/src/ffmpeg/libavformat/demux_utils.c

Source
/*
 * Various utility demuxing functions
 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
 *
 * 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
 */

#include "libavutil/mem.h"

#include "libavutil/avassert.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/packet_internal.h"
#include "avformat.h"
#include "avformat_internal.h"
#include "avio_internal.h"
#include "demux.h"
#include "internal.h"

struct AVCodecParserContext *av_stream_get_parser(const AVStream *st)
{
    return cffstream(st)->parser;
}

void avpriv_stream_set_need_parsing(AVStream *st, enum AVStreamParseType type)
{
    ffstream(st)->need_parsing = type;
}

AVChapter *avpriv_new_chapter(AVFormatContext *s, int64_t id, AVRational time_base,
                              int64_t start, int64_t end, const char *title)
{
    FormatContextInternal *const fci = ff_fc_internal(s);
    AVChapter *chapter = NULL;
    int ret;

    if (end != AV_NOPTS_VALUE && start > end) {
        av_log(s, AV_LOG_ERROR, "Chapter end time %"PRId64" before start %"PRId64"\n", end, start);
        return NULL;
    }

    if (!s->nb_chapters) {
        fci->chapter_ids_monotonic = 1;
    } else if (!fci->chapter_ids_monotonic || s->chapters[s->nb_chapters-1]->id >= id) {
        for (unsigned i = 0; i < s->nb_chapters; i++)
            if (s->chapters[i]->id == id)
                chapter = s->chapters[i];
        if (!chapter)
            fci->chapter_ids_monotonic = 0;
    }

    if (!chapter) {
        chapter = av_mallocz(sizeof(*chapter));
        if (!chapter)
            return NULL;
        ret = av_dynarray_add_nofree(&s->chapters, &s->nb_chapters, chapter);
        if (ret < 0) {
            av_free(chapter);
            return NULL;
        }
    }
    av_dict_set(&chapter->metadata, "title", title, 0);
    chapter->id        = id;
    chapter->time_base = time_base;
    chapter->start     = start;
    chapter->end       = end;

    return chapter;
}

int avformat_queue_attached_pictures(AVFormatContext *s)
{
    FormatContextInternal *const fci = ff_fc_internal(s);
    int ret;
    for (unsigned i = 0; i < s->nb_streams; i++)
        if (s->streams[i]->disposition & AV_DISPOSITION_ATTACHED_PIC &&
            s->streams[i]->discard < AVDISCARD_ALL) {
            if (s->streams[i]->attached_pic.size <= 0) {
                av_log(s, AV_LOG_WARNING,
                       "Attached picture on stream %d has invalid size, "
                       "ignoring\n", i);
                continue;
            }

            ret = avpriv_packet_list_put(&fci->raw_packet_buffer,
                                         &s->streams[i]->attached_pic,
                                         av_packet_ref, 0);
            if (ret < 0)
                return ret;
        }
    return 0;
}

int ff_add_attached_pic(AVFormatContext *s, AVStream *st0, AVIOContext *pb,
                        AVBufferRef **buf, int size)
{
    AVStream *st = st0;
    AVPacket *pkt;
    int ret;

    if (!st && !(st = avformat_new_stream(s, NULL)))
        return AVERROR(ENOMEM);
    pkt = &st->attached_pic;
    if (buf) {
        av_assert1(*buf);
        av_packet_unref(pkt);
        pkt->buf  = *buf;
        pkt->data = (*buf)->data;
        pkt->size = (*buf)->size - AV_INPUT_BUFFER_PADDING_SIZE;
        *buf = NULL;
    } else {
        ret = av_get_packet(pb, pkt, size);
        if (ret < 0)
            goto fail;
    }
    st->disposition         |= AV_DISPOSITION_ATTACHED_PIC;
    st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;

    pkt->stream_index = st->index;
    pkt->flags       |= AV_PKT_FLAG_KEY;

    return 0;
fail:
    if (!st0)
        ff_remove_stream(s, st);
    return ret;
}

int ff_add_param_change(AVPacket *pkt, int32_t channels,
                        uint64_t channel_layout, int32_t sample_rate,
                        int32_t width, int32_t height)
{
    uint32_t flags = 0;
    int size = 4;
    uint8_t *data;
    if (!pkt)
        return AVERROR(EINVAL);

    if (sample_rate) {
        size  += 4;
        flags |= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
    }
    if (width || height) {
        size  += 8;
        flags |= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
    }
    data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
    if (!data)
        return AVERROR(ENOMEM);
    bytestream_put_le32(&data, flags);
    if (sample_rate)
        bytestream_put_le32(&data, sample_rate);
    if (width || height) {
        bytestream_put_le32(&data, width);
        bytestream_put_le32(&data, height);
    }
    return 0;
}

int av_read_play(AVFormatContext *s)
{
    if (ffifmt(s->iformat)->read_play)
        return ffifmt(s->iformat)->read_play(s);
    if (s->pb)
        return avio_pause(s->pb, 0);
    return AVERROR(ENOSYS);
}

int av_read_pause(AVFormatContext *s)
{
    if (ffifmt(s->iformat)->read_pause)
        return ffifmt(s->iformat)->read_pause(s);
    if (s->pb)
        return avio_pause(s->pb, 1);
    return AVERROR(ENOSYS);
}

int ff_generate_avci_extradata(AVStream *st)
{
    static const uint8_t avci100_1080p_extradata[] = {
        // SPS
        0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
        0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
        0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
        0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
        0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
        0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
        0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
        0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
        0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        // PPS
        0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
        0xd0
    };
    static const uint8_t avci100_1080i_extradata[] = {
        // SPS
        0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
        0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
        0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
        0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
        0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
        0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
        0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
        0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
        0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
        0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
        0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x20,
        // PPS
        0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
        0xd0
    };
    static const uint8_t avci50_1080p_extradata[] = {
        // SPS
        0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
        0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
        0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
        0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
        0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
        0x6e, 0x6c, 0xd3, 0x3c, 0x05, 0xa0, 0x22, 0x7e,
        0x5f, 0xfc, 0x00, 0x0c, 0x00, 0x13, 0x8c, 0x04,
        0x04, 0x05, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00,
        0x00, 0x03, 0x00, 0x32, 0x84, 0x00, 0x00, 0x00,
        // PPS
        0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
        0x11
    };
    static const uint8_t avci50_1080i_extradata[] = {
        // SPS
        0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
        0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
        0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
        0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
        0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
        0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
        0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
        0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
        0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
        0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
        0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
        // PPS
        0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
        0x11
    };
    static const uint8_t avci100_720p_extradata[] = {
        // SPS
        0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
        0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
        0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
        0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
        0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
        0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
        0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
        0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
        0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
        0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
        // PPS
        0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
        0x11
    };
    static const uint8_t avci50_720p_extradata[] = {
        // SPS
        0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x20,
        0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
        0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
        0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
        0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
        0x6e, 0x6c, 0xd3, 0x3c, 0x0f, 0x01, 0x6e, 0xff,
        0xc0, 0x00, 0xc0, 0x01, 0x38, 0xc0, 0x40, 0x40,
        0x50, 0x00, 0x00, 0x03, 0x00, 0x10, 0x00, 0x00,
        0x06, 0x48, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
        // PPS
        0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
        0x11
    };

    const uint8_t *data = NULL;
    int ret, size       = 0;

    if (st->codecpar->width == 1920) {
        if (st->codecpar->field_order == AV_FIELD_PROGRESSIVE) {
            data = avci100_1080p_extradata;
            size = sizeof(avci100_1080p_extradata);
        } else {
            data = avci100_1080i_extradata;
            size = sizeof(avci100_1080i_extradata);
        }
    } else if (st->codecpar->width == 1440) {
        if (st->codecpar->field_order == AV_FIELD_PROGRESSIVE) {
            data = avci50_1080p_extradata;
            size = sizeof(avci50_1080p_extradata);
        } else {
            data = avci50_1080i_extradata;
            size = sizeof(avci50_1080i_extradata);
        }
    } else if (st->codecpar->width == 1280) {
        data = avci100_720p_extradata;
        size = sizeof(avci100_720p_extradata);
    } else if (st->codecpar->width == 960) {
        data = avci50_720p_extradata;
        size = sizeof(avci50_720p_extradata);
    }

    if (!size)
        return 0;

    if ((ret = ff_alloc_extradata(st->codecpar, size)) < 0)
        return ret;
    memcpy(st->codecpar->extradata, data, size);

    return 0;
}

int ff_get_extradata(void *logctx, AVCodecParameters *par, AVIOContext *pb, int size)
{
    int ret = ff_alloc_extradata(par, size);
    if (ret < 0)
        return ret;
    ret = ffio_read_size(pb, par->extradata, size);
    if (ret < 0) {
        av_freep(&par->extradata);
        par->extradata_size = 0;
        av_log(logctx, AV_LOG_ERROR, "Failed to read extradata of size %d\n", size);
        return ret;
    }

    return ret;
}

int ff_find_stream_index(const AVFormatContext *s, int id)
{
    for (unsigned i = 0; i < s->nb_streams; i++)
        if (s->streams[i]->id == id)
            return i;
    return -1;
}

Coverage Report

Created: 2026-01-25 07:18

Line	Count	Source
1		/*
2		* Various utility demuxing functions
3		* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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		#include "libavutil/mem.h"
23
24		#include "libavutil/avassert.h"
25		#include "libavcodec/bytestream.h"
26		#include "libavcodec/packet_internal.h"
27		#include "avformat.h"
28		#include "avformat_internal.h"
29		#include "avio_internal.h"
30		#include "demux.h"
31		#include "internal.h"
32
33		struct AVCodecParserContext av_stream_get_parser(const AVStream st)
34	0	{
35	0	return cffstream(st)->parser;
36	0	}
37
38		void avpriv_stream_set_need_parsing(AVStream *st, enum AVStreamParseType type)
39	0	{
40	0	ffstream(st)->need_parsing = type;
41	0	}
42
43		AVChapter avpriv_new_chapter(AVFormatContext s, int64_t id, AVRational time_base,
44		int64_t start, int64_t end, const char *title)
45	0	{
46	0	FormatContextInternal *const fci = ff_fc_internal(s);
47	0	AVChapter *chapter = NULL;
48	0	int ret;
49
50	0	if (end != AV_NOPTS_VALUE && start > end) {
51	0	av_log(s, AV_LOG_ERROR, "Chapter end time %"PRId64" before start %"PRId64"\n", end, start);
52	0	return NULL;
53	0	}
54
55	0	if (!s->nb_chapters) {
56	0	fci->chapter_ids_monotonic = 1;
57	0	} else if (!fci->chapter_ids_monotonic \|\| s->chapters[s->nb_chapters-1]->id >= id) {
58	0	for (unsigned i = 0; i < s->nb_chapters; i++)
59	0	if (s->chapters[i]->id == id)
60	0	chapter = s->chapters[i];
61	0	if (!chapter)
62	0	fci->chapter_ids_monotonic = 0;
63	0	}
64
65	0	if (!chapter) {
66	0	chapter = av_mallocz(sizeof(*chapter));
67	0	if (!chapter)
68	0	return NULL;
69	0	ret = av_dynarray_add_nofree(&s->chapters, &s->nb_chapters, chapter);
70	0	if (ret < 0) {
71	0	av_free(chapter);
72	0	return NULL;
73	0	}
74	0	}
75	0	av_dict_set(&chapter->metadata, "title", title, 0);
76	0	chapter->id = id;
77	0	chapter->time_base = time_base;
78	0	chapter->start = start;
79	0	chapter->end = end;
80
81	0	return chapter;
82	0	}
83
84		int avformat_queue_attached_pictures(AVFormatContext *s)
85	0	{
86	0	FormatContextInternal *const fci = ff_fc_internal(s);
87	0	int ret;
88	0	for (unsigned i = 0; i < s->nb_streams; i++)
89	0	if (s->streams[i]->disposition & AV_DISPOSITION_ATTACHED_PIC &&
90	0	s->streams[i]->discard < AVDISCARD_ALL) {
91	0	if (s->streams[i]->attached_pic.size <= 0) {
92	0	av_log(s, AV_LOG_WARNING,
93	0	"Attached picture on stream %d has invalid size, "
94	0	"ignoring\n", i);
95	0	continue;
96	0	}
97
98	0	ret = avpriv_packet_list_put(&fci->raw_packet_buffer,
99	0	&s->streams[i]->attached_pic,
100	0	av_packet_ref, 0);
101	0	if (ret < 0)
102	0	return ret;
103	0	}
104	0	return 0;
105	0	}
106
107		int ff_add_attached_pic(AVFormatContext s, AVStream st0, AVIOContext *pb,
108		AVBufferRef **buf, int size)
109	0	{
110	0	AVStream *st = st0;
111	0	AVPacket *pkt;
112	0	int ret;
113
114	0	if (!st && !(st = avformat_new_stream(s, NULL)))
115	0	return AVERROR(ENOMEM);
116	0	pkt = &st->attached_pic;
117	0	if (buf) {
118	0	av_assert1(*buf);
119	0	av_packet_unref(pkt);
120	0	pkt->buf = *buf;
121	0	pkt->data = (*buf)->data;
122	0	pkt->size = (*buf)->size - AV_INPUT_BUFFER_PADDING_SIZE;
123	0	*buf = NULL;
124	0	} else {
125	0	ret = av_get_packet(pb, pkt, size);
126	0	if (ret < 0)
127	0	goto fail;
128	0	}
129	0	st->disposition \|= AV_DISPOSITION_ATTACHED_PIC;
130	0	st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
131
132	0	pkt->stream_index = st->index;
133	0	pkt->flags \|= AV_PKT_FLAG_KEY;
134
135	0	return 0;
136	0	fail:
137	0	if (!st0)
138	0	ff_remove_stream(s, st);
139	0	return ret;
140	0	}
141
142		int ff_add_param_change(AVPacket *pkt, int32_t channels,
143		uint64_t channel_layout, int32_t sample_rate,
144		int32_t width, int32_t height)
145	0	{
146	0	uint32_t flags = 0;
147	0	int size = 4;
148	0	uint8_t *data;
149	0	if (!pkt)
150	0	return AVERROR(EINVAL);
151
152	0	if (sample_rate) {
153	0	size += 4;
154	0	flags \|= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
155	0	}
156	0	if (width \|\| height) {
157	0	size += 8;
158	0	flags \|= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
159	0	}
160	0	data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
161	0	if (!data)
162	0	return AVERROR(ENOMEM);
163	0	bytestream_put_le32(&data, flags);
164	0	if (sample_rate)
165	0	bytestream_put_le32(&data, sample_rate);
166	0	if (width \|\| height) {
167	0	bytestream_put_le32(&data, width);
168	0	bytestream_put_le32(&data, height);
169	0	}
170	0	return 0;
171	0	}
172
173		int av_read_play(AVFormatContext *s)
174	0	{
175	0	if (ffifmt(s->iformat)->read_play)
176	0	return ffifmt(s->iformat)->read_play(s);
177	0	if (s->pb)
178	0	return avio_pause(s->pb, 0);
179	0	return AVERROR(ENOSYS);
180	0	}
181
182		int av_read_pause(AVFormatContext *s)
183	0	{
184	0	if (ffifmt(s->iformat)->read_pause)
185	0	return ffifmt(s->iformat)->read_pause(s);
186	0	if (s->pb)
187	0	return avio_pause(s->pb, 1);
188	0	return AVERROR(ENOSYS);
189	0	}
190
191		int ff_generate_avci_extradata(AVStream *st)
192	0	{
193	0	static const uint8_t avci100_1080p_extradata[] = {
194		// SPS
195	0	0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
196	0	0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
197	0	0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
198	0	0x18, 0x21, 0x02, 0x56, 0xb9, 0x3d, 0x7d, 0x7e,
199	0	0x4f, 0xe3, 0x3f, 0x11, 0xf1, 0x9e, 0x08, 0xb8,
200	0	0x8c, 0x54, 0x43, 0xc0, 0x78, 0x02, 0x27, 0xe2,
201	0	0x70, 0x1e, 0x30, 0x10, 0x10, 0x14, 0x00, 0x00,
202	0	0x03, 0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xca,
203	0	0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
204		// PPS
205	0	0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
206	0	0xd0
207	0	};
208	0	static const uint8_t avci100_1080i_extradata[] = {
209		// SPS
210	0	0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
211	0	0xb6, 0xd4, 0x20, 0x22, 0x33, 0x19, 0xc6, 0x63,
212	0	0x23, 0x21, 0x01, 0x11, 0x98, 0xce, 0x33, 0x19,
213	0	0x18, 0x21, 0x03, 0x3a, 0x46, 0x65, 0x6a, 0x65,
214	0	0x24, 0xad, 0xe9, 0x12, 0x32, 0x14, 0x1a, 0x26,
215	0	0x34, 0xad, 0xa4, 0x41, 0x82, 0x23, 0x01, 0x50,
216	0	0x2b, 0x1a, 0x24, 0x69, 0x48, 0x30, 0x40, 0x2e,
217	0	0x11, 0x12, 0x08, 0xc6, 0x8c, 0x04, 0x41, 0x28,
218	0	0x4c, 0x34, 0xf0, 0x1e, 0x01, 0x13, 0xf2, 0xe0,
219	0	0x3c, 0x60, 0x20, 0x20, 0x28, 0x00, 0x00, 0x03,
220	0	0x00, 0x08, 0x00, 0x00, 0x03, 0x01, 0x94, 0x20,
221		// PPS
222	0	0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x33, 0x48,
223	0	0xd0
224	0	};
225	0	static const uint8_t avci50_1080p_extradata[] = {
226		// SPS
227	0	0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
228	0	0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
229	0	0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
230	0	0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
231	0	0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
232	0	0x6e, 0x6c, 0xd3, 0x3c, 0x05, 0xa0, 0x22, 0x7e,
233	0	0x5f, 0xfc, 0x00, 0x0c, 0x00, 0x13, 0x8c, 0x04,
234	0	0x04, 0x05, 0x00, 0x00, 0x03, 0x00, 0x01, 0x00,
235	0	0x00, 0x03, 0x00, 0x32, 0x84, 0x00, 0x00, 0x00,
236		// PPS
237	0	0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
238	0	0x11
239	0	};
240	0	static const uint8_t avci50_1080i_extradata[] = {
241		// SPS
242	0	0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x28,
243	0	0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
244	0	0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
245	0	0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6e, 0x61,
246	0	0x87, 0x3e, 0x73, 0x4d, 0x98, 0x0c, 0x03, 0x06,
247	0	0x9c, 0x0b, 0x73, 0xe6, 0xc0, 0xb5, 0x18, 0x63,
248	0	0x0d, 0x39, 0xe0, 0x5b, 0x02, 0xd4, 0xc6, 0x19,
249	0	0x1a, 0x79, 0x8c, 0x32, 0x34, 0x24, 0xf0, 0x16,
250	0	0x81, 0x13, 0xf7, 0xff, 0x80, 0x02, 0x00, 0x01,
251	0	0xf1, 0x80, 0x80, 0x80, 0xa0, 0x00, 0x00, 0x03,
252	0	0x00, 0x20, 0x00, 0x00, 0x06, 0x50, 0x80, 0x00,
253		// PPS
254	0	0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
255	0	0x11
256	0	};
257	0	static const uint8_t avci100_720p_extradata[] = {
258		// SPS
259	0	0x00, 0x00, 0x00, 0x01, 0x67, 0x7a, 0x10, 0x29,
260	0	0xb6, 0xd4, 0x20, 0x2a, 0x33, 0x1d, 0xc7, 0x62,
261	0	0xa1, 0x08, 0x40, 0x54, 0x66, 0x3b, 0x8e, 0xc5,
262	0	0x42, 0x02, 0x10, 0x25, 0x64, 0x2c, 0x89, 0xe8,
263	0	0x85, 0xe4, 0x21, 0x4b, 0x90, 0x83, 0x06, 0x95,
264	0	0xd1, 0x06, 0x46, 0x97, 0x20, 0xc8, 0xd7, 0x43,
265	0	0x08, 0x11, 0xc2, 0x1e, 0x4c, 0x91, 0x0f, 0x01,
266	0	0x40, 0x16, 0xec, 0x07, 0x8c, 0x04, 0x04, 0x05,
267	0	0x00, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x03,
268	0	0x00, 0x64, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00,
269		// PPS
270	0	0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x31, 0x12,
271	0	0x11
272	0	};
273	0	static const uint8_t avci50_720p_extradata[] = {
274		// SPS
275	0	0x00, 0x00, 0x00, 0x01, 0x67, 0x6e, 0x10, 0x20,
276	0	0xa6, 0xd4, 0x20, 0x32, 0x33, 0x0c, 0x71, 0x18,
277	0	0x88, 0x62, 0x10, 0x19, 0x19, 0x86, 0x38, 0x8c,
278	0	0x44, 0x30, 0x21, 0x02, 0x56, 0x4e, 0x6f, 0x37,
279	0	0xcd, 0xf9, 0xbf, 0x81, 0x6b, 0xf3, 0x7c, 0xde,
280	0	0x6e, 0x6c, 0xd3, 0x3c, 0x0f, 0x01, 0x6e, 0xff,
281	0	0xc0, 0x00, 0xc0, 0x01, 0x38, 0xc0, 0x40, 0x40,
282	0	0x50, 0x00, 0x00, 0x03, 0x00, 0x10, 0x00, 0x00,
283	0	0x06, 0x48, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
284		// PPS
285	0	0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x31, 0x12,
286	0	0x11
287	0	};
288
289	0	const uint8_t *data = NULL;
290	0	int ret, size = 0;
291
292	0	if (st->codecpar->width == 1920) {
293	0	if (st->codecpar->field_order == AV_FIELD_PROGRESSIVE) {
294	0	data = avci100_1080p_extradata;
295	0	size = sizeof(avci100_1080p_extradata);
296	0	} else {
297	0	data = avci100_1080i_extradata;
298	0	size = sizeof(avci100_1080i_extradata);
299	0	}
300	0	} else if (st->codecpar->width == 1440) {
301	0	if (st->codecpar->field_order == AV_FIELD_PROGRESSIVE) {
302	0	data = avci50_1080p_extradata;
303	0	size = sizeof(avci50_1080p_extradata);
304	0	} else {
305	0	data = avci50_1080i_extradata;
306	0	size = sizeof(avci50_1080i_extradata);
307	0	}
308	0	} else if (st->codecpar->width == 1280) {
309	0	data = avci100_720p_extradata;
310	0	size = sizeof(avci100_720p_extradata);
311	0	} else if (st->codecpar->width == 960) {
312	0	data = avci50_720p_extradata;
313	0	size = sizeof(avci50_720p_extradata);
314	0	}
315
316	0	if (!size)
317	0	return 0;
318
319	0	if ((ret = ff_alloc_extradata(st->codecpar, size)) < 0)
320	0	return ret;
321	0	memcpy(st->codecpar->extradata, data, size);
322
323	0	return 0;
324	0	}
325
326		int ff_get_extradata(void logctx, AVCodecParameters par, AVIOContext *pb, int size)
327	0	{
328	0	int ret = ff_alloc_extradata(par, size);
329	0	if (ret < 0)
330	0	return ret;
331	0	ret = ffio_read_size(pb, par->extradata, size);
332	0	if (ret < 0) {
333	0	av_freep(&par->extradata);
334	0	par->extradata_size = 0;
335	0	av_log(logctx, AV_LOG_ERROR, "Failed to read extradata of size %d\n", size);
336	0	return ret;
337	0	}
338
339	0	return ret;
340	0	}
341
342		int ff_find_stream_index(const AVFormatContext *s, int id)
343	0	{
344	0	for (unsigned i = 0; i < s->nb_streams; i++)
345	0	if (s->streams[i]->id == id)
346	0	return i;
347	0	return -1;
348	0	}