89 static void mov_cenc_write_encrypted(MOVMuxCencContext* ctx, AVIOContext *pb,  in mov_cenc_write_encrypted()  argument
100         avio_write(pb, chunk, cur_size);  in mov_cenc_write_encrypted()
167 int ff_mov_cenc_write_packet(MOVMuxCencContext* ctx, AVIOContext *pb,  in ff_mov_cenc_write_packet()  argument
182     mov_cenc_write_encrypted(ctx, pb, buf_in, size);  in ff_mov_cenc_write_packet()
192 int ff_mov_cenc_avc_parse_nal_units(MOVMuxCencContext* ctx, AVIOContext *pb,  in ff_mov_cenc_avc_parse_nal_units()  argument
214         avio_wb32(pb, nal_end - nal_start);  in ff_mov_cenc_avc_parse_nal_units()
215         avio_w8(pb, *nal_start);  in ff_mov_cenc_avc_parse_nal_units()
216         mov_cenc_write_encrypted(ctx, pb, nal_start + 1, nal_end - nal_start - 1);  in ff_mov_cenc_avc_parse_nal_units()
233     int nal_length_size, AVIOContext *pb, const uint8_t *buf_in, int size)  in ff_mov_cenc_avc_write_nal_units()  argument
252         avio_write(pb, buf_in, nal_length_size + 1);  in ff_mov_cenc_avc_write_nal_units()
266         mov_cenc_write_encrypted(ctx, pb, buf_in + 1, nalsize - 1);  in ff_mov_cenc_avc_write_nal_units()
282 static int64_t update_size(AVIOContext *pb, int64_t pos)  in update_size()  argument
284     int64_t curpos = avio_tell(pb);  in update_size()
285     avio_seek(pb, pos, SEEK_SET);  in update_size()
286     avio_wb32(pb, curpos - pos); /* rewrite size */  in update_size()
287     avio_seek(pb, curpos, SEEK_SET);  in update_size()
292 static int mov_cenc_write_senc_tag(MOVMuxCencContext* ctx, AVIOContext *pb,  in mov_cenc_write_senc_tag()  argument
295     int64_t pos = avio_tell(pb);  in mov_cenc_write_senc_tag()
297     avio_wb32(pb, 0); /* size */  in mov_cenc_write_senc_tag()
298     ffio_wfourcc(pb, "senc");  in mov_cenc_write_senc_tag()
299     avio_wb32(pb, ctx->use_subsamples ? 0x02 : 0); /* version & flags */  in mov_cenc_write_senc_tag()
300     avio_wb32(pb, ctx->auxiliary_info_entries); /* entry count */  in mov_cenc_write_senc_tag()
301     *auxiliary_info_offset = avio_tell(pb);  in mov_cenc_write_senc_tag()
302     avio_write(pb, ctx->auxiliary_info, ctx->auxiliary_info_size);  in mov_cenc_write_senc_tag()
303     return update_size(pb, pos);  in mov_cenc_write_senc_tag()
306 static int mov_cenc_write_saio_tag(AVIOContext *pb, int64_t auxiliary_info_offset)  in mov_cenc_write_saio_tag()  argument
308     int64_t pos = avio_tell(pb);  in mov_cenc_write_saio_tag()
311     avio_wb32(pb, 0); /* size */  in mov_cenc_write_saio_tag()
312     ffio_wfourcc(pb, "saio");  in mov_cenc_write_saio_tag()
314     avio_w8(pb, version);  in mov_cenc_write_saio_tag()
315     avio_wb24(pb, 0); /* flags */  in mov_cenc_write_saio_tag()
316     avio_wb32(pb, 1); /* entry count */  in mov_cenc_write_saio_tag()
318         avio_wb64(pb, auxiliary_info_offset);  in mov_cenc_write_saio_tag()
320         avio_wb32(pb, auxiliary_info_offset);  in mov_cenc_write_saio_tag()
322     return update_size(pb, pos);  in mov_cenc_write_saio_tag()
325 static int mov_cenc_write_saiz_tag(MOVMuxCencContext* ctx, AVIOContext *pb)  in mov_cenc_write_saiz_tag()  argument
327     int64_t pos = avio_tell(pb);  in mov_cenc_write_saiz_tag()
328     avio_wb32(pb, 0); /* size */  in mov_cenc_write_saiz_tag()
329     ffio_wfourcc(pb, "saiz");  in mov_cenc_write_saiz_tag()
330     avio_wb32(pb, 0); /* version & flags */  in mov_cenc_write_saiz_tag()
331     avio_w8(pb, ctx->use_subsamples ? 0 : AES_CTR_IV_SIZE);    /* default size*/  in mov_cenc_write_saiz_tag()
332     avio_wb32(pb, ctx->auxiliary_info_entries); /* entry count */  in mov_cenc_write_saiz_tag()
334         avio_write(pb, ctx->auxiliary_info_sizes, ctx->auxiliary_info_entries);  in mov_cenc_write_saiz_tag()
336     return update_size(pb, pos);  in mov_cenc_write_saiz_tag()
339 void ff_mov_cenc_write_stbl_atoms(MOVMuxCencContext* ctx, AVIOContext *pb)  in ff_mov_cenc_write_stbl_atoms()  argument
343     mov_cenc_write_senc_tag(ctx, pb, &auxiliary_info_offset);  in ff_mov_cenc_write_stbl_atoms()
344     mov_cenc_write_saio_tag(pb, auxiliary_info_offset);  in ff_mov_cenc_write_stbl_atoms()
345     mov_cenc_write_saiz_tag(ctx, pb);  in ff_mov_cenc_write_stbl_atoms()
348 static int mov_cenc_write_schi_tag(AVIOContext *pb, uint8_t* kid)  in mov_cenc_write_schi_tag()  argument
350     int64_t pos = avio_tell(pb);  in mov_cenc_write_schi_tag()
351     avio_wb32(pb, 0);     /* size */  in mov_cenc_write_schi_tag()
352     ffio_wfourcc(pb, "schi");  in mov_cenc_write_schi_tag()
354     avio_wb32(pb, 32);    /* size */  in mov_cenc_write_schi_tag()
355     ffio_wfourcc(pb, "tenc");  in mov_cenc_write_schi_tag()
356     avio_wb32(pb, 0);     /* version & flags */  in mov_cenc_write_schi_tag()
357     avio_wb24(pb, 1);     /* is encrypted */  in mov_cenc_write_schi_tag()
358     avio_w8(pb, AES_CTR_IV_SIZE); /* iv size */  in mov_cenc_write_schi_tag()
359     avio_write(pb, kid, CENC_KID_SIZE);  in mov_cenc_write_schi_tag()
361     return update_size(pb, pos);  in mov_cenc_write_schi_tag()
364 int ff_mov_cenc_write_sinf_tag(MOVTrack* track, AVIOContext *pb, uint8_t* kid)  in ff_mov_cenc_write_sinf_tag()  argument
366     int64_t pos = avio_tell(pb);  in ff_mov_cenc_write_sinf_tag()
367     avio_wb32(pb, 0); /* size */  in ff_mov_cenc_write_sinf_tag()
368     ffio_wfourcc(pb, "sinf");  in ff_mov_cenc_write_sinf_tag()
371     avio_wb32(pb, 12);    /* size */  in ff_mov_cenc_write_sinf_tag()
372     ffio_wfourcc(pb, "frma");  in ff_mov_cenc_write_sinf_tag()
373     avio_wl32(pb, track->tag);  in ff_mov_cenc_write_sinf_tag()
376     avio_wb32(pb, 20);    /* size */  in ff_mov_cenc_write_sinf_tag()
377     ffio_wfourcc(pb, "schm");  in ff_mov_cenc_write_sinf_tag()
378     avio_wb32(pb, 0); /* version & flags */  in ff_mov_cenc_write_sinf_tag()
379     ffio_wfourcc(pb, "cenc");    /* scheme type*/  in ff_mov_cenc_write_sinf_tag()
380     avio_wb32(pb, 0x10000); /* scheme version */  in ff_mov_cenc_write_sinf_tag()
383     mov_cenc_write_schi_tag(pb, kid);  in ff_mov_cenc_write_sinf_tag()
385     return update_size(pb, pos);  in ff_mov_cenc_write_sinf_tag()