44 #define BINK_EXTRADATA_SIZE 1 45 #define BINK_MAX_AUDIO_TRACKS 256 46 #define BINK_MAX_WIDTH 7680 47 #define BINK_MAX_HEIGHT 4800 48 #define SMUSH_BLOCK_SIZE 512 69 if (((b[0] ==
'B' && b[1] ==
'I' && b[2] ==
'K' &&
70 (b[3] ==
'b' || b[3] ==
'f' || b[3] ==
'g' || b[3] ==
'h' || b[3] ==
'i' ||
72 (b[0] ==
'K' && b[1] ==
'B' && b[2] ==
'2' &&
73 (b[3] ==
'a' || b[3] ==
'd' || b[3] ==
'f' || b[3] ==
'g' || b[3] ==
'h' ||
74 b[3] ==
'i' || b[3] ==
'j' || b[3] ==
'k'))) &&
81 }
while (smush && b < p->buf + p->
buf_size - 32);
89 uint32_t fps_num, fps_den;
92 uint32_t
pos, next_pos;
94 int next_keyframe = 1;
127 "invalid header: largest frame size greater than file size\n");
138 if (fps_num == 0 || fps_den == 0) {
140 "invalid header: invalid fps (%"PRIu32
"/%"PRIu32
")\n",
170 if ((signature ==
AV_RL32(
"BIK") && (revision ==
'k')) ||
171 (signature ==
AV_RL32(
"KB2") && (revision ==
'i' || revision ==
'j' || revision ==
'k')))
206 for (i = 0; i < vst->
duration; i++) {
208 keyframe = next_keyframe;
214 next_keyframe = next_pos & 1;
219 if (next_pos <= pos) {
252 if (index_entry < 0) {
254 "could not find index entry for frame %"PRId64
"\n",
268 "frame %"PRId64
": audio size in header (%"PRIu32
") > size of packet left (%"PRIu32
")\n",
274 if (audio_size >= 4) {
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
#define AV_LOG_WARNING
Something somehow does not look correct.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define AV_CH_LAYOUT_STEREO
uint32_t num_audio_tracks
static const char signature[]
int current_track
audio track to return in next packet
int id
Format-specific stream ID.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
AVStream ** streams
A list of all streams in the file.
#define AVERROR_EOF
End of file.
uint64_t channel_layout
Audio only.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags)
Get the index for a specific timestamp.
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
enum AVMediaType codec_type
General type of the encoded data.
AVRational avg_frame_rate
Average framerate.
int flags
A combination of AV_PKT_FLAG values.
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
audio channel layout utility functions
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
AVStreamInternal * internal
An opaque field for libavformat internal usage.
AVIOContext * pb
I/O context.
This structure contains the data a format has to probe a file.
int64_t audio_pts[BINK_MAX_AUDIO_TRACKS]
int64_t duration
Decoding: duration of the stream, in stream time base.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
int sample_rate
Audio only.
unsigned int avio_rl16(AVIOContext *s)
uint32_t remain_packet_size
void * priv_data
Format private data.
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
#define AV_CH_LAYOUT_MONO
#define MKTAG(a, b, c, d)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...