* 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/avassert.h"
#include "libavutil/display.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "cabac_functions.h"
#include "error_resilience.h"
#include "avcodec.h"
-#include "golomb_legacy.h"
#include "h264.h"
#include "h264dec.h"
#include "h2645_parse.h"
#include "h264chroma.h"
#include "h264_mvpred.h"
#include "h264_ps.h"
+#include "golomb.h"
#include "mathops.h"
#include "me_cmp.h"
#include "mpegutils.h"
#include "profiles.h"
#include "rectangle.h"
#include "thread.h"
-
-#include <assert.h>
+#include "vdpau_compat.h"
const uint16_t ff_h264_mb_sizes[4] = { 256, 384, 512, 768 };
+int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx)
+{
+ H264Context *h = avctx->priv_data;
+ return h && h->ps.sps ? h->ps.sps->num_reorder_frames : 0;
+}
+
static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
int (*mv)[2][4][2],
int mb_x, int mb_y, int mb_intra, int mb_skipped)
sl->mb_y = mb_y;
sl->mb_xy = mb_x + mb_y * h->mb_stride;
memset(sl->non_zero_count_cache, 0, sizeof(sl->non_zero_count_cache));
- assert(ref >= 0);
+ av_assert1(ref >= 0);
/* FIXME: It is possible albeit uncommon that slice references
* differ between slices. We take the easy approach and ignore
* it for now. If this turns out to have any relevance in
* practice then correct remapping should be added. */
if (ref >= sl->ref_count[0])
ref = 0;
+ if (!sl->ref_list[0][ref].data[0]) {
+ av_log(h->avctx, AV_LOG_DEBUG, "Reference not available for error concealing\n");
+ ref = 0;
+ }
+ if ((sl->ref_list[0][ref].reference&3) != 3) {
+ av_log(h->avctx, AV_LOG_DEBUG, "Reference invalid\n");
+ return;
+ }
fill_rectangle(&h->cur_pic.ref_index[0][4 * sl->mb_xy],
2, 2, 2, ref, 1);
fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8,
pack16to32((*mv)[0][0][0], (*mv)[0][0][1]), 4);
- assert(!FRAME_MBAFF(h));
+ sl->mb_mbaff =
+ sl->mb_field_decoding_flag = 0;
ff_h264_hl_decode_mb(h, &h->slice_ctx[0]);
}
int ff_h264_alloc_tables(H264Context *h)
{
const int big_mb_num = h->mb_stride * (h->mb_height + 1);
- const int row_mb_num = h->mb_stride * 2 * h->nb_slice_ctx;
+ const int row_mb_num = 2*h->mb_stride*FFMAX(h->nb_slice_ctx, 1);
int x, y;
- FF_ALLOCZ_OR_GOTO(h->avctx, h->intra4x4_pred_mode,
- row_mb_num * 8 * sizeof(uint8_t), fail)
+ FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->intra4x4_pred_mode,
+ row_mb_num, 8 * sizeof(uint8_t), fail)
h->slice_ctx[0].intra4x4_pred_mode = h->intra4x4_pred_mode;
FF_ALLOCZ_OR_GOTO(h->avctx, h->non_zero_count,
big_mb_num * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(h->avctx, h->chroma_pred_mode_table,
big_mb_num * sizeof(uint8_t), fail)
- FF_ALLOCZ_OR_GOTO(h->avctx, h->mvd_table[0],
- 16 * row_mb_num * sizeof(uint8_t), fail);
- FF_ALLOCZ_OR_GOTO(h->avctx, h->mvd_table[1],
- 16 * row_mb_num * sizeof(uint8_t), fail);
+ FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->mvd_table[0],
+ row_mb_num, 16 * sizeof(uint8_t), fail);
+ FF_ALLOCZ_ARRAY_OR_GOTO(h->avctx, h->mvd_table[1],
+ row_mb_num, 16 * sizeof(uint8_t), fail);
h->slice_ctx[0].mvd_table[0] = h->mvd_table[0];
h->slice_ctx[0].mvd_table[1] = h->mvd_table[1];
sl->ref_cache[1][scan8[7] + 1] =
sl->ref_cache[1][scan8[13] + 1] = PART_NOT_AVAILABLE;
+ if (sl != h->slice_ctx) {
+ memset(er, 0, sizeof(*er));
+ } else
if (CONFIG_ERROR_RESILIENCE) {
+
/* init ER */
er->avctx = h->avctx;
er->decode_mb = h264_er_decode_mb;
mb_array_size * sizeof(uint8_t), fail);
FF_ALLOC_OR_GOTO(h->avctx, er->er_temp_buffer,
- h->mb_height * h->mb_stride, fail);
+ h->mb_height * h->mb_stride * (4*sizeof(int) + 1), fail);
FF_ALLOCZ_OR_GOTO(h->avctx, sl->dc_val_base,
yc_size * sizeof(int16_t), fail);
int i;
h->avctx = avctx;
+ h->cur_chroma_format_idc = -1;
h->width_from_caller = avctx->width;
h->height_from_caller = avctx->height;
h->poc.prev_poc_msb = 1 << 16;
h->recovery_frame = -1;
h->frame_recovered = 0;
+ h->poc.prev_frame_num = -1;
+ h->sei.frame_packing.frame_packing_arrangement_cancel_flag = -1;
+ h->sei.unregistered.x264_build = -1;
h->next_outputed_poc = INT_MIN;
for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
if (!h->cur_pic.f)
return AVERROR(ENOMEM);
- h->output_frame = av_frame_alloc();
- if (!h->output_frame)
+ h->last_pic_for_ec.f = av_frame_alloc();
+ if (!h->last_pic_for_ec.f)
return AVERROR(ENOMEM);
for (i = 0; i < h->nb_slice_ctx; i++)
H264Context *h = avctx->priv_data;
int i;
+ ff_h264_remove_all_refs(h);
ff_h264_free_tables(h);
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
ff_h264_unref_picture(h, &h->DPB[i]);
av_frame_free(&h->DPB[i].f);
}
+ memset(h->delayed_pic, 0, sizeof(h->delayed_pic));
h->cur_pic_ptr = NULL;
av_freep(&h->slice_ctx);
h->nb_slice_ctx = 0;
- for (i = 0; i < MAX_SPS_COUNT; i++)
- av_buffer_unref(&h->ps.sps_list[i]);
-
- for (i = 0; i < MAX_PPS_COUNT; i++)
- av_buffer_unref(&h->ps.pps_list[i]);
+ ff_h264_sei_uninit(&h->sei);
+ ff_h264_ps_uninit(&h->ps);
ff_h2645_packet_uninit(&h->pkt);
ff_h264_unref_picture(h, &h->cur_pic);
av_frame_free(&h->cur_pic.f);
- av_frame_free(&h->output_frame);
+ ff_h264_unref_picture(h, &h->last_pic_for_ec);
+ av_frame_free(&h->last_pic_for_ec.f);
return 0;
}
return AVERROR_UNKNOWN;
}
- if (avctx->ticks_per_frame == 1)
- h->avctx->framerate.num *= 2;
+ if (avctx->ticks_per_frame == 1) {
+ if(h->avctx->time_base.den < INT_MAX/2) {
+ h->avctx->time_base.den *= 2;
+ } else
+ h->avctx->time_base.num /= 2;
+ }
avctx->ticks_per_frame = 2;
if (avctx->extradata_size > 0 && avctx->extradata) {
- ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size,
- &h->ps, &h->is_avc, &h->nal_length_size,
- avctx->err_recognition, avctx);
- if (ret < 0) {
- h264_decode_end(avctx);
- return ret;
- }
+ ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size,
+ &h->ps, &h->is_avc, &h->nal_length_size,
+ avctx->err_recognition, avctx);
+ if (ret < 0) {
+ h264_decode_end(avctx);
+ return ret;
+ }
}
if (h->ps.sps && h->ps.sps->bitstream_restriction_flag &&
avctx->internal->allocate_progress = 1;
- if (h->enable_er) {
+ ff_h264_flush_change(h);
+
+ if (h->enable_er < 0 && (avctx->active_thread_type & FF_THREAD_SLICE))
+ h->enable_er = 0;
+
+ if (h->enable_er && (avctx->active_thread_type & FF_THREAD_SLICE)) {
av_log(avctx, AV_LOG_WARNING,
- "Error resilience is enabled. It is unsafe and unsupported and may crash. "
+ "Error resilience with slice threads is enabled. It is unsafe and unsupported and may crash. "
"Use it at your own risk\n");
}
return 0;
}
+#if HAVE_THREADS
static int decode_init_thread_copy(AVCodecContext *avctx)
{
H264Context *h = avctx->priv_data;
return 0;
}
+#endif
/**
* instantaneous decoder refresh.
*/
static void idr(H264Context *h)
{
+ int i;
ff_h264_remove_all_refs(h);
h->poc.prev_frame_num =
- h->poc.prev_frame_num_offset =
- h->poc.prev_poc_msb =
+ h->poc.prev_frame_num_offset = 0;
+ h->poc.prev_poc_msb = 1<<16;
h->poc.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 */
void ff_h264_flush_change(H264Context *h)
{
- int i;
- for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
- h->last_pocs[i] = INT_MIN;
+ int i, j;
+
h->next_outputed_poc = INT_MIN;
h->prev_interlaced_frame = 1;
idr(h);
- if (h->cur_pic_ptr)
+
+ h->poc.prev_frame_num = -1;
+ if (h->cur_pic_ptr) {
h->cur_pic_ptr->reference = 0;
+ for (j=i=0; h->delayed_pic[i]; i++)
+ if (h->delayed_pic[i] != h->cur_pic_ptr)
+ h->delayed_pic[j++] = h->delayed_pic[i];
+ h->delayed_pic[j] = NULL;
+ }
+ ff_h264_unref_picture(h, &h->last_pic_for_ec);
+
h->first_field = 0;
h->recovery_frame = -1;
h->frame_recovered = 0;
+ h->current_slice = 0;
+ h->mmco_reset = 1;
}
/* forget old pics after a seek */
static int get_last_needed_nal(H264Context *h)
{
int nals_needed = 0;
+ int first_slice = 0;
int i, ret;
for (i = 0; i < h->pkt.nb_nals; i++) {
break;
}
- if (!get_ue_golomb(&gb))
+ if (!get_ue_golomb_long(&gb) || // first_mb_in_slice
+ !first_slice ||
+ first_slice != nal->type)
nals_needed = i;
+ if (!first_slice)
+ first_slice = nal->type;
}
}
return nals_needed;
}
+static void debug_green_metadata(const H264SEIGreenMetaData *gm, void *logctx)
+{
+ av_log(logctx, AV_LOG_DEBUG, "Green Metadata Info SEI message\n");
+ av_log(logctx, AV_LOG_DEBUG, " green_metadata_type: %d\n", gm->green_metadata_type);
+
+ if (gm->green_metadata_type == 0) {
+ av_log(logctx, AV_LOG_DEBUG, " green_metadata_period_type: %d\n", gm->period_type);
+
+ if (gm->period_type == 2)
+ av_log(logctx, AV_LOG_DEBUG, " green_metadata_num_seconds: %d\n", gm->num_seconds);
+ else if (gm->period_type == 3)
+ av_log(logctx, AV_LOG_DEBUG, " green_metadata_num_pictures: %d\n", gm->num_pictures);
+
+ av_log(logctx, AV_LOG_DEBUG, " SEI GREEN Complexity Metrics: %f %f %f %f\n",
+ (float)gm->percent_non_zero_macroblocks/255,
+ (float)gm->percent_intra_coded_macroblocks/255,
+ (float)gm->percent_six_tap_filtering/255,
+ (float)gm->percent_alpha_point_deblocking_instance/255);
+
+ } else if (gm->green_metadata_type == 1) {
+ av_log(logctx, AV_LOG_DEBUG, " xsd_metric_type: %d\n", gm->xsd_metric_type);
+
+ if (gm->xsd_metric_type == 0)
+ av_log(logctx, AV_LOG_DEBUG, " xsd_metric_value: %f\n",
+ (float)gm->xsd_metric_value/100);
+ }
+}
+
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
{
AVCodecContext *const avctx = h->avctx;
int nals_needed = 0; ///< number of NALs that need decoding before the next frame thread starts
+ int idr_cleared=0;
int i, ret = 0;
+ h->has_slice = 0;
+ h->nal_unit_type= 0;
+
if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) {
h->current_slice = 0;
- h->field_started = 0;
if (!h->first_field)
h->cur_pic_ptr = NULL;
ff_h264_sei_uninit(&h->sei);
}
+ if (h->nal_length_size == 4) {
+ if (buf_size > 8 && AV_RB32(buf) == 1 && AV_RB32(buf+5) > (unsigned)buf_size) {
+ h->is_avc = 0;
+ }else if(buf_size > 3 && AV_RB32(buf) > 1 && AV_RB32(buf) <= (unsigned)buf_size)
+ h->is_avc = 1;
+ }
+
ret = ff_h2645_packet_split(&h->pkt, buf, buf_size, avctx, h->is_avc,
- h->nal_length_size, avctx->codec_id);
+ h->nal_length_size, avctx->codec_id, avctx->flags2 & AV_CODEC_FLAG2_FAST);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR,
"Error splitting the input into NAL units.\n");
-
- /* There are samples in the wild with mp4-style extradata, but Annex B
- * data in the packets. If we fail parsing the packet as mp4, try it again
- * as Annex B. */
- if (h->is_avc && !(avctx->err_recognition & AV_EF_EXPLODE)) {
- int err = ff_h2645_packet_split(&h->pkt, buf, buf_size, avctx, 0, 0,
- avctx->codec_id);
- if (err >= 0) {
- av_log(avctx, AV_LOG_WARNING,
- "The stream seems to contain AVCC extradata with Annex B "
- "formatted data, which is invalid.");
- h->is_avc = 0;
- ret = 0;
- }
- }
-
- if (ret < 0)
- return ret;
+ return ret;
}
if (avctx->active_thread_type & FF_THREAD_FRAME)
nals_needed = get_last_needed_nal(h);
+ if (nals_needed < 0)
+ return nals_needed;
for (i = 0; i < h->pkt.nb_nals; i++) {
H2645NAL *nal = &h->pkt.nals[i];
err = 0;
switch (nal->type) {
case H264_NAL_IDR_SLICE:
- idr(h); // FIXME ensure we don't lose some frames if there is reordering
+ if ((nal->data[1] & 0xFC) == 0x98) {
+ av_log(h->avctx, AV_LOG_ERROR, "Invalid inter IDR frame\n");
+ h->next_outputed_poc = INT_MIN;
+ ret = -1;
+ goto end;
+ }
+ if(!idr_cleared) {
+ if (h->current_slice && (avctx->active_thread_type & FF_THREAD_SLICE)) {
+ av_log(h, AV_LOG_ERROR, "invalid mixed IDR / non IDR frames cannot be decoded in slice multithreading mode\n");
+ ret = AVERROR_INVALIDDATA;
+ goto end;
+ }
+ idr(h); // FIXME ensure we don't lose some frames if there is reordering
+ }
+ idr_cleared = 1;
+ h->has_recovery_point = 1;
case H264_NAL_SLICE:
- if ((err = ff_h264_queue_decode_slice(h, nal)))
+ h->has_slice = 1;
+
+ if ((err = ff_h264_queue_decode_slice(h, nal))) {
+ H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
+ sl->ref_count[0] = sl->ref_count[1] = 0;
break;
+ }
+
+ if (h->current_slice == 1) {
+ if (avctx->active_thread_type & FF_THREAD_FRAME &&
+ i >= nals_needed && !h->setup_finished && h->cur_pic_ptr) {
+ ff_thread_finish_setup(avctx);
+ h->setup_finished = 1;
+ }
- if (avctx->active_thread_type & FF_THREAD_FRAME &&
- i >= nals_needed && !h->setup_finished && h->cur_pic_ptr) {
- ff_thread_finish_setup(avctx);
- h->setup_finished = 1;
+ if (h->avctx->hwaccel &&
+ (ret = h->avctx->hwaccel->start_frame(h->avctx, buf, buf_size)) < 0)
+ goto end;
}
max_slice_ctx = avctx->hwaccel ? 1 : h->nb_slice_ctx;
if (h->nb_slice_ctx_queued == max_slice_ctx) {
- if (avctx->hwaccel) {
+ if (h->avctx->hwaccel) {
ret = avctx->hwaccel->decode_slice(avctx, nal->raw_data, nal->raw_size);
h->nb_slice_ctx_queued = 0;
} else
case H264_NAL_DPB:
case H264_NAL_DPC:
avpriv_request_sample(avctx, "data partitioning");
- ret = AVERROR(ENOSYS);
- goto end;
break;
case H264_NAL_SEI:
ret = ff_h264_sei_decode(&h->sei, &nal->gb, &h->ps, avctx);
+ h->has_recovery_point = h->has_recovery_point || h->sei.recovery_point.recovery_frame_cnt != -1;
+ if (avctx->debug & FF_DEBUG_GREEN_MD)
+ debug_green_metadata(&h->sei.green_metadata, h->avctx);
if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
goto end;
break;
- case H264_NAL_SPS:
- ret = ff_h264_decode_seq_parameter_set(&nal->gb, avctx, &h->ps);
- if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
- goto end;
+ case H264_NAL_SPS: {
+ GetBitContext tmp_gb = nal->gb;
+ if (ff_h264_decode_seq_parameter_set(&tmp_gb, avctx, &h->ps, 0) >= 0)
+ break;
+ av_log(h->avctx, AV_LOG_DEBUG,
+ "SPS decoding failure, trying again with the complete NAL\n");
+ init_get_bits8(&tmp_gb, nal->raw_data + 1, nal->raw_size - 1);
+ if (ff_h264_decode_seq_parameter_set(&tmp_gb, avctx, &h->ps, 0) >= 0)
+ break;
+ ff_h264_decode_seq_parameter_set(&nal->gb, avctx, &h->ps, 1);
break;
+ }
case H264_NAL_PPS:
ret = ff_h264_decode_picture_parameter_set(&nal->gb, avctx, &h->ps,
nal->size_bits);
ret = 0;
end:
+
+#if CONFIG_ERROR_RESILIENCE
+ /*
+ * FIXME: Error handling code does not seem to support interlaced
+ * when slices span multiple rows
+ * The ff_er_add_slice calls don't work right for bottom
+ * fields; they cause massive erroneous error concealing
+ * Error marking covers both fields (top and bottom).
+ * This causes a mismatched s->error_count
+ * and a bad error table. Further, the error count goes to
+ * INT_MAX when called for bottom field, because mb_y is
+ * past end by one (callers fault) and resync_mb_y != 0
+ * causes problems for the first MB line, too.
+ */
+ if (!FIELD_PICTURE(h) && h->current_slice &&
+ h->ps.sps == (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data &&
+ h->enable_er) {
+
+ H264SliceContext *sl = h->slice_ctx;
+ int use_last_pic = h->last_pic_for_ec.f->buf[0] && !sl->ref_count[0];
+
+ ff_h264_set_erpic(&sl->er.cur_pic, h->cur_pic_ptr);
+
+ if (use_last_pic) {
+ ff_h264_set_erpic(&sl->er.last_pic, &h->last_pic_for_ec);
+ sl->ref_list[0][0].parent = &h->last_pic_for_ec;
+ memcpy(sl->ref_list[0][0].data, h->last_pic_for_ec.f->data, sizeof(sl->ref_list[0][0].data));
+ memcpy(sl->ref_list[0][0].linesize, h->last_pic_for_ec.f->linesize, sizeof(sl->ref_list[0][0].linesize));
+ sl->ref_list[0][0].reference = h->last_pic_for_ec.reference;
+ } else if (sl->ref_count[0]) {
+ ff_h264_set_erpic(&sl->er.last_pic, sl->ref_list[0][0].parent);
+ } else
+ ff_h264_set_erpic(&sl->er.last_pic, NULL);
+
+ if (sl->ref_count[1])
+ ff_h264_set_erpic(&sl->er.next_pic, sl->ref_list[1][0].parent);
+
+ sl->er.ref_count = sl->ref_count[0];
+
+ ff_er_frame_end(&sl->er);
+ if (use_last_pic)
+ memset(&sl->ref_list[0][0], 0, sizeof(sl->ref_list[0][0]));
+ }
+#endif /* CONFIG_ERROR_RESILIENCE */
/* clean up */
- if (h->cur_pic_ptr && !h->droppable) {
+ if (h->cur_pic_ptr && !h->droppable && h->has_slice) {
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
h->picture_structure == PICT_BOTTOM_FIELD);
}
return pos;
}
+static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
+{
+ AVFrame *src = srcp->f;
+ int ret;
+
+ if (src->format == AV_PIX_FMT_VIDEOTOOLBOX && src->buf[0]->size == 1)
+ return AVERROR_EXTERNAL;
+
+ ret = av_frame_ref(dst, src);
+ if (ret < 0)
+ return ret;
+
+ av_dict_set(&dst->metadata, "stereo_mode", ff_h264_sei_stereo_mode(&h->sei.frame_packing), 0);
+
+ if (srcp->sei_recovery_frame_cnt == 0)
+ dst->key_frame = 1;
+
+ return 0;
+}
+
+static int is_extra(const uint8_t *buf, int buf_size)
+{
+ int cnt= buf[5]&0x1f;
+ const uint8_t *p= buf+6;
+ while(cnt--){
+ int nalsize= AV_RB16(p) + 2;
+ if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7)
+ return 0;
+ p += nalsize;
+ }
+ cnt = *(p++);
+ if(!cnt)
+ return 0;
+ while(cnt--){
+ int nalsize= AV_RB16(p) + 2;
+ if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 8)
+ return 0;
+ p += nalsize;
+ }
+ return 1;
+}
+
+static int finalize_frame(H264Context *h, AVFrame *dst, H264Picture *out, int *got_frame)
+{
+ int ret;
+
+ if (((h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) ||
+ (h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL) ||
+ out->recovered)) {
+
+ if (!h->avctx->hwaccel &&
+ (out->field_poc[0] == INT_MAX ||
+ out->field_poc[1] == INT_MAX)
+ ) {
+ int p;
+ AVFrame *f = out->f;
+ int field = out->field_poc[0] == INT_MAX;
+ uint8_t *dst_data[4];
+ int linesizes[4];
+ const uint8_t *src_data[4];
+
+ av_log(h->avctx, AV_LOG_DEBUG, "Duplicating field %d to fill missing\n", field);
+
+ for (p = 0; p<4; p++) {
+ dst_data[p] = f->data[p] + (field^1)*f->linesize[p];
+ src_data[p] = f->data[p] + field *f->linesize[p];
+ linesizes[p] = 2*f->linesize[p];
+ }
+
+ av_image_copy(dst_data, linesizes, src_data, linesizes,
+ f->format, f->width, f->height>>1);
+ }
+
+ ret = output_frame(h, dst, out);
+ if (ret < 0)
+ return ret;
+
+ *got_frame = 1;
+
+ if (CONFIG_MPEGVIDEO) {
+ ff_print_debug_info2(h->avctx, dst, NULL,
+ out->mb_type,
+ out->qscale_table,
+ out->motion_val,
+ NULL,
+ h->mb_width, h->mb_height, h->mb_stride, 1);
+ }
+ }
+
+ return 0;
+}
+
+static int send_next_delayed_frame(H264Context *h, AVFrame *dst_frame,
+ int *got_frame, int buf_index)
+{
+ int ret, i, out_idx;
+ H264Picture *out = h->delayed_pic[0];
+
+ h->cur_pic_ptr = NULL;
+ h->first_field = 0;
+
+ out_idx = 0;
+ 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;
+ }
+
+ for (i = out_idx; h->delayed_pic[i]; i++)
+ h->delayed_pic[i] = h->delayed_pic[i + 1];
+
+ if (out) {
+ out->reference &= ~DELAYED_PIC_REF;
+ ret = finalize_frame(h, dst_frame, out, got_frame);
+ if (ret < 0)
+ return ret;
+ }
+
+ return buf_index;
+}
+
static int h264_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
int buf_size = avpkt->size;
H264Context *h = avctx->priv_data;
AVFrame *pict = data;
- int buf_index = 0;
+ int buf_index;
int ret;
- const uint8_t *new_extradata;
- int new_extradata_size;
h->flags = avctx->flags;
h->setup_finished = 0;
h->nb_slice_ctx_queued = 0;
- /* end of stream, output what is still in the buffers */
-out:
- if (buf_size == 0) {
- H264Picture *out;
- int i, out_idx;
-
- h->cur_pic_ptr = NULL;
-
- // FIXME factorize this with the output code below
- out = h->delayed_pic[0];
- out_idx = 0;
- 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;
- }
+ ff_h264_unref_picture(h, &h->last_pic_for_ec);
- for (i = out_idx; h->delayed_pic[i]; i++)
- h->delayed_pic[i] = h->delayed_pic[i + 1];
-
- if (out) {
- ret = av_frame_ref(pict, out->f);
- if (ret < 0)
- return ret;
- *got_frame = 1;
- }
-
- return buf_index;
+ /* end of stream, output what is still in the buffers */
+ if (buf_size == 0)
+ return send_next_delayed_frame(h, pict, got_frame, 0);
+
+ if (h->is_avc && av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA, NULL)) {
+ int side_size;
+ uint8_t *side = av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
+ if (is_extra(side, side_size))
+ ff_h264_decode_extradata(side, side_size,
+ &h->ps, &h->is_avc, &h->nal_length_size,
+ avctx->err_recognition, avctx);
}
-
- new_extradata_size = 0;
- new_extradata = av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA,
- &new_extradata_size);
- if (new_extradata_size > 0 && new_extradata) {
- ret = ff_h264_decode_extradata(new_extradata, new_extradata_size,
- &h->ps, &h->is_avc, &h->nal_length_size,
- avctx->err_recognition, avctx);
- if (ret < 0)
- return ret;
+ if(h->is_avc && buf_size >= 9 && buf[0]==1 && buf[2]==0 && (buf[4]&0xFC)==0xFC && (buf[5]&0x1F) && buf[8]==0x67){
+ if (is_extra(buf, buf_size))
+ return ff_h264_decode_extradata(buf, buf_size,
+ &h->ps, &h->is_avc, &h->nal_length_size,
+ avctx->err_recognition, avctx);
}
buf_index = decode_nal_units(h, buf, buf_size);
return AVERROR_INVALIDDATA;
if (!h->cur_pic_ptr && h->nal_unit_type == H264_NAL_END_SEQUENCE) {
- buf_size = 0;
- goto out;
+ av_assert0(buf_index <= buf_size);
+ return send_next_delayed_frame(h, pict, got_frame, buf_index);
}
- if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) && !h->cur_pic_ptr) {
- if (avctx->skip_frame >= AVDISCARD_NONREF)
- return 0;
+ if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) && (!h->cur_pic_ptr || !h->has_slice)) {
+ 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 AVERROR_INVALIDDATA;
}
if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) ||
(h->mb_y >= h->mb_height && h->mb_height)) {
- if (h->field_started)
- ff_h264_field_end(h, &h->slice_ctx[0], 0);
+ if ((ret = ff_h264_field_end(h, &h->slice_ctx[0], 0)) < 0)
+ return ret;
- *got_frame = 0;
- if (h->output_frame->buf[0]) {
- ret = av_frame_ref(pict, h->output_frame);
- av_frame_unref(h->output_frame);
+ /* Wait for second field. */
+ if (h->next_output_pic) {
+ ret = finalize_frame(h, pict, h->next_output_pic, got_frame);
if (ret < 0)
return ret;
- *got_frame = 1;
}
}
- assert(pict->buf[0] || !*got_frame);
+ av_assert0(pict->buf[0] || !*got_frame);
+
+ ff_h264_unref_picture(h, &h->last_pic_for_ec);
return get_consumed_bytes(buf_index, buf_size);
}
#define OFFSET(x) offsetof(H264Context, x)
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption h264_options[] = {
- { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VD },
+ { "is_avc", "is avc", OFFSET(is_avc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0 },
+ { "nal_length_size", "nal_length_size", OFFSET(nal_length_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, 0 },
+ { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
{ NULL },
};
static const AVClass h264_class = {
- .class_name = "h264",
+ .class_name = "H264 Decoder",
.item_name = av_default_item_name,
.option = h264_options,
.version = LIBAVUTIL_VERSION_INT,
.profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
.priv_class = &h264_class,
};
+
+#if CONFIG_H264_VDPAU_DECODER && FF_API_VDPAU
+static const AVClass h264_vdpau_class = {
+ .class_name = "H264 VDPAU Decoder",
+ .item_name = av_default_item_name,
+ .option = h264_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_h264_vdpau_decoder = {
+ .name = "h264_vdpau",
+ .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_H264,
+ .priv_data_size = sizeof(H264Context),
+ .init = h264_decode_init,
+ .close = h264_decode_end,
+ .decode = h264_decode_frame,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HWACCEL_VDPAU,
+ .flush = flush_dpb,
+ .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_VDPAU_H264,
+ AV_PIX_FMT_NONE},
+ .profiles = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
+ .priv_class = &h264_vdpau_class,
+};
+#endif
projects / ffmpeg / blobdiff