* H.26L/H.264/AVC/JVT/14496-10/... decoder
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
- * 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
*/
* @author Michael Niedermayer <michaelni@gmx.at>
*/
+#define UNCHECKED_BITSTREAM_READER 1
+
#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
#include "internal.h"
#include "cabac.h"
#include "cabac_functions.h"
}
return 0;
-} //FIXME cleanup like ff_h264_check_intra_pred_mode
+} //FIXME cleanup like check_intra_pred_mode
-/**
- * Check if the top & left blocks are available if needed and
- * change the dc mode so it only uses the available blocks.
- */
-int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
+static int check_intra_pred_mode(H264Context *h, int mode, int is_chroma){
MpegEncContext * const s = &h->s;
static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
if((h->left_samples_available&0x8080) != 0x8080){
mode= left[ mode ];
- if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
+ if(is_chroma && (h->left_samples_available&0x8080)){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
}
if(mode<0){
return mode;
}
+/**
+ * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra16x16_pred_mode(H264Context *h, int mode)
+{
+ return check_intra_pred_mode(h, mode, 0);
+}
+
+/**
+ * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra_chroma_pred_mode(H264Context *h, int mode)
+{
+ return check_intra_pred_mode(h, mode, 1);
+}
+
+
const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
int i, si, di;
uint8_t *dst;
i-= RS;
}
- if(i>=length-1){ //no escaped 0
- *dst_length= length;
- *consumed= length+1; //+1 for the header
- return src;
- }
-
bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
- av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
+ si=h->rbsp_buffer_size[bufidx];
+ av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE+MAX_MBPAIR_SIZE);
dst= h->rbsp_buffer[bufidx];
+ if(si != h->rbsp_buffer_size[bufidx])
+ memset(dst + length, 0, FF_INPUT_BUFFER_PADDING_SIZE+MAX_MBPAIR_SIZE);
if (dst == NULL){
return NULL;
}
+ if(i>=length-1){ //no escaped 0
+ *dst_length= length;
+ *consumed= length+1; //+1 for the header
+ if(h->s.avctx->flags2 & CODEC_FLAG2_FAST){
+ return src;
+ }else{
+ memcpy(dst, src, length);
+ return dst;
+ }
+ }
+
//printf("decoding esc\n");
memcpy(dst, src, i);
si=di=i;
s->dsp.prefetch(src[1]+off, s->linesize, 4);
s->dsp.prefetch(src[2]+off, s->linesize, 4);
}else{
- off= ((mx>>1) << pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + (64 << pixel_shift);
+ off= (((mx>>1)+64)<<pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize;
s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
}
}
int ff_h264_alloc_tables(H264Context *h){
MpegEncContext * const s = &h->s;
const int big_mb_num= s->mb_stride * (s->mb_height+1);
- const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count;
+ const int row_mb_num= 2*s->mb_stride*FFMAX(s->avctx->thread_count, 1);
int x,y;
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail)
s->height = s->avctx->height;
s->codec_id= s->avctx->codec->id;
- ff_h264dsp_init(&h->h264dsp, 8, 1);
- ff_h264_pred_init(&h->hpc, s->codec_id, 8, 1);
+ s->avctx->bits_per_raw_sample = 8;
+ h->cur_chroma_format_idc = 1;
+
+ ff_h264dsp_init(&h->h264dsp,
+ s->avctx->bits_per_raw_sample, h->cur_chroma_format_idc);
+ ff_h264_pred_init(&h->hpc, s->codec_id,
+ s->avctx->bits_per_raw_sample, h->cur_chroma_format_idc);
h->dequant_coeff_pps= -1;
s->unrestricted_mv=1;
+ s->dsp.dct_bits = 16;
dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
}
-int ff_h264_decode_extradata(H264Context *h)
+int ff_h264_decode_extradata(H264Context *h, const uint8_t *buf, int size)
{
AVCodecContext *avctx = h->s.avctx;
- if(avctx->extradata[0] == 1){
+ if(!buf || size <= 0)
+ return -1;
+
+ if(buf[0] == 1){
int i, cnt, nalsize;
- unsigned char *p = avctx->extradata;
+ const unsigned char *p = buf;
h->is_avc = 1;
- if(avctx->extradata_size < 7) {
+ if(size < 7) {
av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
return -1;
}
p += 6;
for (i = 0; i < cnt; i++) {
nalsize = AV_RB16(p) + 2;
- if (p - avctx->extradata + nalsize > avctx->extradata_size)
+ if(nalsize > size - (p-buf))
return -1;
if(decode_nal_units(h, p, nalsize) < 0) {
av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
cnt = *(p++); // Number of pps
for (i = 0; i < cnt; i++) {
nalsize = AV_RB16(p) + 2;
- if (p - avctx->extradata + nalsize > avctx->extradata_size)
+ if(nalsize > size - (p-buf))
return -1;
if (decode_nal_units(h, p, nalsize) < 0) {
av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
p += nalsize;
}
// Now store right nal length size, that will be use to parse all other nals
- h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
+ h->nal_length_size = (buf[4] & 0x03) + 1;
} else {
h->is_avc = 0;
- if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0)
+ if(decode_nal_units(h, buf, size) < 0)
return -1;
}
return 0;
for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
h->last_pocs[i] = INT_MIN;
h->prev_poc_msb= 1<<16;
+ h->prev_frame_num= -1;
h->x264_build = -1;
ff_h264_reset_sei(h);
if(avctx->codec_id == CODEC_ID_H264){
}
if(avctx->extradata_size > 0 && avctx->extradata &&
- ff_h264_decode_extradata(h))
+ ff_h264_decode_extradata(h, avctx->extradata, avctx->extradata_size))
return -1;
if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
copy_picture_range(h->delayed_pic, h1->delayed_pic, MAX_DELAYED_PIC_COUNT+2, s, s1);
h->last_slice_type = h1->last_slice_type;
+ h->sync = h1->sync;
if(!s->current_picture_ptr) return 0;
* See decode_nal_units().
*/
s->current_picture_ptr->f.key_frame = 0;
+ s->current_picture_ptr->sync = 0;
s->current_picture_ptr->mmco_reset= 0;
assert(s->linesize && s->uvlinesize);
Picture *out = s->current_picture_ptr;
Picture *cur = s->current_picture_ptr;
int i, pics, out_of_order, out_idx;
- int invalid = 0, cnt = 0;
s->current_picture_ptr->f.qscale_type = FF_QSCALE_TYPE_H264;
s->current_picture_ptr->f.pict_type = s->pict_type;
}
}
+ cur->mmco_reset = h->mmco_reset;
+ h->mmco_reset = 0;
//FIXME do something with unavailable reference frames
/* Sort B-frames into display order */
s->low_delay= 0;
}
+ for (i = 0; 1; i++) {
+ if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
+ if(i)
+ h->last_pocs[i-1] = cur->poc;
+ break;
+ } else if(i) {
+ h->last_pocs[i-1]= h->last_pocs[i];
+ }
+ }
+ out_of_order = MAX_DELAYED_PIC_COUNT - i;
+ if( cur->f.pict_type == AV_PICTURE_TYPE_B
+ || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2))
+ out_of_order = FFMAX(out_of_order, 1);
+ if(s->avctx->has_b_frames < out_of_order && !h->sps.bitstream_restriction_flag){
+ av_log(s->avctx, AV_LOG_WARNING, "Increasing reorder buffer to %d\n", out_of_order);
+ s->avctx->has_b_frames = out_of_order;
+ s->low_delay = 0;
+ }
+
pics = 0;
while(h->delayed_pic[pics]) pics++;
- assert(pics <= MAX_DELAYED_PIC_COUNT);
+ av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
h->delayed_pic[pics++] = cur;
if (cur->f.reference == 0)
cur->f.reference = DELAYED_PIC_REF;
- /* Frame reordering. This code takes pictures from coding order and sorts
- * them by their incremental POC value into display order. It supports POC
- * gaps, MMCO reset codes and random resets.
- * A "display group" can start either with a IDR frame (f.key_frame = 1),
- * and/or can be closed down with a MMCO reset code. In sequences where
- * there is no delay, we can't detect that (since the frame was already
- * output to the user), so we also set h->mmco_reset to detect the MMCO
- * reset code.
- * FIXME: if we detect insufficient delays (as per s->avctx->has_b_frames),
- * we increase the delay between input and output. All frames affected by
- * the lag (e.g. those that should have been output before another frame
- * that we already returned to the user) will be dropped. This is a bug
- * that we will fix later. */
- for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
- cnt += out->poc < h->last_pocs[i];
- invalid += out->poc == INT_MIN;
- }
- if (!h->mmco_reset && !cur->f.key_frame && cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) {
- h->mmco_reset = 2;
- if (pics > 1)
- h->delayed_pic[pics - 2]->mmco_reset = 2;
- }
- if (h->mmco_reset || cur->f.key_frame) {
- for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
- h->last_pocs[i] = INT_MIN;
- cnt = 0;
- invalid = MAX_DELAYED_PIC_COUNT;
- }
out = h->delayed_pic[0];
out_idx = 0;
- for (i = 1; i < MAX_DELAYED_PIC_COUNT && h->delayed_pic[i] &&
- !h->delayed_pic[i-1]->mmco_reset && !h->delayed_pic[i]->f.key_frame; i++)
- {
+ for (i = 1; h->delayed_pic[i] && !h->delayed_pic[i]->f.key_frame && !h->delayed_pic[i]->mmco_reset; i++)
if(h->delayed_pic[i]->poc < out->poc){
out = h->delayed_pic[i];
out_idx = i;
}
- }
- if (s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->f.key_frame || h->mmco_reset))
- h->next_outputed_poc = INT_MIN;
- out_of_order = !out->f.key_frame && !h->mmco_reset && (out->poc < h->next_outputed_poc);
-
- if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
- { }
- else if (out_of_order && pics-1 == s->avctx->has_b_frames &&
- s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) {
- if (invalid + cnt < MAX_DELAYED_PIC_COUNT) {
- s->avctx->has_b_frames = FFMAX(s->avctx->has_b_frames, cnt);
- }
- s->low_delay = 0;
- } else if (s->low_delay &&
- ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2) ||
- cur->f.pict_type == AV_PICTURE_TYPE_B)) {
- s->low_delay = 0;
- s->avctx->has_b_frames++;
- }
+ if (s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->f.key_frame || h->delayed_pic[0]->mmco_reset))
+ h->next_outputed_poc= INT_MIN;
+ out_of_order = out->poc < h->next_outputed_poc;
- if(pics > s->avctx->has_b_frames){
+ if(out_of_order || pics > s->avctx->has_b_frames){
out->f.reference &= ~DELAYED_PIC_REF;
out->owner2 = s; // for frame threading, the owner must be the second field's thread
// or else the first thread can release the picture and reuse it unsafely
for(i=out_idx; h->delayed_pic[i]; i++)
h->delayed_pic[i] = h->delayed_pic[i+1];
}
- memmove(h->last_pocs, &h->last_pocs[1], sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1));
- h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = cur->poc;
if(!out_of_order && pics > s->avctx->has_b_frames){
h->next_output_pic = out;
- if (out->mmco_reset) {
- if (out_idx > 0) {
- h->next_outputed_poc = out->poc;
- h->delayed_pic[out_idx - 1]->mmco_reset = out->mmco_reset;
- } else {
- h->next_outputed_poc = INT_MIN;
- }
- } else {
- if (out_idx == 0 && pics > 1 && h->delayed_pic[0]->f.key_frame) {
- h->next_outputed_poc = INT_MIN;
- } else {
- h->next_outputed_poc = out->poc;
- }
- }
- h->mmco_reset = 0;
+ if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f.key_frame || h->delayed_pic[0]->mmco_reset)) {
+ h->next_outputed_poc = INT_MIN;
+ } else
+ h->next_outputed_poc = out->poc;
}else{
- av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
+ av_log(s->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
+ }
+
+ if (h->next_output_pic && h->next_output_pic->sync) {
+ h->sync |= 2;
}
if (setup_finished)
AV_COPY128(top_border+16, src_cb + 15*uvlinesize);
AV_COPY128(top_border+32, src_cr + 15*uvlinesize);
}
- } else if(chroma422) {
+ } else if(chroma422){
if (pixel_shift) {
AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
AV_COPY128(top_border+48, src_cr + 15*uvlinesize);
}
if (!simple && IS_INTRA_PCM(mb_type)) {
+ const int bit_depth = h->sps.bit_depth_luma;
if (pixel_shift) {
- const int bit_depth = h->sps.bit_depth_luma;
int j;
GetBitContext gb;
init_get_bits(&gb, (uint8_t*)h->mb, 384*bit_depth);
if (!h->sps.chroma_format_idc) {
for (i = 0; i < block_h; i++) {
uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
- for (j = 0; j < 8; j++) {
- tmp_cb[j] = 1 << (bit_depth - 1);
- }
- }
- for (i = 0; i < block_h; i++) {
uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
for (j = 0; j < 8; j++) {
- tmp_cr[j] = 1 << (bit_depth - 1);
+ tmp_cb[j] = tmp_cr[j] = 1 << (bit_depth - 1);
}
}
} else {
}
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
if (!h->sps.chroma_format_idc) {
- for (i = 0; i < block_h; i++) {
- memset(dest_cb + i*uvlinesize, 128, 8);
- memset(dest_cr + i*uvlinesize, 128, 8);
+ for (i=0; i<8; i++) {
+ memset(dest_cb + i*uvlinesize, 1 << (bit_depth - 1), 8);
+ memset(dest_cr + i*uvlinesize, 1 << (bit_depth - 1), 8);
}
} else {
- for (i = 0; i < block_h; i++) {
+ for (i=0; i<block_h; i++) {
memcpy(dest_cb + i*uvlinesize, h->mb + 128 + i*4, 8);
memcpy(dest_cr + i*uvlinesize, h->mb + 160 + i*4, 8);
}
* instantaneous decoder refresh.
*/
static void idr(H264Context *h){
+ int i;
ff_h264_remove_all_refs(h);
h->prev_frame_num= 0;
h->prev_frame_num_offset= 0;
- h->prev_poc_msb=
+ h->prev_poc_msb= 1<<16;
h->prev_poc_lsb= 0;
+ for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
+ h->last_pocs[i] = INT_MIN;
}
/* forget old pics after a seek */
static void flush_dpb(AVCodecContext *avctx){
H264Context *h= avctx->priv_data;
int i;
- for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
+ for(i=0; i<=MAX_DELAYED_PIC_COUNT; i++) {
if(h->delayed_pic[i])
h->delayed_pic[i]->f.reference = 0;
h->delayed_pic[i]= NULL;
}
- for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
- h->last_pocs[i] = INT_MIN;
h->outputed_poc=h->next_outputed_poc= INT_MIN;
h->prev_interlaced_frame = 1;
idr(h);
+ h->prev_frame_num= -1;
if(h->s.current_picture_ptr)
h->s.current_picture_ptr->f.reference = 0;
h->s.first_field= 0;
ff_h264_reset_sei(h);
ff_mpeg_flush(avctx);
+ h->recovery_frame= -1;
+ h->sync= 0;
}
static int init_poc(H264Context *h){
s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
}
- first_mb_in_slice= get_ue_golomb(&s->gb);
+ first_mb_in_slice= get_ue_golomb_long(&s->gb);
if(first_mb_in_slice == 0){ //FIXME better field boundary detection
if(h0->current_slice && FIELD_PICTURE){
s->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
- s->width = 16*s->mb_width - (2>>CHROMA444)*FFMIN(h->sps.crop_right, (8<<CHROMA444)-1);
- if(h->sps.frame_mbs_only_flag)
- s->height= 16*s->mb_height - (1<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
- else
- s->height= 16*s->mb_height - (2<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
+ s->width = 16*s->mb_width;
+ s->height= 16*s->mb_height;
if (s->context_initialized
- && ( s->width != s->avctx->width || s->height != s->avctx->height
+ && ( s->width != s->avctx->coded_width || s->height != s->avctx->coded_height
+ || s->avctx->bits_per_raw_sample != h->sps.bit_depth_luma
+ || h->cur_chroma_format_idc != h->sps.chroma_format_idc
|| av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) {
- if(h != h0) {
- av_log_missing_feature(s->avctx, "Width/height changing with threads is", 0);
+ if(h != h0 || (s->avctx->active_thread_type & FF_THREAD_FRAME)) {
+ av_log_missing_feature(s->avctx, "Width/height/bit depth/chroma idc changing with threads is", 0);
return -1; // width / height changed during parallelized decoding
}
free_tables(h, 0);
flush_dpb(s->avctx);
MPV_common_end(s);
+ h->list_count = 0;
}
if (!s->context_initialized) {
if (h != h0) {
av_log(h->s.avctx, AV_LOG_ERROR, "Cannot (re-)initialize context during parallel decoding.\n");
return -1;
}
-
avcodec_set_dimensions(s->avctx, s->width, s->height);
+ s->avctx->width -= (2>>CHROMA444)*FFMIN(h->sps.crop_right, (8<<CHROMA444)-1);
+ s->avctx->height -= (1<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1) * (2 - h->sps.frame_mbs_only_flag);
s->avctx->sample_aspect_ratio= h->sps.sar;
av_assert0(s->avctx->sample_aspect_ratio.den);
+ if (s->avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
+ h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
+ if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10 &&
+ (h->sps.bit_depth_luma != 9 || !CHROMA422)) {
+ s->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
+ h->cur_chroma_format_idc = h->sps.chroma_format_idc;
+ h->pixel_shift = h->sps.bit_depth_luma > 8;
+
+ ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
+ ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
+ s->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
+ dsputil_init(&s->dsp, s->avctx);
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d chroma_idc: %d\n",
+ h->sps.bit_depth_luma, h->sps.chroma_format_idc);
+ return -1;
+ }
+ }
+
if(h->sps.video_signal_type_present_flag){
- s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+ s->avctx->color_range = h->sps.full_range>0 ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
if(h->sps.colour_description_present_flag){
s->avctx->color_primaries = h->sps.color_primaries;
s->avctx->color_trc = h->sps.color_trc;
break;
default:
if (CHROMA444){
+ s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ444P : PIX_FMT_YUV444P;
if (s->avctx->colorspace == AVCOL_SPC_RGB) {
- s->avctx->pix_fmt = PIX_FMT_GBRP;
- } else
- s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ444P : PIX_FMT_YUV444P;
+ s->avctx->pix_fmt = PIX_FMT_GBR24P;
+ av_log(h->s.avctx, AV_LOG_DEBUG, "Detected GBR colorspace.\n");
+ } else if (s->avctx->colorspace == AVCOL_SPC_YCGCO) {
+ av_log(h->s.avctx, AV_LOG_WARNING, "Detected unsupported YCgCo colorspace.\n");
+ }
} else if (CHROMA422) {
s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ422P : PIX_FMT_YUV422P;
}else{
c->sps = h->sps;
c->pps = h->pps;
c->pixel_shift = h->pixel_shift;
+ c->cur_chroma_format_idc = h->cur_chroma_format_idc;
init_scan_tables(c);
clone_tables(c, h, i);
}
if(h->sps.frame_mbs_only_flag){
s->picture_structure= PICT_FRAME;
}else{
+ if(!h->sps.direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B){
+ av_log(h->s.avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
+ return -1;
+ }
if(get_bits1(&s->gb)) { //field_pic_flag
s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
} else {
if(h0->current_slice == 0){
// Shorten frame num gaps so we don't have to allocate reference frames just to throw them away
- if(h->frame_num != h->prev_frame_num) {
+ if(h->frame_num != h->prev_frame_num && h->prev_frame_num >= 0) {
int unwrap_prev_frame_num = h->prev_frame_num, max_frame_num = 1<<h->sps.log2_max_frame_num;
if (unwrap_prev_frame_num > h->frame_num) unwrap_prev_frame_num -= max_frame_num;
}
}
- while(h->frame_num != h->prev_frame_num &&
+ while(h->frame_num != h->prev_frame_num && h->prev_frame_num >= 0 &&
h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
s0->first_field = FIELD_PICTURE;
} else {
- if (h->nal_ref_idc &&
- s0->current_picture_ptr->f.reference &&
- s0->current_picture_ptr->frame_num != h->frame_num) {
+ if (s0->current_picture_ptr->frame_num != h->frame_num) {
/*
- * This and previous field were reference, but had
+ * This and previous field had
* different frame_nums. Consider this field first in
* pair. Throw away previous field except for reference
* purposes.
h->ref_count[1]= h->pps.ref_count[1];
if(h->slice_type_nos != AV_PICTURE_TYPE_I){
+ unsigned max= (16<<(s->picture_structure != PICT_FRAME))-1;
if(h->slice_type_nos == AV_PICTURE_TYPE_B){
h->direct_spatial_mv_pred= get_bits1(&s->gb);
}
if(h->slice_type_nos==AV_PICTURE_TYPE_B)
h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
- if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
- h->ref_count[0]= h->ref_count[1]= 1;
- return -1;
- }
+ }
+ if(h->ref_count[0]-1 > max || h->ref_count[1]-1 > max){
+ av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
+ h->ref_count[0]= h->ref_count[1]= 1;
+ return -1;
}
if(h->slice_type_nos == AV_PICTURE_TYPE_B)
h->list_count= 2;
else
h->list_count= 1;
}else
- h->list_count= 0;
+ h->ref_count[1]= h->ref_count[0]= h->list_count= 0;
if(!default_ref_list_done){
ff_h264_fill_default_ref_list(h);
h0->last_slice_type = slice_type;
h->slice_num = ++h0->current_slice;
- if(h->slice_num >= MAX_SLICES){
- av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
+
+ if(h->slice_num)
+ h0->slice_row[(h->slice_num-1)&(MAX_SLICES-1)]= s->resync_mb_y;
+ if ( h0->slice_row[h->slice_num&(MAX_SLICES-1)] + 3 >= s->resync_mb_y
+ && h0->slice_row[h->slice_num&(MAX_SLICES-1)] <= s->resync_mb_y
+ && h->slice_num >= MAX_SLICES) {
+ //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
+ av_log(s->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", h->slice_num, MAX_SLICES);
}
for(j=0; j<2; j++){
if(s->mb_y >= s->mb_height){
tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
- if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
+ if( get_bits_count(&s->gb) == s->gb.size_in_bits
+ || get_bits_count(&s->gb) < s->gb.size_in_bits && !(s->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END&part_mask);
return 0;
hx = h->thread_context[i];
hx->s.err_recognition = avctx->err_recognition;
hx->s.error_count = 0;
+ hx->x264_build= h->x264_build;
}
avctx->execute(avctx, decode_slice,
int nals_needed=0; ///< number of NALs that need decoding before the next frame thread starts
int nal_index;
+ h->nal_unit_type= 0;
+
+ if(!s->slice_context_count)
+ s->slice_context_count= 1;
h->max_contexts = s->slice_context_count;
+
if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
h->current_slice = 0;
if (!s->first_field)
s->workaround_bugs |= FF_BUG_TRUNCATED;
if(!(s->workaround_bugs & FF_BUG_TRUNCATED)){
- while(ptr[dst_length - 1] == 0 && dst_length > 0)
+ while(dst_length > 0 && ptr[dst_length - 1] == 0)
dst_length--;
}
bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1));
if(s->avctx->debug&FF_DEBUG_STARTCODE){
- av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", hx->nal_unit_type, buf_index, buf_size, dst_length);
+ av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d/%d at %d/%d length %d pass %d\n", hx->nal_unit_type, hx->nal_ref_idc, buf_index, buf_size, dst_length, pass);
}
if (h->is_avc && (nalsize != consumed) && nalsize){
- // set trailing bits in the last partial byte to zero
- if (bit_length & 7)
- ptr[bit_length >> 3] = ptr[bit_length >> 3] & (0xff << 8 - (bit_length & 7));
av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
}
switch(hx->nal_unit_type){
case NAL_IDR_SLICE:
if (h->nal_unit_type != NAL_IDR_SLICE) {
- av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
+ av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices\n");
return -1;
}
idr(h); // FIXME ensure we don't lose some frames if there is reordering
if((err = decode_slice_header(hx, h)))
break;
+ if ( h->sei_recovery_frame_cnt >= 0
+ && ( h->recovery_frame<0
+ || ((h->recovery_frame - h->frame_num) & ((1 << h->sps.log2_max_frame_num)-1)) > h->sei_recovery_frame_cnt)) {
+ h->recovery_frame = (h->frame_num + h->sei_recovery_frame_cnt) %
+ (1 << h->sps.log2_max_frame_num);
+ }
+
s->current_picture_ptr->f.key_frame |=
- (hx->nal_unit_type == NAL_IDR_SLICE) ||
- (h->sei_recovery_frame_cnt >= 0);
+ (hx->nal_unit_type == NAL_IDR_SLICE);
+
+ if (h->recovery_frame == h->frame_num) {
+ s->current_picture_ptr->sync |= 1;
+ h->recovery_frame = -1;
+ }
+
+ h->sync |= !!s->current_picture_ptr->f.key_frame;
+ h->sync |= 3*!!(s->flags2 & CODEC_FLAG2_SHOW_ALL);
+ s->current_picture_ptr->sync |= h->sync;
if (h->current_slice == 1) {
if(!(s->flags2 & CODEC_FLAG2_CHUNKS)) {
break;
case NAL_SPS:
init_get_bits(&s->gb, ptr, bit_length);
- ff_h264_decode_seq_parameter_set(h);
+ if(ff_h264_decode_seq_parameter_set(h) < 0 && (h->is_avc ? (nalsize != consumed) && nalsize : 1)){
+ av_log(h->s.avctx, AV_LOG_DEBUG, "SPS decoding failure, trying alternative mode\n");
+ if(h->is_avc) av_assert0(next_avc - buf_index + consumed == nalsize);
+ init_get_bits(&s->gb, &buf[buf_index + 1 - consumed], 8*(next_avc - buf_index + consumed));
+ ff_h264_decode_seq_parameter_set(h);
+ }
if (s->flags& CODEC_FLAG_LOW_DELAY ||
(h->sps.bitstream_restriction_flag && !h->sps.num_reorder_frames))
if(avctx->has_b_frames < 2)
avctx->has_b_frames= !s->low_delay;
-
- if (avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
- h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
- if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10) {
- avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
- h->cur_chroma_format_idc = h->sps.chroma_format_idc;
- h->pixel_shift = h->sps.bit_depth_luma > 8;
-
- ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
- ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
- s->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
- dsputil_init(&s->dsp, s->avctx);
- } else {
- av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);
- return -1;
- }
- }
break;
case NAL_PPS:
init_get_bits(&s->gb, ptr, bit_length);
MpegEncContext *s = &h->s;
AVFrame *pict = data;
int buf_index = 0;
+ Picture *out;
+ int i, out_idx;
s->flags= avctx->flags;
s->flags2= avctx->flags2;
/* end of stream, output what is still in the buffers */
- out:
if (buf_size == 0) {
- Picture *out;
- int i, out_idx;
+ out:
s->current_picture_ptr = NULL;
return buf_index;
}
+ if(h->is_avc && buf_size >= 9 && buf[0]==1 && buf[2]==0 && (buf[4]&0xFC)==0xFC && (buf[5]&0x1F) && buf[8]==0x67){
+ int cnt= buf[5]&0x1f;
+ uint8_t *p= buf+6;
+ while(cnt--){
+ int nalsize= AV_RB16(p) + 2;
+ if(nalsize > buf_size - (p-buf) || p[2]!=0x67)
+ goto not_extra;
+ p += nalsize;
+ }
+ cnt = *(p++);
+ if(!cnt)
+ goto not_extra;
+ while(cnt--){
+ int nalsize= AV_RB16(p) + 2;
+ if(nalsize > buf_size - (p-buf) || p[2]!=0x68)
+ goto not_extra;
+ p += nalsize;
+ }
+
+ return ff_h264_decode_extradata(h, buf, buf_size);
+ }
+not_extra:
buf_index=decode_nal_units(h, buf, buf_size);
if(buf_index < 0)
return -1;
if (!s->current_picture_ptr && h->nal_unit_type == NAL_END_SEQUENCE) {
- buf_size = 0;
+ av_assert0(buf_index <= buf_size);
goto out;
}
if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
- if (avctx->skip_frame >= AVDISCARD_NONREF)
- return 0;
+ if (avctx->skip_frame >= AVDISCARD_NONREF ||
+ buf_size >= 4 && !memcmp("Q264", buf, 4))
+ return buf_size;
av_log(avctx, AV_LOG_ERROR, "no frame!\n");
return -1;
}
field_end(h, 0);
- if (!h->next_output_pic) {
- /* Wait for second field. */
- *data_size = 0;
-
- } else {
- *data_size = sizeof(AVFrame);
- *pict = *(AVFrame*)h->next_output_pic;
+ *data_size = 0; /* Wait for second field. */
+ if (h->next_output_pic && (h->next_output_pic->sync || h->sync>1)) {
+ *data_size = sizeof(AVFrame);
+ *pict = *(AVFrame*)h->next_output_pic;
}
}
#undef random
#define COUNT 8000
#define SIZE (COUNT*40)
+extern AVCodec ff_h264_decoder;
int main(void){
int i;
uint8_t temp[SIZE];
DSPContext dsp;
AVCodecContext avctx;
- avctx.av_class = avcodec_get_class();
+ avcodec_get_context_defaults3(&avctx, &ff_h264_decoder);
+
dsputil_init(&dsp, &avctx);
init_put_bits(&pb, temp, SIZE);
for(i=0; i<COUNT; i++){
int j, s = show_bits(&gb, 24);
- START_TIMER
+ {START_TIMER
j= get_ue_golomb(&gb);
if(j != i){
printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
// return -1;
}
- STOP_TIMER("get_ue_golomb");
+ STOP_TIMER("get_ue_golomb");}
}
for(i=0; i<COUNT; i++){
int j, s = show_bits(&gb, 24);
- START_TIMER
+ {START_TIMER
j= get_se_golomb(&gb);
if(j != i - COUNT/2){
printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
// return -1;
}
- STOP_TIMER("get_se_golomb");
+ STOP_TIMER("get_se_golomb");}
}
printf("Testing RBSP\n");
H264Context *h = avctx->priv_data;
MpegEncContext *s = &h->s;
+ ff_h264_remove_all_refs(h);
ff_h264_free_context(h);
MPV_common_end(s);
{ FF_PROFILE_UNKNOWN },
};
+static const AVOption h264_options[] = {
+ {"is_avc", "is avc", offsetof(H264Context, is_avc), FF_OPT_TYPE_INT, {.dbl = 0}, 0, 1, 0},
+ {"nal_length_size", "nal_length_size", offsetof(H264Context, nal_length_size), FF_OPT_TYPE_INT, {.dbl = 0}, 0, 4, 0},
+ {NULL}
+};
+
+static const AVClass h264_class = {
+ "H264 Decoder",
+ av_default_item_name,
+ h264_options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+static const AVClass h264_vdpau_class = {
+ "H264 VDPAU Decoder",
+ av_default_item_name,
+ h264_options,
+ LIBAVUTIL_VERSION_INT,
+};
+
AVCodec ff_h264_decoder = {
.name = "h264",
.type = AVMEDIA_TYPE_VIDEO,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(decode_update_thread_context),
.profiles = NULL_IF_CONFIG_SMALL(profiles),
+ .priv_class = &h264_class,
};
#if CONFIG_H264_VDPAU_DECODER
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE},
.profiles = NULL_IF_CONFIG_SMALL(profiles),
+ .priv_class = &h264_vdpau_class,
};
#endif
projects / ffmpeg / blobdiff