static av_cold int wmv2_encode_init(AVCodecContext *avctx)
{
Wmv2Context *const w = avctx->priv_data;
if (ff_mpv_encode_init(avctx) < 0)
return -1;
ff_wmv2_common_init(w);
avctx->extradata_size = 4;
avctx->extradata = av_mallocz(avctx->extradata_size + 10);
encode_ext_header(w);
return 0;
}
static av_cold int wmv2_encode_init(AVCodecContext *avctx)
{
Wmv2Context *const w = avctx->priv_data;
if (ff_mpv_encode_init(avctx) < 0)
return -1;
ff_wmv2_common_init(w);
avctx->extradata_size = 4;
avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!avctx->extradata)
return AVERROR(ENOMEM);
encode_ext_header(w);
return 0;
}
static av_cold int encode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
if (ff_mpv_encode_init(avctx) < 0)
return -1;
if (find_frame_rate_index(s) < 0) {
if (s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n",
avctx->time_base.den, avctx->time_base.num);
return -1;
} else {
av_log(avctx, AV_LOG_INFO,
"MPEG1/2 does not support %d/%d fps, there may be AV sync issues\n",
avctx->time_base.den, avctx->time_base.num);
}
}
if (avctx->profile == FF_PROFILE_UNKNOWN) {
if (avctx->level != FF_LEVEL_UNKNOWN) {
av_log(avctx, AV_LOG_ERROR, "Set profile and level\n");
return -1;
}
/* Main or 4:2:2 */
avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0;
}
if (avctx->level == FF_LEVEL_UNKNOWN) {
if (avctx->profile == 0) { /* 4:2:2 */
if (avctx->width <= 720 && avctx->height <= 608)
avctx->level = 5; /* Main */
else
avctx->level = 2; /* High */
} else {
if (avctx->profile != 1 && s->chroma_format != CHROMA_420) {
av_log(avctx, AV_LOG_ERROR,
"Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n");
return -1;
}
if (avctx->width <= 720 && avctx->height <= 576)
avctx->level = 8; /* Main */
else if (avctx->width <= 1440)
avctx->level = 6; /* High 1440 */
else
avctx->level = 4; /* High */
}
}
if (s->drop_frame_timecode && s->frame_rate_index != 4) {
av_log(avctx, AV_LOG_ERROR,
"Drop frame time code only allowed with 1001/30000 fps\n");
return -1;
}
#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->timecode_frame_start)
s->timecode_frame_start = avctx->timecode_frame_start;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
return 0;
}
static av_cold int encode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
if (avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO && avctx->height > 2800)
avctx->thread_count = 1;
if (ff_mpv_encode_init(avctx) < 0)
return -1;
if (find_frame_rate_index(s) < 0) {
if (s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n",
avctx->time_base.den, avctx->time_base.num);
return -1;
} else {
av_log(avctx, AV_LOG_INFO,
"MPEG1/2 does not support %d/%d fps, there may be AV sync issues\n",
avctx->time_base.den, avctx->time_base.num);
}
}
if (avctx->profile == FF_PROFILE_UNKNOWN) {
if (avctx->level != FF_LEVEL_UNKNOWN) {
av_log(avctx, AV_LOG_ERROR, "Set profile and level\n");
return -1;
}
/* Main or 4:2:2 */
avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0;
}
if (avctx->level == FF_LEVEL_UNKNOWN) {
if (avctx->profile == 0) { /* 4:2:2 */
if (avctx->width <= 720 && avctx->height <= 608)
avctx->level = 5; /* Main */
else
avctx->level = 2; /* High */
} else {
if (avctx->profile != 1 && s->chroma_format != CHROMA_420) {
av_log(avctx, AV_LOG_ERROR,
"Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n");
return -1;
}
if (avctx->width <= 720 && avctx->height <= 576)
avctx->level = 8; /* Main */
else if (avctx->width <= 1440)
avctx->level = 6; /* High 1440 */
else
avctx->level = 4; /* High */
}
}
if ((avctx->width & 0xFFF) == 0 && (avctx->height & 0xFFF) == 1) {
av_log(avctx, AV_LOG_ERROR, "Width / Height is invalid for MPEG2\n");
return AVERROR(EINVAL);
}
if (s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) {
if ((avctx->width & 0xFFF) == 0 || (avctx->height & 0xFFF) == 0) {
av_log(avctx, AV_LOG_ERROR, "Width or Height are not allowed to be multiples of 4096\n"
"add '-strict %d' if you want to use them anyway.\n", FF_COMPLIANCE_UNOFFICIAL);
return AVERROR(EINVAL);
}
}
s->drop_frame_timecode = s->drop_frame_timecode || !!(avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE);
if (s->drop_frame_timecode)
s->tc.flags |= AV_TIMECODE_FLAG_DROPFRAME;
if (s->drop_frame_timecode && s->frame_rate_index != 4) {
av_log(avctx, AV_LOG_ERROR,
"Drop frame time code only allowed with 1001/30000 fps\n");
return -1;
}
if (s->tc_opt_str) {
AVRational rate = ff_mpeg12_frame_rate_tab[s->frame_rate_index];
int ret = av_timecode_init_from_string(&s->tc, rate, s->tc_opt_str, s);
if (ret < 0)
return ret;
s->drop_frame_timecode = !!(s->tc.flags & AV_TIMECODE_FLAG_DROPFRAME);
s->avctx->timecode_frame_start = s->tc.start;
} else {
s->avctx->timecode_frame_start = 0; // default is -1
}
return 0;
}
