#include "movenc.h"#include "libavutil/intreadwrite.h"Go to the source code of this file.
Functions | |
| int | ff_mov_init_hinting (AVFormatContext *s, int index, int src_index) |
| static void | sample_queue_pop (HintSampleQueue *queue) |
| Remove the first sample from the sample queue. | |
| static void | sample_queue_free (HintSampleQueue *queue) |
| Empty the sample queue, releasing all memory. | |
| static void | sample_queue_push (HintSampleQueue *queue, AVPacket *pkt, int sample) |
| Add a reference to the sample data to the sample queue. | |
| static void | sample_queue_retain (HintSampleQueue *queue) |
| Make local copies of all referenced sample data in the queue. | |
| static int | match_segments (const uint8_t *haystack, int h_len, const uint8_t *needle, int n_pos, int n_len, int *match_h_offset_ptr, int *match_n_offset_ptr, int *match_len_ptr) |
| Find matches of needle[n_pos ->] within haystack. | |
| static int | find_sample_match (const uint8_t *data, int len, HintSampleQueue *queue, int *pos, int *match_sample, int *match_offset, int *match_len) |
| Look for segments in samples in the sample queue matching the data in ptr. | |
| static void | output_immediate (const uint8_t *data, int size, ByteIOContext *out, int *entries) |
| static void | output_match (ByteIOContext *out, int match_sample, int match_offset, int match_len, int *entries) |
| static void | describe_payload (const uint8_t *data, int size, ByteIOContext *out, int *entries, HintSampleQueue *queue) |
| static int | write_hint_packets (ByteIOContext *out, const uint8_t *data, int size, MOVTrack *trk, int64_t *pts) |
| Write an RTP hint (that may contain one or more RTP packets) for the packets in data. | |
| int | ff_mov_add_hinted_packet (AVFormatContext *s, AVPacket *pkt, int track_index, int sample) |
| void | ff_mov_close_hinting (MOVTrack *track) |
| static void describe_payload | ( | const uint8_t * | data, | |
| int | size, | |||
| ByteIOContext * | out, | |||
| int * | entries, | |||
| HintSampleQueue * | queue | |||
| ) | [static] |
| int ff_mov_add_hinted_packet | ( | AVFormatContext * | s, | |
| AVPacket * | pkt, | |||
| int | track_index, | |||
| int | sample | |||
| ) |
| void ff_mov_close_hinting | ( | MOVTrack * | track | ) |
| int ff_mov_init_hinting | ( | AVFormatContext * | s, | |
| int | index, | |||
| int | src_index | |||
| ) |
| static int find_sample_match | ( | const uint8_t * | data, | |
| int | len, | |||
| HintSampleQueue * | queue, | |||
| int * | pos, | |||
| int * | match_sample, | |||
| int * | match_offset, | |||
| int * | match_len | |||
| ) | [static] |
Look for segments in samples in the sample queue matching the data in ptr.
Samples not matching are removed from the queue. If a match is found, the next time it will look for matches starting from the end of the previous matched segment.
| data | data to find matches for in the sample queue | |
| len | length of the data buffer | |
| queue | samples used for looking for matching segments | |
| pos | the offset in data of the matched segment | |
| match_sample | the number of the sample that contained the match | |
| match_offset | the offset of the matched segment within the sample | |
| match_len | the length of the matched segment |
Definition at line 248 of file movenchint.c.
Referenced by describe_payload().
| static int match_segments | ( | const uint8_t * | haystack, | |
| int | h_len, | |||
| const uint8_t * | needle, | |||
| int | n_pos, | |||
| int | n_len, | |||
| int * | match_h_offset_ptr, | |||
| int * | match_n_offset_ptr, | |||
| int * | match_len_ptr | |||
| ) | [static] |
Find matches of needle[n_pos ->] within haystack.
If a sufficiently large match is found, matching bytes before n_pos are included in the match, too (within the limits of the arrays).
| haystack | buffer that may contain parts of needle | |
| h_len | length of the haystack buffer | |
| needle | buffer containing source data that have been used to construct haystack | |
| n_pos | start position in needle used for looking for matches | |
| n_len | length of the needle buffer | |
| match_h_offset_ptr | offset of the first matching byte within haystack | |
| match_n_offset_ptr | offset of the first matching byte within needle | |
| match_len_ptr | length of the matched segment |
Definition at line 196 of file movenchint.c.
Referenced by find_sample_match().
| static void output_immediate | ( | const uint8_t * | data, | |
| int | size, | |||
| ByteIOContext * | out, | |||
| int * | entries | |||
| ) | [static] |
| static void output_match | ( | ByteIOContext * | out, | |
| int | match_sample, | |||
| int | match_offset, | |||
| int | match_len, | |||
| int * | entries | |||
| ) | [static] |
| static void sample_queue_free | ( | HintSampleQueue * | queue | ) | [static] |
Empty the sample queue, releasing all memory.
Definition at line 117 of file movenchint.c.
Referenced by ff_mov_close_hinting().
| static void sample_queue_pop | ( | HintSampleQueue * | queue | ) | [static] |
Remove the first sample from the sample queue.
Definition at line 104 of file movenchint.c.
Referenced by find_sample_match().
| static void sample_queue_push | ( | HintSampleQueue * | queue, | |
| AVPacket * | pkt, | |||
| int | sample | |||
| ) | [static] |
Add a reference to the sample data to the sample queue.
The data is not copied. sample_queue_retain should be called before pkt->data is reused/freed.
Definition at line 133 of file movenchint.c.
Referenced by ff_mov_add_hinted_packet().
| static void sample_queue_retain | ( | HintSampleQueue * | queue | ) | [static] |
Make local copies of all referenced sample data in the queue.
Definition at line 158 of file movenchint.c.
Referenced by ff_mov_add_hinted_packet().
| static int write_hint_packets | ( | ByteIOContext * | out, | |
| const uint8_t * | data, | |||
| int | size, | |||
| MOVTrack * | trk, | |||
| int64_t * | pts | |||
| ) | [static] |
Write an RTP hint (that may contain one or more RTP packets) for the packets in data.
data contains one or more packets with a BE32 size header.
| out | buffer where the hints are written | |
| data | buffer containing RTP packets | |
| size | the size of the data buffer | |
| trk | the MOVTrack for the hint track | |
| pts | pointer where the timestamp for the written RTP hint is stored |
Definition at line 348 of file movenchint.c.
Referenced by ff_mov_add_hinted_packet().
1.5.8