[deb_ffmpeg.git] / ffmpeg / libavcodec / h264_picture.c

/*
 * H.26L/H.264/AVC/JVT/14496-10/... decoder
 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * 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.
 *
 * 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 FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
 * @file
 * H.264 / AVC / MPEG4 part10 codec.
 * @author Michael Niedermayer <michaelni@gmx.at>
 */

#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/timer.h"
#include "internal.h"
#include "cabac.h"
#include "cabac_functions.h"
#include "error_resilience.h"
#include "avcodec.h"
#include "h264.h"
#include "h264data.h"
#include "h264chroma.h"
#include "h264_mvpred.h"
#include "golomb.h"
#include "mathops.h"
#include "mpegutils.h"
#include "rectangle.h"
#include "thread.h"
#include "vdpau_internal.h"

void ff_h264_unref_picture(H264Context *h, H264Picture *pic)
{
    int off = offsetof(H264Picture, tf) + sizeof(pic->tf);
    int i;

    if (!pic->f.buf[0])
        return;

    ff_thread_release_buffer(h->avctx, &pic->tf);
    av_buffer_unref(&pic->hwaccel_priv_buf);

    av_buffer_unref(&pic->qscale_table_buf);
    av_buffer_unref(&pic->mb_type_buf);
    for (i = 0; i < 2; i++) {
        av_buffer_unref(&pic->motion_val_buf[i]);
        av_buffer_unref(&pic->ref_index_buf[i]);
    }

    memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
}

int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
{
    int ret, i;

    av_assert0(!dst->f.buf[0]);
    av_assert0(src->f.buf[0]);

    src->tf.f = &src->f;
    dst->tf.f = &dst->f;
    ret = ff_thread_ref_frame(&dst->tf, &src->tf);
    if (ret < 0)
        goto fail;

    dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
    dst->mb_type_buf      = av_buffer_ref(src->mb_type_buf);
    if (!dst->qscale_table_buf || !dst->mb_type_buf)
        goto fail;
    dst->qscale_table = src->qscale_table;
    dst->mb_type      = src->mb_type;

    for (i = 0; i < 2; i++) {
        dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
        dst->ref_index_buf[i]  = av_buffer_ref(src->ref_index_buf[i]);
        if (!dst->motion_val_buf[i] || !dst->ref_index_buf[i])
            goto fail;
        dst->motion_val[i] = src->motion_val[i];
        dst->ref_index[i]  = src->ref_index[i];
    }

    if (src->hwaccel_picture_private) {
        dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
        if (!dst->hwaccel_priv_buf)
            goto fail;
        dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
    }

    for (i = 0; i < 2; i++)
        dst->field_poc[i] = src->field_poc[i];

    memcpy(dst->ref_poc,   src->ref_poc,   sizeof(src->ref_poc));
    memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));

    dst->poc           = src->poc;
    dst->frame_num     = src->frame_num;
    dst->mmco_reset    = src->mmco_reset;
    dst->pic_id        = src->pic_id;
    dst->long_ref      = src->long_ref;
    dst->mbaff         = src->mbaff;
    dst->field_picture = src->field_picture;
    dst->needs_realloc = src->needs_realloc;
    dst->reference     = src->reference;
    dst->crop          = src->crop;
    dst->crop_left     = src->crop_left;
    dst->crop_top      = src->crop_top;
    dst->recovered     = src->recovered;
    dst->invalid_gap   = src->invalid_gap;
    dst->sei_recovery_frame_cnt = src->sei_recovery_frame_cnt;

    return 0;
fail:
    ff_h264_unref_picture(h, dst);
    return ret;
}

void ff_h264_set_erpic(ERPicture *dst, H264Picture *src)
{
#if CONFIG_ERROR_RESILIENCE
    int i;

    memset(dst, 0, sizeof(*dst));

    if (!src)
        return;

    dst->f = &src->f;
    dst->tf = &src->tf;

    for (i = 0; i < 2; i++) {
        dst->motion_val[i] = src->motion_val[i];
        dst->ref_index[i] = src->ref_index[i];
    }

    dst->mb_type = src->mb_type;
    dst->field_picture = src->field_picture;
#endif /* CONFIG_ERROR_RESILIENCE */
}

int ff_h264_field_end(H264Context *h, int in_setup)
{
    AVCodecContext *const avctx = h->avctx;
    int err = 0;
    h->mb_y = 0;

    if (CONFIG_H264_VDPAU_DECODER &&
        h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
        ff_vdpau_h264_set_reference_frames(h);

    if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) {
        if (!h->droppable) {
            err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
            h->prev_poc_msb = h->poc_msb;
            h->prev_poc_lsb = h->poc_lsb;
        }
        h->prev_frame_num_offset = h->frame_num_offset;
        h->prev_frame_num        = h->frame_num;
        h->outputed_poc          = h->next_outputed_poc;
    }

    if (avctx->hwaccel) {
        if (avctx->hwaccel->end_frame(avctx) < 0)
            av_log(avctx, AV_LOG_ERROR,
                   "hardware accelerator failed to decode picture\n");
    }

    if (CONFIG_H264_VDPAU_DECODER &&
        h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
        ff_vdpau_h264_picture_complete(h);

#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->sps.new) {
        ff_h264_set_erpic(&h->er.cur_pic, h->cur_pic_ptr);
        ff_er_frame_end(&h->er);
    }
#endif /* CONFIG_ERROR_RESILIENCE */

    if (!in_setup && !h->droppable)
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
                                  h->picture_structure == PICT_BOTTOM_FIELD);
    emms_c();

    h->current_slice = 0;

    return err;
}
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* H.26L/H.264/AVC/JVT/14496-10/... decoder
	3	* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
	4	*
	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU Lesser General Public
	9	* License as published by the Free Software Foundation; either
	10	* version 2.1 of the License, or (at your option) any later version.
	11	*
	12	* FFmpeg is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
	18	* License along with FFmpeg; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
	22	/**
	23	* @file
	24	* H.264 / AVC / MPEG4 part10 codec.
	25	* @author Michael Niedermayer <michaelni@gmx.at>
	26	*/
	27
	28	#include "libavutil/avassert.h"
	29	#include "libavutil/imgutils.h"
	30	#include "libavutil/timer.h"
	31	#include "internal.h"
	32	#include "cabac.h"
	33	#include "cabac_functions.h"
	34	#include "error_resilience.h"
	35	#include "avcodec.h"
	36	#include "h264.h"
	37	#include "h264data.h"
	38	#include "h264chroma.h"
	39	#include "h264_mvpred.h"
	40	#include "golomb.h"
	41	#include "mathops.h"
	42	#include "mpegutils.h"
	43	#include "rectangle.h"
	44	#include "thread.h"
	45	#include "vdpau_internal.h"
	46
	47	void ff_h264_unref_picture(H264Context h, H264Picture pic)
	48	{
	49	int off = offsetof(H264Picture, tf) + sizeof(pic->tf);
	50	int i;
	51
	52	if (!pic->f.buf[0])
	53	return;
	54
	55	ff_thread_release_buffer(h->avctx, &pic->tf);
	56	av_buffer_unref(&pic->hwaccel_priv_buf);
	57
	58	av_buffer_unref(&pic->qscale_table_buf);
	59	av_buffer_unref(&pic->mb_type_buf);
	60	for (i = 0; i < 2; i++) {
	61	av_buffer_unref(&pic->motion_val_buf[i]);
	62	av_buffer_unref(&pic->ref_index_buf[i]);
	63	}
	64
65	memset((uint8_t)pic + off, 0, sizeof(pic) - off);
66	}
67
68	int ff_h264_ref_picture(H264Context h, H264Picture dst, H264Picture *src)
69	{
70	int ret, i;
71
72	av_assert0(!dst->f.buf[0]);
73	av_assert0(src->f.buf[0]);
74
75	src->tf.f = &src->f;
76	dst->tf.f = &dst->f;
77	ret = ff_thread_ref_frame(&dst->tf, &src->tf);
78	if (ret < 0)
79	goto fail;
80
81	dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
82	dst->mb_type_buf = av_buffer_ref(src->mb_type_buf);
83	if (!dst->qscale_table_buf \|\| !dst->mb_type_buf)
84	goto fail;
85	dst->qscale_table = src->qscale_table;
86	dst->mb_type = src->mb_type;
87
88	for (i = 0; i < 2; i++) {
89	dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
90	dst->ref_index_buf[i] = av_buffer_ref(src->ref_index_buf[i]);
91	if (!dst->motion_val_buf[i] \|\| !dst->ref_index_buf[i])
92	goto fail;
93	dst->motion_val[i] = src->motion_val[i];
94	dst->ref_index[i] = src->ref_index[i];
95	}
96
97	if (src->hwaccel_picture_private) {
98	dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
99	if (!dst->hwaccel_priv_buf)
100	goto fail;
101	dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
102	}
103
104	for (i = 0; i < 2; i++)
105	dst->field_poc[i] = src->field_poc[i];
106
107	memcpy(dst->ref_poc, src->ref_poc, sizeof(src->ref_poc));
108	memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));
109
110	dst->poc = src->poc;
111	dst->frame_num = src->frame_num;
112	dst->mmco_reset = src->mmco_reset;
113	dst->pic_id = src->pic_id;
114	dst->long_ref = src->long_ref;
115	dst->mbaff = src->mbaff;
116	dst->field_picture = src->field_picture;
117	dst->needs_realloc = src->needs_realloc;
118	dst->reference = src->reference;
119	dst->crop = src->crop;
120	dst->crop_left = src->crop_left;
121	dst->crop_top = src->crop_top;
122	dst->recovered = src->recovered;
123	dst->invalid_gap = src->invalid_gap;
124	dst->sei_recovery_frame_cnt = src->sei_recovery_frame_cnt;
125
126	return 0;
127	fail:
128	ff_h264_unref_picture(h, dst);
129	return ret;
130	}
131
132	void ff_h264_set_erpic(ERPicture dst, H264Picture src)
133	{
134	#if CONFIG_ERROR_RESILIENCE
135	int i;
136
137	memset(dst, 0, sizeof(*dst));
138
139	if (!src)
140	return;
141
142	dst->f = &src->f;
143	dst->tf = &src->tf;
144
145	for (i = 0; i < 2; i++) {
146	dst->motion_val[i] = src->motion_val[i];
147	dst->ref_index[i] = src->ref_index[i];
148	}
149
150	dst->mb_type = src->mb_type;
151	dst->field_picture = src->field_picture;
152	#endif /* CONFIG_ERROR_RESILIENCE */
153	}
154
155	int ff_h264_field_end(H264Context *h, int in_setup)
156	{
157	AVCodecContext *const avctx = h->avctx;
158	int err = 0;
159	h->mb_y = 0;
160
161	if (CONFIG_H264_VDPAU_DECODER &&
162	h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
163	ff_vdpau_h264_set_reference_frames(h);
164
165	if (in_setup \|\| !(avctx->active_thread_type & FF_THREAD_FRAME)) {
166	if (!h->droppable) {
167	err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
168	h->prev_poc_msb = h->poc_msb;
169	h->prev_poc_lsb = h->poc_lsb;
170	}
171	h->prev_frame_num_offset = h->frame_num_offset;
172	h->prev_frame_num = h->frame_num;
173	h->outputed_poc = h->next_outputed_poc;
174	}
175
176	if (avctx->hwaccel) {
177	if (avctx->hwaccel->end_frame(avctx) < 0)
178	av_log(avctx, AV_LOG_ERROR,
179	"hardware accelerator failed to decode picture\n");
180	}
181
182	if (CONFIG_H264_VDPAU_DECODER &&
183	h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
184	ff_vdpau_h264_picture_complete(h);
185
186	#if CONFIG_ERROR_RESILIENCE
187	/*
188	* FIXME: Error handling code does not seem to support interlaced
189	* when slices span multiple rows
190	* The ff_er_add_slice calls don't work right for bottom
191	* fields; they cause massive erroneous error concealing
192	* Error marking covers both fields (top and bottom).
193	* This causes a mismatched s->error_count
194	* and a bad error table. Further, the error count goes to
195	* INT_MAX when called for bottom field, because mb_y is
196	* past end by one (callers fault) and resync_mb_y != 0
197	* causes problems for the first MB line, too.
198	*/
199	if (!FIELD_PICTURE(h) && h->current_slice && !h->sps.new) {
200	ff_h264_set_erpic(&h->er.cur_pic, h->cur_pic_ptr);
201	ff_er_frame_end(&h->er);
202	}
203	#endif /* CONFIG_ERROR_RESILIENCE */
204
205	if (!in_setup && !h->droppable)
206	ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
207	h->picture_structure == PICT_BOTTOM_FIELD);
208	emms_c();
209
210	h->current_slice = 0;
211
212	return err;
213	}