* DV encoder
* Copyright (c) 2003 Roman Shaposhnik
*
- * 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
*/
PixblockDSPContext pdsp;
int ret;
- s->sys = av_dv_codec_profile(avctx->width, avctx->height, avctx->pix_fmt);
+ s->sys = av_dv_codec_profile2(avctx->width, avctx->height, avctx->pix_fmt, avctx->time_base);
if (!s->sys) {
av_log(avctx, AV_LOG_ERROR, "Found no DV profile for %ix%i %s video. "
"Valid DV profiles are:\n",
ff_dv_print_profiles(avctx, AV_LOG_ERROR);
return AVERROR(EINVAL);
}
+ if (avctx->height > 576) {
+ av_log(avctx, AV_LOG_ERROR, "DVCPRO HD encoding is not supported.\n");
+ return AVERROR_PATCHWELCOME;
+ }
ret = ff_dv_init_dynamic_tables(s, s->sys);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error initializing work tables.\n");
dv_vlc_map_tableinit();
+ memset(&fdsp,0, sizeof(fdsp));
+ memset(&mecc,0, sizeof(mecc));
+ memset(&pdsp,0, sizeof(pdsp));
ff_fdctdsp_init(&fdsp, avctx);
ff_me_cmp_init(&mecc, avctx);
ff_pixblockdsp_init(&pdsp, avctx);
if (bits_left) {
size -= bits_left;
put_bits(pb, bits_left, vlc >> size);
- vlc = vlc & ((1 << size) - 1);
+ vlc = av_mod_uintp2(vlc, size);
}
if (pb + 1 >= pb_end) {
bi->partial_bit_count = size;
170627, 165371, 160727, 153560, 160727, 144651, 144651, 136258,
};
static const int dv_weight_248[64] = {
- 131072, 242189, 257107, 237536, 229376, 200636, 242189, 223754,
- 224969, 196781, 262144, 242189, 229376, 200636, 257107, 237536,
- 211916, 185364, 235923, 217965, 229376, 211916, 206433, 180568,
- 242189, 223754, 224969, 196781, 211916, 185364, 235923, 217965,
- 200704, 175557, 222935, 205965, 200636, 185364, 195068, 170627,
- 229376, 211916, 206433, 180568, 200704, 175557, 222935, 205965,
- 175557, 153560, 188995, 174609, 165371, 144651, 200636, 185364,
- 195068, 170627, 175557, 153560, 188995, 174609, 165371, 144651,
+ 131072, 262144, 257107, 257107, 242189, 242189, 242189, 242189,
+ 237536, 237536, 229376, 229376, 200636, 200636, 224973, 224973,
+ 223754, 223754, 235923, 235923, 229376, 229376, 217965, 217965,
+ 211916, 211916, 196781, 196781, 185364, 185364, 206433, 206433,
+ 211916, 211916, 222935, 222935, 200636, 200636, 205964, 205964,
+ 200704, 200704, 180568, 180568, 175557, 175557, 195068, 195068,
+ 185364, 185364, 188995, 188995, 174606, 174606, 175557, 175557,
+ 170627, 170627, 153560, 153560, 165371, 165371, 144651, 144651,
};
static av_always_inline int dv_init_enc_block(EncBlockInfo *bi, uint8_t *data,
* method suggested in SMPTE 314M Table 22, and an improved
* method. The SMPTE method is very conservative; it assigns class
* 3 (i.e. severe quantization) to any block where the largest AC
- * component is greater than 36. Libav's DV encoder tracks AC bit
+ * component is greater than 36. FFmpeg's DV encoder tracks AC bit
* consumption precisely, so there is no need to bias most blocks
* towards strongly lossy compression. Instead, we assign class 2
* to most blocks, and use class 3 only when strictly necessary
#if 0 /* SMPTE spec method */
static const int classes[] = { 12, 24, 36, 0xffff };
-#else /* improved Libav method */
+#else /* improved FFmpeg method */
static const int classes[] = { -1, -1, 255, 0xffff };
#endif
int max = classes[0];
int prev = 0;
- assert((((int) blk) & 15) == 0);
+ av_assert2((((int) blk) & 15) == 0);
bi->area_q[0] =
bi->area_q[1] =
if (level + 15 > 30U) {
bi->sign[i] = (level >> 31) & 1;
- /* Weight it and and shift down into range, adding for rounding.
+ /* Weight it and shift down into range, adding for rounding.
* The extra division by a factor of 2^4 reverses the 8x
* expansion of the DCT AND the 2x doubling of the weights. */
level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits + 3))) >>
b->bit_size[a] = 1; // 4 areas 4 bits for EOB :)
b->area_q[a]++;
prev = b->prev[a];
- assert(b->next[prev] >= mb_area_start[a + 1] || b->mb[prev]);
+ av_assert2(b->next[prev] >= mb_area_start[a + 1] || b->mb[prev]);
for (k = b->next[prev]; k < mb_area_start[a + 1]; k = b->next[k]) {
b->mb[k] >>= 1;
if (b->mb[k]) {
if (b->next[k] >= mb_area_start[a + 1] && b->next[k] < 64) {
for (a2 = a + 1; b->next[k] >= mb_area_start[a2 + 1]; a2++)
b->prev[a2] = prev;
- assert(a2 < 4);
- assert(b->mb[b->next[k]]);
+ av_assert2(a2 < 4);
+ av_assert2(b->mb[b->next[k]]);
b->bit_size[a2] += dv_rl2vlc_size(b->next[k] - prev - 1, b->mb[b->next[k]]) -
dv_rl2vlc_size(b->next[k] - k - 1, b->mb[b->next[k]]);
- assert(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2 + 1] != k));
+ av_assert2(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2 + 1] != k));
b->prev[a2] = prev;
}
b->next[prev] = b->next[k];
* compression scheme (if any).
*/
int apt = (c->sys->pix_fmt == AV_PIX_FMT_YUV420P ? 0 : 1);
+ int fs = c->frame->top_field_first ? 0x00 : 0x40;
uint8_t aspect = 0;
if ((int) (av_q2d(c->avctx->sample_aspect_ratio) *
buf[2] = 0xc8 | /* reserved -- always b11001xxx */
aspect;
buf[3] = (1 << 7) | /* frame/field flag 1 -- frame, 0 -- field */
- (1 << 6) | /* first/second field flag 0 -- field 2, 1 -- field 1 */
+ fs | /* first/second field flag 0 -- field 2, 1 -- field 1 */
(1 << 5) | /* frame change flag 0 -- same picture as before, 1 -- different */
(1 << 4) | /* 1 - interlaced, 0 - noninterlaced */
0xc; /* reserved -- always b1100 */
DVVideoContext *s = c->priv_data;
int ret;
- if ((ret = ff_alloc_packet(pkt, s->sys->frame_size)) < 0) {
- av_log(c, AV_LOG_ERROR, "Error getting output packet.\n");
+ if ((ret = ff_alloc_packet2(c, pkt, s->sys->frame_size, 0)) < 0)
return ret;
- }
c->pix_fmt = s->sys->pix_fmt;
s->frame = frame;
.priv_data_size = sizeof(DVVideoContext),
.init = dvvideo_encode_init,
.encode2 = dvvideo_encode_frame,
- .capabilities = CODEC_CAP_SLICE_THREADS,
+ .capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_INTRA_ONLY,
.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
projects / ffmpeg / blobdiff