avformat/aviobuf: End grace period of allowing 0 from read_packet

[ffmpeg] / libavformat / isom.h

diff --git a/libavformat/isom.h b/libavformat/isom.h
index 4da34142f06697d26b78c06784a6fbedd8d12051..5a6d504090741c22c4be3d88d4c3490676c9c8ef 100644 (file)
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -27,6 +27,7 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include "libavutil/encryption_info.h"
 #include "libavutil/mastering_display_metadata.h"
 #include "libavutil/spherical.h"
 #include "libavutil/stereo3d.h"
@@ -40,6 +41,7 @@ extern const AVCodecTag ff_mp4_obj_type[];
 extern const AVCodecTag ff_codec_movvideo_tags[];
 extern const AVCodecTag ff_codec_movaudio_tags[];
 extern const AVCodecTag ff_codec_movsubtitle_tags[];
+extern const AVCodecTag ff_codec_movdata_tags[];
 
 int ff_mov_iso639_to_lang(const char lang[4], int mp4);
 int ff_mov_lang_to_iso639(unsigned code, char to[4]);
@@ -85,6 +87,7 @@ typedef struct MOVAtom {
 struct MOVParseTableEntry;
 
 typedef struct MOVFragment {
+    int found_tfhd;
     unsigned track_id;
     uint64_t base_data_offset;
     uint64_t moof_offset;
@@ -108,12 +111,27 @@ typedef struct MOVSbgp {
     unsigned int index;
 } MOVSbgp;
 
+typedef struct MOVEncryptionIndex {
+    // Individual encrypted samples.  If there are no elements, then the default
+    // settings will be used.
+    unsigned int nb_encrypted_samples;
+    AVEncryptionInfo **encrypted_samples;
+
+    uint8_t* auxiliary_info_sizes;
+    size_t auxiliary_info_sample_count;
+    uint8_t auxiliary_info_default_size;
+    uint64_t* auxiliary_offsets;  ///< Absolute seek position
+    size_t auxiliary_offsets_count;
+} MOVEncryptionIndex;
+
 typedef struct MOVFragmentStreamInfo {
     int id;
     int64_t sidx_pts;
     int64_t first_tfra_pts;
     int64_t tfdt_dts;
+    int64_t next_trun_dts;
     int index_entry;
+    MOVEncryptionIndex *encryption_index;
 } MOVFragmentStreamInfo;
 
 typedef struct MOVFragmentIndexItem {
@@ -146,6 +164,8 @@ typedef struct MOVStreamContext {
     int64_t *chunk_offsets;
     unsigned int stts_count;
     MOVStts *stts_data;
+    unsigned int sdtp_count;
+    uint8_t *sdtp_data;
     unsigned int ctts_count;
     unsigned int ctts_allocated_size;
     MOVStts *ctts_data;
@@ -202,6 +222,7 @@ typedef struct MOVStreamContext {
     int *extradata_size;
     int last_stsd_index;
     int stsd_count;
+    int stsd_version;
 
     int32_t *display_matrix;
     AVStereo3D *stereo3d;
@@ -215,15 +236,10 @@ typedef struct MOVStreamContext {
 
     int has_sidx;  // If there is an sidx entry for this stream.
     struct {
-        int use_subsamples;
-        uint8_t* auxiliary_info;
-        uint8_t* auxiliary_info_end;
-        uint8_t* auxiliary_info_pos;
-        uint8_t auxiliary_info_default_size;
-        uint8_t* auxiliary_info_sizes;
-        size_t auxiliary_info_sizes_count;
-        int64_t auxiliary_info_index;
         struct AVAESCTR* aes_ctr;
+        unsigned int per_sample_iv_size;  // Either 0, 8, or 16.
+        AVEncryptionInfo *default_encrypted_sample;
+        MOVEncryptionIndex *encryption_index;
     } cenc;
 } MOVStreamContext;
 
@@ -270,11 +286,17 @@ typedef struct MOVContext {
     int activation_bytes_size;
     void *audible_fixed_key;
     int audible_fixed_key_size;
+    void *audible_key;
+    int audible_key_size;
+    void *audible_iv;
+    int audible_iv_size;
     struct AVAES *aes_decrypt;
     uint8_t *decryption_key;
     int decryption_key_len;
     int enable_drefs;
     int32_t movie_display_matrix[3][3]; ///< display matrix from mvhd
+    int have_read_mfra_size;
+    uint32_t mfra_size;
 } MOVContext;
 
 int ff_mp4_read_descr_len(AVIOContext *pb);