_ADVANCED)
+ {
+// if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0)
+// return -1;
+// if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0)
+// return -1;
+ }
+
+ ff_intrax8_common_init(&v->x8,s);
+
+ if (s->avctx->codec_id == CODEC_ID_WMV3IMAGE || s->avctx->codec_id == CODEC_ID_VC1IMAGE) {
+ for (i = 0; i < 4; i++)
+ if (!(v->sr_rows[i>>1][i%2] = av_malloc(v->output_width))) return -1;
+ }
+
+ if (!v->mv_type_mb_plane || !v->direct_mb_plane || !v->acpred_plane || !v->over_flags_plane ||
+ !v->block || !v->cbp_base || !v->ttblk_base || !v->is_intra_base || !v->luma_mv_base ||
+ !v->mb_type_base)
+ return -1;
+
+ return 0;
+}
+
/** Initialize a VC1/WMV3 decoder
* @todo TODO: Handle VC-1 IDUs (Transport level?)
* @todo TODO: Decypher remaining bits in extra_data
VC1Context *v = avctx->priv_data;
MpegEncContext *s = &v->s;
GetBitContext gb;
- int i, cur_width, cur_height;
+ int i;
/* save the container output size for WMImage */
v->output_width = avctx->width;
avctx->idct_algo=FF_IDCT_WMV2;
}
- if(ff_msmpeg4_decode_init(avctx) < 0)
- return -1;
if (vc1_init_common(v) < 0) return -1;
ff_vc1dsp_init(&v->vc1dsp);
- cur_width = avctx->coded_width = avctx->width;
- cur_height = avctx->coded_height = avctx->height;
if (avctx->codec_id == CODEC_ID_WMV3 || avctx->codec_id == CODEC_ID_WMV3IMAGE)
{
int count = 0;
}
v->res_sprite = (avctx->codec_tag == MKTAG('W','V','P','2'));
}
- // Sequence header information may not have been parsed
- // yet when ff_msmpeg4_decode_init was called the fist time
- // above. If sequence information changes, we need to call
- // it again.
- if (cur_width != avctx->width ||
- cur_height != avctx->height) {
- MPV_common_end(s);
- if(ff_msmpeg4_decode_init(avctx) < 0)
- return -1;
- avctx->coded_width = avctx->width;
- avctx->coded_height = avctx->height;
- }
avctx->profile = v->profile;
if (v->profile == PROFILE_ADVANCED)
avctx->level = v->level;
avctx->has_b_frames= !!(avctx->max_b_frames);
- s->low_delay = !avctx->has_b_frames;
s->mb_width = (avctx->coded_width+15)>>4;
s->mb_height = (avctx->coded_height+15)>>4;
v->top_blk_sh = 0;
}
- /* Allocate mb bitplanes */
- v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->acpred_plane = av_malloc(s->mb_stride * s->mb_height);
- v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
-
- v->n_allocated_blks = s->mb_width + 2;
- v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks);
- v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride);
- v->cbp = v->cbp_base + s->mb_stride;
- v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride);
- v->ttblk = v->ttblk_base + s->mb_stride;
- v->is_intra_base = av_malloc(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride);
- v->is_intra = v->is_intra_base + s->mb_stride;
- v->luma_mv_base = av_malloc(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride);
- v->luma_mv = v->luma_mv_base + s->mb_stride;
-
- /* allocate block type info in that way so it could be used with s->block_index[] */
- v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2);
- v->mb_type[0] = v->mb_type_base + s->b8_stride + 1;
- v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1;
- v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
-
- /* Init coded blocks info */
- if (v->profile == PROFILE_ADVANCED)
- {
-// if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0)
-// return -1;
-// if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0)
-// return -1;
- }
-
- ff_intrax8_common_init(&v->x8,s);
-
if (avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE) {
- for (i = 0; i < 4; i++)
- if (!(v->sr_rows[i>>1][i%2] = av_malloc(v->output_width))) return -1;
-
- s->low_delay = 1;
-
v->sprite_width = avctx->coded_width;
v->sprite_height = avctx->coded_height;
return 0;
}
+/** Close a VC1/WMV3 decoder
+ * @warning Initial try at using MpegEncContext stuff
+ */
+static av_cold int vc1_decode_end(AVCodecContext *avctx)
+{
+ VC1Context *v = avctx->priv_data;
+ int i;
+
+ if ((avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE)
+ && v->sprite_output_frame.data[0])
+ avctx->release_buffer(avctx, &v->sprite_output_frame);
+ for (i = 0; i < 4; i++)
+ av_freep(&v->sr_rows[i>>1][i%2]);
+ av_freep(&v->hrd_rate);
+ av_freep(&v->hrd_buffer);
+ MPV_common_end(&v->s);
+ av_freep(&v->mv_type_mb_plane);
+ av_freep(&v->direct_mb_plane);
+ av_freep(&v->acpred_plane);
+ av_freep(&v->over_flags_plane);
+ av_freep(&v->mb_type_base);
+ av_freep(&v->block);
+ av_freep(&v->cbp_base);
+ av_freep(&v->ttblk_base);
+ av_freep(&v->is_intra_base); // FIXME use v->mb_type[]
+ av_freep(&v->luma_mv_base);
+ ff_intrax8_common_end(&v->x8);
+ return 0;
+}
+
/** Decode a VC1/WMV3 frame
* @todo TODO: Handle VC-1 IDUs (Transport level?)
return 0;
}
- /* We need to set current_picture_ptr before reading the header,
- * otherwise we cannot store anything in there. */
- if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {
- int i= ff_find_unused_picture(s, 0);
- s->current_picture_ptr= &s->picture[i];
- }
-
if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
if (v->profile < PROFILE_ADVANCED)
avctx->pix_fmt = PIX_FMT_VDPAU_WMV3;
}
}
+ if (s->context_initialized &&
+ (s->width != avctx->coded_width ||
+ s->height != avctx->coded_height)) {
+ vc1_decode_end(avctx);
+ }
+
+ if (!s->context_initialized) {
+ if (ff_msmpeg4_decode_init(avctx) < 0 || vc1_decode_init_alloc_tables(v) < 0)
+ return -1;
+
+ s->low_delay = !avctx->has_b_frames || v->res_sprite;
+
+ if (v->profile == PROFILE_ADVANCED) {
+ s->h_edge_pos = avctx->coded_width;
+ s->v_edge_pos = avctx->coded_height;
+ }
+ }
+
+ /* We need to set current_picture_ptr before reading the header,
+ * otherwise we cannot store anything in there. */
+ if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {
+ int i= ff_find_unused_picture(s, 0);
+ s->current_picture_ptr= &s->picture[i];
+ }
+
// do parse frame header
if(v->profile < PROFILE_ADVANCED) {
if(vc1_parse_frame_header(v, &s->gb) == -1) {
goto err;
}
+ // process pulldown flags
+ s->current_picture_ptr->f.repeat_pict = 0;
+ // Pulldown flags are only valid when 'broadcast' has been set.
+ // So ticks_per_frame will be 2
+ if (v->rff){
+ // repeat field
+ s->current_picture_ptr->f.repeat_pict = 1;
+ }else if (v->rptfrm){
+ // repeat frames
+ s->current_picture_ptr->f.repeat_pict = v->rptfrm * 2;
+ }
+
// 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;
}
-/** Close a VC1/WMV3 decoder
- * @warning Initial try at using MpegEncContext stuff
- */
-static av_cold int vc1_decode_end(AVCodecContext *avctx)
-{
- VC1Context *v = avctx->priv_data;
- int i;
-
- if ((avctx->codec_id == CODEC_ID_WMV3IMAGE || avctx->codec_id == CODEC_ID_VC1IMAGE)
- && v->sprite_output_frame.data[0])
- avctx->release_buffer(avctx, &v->sprite_output_frame);
- for (i = 0; i < 4; i++)
- av_freep(&v->sr_rows[i>>1][i%2]);
- av_freep(&v->hrd_rate);
- av_freep(&v->hrd_buffer);
- MPV_common_end(&v->s);
- av_freep(&v->mv_type_mb_plane);
- av_freep(&v->direct_mb_plane);
- av_freep(&v->acpred_plane);
- av_freep(&v->over_flags_plane);
- av_freep(&v->mb_type_base);
- av_freep(&v->block);
- av_freep(&v->cbp_base);
- av_freep(&v->ttblk_base);
- av_freep(&v->is_intra_base); // FIXME use v->mb_type[]
- av_freep(&v->luma_mv_base);
- ff_intrax8_common_end(&v->x8);
- return 0;
-}
-
static const AVProfile profiles[] = {
{ FF_PROFILE_VC1_SIMPLE, "Simple" },
{ FF_PROFILE_VC1_MAIN, "Main" },
projects / ffmpeg / blobdiff