chasing indexing error

1 files changed, 0 insertions, 1003 deletions

diff --git a/ffmpeg/libavformat/asfenc.c b/ffmpeg/libavformat/asfenc.c
deleted file mode 100644
index 8e343b3..0000000
--- a/ffmpeg/libavformat/asfenc.c
+++ /dev/null
@@ -1,1003 +0,0 @@
-/*
- * ASF muxer
- * Copyright (c) 2000, 2001 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/avassert.h"
-#include "libavutil/dict.h"
-#include "libavutil/mathematics.h"
-#include "avformat.h"
-#include "avio_internal.h"
-#include "internal.h"
-#include "riff.h"
-#include "asf.h"
-
-#undef NDEBUG
-#include <assert.h>
-
-
-#define ASF_INDEXED_INTERVAL    10000000
-#define ASF_INDEX_BLOCK         (1<<9)
-
-#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2
-#define ASF_PACKET_ERROR_CORRECTION_FLAGS          \
-    (ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT |    \
-     ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)
-
-#if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0)
-#   define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1
-#else
-#   define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0
-#endif
-
-#define ASF_PPI_PROPERTY_FLAGS                                       \
-    (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE           |    \
-     ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD |    \
-     ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE       |    \
-     ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE)
-
-#define ASF_PPI_LENGTH_TYPE_FLAGS 0
-
-#define ASF_PAYLOAD_FLAGS ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD
-
-#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
-#   define ASF_PPI_SEQUENCE_FIELD_SIZE 1
-#endif
-#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
-#   define ASF_PPI_SEQUENCE_FIELD_SIZE 2
-#endif
-#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
-#   define ASF_PPI_SEQUENCE_FIELD_SIZE 4
-#endif
-#ifndef ASF_PPI_SEQUENCE_FIELD_SIZE
-#   define ASF_PPI_SEQUENCE_FIELD_SIZE 0
-#endif
-
-#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
-#   define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1
-#endif
-#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
-#   define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2
-#endif
-#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
-#   define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4
-#endif
-#ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE
-#   define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0
-#endif
-
-#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
-#   define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1
-#endif
-#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
-#   define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2
-#endif
-#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
-#   define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4
-#endif
-#ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE
-#   define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0
-#endif
-
-#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1
-#endif
-#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2
-#endif
-#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4
-#endif
-#ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE
-#   define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0
-#endif
-
-#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1
-#endif
-#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2
-#endif
-#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4
-#endif
-#ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE
-#   define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0
-#endif
-
-#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1
-#endif
-#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2
-#endif
-#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4
-#endif
-#ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE
-#   define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0
-#endif
-
-#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1
-#endif
-#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
-#   define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2
-#endif
-#ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE
-#   define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0
-#endif
-
-#define PACKET_HEADER_MIN_SIZE \
-    (ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE +       \
-     ASF_PACKET_ERROR_CORRECTION_DATA_SIZE +              \
-     1 +        /* Length Type Flags */                   \
-     1 +        /* Property Flags */                      \
-     ASF_PPI_PACKET_LENGTH_FIELD_SIZE +                   \
-     ASF_PPI_SEQUENCE_FIELD_SIZE +                        \
-     ASF_PPI_PADDING_LENGTH_FIELD_SIZE +                  \
-     4 +        /* Send Time Field */                     \
-     2)         /* Duration Field */
-
-// Replicated Data shall be at least 8 bytes long.
-#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08
-
-#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD                \
-    (1 +     /* Stream Number */                          \
-     ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +         \
-     ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +    \
-     ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +      \
-     ASF_PAYLOAD_REPLICATED_DATA_LENGTH)
-
-#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS             \
-    (1 +        /* Stream Number */                       \
-     ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +         \
-     ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +    \
-     ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +      \
-     ASF_PAYLOAD_REPLICATED_DATA_LENGTH +                 \
-     ASF_PAYLOAD_LENGTH_FIELD_SIZE)
-
-#define SINGLE_PAYLOAD_DATA_LENGTH                        \
-    (PACKET_SIZE -                                        \
-     PACKET_HEADER_MIN_SIZE -                             \
-     PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)
-
-#define MULTI_PAYLOAD_CONSTANT                            \
-    (PACKET_SIZE -                                        \
-     PACKET_HEADER_MIN_SIZE -                             \
-     1 -         /* Payload Flags */                      \
-     2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)
-
-#define DATA_HEADER_SIZE 50
-
-typedef struct {
-    uint32_t seqno;
-    int is_streamed;
-    ASFStream streams[128];              ///< it's max number and it's not that big
-    /* non streamed additonnal info */
-    uint64_t nb_packets;                 ///< how many packets are there in the file, invalid if broadcasting
-    int64_t duration;                    ///< in 100ns units
-    /* packet filling */
-    unsigned char multi_payloads_present;
-    int packet_size_left;
-    int64_t packet_timestamp_start;
-    int64_t packet_timestamp_end;
-    unsigned int packet_nb_payloads;
-    uint8_t packet_buf[PACKET_SIZE];
-    AVIOContext pb;
-    /* only for reading */
-    uint64_t data_offset;                ///< beginning of the first data packet
-
-    ASFIndex *index_ptr;
-    uint32_t nb_index_memory_alloc;
-    uint16_t maximum_packet;
-    uint32_t next_packet_number;
-    uint16_t next_packet_count;
-    uint64_t next_packet_offset;
-    int      next_start_sec;
-    int      end_sec;
-} ASFContext;
-
-static const AVCodecTag codec_asf_bmp_tags[] = {
-    { AV_CODEC_ID_MPEG4,     MKTAG('M', '4', 'S', '2') },
-    { AV_CODEC_ID_MPEG4,     MKTAG('M', 'P', '4', 'S') },
-    { AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
-    { AV_CODEC_ID_NONE,      0 },
-};
-
-#define PREROLL_TIME 3100
-
-void ff_put_guid(AVIOContext *s, const ff_asf_guid *g)
-{
-    av_assert0(sizeof(*g) == 16);
-    avio_write(s, *g, sizeof(*g));
-}
-
-static void put_str16(AVIOContext *s, const char *tag)
-{
-    int len;
-    uint8_t *pb;
-    AVIOContext *dyn_buf;
-    if (avio_open_dyn_buf(&dyn_buf) < 0)
-        return;
-
-    avio_put_str16le(dyn_buf, tag);
-    len = avio_close_dyn_buf(dyn_buf, &pb);
-    avio_wl16(s, len);
-    avio_write(s, pb, len);
-    av_freep(&pb);
-}
-
-static int64_t put_header(AVIOContext *pb, const ff_asf_guid *g)
-{
-    int64_t pos;
-
-    pos = avio_tell(pb);
-    ff_put_guid(pb, g);
-    avio_wl64(pb, 24);
-    return pos;
-}
-
-/* update header size */
-static void end_header(AVIOContext *pb, int64_t pos)
-{
-    int64_t pos1;
-
-    pos1 = avio_tell(pb);
-    avio_seek(pb, pos + 16, SEEK_SET);
-    avio_wl64(pb, pos1 - pos);
-    avio_seek(pb, pos1, SEEK_SET);
-}
-
-/* write an asf chunk (only used in streaming case) */
-static void put_chunk(AVFormatContext *s, int type,
-                      int payload_length, int flags)
-{
-    ASFContext *asf = s->priv_data;
-    AVIOContext *pb = s->pb;
-    int length;
-
-    length = payload_length + 8;
-    avio_wl16(pb, type);
-    avio_wl16(pb, length);      // size
-    avio_wl32(pb, asf->seqno);  // sequence number
-    avio_wl16(pb, flags);       // unknown bytes
-    avio_wl16(pb, length);      // size_confirm
-    asf->seqno++;
-}
-
-/* convert from unix to windows time */
-static int64_t unix_to_file_time(int ti)
-{
-    int64_t t;
-
-    t  = ti * INT64_C(10000000);
-    t += INT64_C(116444736000000000);
-    return t;
-}
-
-static int32_t get_send_time(ASFContext *asf, int64_t pres_time, uint64_t *offset)
-{
-    int i;
-    int32_t send_time = 0;
-    *offset = asf->data_offset + DATA_HEADER_SIZE;
-    for (i = 0; i < asf->next_start_sec; i++) {
-        if (pres_time <= asf->index_ptr[i].send_time)
-            break;
-        send_time = asf->index_ptr[i].send_time;
-        *offset   = asf->index_ptr[i].offset;
-    }
-
-    return send_time / 10000;
-}
-
-static int asf_write_markers(AVFormatContext *s)
-{
-    ASFContext *asf = s->priv_data;
-    AVIOContext *pb = s->pb;
-    int i;
-    AVRational scale = {1, 10000000};
-    int64_t hpos = put_header(pb, &ff_asf_marker_header);
-
-    ff_put_guid(pb, &ff_asf_reserved_4);// ASF spec mandates this reserved value
-    avio_wl32(pb, s->nb_chapters);     // markers count
-    avio_wl16(pb, 0);                  // ASF spec mandates 0 for this
-    avio_wl16(pb, 0);                  // name length 0, no name given
-
-    for (i = 0; i < s->nb_chapters; i++) {
-        AVChapter *c = s->chapters[i];
-        AVDictionaryEntry *t = av_dict_get(c->metadata, "title", NULL, 0);
-        int64_t pres_time = av_rescale_q(c->start, c->time_base, scale);
-        uint64_t offset;
-        int32_t send_time = get_send_time(asf, pres_time, &offset);
-        int len = 0;
-        uint8_t *buf;
-        AVIOContext *dyn_buf;
-        if (t) {
-            if (avio_open_dyn_buf(&dyn_buf) < 0)
-                return AVERROR(ENOMEM);
-            avio_put_str16le(dyn_buf, t->value);
-            len = avio_close_dyn_buf(dyn_buf, &buf);
-        }
-        avio_wl64(pb, offset);            // offset of the packet with send_time
-        avio_wl64(pb, pres_time + PREROLL_TIME * 10000); // presentation time
-        avio_wl16(pb, 12 + len);          // entry length
-        avio_wl32(pb, send_time);         // send time
-        avio_wl32(pb, 0);                 // flags, should be 0
-        avio_wl32(pb, len / 2);           // marker desc length in WCHARS!
-        if (t) {
-            avio_write(pb, buf, len);     // marker desc
-            av_freep(&buf);
-        }
-    }
-    end_header(pb, hpos);
-    return 0;
-}
-
-/* write the header (used two times if non streamed) */
-static int asf_write_header1(AVFormatContext *s, int64_t file_size,
-                             int64_t data_chunk_size)
-{
-    ASFContext *asf = s->priv_data;
-    AVIOContext *pb = s->pb;
-    AVDictionaryEntry *tags[5];
-    int header_size, n, extra_size, extra_size2, wav_extra_size, file_time;
-    int has_title;
-    int metadata_count;
-    AVCodecContext *enc;
-    int64_t header_offset, cur_pos, hpos;
-    int bit_rate;
-    int64_t duration;
-
-    ff_metadata_conv(&s->metadata, ff_asf_metadata_conv, NULL);
-
-    tags[0] = av_dict_get(s->metadata, "title", NULL, 0);
-    tags[1] = av_dict_get(s->metadata, "author", NULL, 0);
-    tags[2] = av_dict_get(s->metadata, "copyright", NULL, 0);
-    tags[3] = av_dict_get(s->metadata, "comment", NULL, 0);
-    tags[4] = av_dict_get(s->metadata, "rating", NULL, 0);
-
-    duration       = asf->duration + PREROLL_TIME * 10000;
-    has_title      = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
-    metadata_count = av_dict_count(s->metadata);
-
-    bit_rate = 0;
-    for (n = 0; n < s->nb_streams; n++) {
-        enc = s->streams[n]->codec;
-
-        avpriv_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
-
-        bit_rate += enc->bit_rate;
-    }
-
-    if (asf->is_streamed) {
-        put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
-    }
-
-    ff_put_guid(pb, &ff_asf_header);
-    avio_wl64(pb, -1); /* header length, will be patched after */
-    avio_wl32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */
-    avio_w8(pb, 1); /* ??? */
-    avio_w8(pb, 2); /* ??? */
-
-    /* file header */
-    header_offset = avio_tell(pb);
-    hpos          = put_header(pb, &ff_asf_file_header);
-    ff_put_guid(pb, &ff_asf_my_guid);
-    avio_wl64(pb, file_size);
-    file_time = 0;
-    avio_wl64(pb, unix_to_file_time(file_time));
-    avio_wl64(pb, asf->nb_packets); /* number of packets */
-    avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
-    avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
-    avio_wl64(pb, PREROLL_TIME); /* start time stamp */
-    avio_wl32(pb, (asf->is_streamed || !pb->seekable) ? 3 : 2);  /* ??? */
-    avio_wl32(pb, s->packet_size); /* packet size */
-    avio_wl32(pb, s->packet_size); /* packet size */
-    avio_wl32(pb, bit_rate); /* Nominal data rate in bps */
-    end_header(pb, hpos);
-
-    /* unknown headers */
-    hpos = put_header(pb, &ff_asf_head1_guid);
-    ff_put_guid(pb, &ff_asf_head2_guid);
-    avio_wl32(pb, 6);
-    avio_wl16(pb, 0);
-    end_header(pb, hpos);
-
-    /* title and other infos */
-    if (has_title) {
-        int len;
-        uint8_t *buf;
-        AVIOContext *dyn_buf;
-
-        if (avio_open_dyn_buf(&dyn_buf) < 0)
-            return AVERROR(ENOMEM);
-
-        hpos = put_header(pb, &ff_asf_comment_header);
-
-        for (n = 0; n < FF_ARRAY_ELEMS(tags); n++) {
-            len = tags[n] ? avio_put_str16le(dyn_buf, tags[n]->value) : 0;
-            avio_wl16(pb, len);
-        }
-        len = avio_close_dyn_buf(dyn_buf, &buf);
-        avio_write(pb, buf, len);
-        av_freep(&buf);
-        end_header(pb, hpos);
-    }
-    if (metadata_count) {
-        AVDictionaryEntry *tag = NULL;
-        hpos = put_header(pb, &ff_asf_extended_content_header);
-        avio_wl16(pb, metadata_count);
-        while ((tag = av_dict_get(s->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
-            put_str16(pb, tag->key);
-            avio_wl16(pb, 0);
-            put_str16(pb, tag->value);
-        }
-        end_header(pb, hpos);
-    }
-    /* chapters using ASF markers */
-    if (!asf->is_streamed && s->nb_chapters) {
-        int ret;
-        if (ret = asf_write_markers(s))
-            return ret;
-    }
-    /* stream headers */
-    for (n = 0; n < s->nb_streams; n++) {
-        int64_t es_pos;
-        //        ASFStream *stream = &asf->streams[n];
-
-        enc                 = s->streams[n]->codec;
-        asf->streams[n].num = n + 1;
-        asf->streams[n].seq = 1;
-
-        switch (enc->codec_type) {
-        case AVMEDIA_TYPE_AUDIO:
-            wav_extra_size = 0;
-            extra_size     = 18 + wav_extra_size;
-            extra_size2    = 8;
-            break;
-        default:
-        case AVMEDIA_TYPE_VIDEO:
-            wav_extra_size = enc->extradata_size;
-            extra_size     = 0x33 + wav_extra_size;
-            extra_size2    = 0;
-            break;
-        }
-
-        hpos = put_header(pb, &ff_asf_stream_header);
-        if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
-            ff_put_guid(pb, &ff_asf_audio_stream);
-            ff_put_guid(pb, &ff_asf_audio_conceal_spread);
-        } else {
-            ff_put_guid(pb, &ff_asf_video_stream);
-            ff_put_guid(pb, &ff_asf_video_conceal_none);
-        }
-        avio_wl64(pb, 0); /* ??? */
-        es_pos = avio_tell(pb);
-        avio_wl32(pb, extra_size); /* wav header len */
-        avio_wl32(pb, extra_size2); /* additional data len */
-        avio_wl16(pb, n + 1); /* stream number */
-        avio_wl32(pb, 0); /* ??? */
-
-        if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
-            /* WAVEFORMATEX header */
-            int wavsize = ff_put_wav_header(pb, enc);
-
-            if (wavsize < 0)
-                return -1;
-            if (wavsize != extra_size) {
-                cur_pos = avio_tell(pb);
-                avio_seek(pb, es_pos, SEEK_SET);
-                avio_wl32(pb, wavsize); /* wav header len */
-                avio_seek(pb, cur_pos, SEEK_SET);
-            }
-            /* ERROR Correction */
-            avio_w8(pb, 0x01);
-            if (enc->codec_id == AV_CODEC_ID_ADPCM_G726 || !enc->block_align) {
-                avio_wl16(pb, 0x0190);
-                avio_wl16(pb, 0x0190);
-            } else {
-                avio_wl16(pb, enc->block_align);
-                avio_wl16(pb, enc->block_align);
-            }
-            avio_wl16(pb, 0x01);
-            avio_w8(pb, 0x00);
-        } else {
-            avio_wl32(pb, enc->width);
-            avio_wl32(pb, enc->height);
-            avio_w8(pb, 2); /* ??? */
-            avio_wl16(pb, 40 + enc->extradata_size); /* size */
-
-            /* BITMAPINFOHEADER header */
-            ff_put_bmp_header(pb, enc, ff_codec_bmp_tags, 1, 0);
-        }
-        end_header(pb, hpos);
-    }
-
-    /* media comments */
-
-    hpos = put_header(pb, &ff_asf_codec_comment_header);
-    ff_put_guid(pb, &ff_asf_codec_comment1_header);
-    avio_wl32(pb, s->nb_streams);
-    for (n = 0; n < s->nb_streams; n++) {
-        AVCodec *p;
-        const char *desc;
-        int len;
-        uint8_t *buf;
-        AVIOContext *dyn_buf;
-
-        enc = s->streams[n]->codec;
-        p   = avcodec_find_encoder(enc->codec_id);
-
-        if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
-            avio_wl16(pb, 2);
-        else if (enc->codec_type == AVMEDIA_TYPE_VIDEO)
-            avio_wl16(pb, 1);
-        else
-            avio_wl16(pb, -1);
-
-        if (enc->codec_id == AV_CODEC_ID_WMAV2)
-            desc = "Windows Media Audio V8";
-        else
-            desc = p ? p->name : enc->codec_name;
-
-        if (avio_open_dyn_buf(&dyn_buf) < 0)
-            return AVERROR(ENOMEM);
-
-        avio_put_str16le(dyn_buf, desc);
-        len = avio_close_dyn_buf(dyn_buf, &buf);
-        avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
-
-        avio_write(pb, buf, len);
-        av_freep(&buf);
-
-        avio_wl16(pb, 0); /* no parameters */
-
-        /* id */
-        if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
-            avio_wl16(pb, 2);
-            avio_wl16(pb, enc->codec_tag);
-        } else {
-            avio_wl16(pb, 4);
-            avio_wl32(pb, enc->codec_tag);
-        }
-        if (!enc->codec_tag)
-            return -1;
-    }
-    end_header(pb, hpos);
-
-    /* patch the header size fields */
-
-    cur_pos     = avio_tell(pb);
-    header_size = cur_pos - header_offset;
-    if (asf->is_streamed) {
-        header_size += 8 + 30 + DATA_HEADER_SIZE;
-
-        avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
-        avio_wl16(pb, header_size);
-        avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
-        avio_wl16(pb, header_size);
-
-        header_size -= 8 + 30 + DATA_HEADER_SIZE;
-    }
-    header_size += 24 + 6;
-    avio_seek(pb, header_offset - 14, SEEK_SET);
-    avio_wl64(pb, header_size);
-    avio_seek(pb, cur_pos, SEEK_SET);
-
-    /* movie chunk, followed by packets of packet_size */
-    asf->data_offset = cur_pos;
-    ff_put_guid(pb, &ff_asf_data_header);
-    avio_wl64(pb, data_chunk_size);
-    ff_put_guid(pb, &ff_asf_my_guid);
-    avio_wl64(pb, asf->nb_packets); /* nb packets */
-    avio_w8(pb, 1); /* ??? */
-    avio_w8(pb, 1); /* ??? */
-    return 0;
-}
-
-static int asf_write_header(AVFormatContext *s)
-{
-    ASFContext *asf = s->priv_data;
-
-    s->packet_size  = PACKET_SIZE;
-    asf->nb_packets = 0;
-
-    asf->index_ptr             = av_malloc(sizeof(ASFIndex) * ASF_INDEX_BLOCK);
-    asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
-    asf->maximum_packet        = 0;
-
-    /* the data-chunk-size has to be 50 (DATA_HEADER_SIZE), which is
-     * data_size - asf->data_offset at the moment this function is done.
-     * It is needed to use asf as a streamable format. */
-    if (asf_write_header1(s, 0, DATA_HEADER_SIZE) < 0) {
-        //av_free(asf);
-        return -1;
-    }
-
-    avio_flush(s->pb);
-
-    asf->packet_nb_payloads     = 0;
-    asf->packet_timestamp_start = -1;
-    asf->packet_timestamp_end   = -1;
-    ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
-                      NULL, NULL, NULL, NULL);
-
-    if (s->avoid_negative_ts < 0)
-        s->avoid_negative_ts = 1;
-
-    return 0;
-}
-
-static int asf_write_stream_header(AVFormatContext *s)
-{
-    ASFContext *asf = s->priv_data;
-
-    asf->is_streamed = 1;
-
-    return asf_write_header(s);
-}
-
-static int put_payload_parsing_info(AVFormatContext *s,
-                                    unsigned sendtime, unsigned duration,
-                                    int nb_payloads, int padsize)
-{
-    ASFContext *asf = s->priv_data;
-    AVIOContext *pb = s->pb;
-    int ppi_size, i;
-    int64_t start = avio_tell(pb);
-
-    int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS;
-
-    padsize -= PACKET_HEADER_MIN_SIZE;
-    if (asf->multi_payloads_present)
-        padsize--;
-    av_assert0(padsize >= 0);
-
-    avio_w8(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS);
-    for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++)
-        avio_w8(pb, 0x0);
-
-    if (asf->multi_payloads_present)
-        iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT;
-
-    if (padsize > 0) {
-        if (padsize < 256)
-            iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE;
-        else
-            iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD;
-    }
-    avio_w8(pb, iLengthTypeFlags);
-
-    avio_w8(pb, ASF_PPI_PROPERTY_FLAGS);
-
-    if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD)
-        avio_wl16(pb, padsize - 2);
-    if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE)
-        avio_w8(pb, padsize - 1);
-
-    avio_wl32(pb, sendtime);
-    avio_wl16(pb, duration);
-    if (asf->multi_payloads_present)
-        avio_w8(pb, nb_payloads | ASF_PAYLOAD_FLAGS);
-
-    ppi_size = avio_tell(pb) - start;
-
-    return ppi_size;
-}
-
-static void flush_packet(AVFormatContext *s)
-{
-    ASFContext *asf = s->priv_data;
-    int packet_hdr_size, packet_filled_size;
-
-    av_assert0(asf->packet_timestamp_end >= asf->packet_timestamp_start);
-
-    if (asf->is_streamed)
-        put_chunk(s, 0x4424, s->packet_size, 0);
-
-    packet_hdr_size = put_payload_parsing_info(s,
-                                               asf->packet_timestamp_start,
-                                               asf->packet_timestamp_end - asf->packet_timestamp_start,
-                                               asf->packet_nb_payloads,
-                                               asf->packet_size_left);
-
-    packet_filled_size = PACKET_SIZE - asf->packet_size_left;
-    av_assert0(packet_hdr_size <= asf->packet_size_left);
-    memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left);
-
-    avio_write(s->pb, asf->packet_buf, s->packet_size - packet_hdr_size);
-
-    avio_flush(s->pb);
-    asf->nb_packets++;
-    asf->packet_nb_payloads     = 0;
-    asf->packet_timestamp_start = -1;
-    asf->packet_timestamp_end   = -1;
-    ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
-                      NULL, NULL, NULL, NULL);
-}
-
-static void put_payload_header(AVFormatContext *s, ASFStream *stream,
-                               int64_t presentation_time, int m_obj_size,
-                               int m_obj_offset, int payload_len, int flags)
-{
-    ASFContext *asf = s->priv_data;
-    AVIOContext *pb = &asf->pb;
-    int val;
-
-    val = stream->num;
-    if (flags & AV_PKT_FLAG_KEY)
-        val |= ASF_PL_FLAG_KEY_FRAME;
-    avio_w8(pb, val);
-
-    avio_w8(pb, stream->seq);     // Media object number
-    avio_wl32(pb, m_obj_offset);  // Offset Into Media Object
-
-    // Replicated Data shall be at least 8 bytes long.
-    // The first 4 bytes of data shall contain the
-    // Size of the Media Object that the payload belongs to.
-    // The next 4 bytes of data shall contain the
-    // Presentation Time for the media object that the payload belongs to.
-    avio_w8(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH);
-
-    avio_wl32(pb, m_obj_size);        // Replicated Data - Media Object Size
-    avio_wl32(pb, (uint32_t) presentation_time); // Replicated Data - Presentation Time
-
-    if (asf->multi_payloads_present) {
-        avio_wl16(pb, payload_len);   // payload length
-    }
-}
-
-static void put_frame(AVFormatContext *s, ASFStream *stream, AVStream *avst,
-                      int64_t timestamp, const uint8_t *buf,
-                      int m_obj_size, int flags)
-{
-    ASFContext *asf = s->priv_data;
-    int m_obj_offset, payload_len, frag_len1;
-
-    m_obj_offset = 0;
-    while (m_obj_offset < m_obj_size) {
-        payload_len = m_obj_size - m_obj_offset;
-        if (asf->packet_timestamp_start == -1) {
-            asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT);
-
-            asf->packet_size_left = PACKET_SIZE;
-            if (asf->multi_payloads_present) {
-                frag_len1 = MULTI_PAYLOAD_CONSTANT - 1;
-            } else {
-                frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH;
-            }
-            asf->packet_timestamp_start = timestamp;
-        } else {
-            // multi payloads
-            frag_len1 = asf->packet_size_left -
-                        PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS -
-                        PACKET_HEADER_MIN_SIZE - 1;
-
-            if (frag_len1 < payload_len &&
-                avst->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
-                flush_packet(s);
-                continue;
-            }
-        }
-        if (frag_len1 > 0) {
-            if (payload_len > frag_len1)
-                payload_len = frag_len1;
-            else if (payload_len == (frag_len1 - 1))
-                payload_len = frag_len1 - 2;  // additional byte need to put padding length
-
-            put_payload_header(s, stream, timestamp + PREROLL_TIME,
-                               m_obj_size, m_obj_offset, payload_len, flags);
-            avio_write(&asf->pb, buf, payload_len);
-
-            if (asf->multi_payloads_present)
-                asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS);
-            else
-                asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD);
-            asf->packet_timestamp_end = timestamp;
-
-            asf->packet_nb_payloads++;
-        } else {
-            payload_len = 0;
-        }
-        m_obj_offset += payload_len;
-        buf          += payload_len;
-
-        if (!asf->multi_payloads_present)
-            flush_packet(s);
-        else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1))
-            flush_packet(s);
-    }
-    stream->seq++;
-}
-
-static int update_index(AVFormatContext *s, int start_sec,
-                         uint32_t packet_number, uint16_t packet_count,
-                         uint64_t packet_offset)
-{
-    ASFContext *asf = s->priv_data;
-
-    if (start_sec > asf->next_start_sec) {
-        int i;
-
-        if (!asf->next_start_sec) {
-            asf->next_packet_number = packet_number;
-            asf->next_packet_count  = packet_count;
-            asf->next_packet_offset = packet_offset;
-        }
-
-        if (start_sec > asf->nb_index_memory_alloc) {
-            int err;
-            asf->nb_index_memory_alloc = (start_sec + ASF_INDEX_BLOCK) & ~(ASF_INDEX_BLOCK - 1);
-            if ((err = av_reallocp_array(&asf->index_ptr,
-                                         asf->nb_index_memory_alloc,
-                                         sizeof(*asf->index_ptr))) < 0) {
-                asf->nb_index_memory_alloc = 0;
-                return err;
-            }
-        }
-        for (i = asf->next_start_sec; i < start_sec; i++) {
-            asf->index_ptr[i].packet_number = asf->next_packet_number;
-            asf->index_ptr[i].packet_count  = asf->next_packet_count;
-            asf->index_ptr[i].send_time     = asf->next_start_sec * INT64_C(10000000);
-            asf->index_ptr[i].offset        = asf->next_packet_offset;
-
-        }
-    }
-    asf->maximum_packet     = FFMAX(asf->maximum_packet, packet_count);
-    asf->next_packet_number = packet_number;
-    asf->next_packet_count  = packet_count;
-    asf->next_packet_offset = packet_offset;
-    asf->next_start_sec     = start_sec;
-
-    return 0;
-}
-
-static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    ASFContext *asf = s->priv_data;
-    AVIOContext *pb = s->pb;
-    ASFStream *stream;
-    AVCodecContext *codec;
-    uint32_t packet_number;
-    int64_t pts;
-    int start_sec;
-    int flags = pkt->flags;
-    int ret;
-    uint64_t offset = avio_tell(pb);
-
-    codec  = s->streams[pkt->stream_index]->codec;
-    stream = &asf->streams[pkt->stream_index];
-
-    if (codec->codec_type == AVMEDIA_TYPE_AUDIO)
-        flags &= ~AV_PKT_FLAG_KEY;
-
-    pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts;
-    av_assert0(pts != AV_NOPTS_VALUE);
-    pts *= 10000;
-    asf->duration = FFMAX(asf->duration, pts + pkt->duration * 10000);
-
-    packet_number = asf->nb_packets;
-    put_frame(s, stream, s->streams[pkt->stream_index],
-              pkt->dts, pkt->data, pkt->size, flags);
-
-    start_sec = (int)((PREROLL_TIME * 10000 + pts + ASF_INDEXED_INTERVAL - 1)
-              / ASF_INDEXED_INTERVAL);
-
-    /* check index */
-    if ((!asf->is_streamed) && (flags & AV_PKT_FLAG_KEY)) {
-        uint16_t packet_count = asf->nb_packets - packet_number;
-        ret = update_index(s, start_sec, packet_number, packet_count, offset);
-        if (ret < 0)
-            return ret;
-    }
-    asf->end_sec = start_sec;
-
-    return 0;
-}
-
-static int asf_write_index(AVFormatContext *s, ASFIndex *index,
-                           uint16_t max, uint32_t count)
-{
-    AVIOContext *pb = s->pb;
-    int i;
-
-    ff_put_guid(pb, &ff_asf_simple_index_header);
-    avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2) * count);
-    ff_put_guid(pb, &ff_asf_my_guid);
-    avio_wl64(pb, ASF_INDEXED_INTERVAL);
-    avio_wl32(pb, max);
-    avio_wl32(pb, count);
-    for (i = 0; i < count; i++) {
-        avio_wl32(pb, index[i].packet_number);
-        avio_wl16(pb, index[i].packet_count);
-    }
-
-    return 0;
-}
-
-static int asf_write_trailer(AVFormatContext *s)
-{
-    ASFContext *asf = s->priv_data;
-    int64_t file_size, data_size;
-    int ret;
-
-    /* flush the current packet */
-    if (asf->pb.buf_ptr > asf->pb.buffer)
-        flush_packet(s);
-
-    /* write index */
-    data_size = avio_tell(s->pb);
-    if (!asf->is_streamed && asf->next_start_sec) {
-        if ((ret = update_index(s, asf->end_sec + 1, 0, 0, 0)) < 0)
-            return ret;
-        asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->next_start_sec);
-    }
-    avio_flush(s->pb);
-
-    if (asf->is_streamed || !s->pb->seekable) {
-        put_chunk(s, 0x4524, 0, 0); /* end of stream */
-    } else {
-        /* rewrite an updated header */
-        file_size = avio_tell(s->pb);
-        avio_seek(s->pb, 0, SEEK_SET);
-        asf_write_header1(s, file_size, data_size - asf->data_offset);
-    }
-
-    av_freep(&asf->index_ptr);
-    return 0;
-}
-
-#if CONFIG_ASF_MUXER
-AVOutputFormat ff_asf_muxer = {
-    .name           = "asf",
-    .long_name      = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
-    .mime_type      = "video/x-ms-asf",
-    .extensions     = "asf,wmv,wma",
-    .priv_data_size = sizeof(ASFContext),
-    .audio_codec    = AV_CODEC_ID_WMAV2,
-    .video_codec    = AV_CODEC_ID_MSMPEG4V3,
-    .write_header   = asf_write_header,
-    .write_packet   = asf_write_packet,
-    .write_trailer  = asf_write_trailer,
-    .flags          = AVFMT_GLOBALHEADER,
-    .codec_tag      = (const AVCodecTag * const []) {
-        codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0
-    },
-};
-#endif /* CONFIG_ASF_MUXER */
-
-#if CONFIG_ASF_STREAM_MUXER
-AVOutputFormat ff_asf_stream_muxer = {
-    .name           = "asf_stream",
-    .long_name      = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
-    .mime_type      = "video/x-ms-asf",
-    .extensions     = "asf,wmv,wma",
-    .priv_data_size = sizeof(ASFContext),
-    .audio_codec    = AV_CODEC_ID_WMAV2,
-    .video_codec    = AV_CODEC_ID_MSMPEG4V3,
-    .write_header   = asf_write_stream_header,
-    .write_packet   = asf_write_packet,
-    .write_trailer  = asf_write_trailer,
-    .flags          = AVFMT_GLOBALHEADER,
-    .codec_tag      = (const AVCodecTag * const []) {
-        codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0
-    },
-};
-#endif /* CONFIG_ASF_STREAM_MUXER */