+++ /dev/null
-/*
- * MOV, 3GP, MP4 encoder.
- * Copyright (c) 2003 Thomas Raivio.
- *
- * This library 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 of the License, or (at your option) any later version.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include "avformat.h"
-#include "avio.h"
-#include <time.h>
-
-#undef NDEBUG
-#include <assert.h>
-
-/*
- * Limitations
- * - Currently supports h.263, MPEG4 video codecs, and AMR audio codec.
- */
-
-#define MOV_INDEX_CLUSTER_SIZE 16384
-#define globalTimescale 1000
-
-typedef struct MOVIentry {
- unsigned int flags, pos, len;
- unsigned int entries;
-} MOVIentry;
-
-typedef struct MOVIndex {
- int entry;
- int samples;
- int mdat_size;
- offset_t mdat_pos;
- int ents_allocated;
- long timescale;
- long time;
- long frameDuration;
- long sampleDelta;
- int trackID;
- AVCodecContext *enc;
-
- int vosLen;
- uint8_t *vosData;
- MOVIentry** cluster;
-} MOVTrack;
-
-typedef struct {
- long time;
- int nb_streams;
- offset_t movi_list;
- long timescale;
- MOVTrack tracks[MAX_STREAMS];
-} MOVContext;
-
-//FIXME supprt 64bit varaint with wide placeholders
-static int updateSize (ByteIOContext *pb, int pos)
-{
- long curpos = url_ftell(pb);
- url_fseek(pb, pos, SEEK_SET);
- put_be32(pb, curpos - pos); /* rewrite size */
- url_fseek(pb, curpos, SEEK_SET);
-
- return curpos - pos;
-}
-
-static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int i;
- put_be32(pb, 16+track->entry*4); /* size */
- put_tag(pb, "stco");
- put_be32(pb, 0); /* version & flags */
- put_be32(pb, track->entry); /* entry count */
- for (i=0; i<track->entry; i++) {
- int cl = i / MOV_INDEX_CLUSTER_SIZE;
- int id = i % MOV_INDEX_CLUSTER_SIZE;
- put_be32(pb, track->cluster[cl][id].pos);
- }
- return 16+track->entry*4;
-}
-
-static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int i, size;
-
- if(track->cluster[0][0].entries != 0)
- size = 20;
- else
- size = 20+track->samples*4;
- put_be32(pb, size); /* size */
- put_tag(pb, "stsz");
- put_be32(pb, 0); /* version & flags */
-
- /* TODO: Ugly (and false) assumption: if we have a chunk of samples, assume
- * all sizes are same */
- if(track->cluster[0][0].entries != 0) {
- int sSize = track->cluster[0][0].len/track->cluster[0][0].entries;
- put_be32(pb, sSize); /* sample size */
- put_be32(pb, track->samples); /* sample count */
- }
- else
- {
- put_be32(pb, 0); /* sample size */
- put_be32(pb, track->samples); /* sample count */
- for (i=0; i<track->samples; i++) {
- int cl = i / MOV_INDEX_CLUSTER_SIZE;
- int id = i % MOV_INDEX_CLUSTER_SIZE;
- put_be32(pb, track->cluster[cl][id].len);
- }
- }
- return size;
-}
-
-static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int size;
- if(track->cluster[0][0].entries != 0)
- size = 16+track->entry*4*3;
- else
- size = 0x1c;
- put_be32(pb, size); // size
- put_tag(pb, "stsc");
- put_be32(pb, 0); // version & flags
- if(track->cluster[0][0].entries != 0) {
- int i;
- put_be32(pb, track->entry); // entry count
- for (i=0; i<track->entry; i++) {
- int cl = i / MOV_INDEX_CLUSTER_SIZE;
- int id = i % MOV_INDEX_CLUSTER_SIZE;
- put_be32(pb, i+1); // first chunk
- put_be32(pb, track->cluster[cl][id].entries);
- put_be32(pb, 0x1); // sample description index
- }
- }
- else {
- put_be32(pb, 1); // entry count
- put_be32(pb, 0x1); // first chunk
- put_be32(pb, 0x1); // samples per chunk
- put_be32(pb, 0x1); // sample description index
- }
-
- return size;
-}
-
-//FIXME keyframes?
-static int mov_write_stss_tag(ByteIOContext *pb) //TRA OK
-{
- put_be32(pb, 0x14); /* size */
- put_tag(pb, "stss");
- put_be32(pb, 0); /* version & flags */
- put_be32(pb, 1); /* entry count */
- put_be32(pb, 0x1); /* sample number */
- return 0x14;
-}
-
-static int mov_write_damr_tag(ByteIOContext *pb)
-{
- put_be32(pb, 0x11); /* size */
- put_tag(pb, "damr");
- put_tag(pb, "FFMP");
- put_byte(pb, 0);
- put_be16(pb, 0x81ff); /* Mode set (all modes for AMR_NB) */
- put_be16(pb, 1); /* Mode change period (no restriction) */
- return 0x11;
-}
-
-static int mov_write_samr_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- /* "samr" for AMR NB, "sawb" for AMR WB */
- put_tag(pb, "samr");
- put_be32(pb, 0); /* Reserved */
- put_be16(pb, 0); /* Reserved */
- put_be16(pb, 1); /* Data-reference index, XXX == 1 */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
-
- put_be16(pb, 2); /* Reserved */
- put_be16(pb, 0x10); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be16(pb, track->timescale); /* Time scale */
- put_be16(pb, 0); /* Reserved */
-
- mov_write_damr_tag(pb);
- return updateSize (pb, pos);
-}
-
-static int mov_write_d263_tag(ByteIOContext *pb)
-{
- put_be32(pb, 0xf); /* size */
- put_tag(pb, "d263");
- put_tag(pb, "FFMP");
- put_be16(pb, 0x0a);
- put_byte(pb, 0);
- return 0xf;
-}
-
-static int mov_write_s263_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "s263");
- put_be32(pb, 0); /* Reserved */
- put_be16(pb, 0); /* Reserved */
- put_be16(pb, 1); /* Data-reference index */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be16(pb, track->enc->width); /* Video width */
- put_be16(pb, track->enc->height); /* Video height */
- put_be32(pb, 0x00480000); /* Reserved */
- put_be32(pb, 0x00480000); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be16(pb, 1); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be32(pb, 0); /* Reserved */
- put_be16(pb, 0x18); /* Reserved */
- put_be16(pb, 0xffff); /* Reserved */
- mov_write_d263_tag(pb);
- return updateSize (pb, pos);
-}
-
-static unsigned int esdsLength(unsigned int len)
-{
- unsigned int result = 0;
- unsigned char b = len & 0x7f;
- result += b;
- b = (len >> 8) & 0x7f;
- result += (b + 0x80) << 8;
- b = (len >> 16) & 0x7f;
- result += (b + 0x80) << 16;
- b = (len >> 24) & 0x7f;
- result += (b + 0x80) << 24;
- return result;
-}
-
-static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
-{
- put_be32(pb, track->vosLen+18+14+17);
- put_tag(pb, "esds");
- put_be32(pb, 0); // Version
-
- put_byte(pb, 0x03); // tag = ES_DescriptorTag
- put_be32(pb, esdsLength(track->vosLen+18+14)); // Length
- put_be16(pb, 0x0001); // ID (= 1)
- put_byte(pb, 0x00); // flags (= no flags)
-
-// Decoderconfigdescriptor = 4
- put_byte(pb, 0x04); // tag = DecoderConfigDescriptor
- put_be32(pb, esdsLength(track->vosLen+18)); // Length
- put_byte(pb, 0x20); // Object type indication (Visual 14496-2)
- put_byte(pb, 0x11); // flags (= Visualstream)
- put_byte(pb, 0x0); // Buffersize DB (24 bits)
- put_be16(pb, 0x0dd2); // Buffersize DB
-
- // TODO: find real values for these
- put_be32(pb, 0x0002e918); // maxbitrate
- put_be32(pb, 0x00017e6b); // avg bitrate
-
-// Decoderspecific info Tag = 5
- put_byte(pb, 0x05); // tag = Decoderspecific info
- put_be32(pb, esdsLength(track->vosLen)); // length
- put_buffer(pb, track->vosData, track->vosLen);
-
- put_byte(pb, 0x06);
- put_be32(pb, esdsLength(1)); // length
- put_byte(pb, 0x02);
- return track->vosLen+18+14+17;
-}
-
-static int mov_write_mp4v_tag(ByteIOContext *pb, MOVTrack* track) // Basic
-{
- int pos = url_ftell(pb);
-
- put_be32(pb, 0);
- put_tag(pb, "mp4v");
- put_be32(pb, 0); // Reserved
- put_be16(pb, 0); // Reserved
- put_be16(pb, 1); // Data-reference index
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be16(pb, track->enc->width); // Width
- put_be16(pb, track->enc->height); // Height
- put_be32(pb, 0x00480000); // Reserved
- put_be32(pb, 0x00480000); // Reserved
- put_be32(pb, 0); // Reserved
- put_be16(pb, 1); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be32(pb, 0); // Reserved
- put_be16(pb, 24); // Reserved
- put_be16(pb, 0xFFFF); // Reserved
- mov_write_esds_tag(pb, track);
- return updateSize(pb, pos);
-}
-
-static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "stsd");
- put_be32(pb, 0); /* version & flags */
- put_be32(pb, 1); /* entry count */
- if (track->enc->codec_type == CODEC_TYPE_VIDEO) {
- if (track->enc->codec_id == CODEC_ID_H263)
- mov_write_s263_tag(pb, track);
- else if (track->enc->codec_id == CODEC_ID_MPEG4)
- mov_write_mp4v_tag(pb, track);
- }
- else if (track->enc->codec_type == CODEC_TYPE_AUDIO) {
- if (track->enc->codec_id == CODEC_ID_AMR_NB)
- mov_write_samr_tag(pb, track);
- }
- return updateSize(pb, pos);
-}
-
-static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
-{
- put_be32(pb, 0x18); /* size */
- put_tag(pb, "stts");
- put_be32(pb, 0); /* version & flags */
- put_be32(pb, 1); /* entry count */
-
- put_be32(pb, track->samples); /* sample count */
- put_be32(pb, track->sampleDelta); /* sample delta */
- return 0x18;
-}
-
-static int mov_write_dref_tag(ByteIOContext *pb)
-{
- put_be32(pb, 28); /* size */
- put_tag(pb, "dref");
- put_be32(pb, 0); /* version & flags */
- put_be32(pb, 1); /* entry count */
-
- put_be32(pb, 0xc); /* size */
- put_tag(pb, "url ");
- put_be32(pb, 1); /* version & flags */
-
- return 28;
-}
-
-static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "stbl");
- mov_write_stsd_tag(pb, track);
- mov_write_stts_tag(pb, track);
- if (track->enc->codec_type == CODEC_TYPE_VIDEO)
- mov_write_stss_tag(pb);
- mov_write_stsc_tag(pb, track);
- mov_write_stsz_tag(pb, track);
- mov_write_stco_tag(pb, track);
- return updateSize(pb, pos);
-}
-
-static int mov_write_dinf_tag(ByteIOContext *pb)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "dinf");
- mov_write_dref_tag(pb);
- return updateSize(pb, pos);
-}
-
-static int mov_write_smhd_tag(ByteIOContext *pb)
-{
- put_be32(pb, 16); /* size */
- put_tag(pb, "smhd");
- put_be32(pb, 0); /* version & flags */
- put_be16(pb, 0); /* reserved (balance, normally = 0) */
- put_be16(pb, 0); /* reserved */
- return 16;
-}
-
-static int mov_write_vmhd_tag(ByteIOContext *pb)
-{
- put_be32(pb, 0x14); /* size (always 0x14) */
- put_tag(pb, "vmhd");
- put_be32(pb, 0x01); /* version & flags */
- put_be64(pb, 0); /* reserved (graphics mode = copy) */
- return 0x14;
-}
-
-static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "minf");
- if(track->enc->codec_type == CODEC_TYPE_VIDEO)
- mov_write_vmhd_tag(pb);
- else
- mov_write_smhd_tag(pb);
- mov_write_dinf_tag(pb);
- mov_write_stbl_tag(pb, track);
- return updateSize(pb, pos);
-}
-
-static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int size = 0;
- size = 45;
- put_be32(pb, size); /* size */
- put_tag(pb, "hdlr");
- put_be32(pb, 0); /* Version & flags */
- put_be32(pb, 0); /* reserved */
- if(track->enc->codec_type == CODEC_TYPE_VIDEO)
- put_tag(pb, "vide"); /* handler type */
- else
- put_tag(pb, "soun"); /* handler type */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- put_byte(pb, 0); /* reserved */
- if(track->enc->codec_type == CODEC_TYPE_VIDEO)
- put_buffer(pb, "VideoHandler", 13);
- else
- put_buffer(pb, "SoundHandler", 13);
- return size;
-}
-
-static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
-{
- put_be32(pb, 32); /* size */
- put_tag(pb, "mdhd");
- put_be32(pb, 0); /* Version & flags */
- put_be32(pb, track->time); /* creation time */
- put_be32(pb, track->time); /* modification time */
- put_be32(pb, track->timescale); /* time scale */
-
- put_be32(pb, track->timescale*track->entry*track->frameDuration/globalTimescale); /* duration */
- put_be16(pb, 0); /* language, 0 = english */
- put_be16(pb, 0); /* reserved (quality) */
- return 32;
-}
-
-static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "mdia");
- mov_write_mdhd_tag(pb, track);
- mov_write_hdlr_tag(pb, track);
- mov_write_minf_tag(pb, track);
- return updateSize(pb, pos);
-}
-
-static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
-{
- put_be32(pb, 0x5c); /* size (always 0x5c) */
- put_tag(pb, "tkhd");
- put_be32(pb, 1); /* version & flags (track enabled) */
- put_be32(pb, track->time); /* creation time */
- put_be32(pb, track->time); /* modification time */
- put_be32(pb, track->trackID); /* track-id */
- put_be32(pb, 0); /* reserved */
- put_be32(pb, track->entry*track->frameDuration); /* duration */
-
- put_be32(pb, 0); /* reserved */
- put_be32(pb, 0); /* reserved */
- put_be32(pb, 0x0); /* reserved (Layer & Alternate group) */
- /* Volume, only for audio */
- if(track->enc->codec_type == CODEC_TYPE_AUDIO)
- put_be16(pb, 0x0100);
- else
- put_be16(pb, 0);
- put_be16(pb, 0); /* reserved */
-
- /* Matrix structure */
- put_be32(pb, 0x00010000); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x00010000); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x40000000); /* reserved */
-
- /* Track width and height, for visual only */
- if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
- put_be32(pb, 0x01400000);
- put_be32(pb, 0x00f00000);
- }
- else {
- put_be32(pb, 0);
- put_be32(pb, 0);
- }
- return 0x5c;
-}
-
-static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
-{
- int pos = url_ftell(pb);
- put_be32(pb, 0); /* size */
- put_tag(pb, "trak");
- mov_write_tkhd_tag(pb, track);
- mov_write_mdia_tag(pb, track);
- return updateSize(pb, pos);
-}
-
-/* TODO: Not sorted out, but not necessary either */
-static int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
-{
- put_be32(pb, 0x15); /* size */
- put_tag(pb, "iods");
- put_be32(pb, 0); /* version & flags */
- put_be16(pb, 0x1007);
- put_byte(pb, 0);
- put_be16(pb, 0x4fff);
- put_be16(pb, 0xfffe);
- put_be16(pb, 0x01ff);
- return 0x15;
-}
-
-static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
-{
- int maxTrackID = 1, maxTrackLen = 0, i;
-
- put_be32(pb, 0x6c); /* size (always 0x6c) */
- put_tag(pb, "mvhd");
- put_be32(pb, 0); /* version & flags */
- put_be32(pb, mov->time); /* creation time */
- put_be32(pb, mov->time); /* modification time */
- put_be32(pb, mov->timescale); /* timescale */
- for (i=0; i<MAX_STREAMS; i++) {
- if(mov->tracks[i].entry > 0) {
- if(maxTrackLen < mov->tracks[i].entry*mov->tracks[i].frameDuration)
- maxTrackLen = mov->tracks[i].entry*mov->tracks[i].frameDuration;
- if(maxTrackID < mov->tracks[i].trackID)
- maxTrackID = mov->tracks[i].trackID;
- }
- }
- put_be32(pb, maxTrackLen); /* duration of longest track */
-
- put_be32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
- put_be16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
- put_be16(pb, 0); /* reserved */
- put_be32(pb, 0); /* reserved */
- put_be32(pb, 0); /* reserved */
-
- /* Matrix structure */
- put_be32(pb, 0x00010000); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x00010000); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x0); /* reserved */
- put_be32(pb, 0x40000000); /* reserved */
-
- put_be32(pb, 0); /* reserved (preview time) */
- put_be32(pb, 0); /* reserved (preview duration) */
- put_be32(pb, 0); /* reserved (poster time) */
- put_be32(pb, 0); /* reserved (selection time) */
- put_be32(pb, 0); /* reserved (selection duration) */
- put_be32(pb, 0); /* reserved (current time) */
- put_be32(pb, maxTrackID+1); /* Next track id */
- return 0x6c;
-}
-
-static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov)
-{
- int pos, i;
- pos = url_ftell(pb);
- put_be32(pb, 0); /* size placeholder*/
- put_tag(pb, "moov");
- mov->timescale = globalTimescale;
-
- for (i=0; i<MAX_STREAMS; i++) {
- if(mov->tracks[i].entry > 0) {
- if(mov->tracks[i].enc->codec_type == CODEC_TYPE_VIDEO) {
- mov->tracks[i].timescale = globalTimescale;
- mov->tracks[i].sampleDelta = mov->tracks[i].frameDuration =
- globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
- }
- else if(mov->tracks[i].enc->codec_type == CODEC_TYPE_AUDIO) {
- /* If AMR, track timescale = 8000, AMR_WB = 16000 */
- if(mov->tracks[i].enc->codec_id == CODEC_ID_AMR_NB) {
- mov->tracks[i].frameDuration = 20;
- mov->tracks[i].sampleDelta = 160;
- mov->tracks[i].timescale = 8000;
- }
- else {
- mov->tracks[i].timescale = globalTimescale;
- mov->tracks[i].frameDuration =
- globalTimescale*mov->tracks[i].enc->frame_rate_base/mov->tracks[i].enc->frame_rate;
- }
- }
- mov->tracks[i].time = mov->time;
- mov->tracks[i].trackID = i+1;
- }
- }
-
- mov_write_mvhd_tag(pb, mov);
- //mov_write_iods_tag(pb, mov);
- for (i=0; i<MAX_STREAMS; i++) {
- if(mov->tracks[i].entry > 0) {
- mov_write_trak_tag(pb, &(mov->tracks[i]));
- }
- }
-
- return updateSize(pb, pos);
-}
-
-int mov_write_mdat_tag(ByteIOContext *pb, MOVTrack* track)
-{
- track->mdat_pos = url_ftell(pb);
- put_be32(pb, 0); /* size placeholder*/
- put_tag(pb, "mdat");
- return 0;
-}
-
-/* TODO: This needs to be more general */
-int mov_write_ftyp_tag(ByteIOContext *pb)
-{
- put_be32(pb, 0x14 ); /* size */
- put_tag(pb, "ftyp");
- put_tag(pb, "3gp4");
- put_be32(pb, 0x200 );
- put_tag(pb, "3gp4");
- return 0x14;
-}
-
-static int mov_write_header(AVFormatContext *s)
-{
- ByteIOContext *pb = &s->pb;
-
- /* write ftyp */
- mov_write_ftyp_tag(pb);
-
- put_flush_packet(pb);
-
- return 0;
-}
-
-static int Timestamp() {
- time_t ltime;
- time ( <ime );
- return ltime+(24107*86400);
-}
-
-static int mov_write_packet(AVFormatContext *s, int stream_index,
- const uint8_t *buf, int size, int64_t pts)
-{
- MOVContext *mov = s->priv_data;
- ByteIOContext *pb = &s->pb;
- AVCodecContext *enc;
- int cl, id;
-
- enc = &s->streams[stream_index]->codec;
- if (!url_is_streamed(&s->pb)) {
- MOVTrack* trk = &mov->tracks[stream_index];
- int sampleCount = 0;
-
- /* We must find out how many AMR blocks there are in one packet */
- if(enc->codec_id == CODEC_ID_AMR_NB) {
- static uint16_t packed_size[16] = {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
- int len = 0;
-
- while(len < size && sampleCount < 100) {
- len += packed_size[(buf[len] >> 3) & 0x0F];
- sampleCount++;
- }
- }
-
- if(enc->codec_id == CODEC_ID_MPEG4 &&
- trk->vosLen == 0)
- {
- assert(enc->extradata_size);
-
- trk->vosLen = enc->extradata_size;
- trk->vosData = av_malloc(trk->vosLen);
- memcpy(trk->vosData, enc->extradata, trk->vosLen);
- }
-
- cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
- id = trk->entry % MOV_INDEX_CLUSTER_SIZE;
-
- if (trk->ents_allocated <= trk->entry) {
- trk->cluster = av_realloc(trk->cluster, (cl+1)*sizeof(void*));
- if (!trk->cluster)
- return -1;
- trk->cluster[cl] = av_malloc(MOV_INDEX_CLUSTER_SIZE*sizeof(MOVIentry));
- if (!trk->cluster[cl])
- return -1;
- trk->ents_allocated += MOV_INDEX_CLUSTER_SIZE;
- }
- if(stream_index == 0 && trk->entry == 0) {
- mov_write_mdat_tag(pb, trk);
- mov->time = Timestamp();
- }
-
- trk->cluster[cl][id].pos = url_ftell(pb) - mov->movi_list;
- trk->cluster[cl][id].len = size;
- trk->cluster[cl][id].entries = sampleCount;
- trk->enc = enc;
- trk->entry++;
- if(sampleCount == 0)
- trk->samples++;
- else
- trk->samples += sampleCount;
- trk->mdat_size += size;
- }
- put_buffer(pb, buf, size);
-
- put_flush_packet(pb);
- return 0;
-}
-
-static int mov_write_trailer(AVFormatContext *s)
-{
- MOVContext *mov = s->priv_data;
- ByteIOContext *pb = &s->pb;
- int res = 0;
- int i, j;
- offset_t file_size;
-
- file_size = url_ftell(pb);
- j = 0;
-
- /* Write size of mdat tag */
- for (i=0; i<MAX_STREAMS; i++) {
- if(mov->tracks[i].ents_allocated > 0) {
- j += mov->tracks[i].mdat_size;
- }
- }
- url_fseek(pb, mov->tracks[0].mdat_pos, SEEK_SET);
- put_be32(pb, j+8);
- url_fseek(pb, file_size, SEEK_SET);
-
- mov_write_moov_tag(pb, mov);
-
- for (i=0; i<MAX_STREAMS; i++) {
- for (j=0; j<mov->tracks[i].ents_allocated/MOV_INDEX_CLUSTER_SIZE; j++) {
- av_free(mov->tracks[i].cluster[j]);
- }
- av_free(mov->tracks[i].cluster);
- mov->tracks[i].cluster = NULL;
- mov->tracks[i].ents_allocated = mov->tracks[i].entry = 0;
- }
- put_flush_packet(pb);
-
- return res;
-}
-
-static AVOutputFormat mov_oformat = {
- "mov",
- "mov format",
- NULL,
- "mov",
- sizeof(MOVContext),
- CODEC_ID_MP2,
- CODEC_ID_MPEG4,
- mov_write_header,
- mov_write_packet,
- mov_write_trailer,
-};
-
-static AVOutputFormat _3gp_oformat = {
- "3gp",
- "3gp format",
- NULL,
- "3gp",
- sizeof(MOVContext),
- CODEC_ID_AMR_NB,
- CODEC_ID_H263,
- mov_write_header,
- mov_write_packet,
- mov_write_trailer,
-};
-
-static AVOutputFormat mp4_oformat = {
- "mp4",
- "mp4 format",
- NULL,
- "mp4",
- sizeof(MOVContext),
- CODEC_ID_AAC,
- CODEC_ID_MPEG4,
- mov_write_header,
- mov_write_packet,
- mov_write_trailer,
-};
-
-int movenc_init(void)
-{
- av_register_output_format(&mov_oformat);
- av_register_output_format(&_3gp_oformat);
- av_register_output_format(&mp4_oformat);
- return 0;
-}
projects / synfig.git / blobdiff