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SAT>IP Server: improve PID handling (using new fcn set)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| /* | ||
| * MPEGTS PID list management | ||
| * Copyright (C) 2015 Jaroslav Kysela | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program 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 General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| #include "tvheadend.h" | ||
| #include "input.h" | ||
|
|
||
| int | ||
| mpegts_pid_init(mpegts_apids_t *pids, mpegts_apid_t *vals, int count) | ||
| { | ||
| int alloc = count + 32; | ||
| mpegts_apid_t *p = calloc(alloc, sizeof(*pids)); | ||
|
|
||
| if (p == NULL) | ||
| return -1; | ||
| pids->pids = p; | ||
| pids->alloc = alloc; | ||
| pids->all = 0; | ||
| if (vals) { | ||
| memcpy(p, vals, count * sizeof(*pids)); | ||
| pids->count = count; | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| void | ||
| mpegts_pid_done(mpegts_apids_t *pids) | ||
| { | ||
| free(pids->pids); | ||
| pids->pids = NULL; | ||
| pids->alloc = pids->count = 0; | ||
| } | ||
|
|
||
| void | ||
| mpegts_pid_reset(mpegts_apids_t *pids) | ||
| { | ||
| pids->alloc = pids->count = 0; | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_add(mpegts_apids_t *pids, mpegts_apid_t pid) | ||
| { | ||
| mpegts_apid_t *p; | ||
| int i; | ||
|
|
||
| assert(pids); | ||
| assert(pid >= 0 && pid <= 8191); | ||
| if (pids->alloc == pids->count) { | ||
| i = pids->alloc + 32; | ||
| p = realloc(pids->pids, i * sizeof(*p)); | ||
| if (p == NULL) | ||
| return -1; | ||
| pids->pids = p; | ||
| pids->alloc = i; | ||
| } | ||
| p = pids->pids; | ||
| for (i = pids->count++; i > 0 && p[i - 1] > pid; i--) | ||
| p[i] = p[i - 1]; | ||
| p[i] = pid; | ||
| return 0; | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_add_group(mpegts_apids_t *pids, mpegts_apids_t *vals) | ||
| { | ||
| int i, r; | ||
|
|
||
| for (i = 0; i < vals->count; i++) { | ||
| r = mpegts_pid_add(pids, vals->pids[i]); | ||
| if (r) | ||
| return r; | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_find_index(mpegts_apids_t *pids, mpegts_apid_t pid) | ||
| { | ||
| mpegts_apid_t *p = pids->pids; | ||
| int first = 0, last = pids->count - 1, i; | ||
| for (i = last / 2; first <= last; i = (first + last) / 2) { | ||
| if (p[i] < pid) | ||
| first = i + 1; | ||
| else if (p[i] == pid) | ||
| return i; | ||
| else | ||
| last = i - 1; | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_del(mpegts_apids_t *pids, mpegts_apid_t pid) | ||
| { | ||
| int i; | ||
|
|
||
| assert(pids); | ||
| assert(pid >= 0 && pid <= 8191); | ||
| if ((i = mpegts_pid_find_index(pids, pid)) >= 0) { | ||
| memmove(&pids->pids[i], &pids->pids[i+1], | ||
| (pids->count - i - 1) * sizeof(mpegts_apid_t)); | ||
| pids->count--; | ||
| return 0; | ||
| } else { | ||
| return -1; | ||
| } | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_del_group(mpegts_apids_t *pids, mpegts_apids_t *vals) | ||
| { | ||
| int i, r; | ||
|
|
||
| for (i = 0; i < vals->count; i++) { | ||
| r = mpegts_pid_del(pids, vals->pids[i]); | ||
| if (r) | ||
| return r; | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_copy(mpegts_apids_t *dst, mpegts_apids_t *src) | ||
| { | ||
| mpegts_apid_t *p; | ||
| int i; | ||
|
|
||
| if (dst->alloc < src->alloc) { | ||
| i = src->alloc; | ||
| p = realloc(dst->pids, i * sizeof(*p)); | ||
| if (p == NULL) | ||
| return -1; | ||
| dst->pids = p; | ||
| dst->alloc = i; | ||
| } | ||
| dst->count = src->count; | ||
| dst->all = src->all; | ||
| memcpy(dst->pids, src->pids, src->count * sizeof(mpegts_apid_t)); | ||
| return 0; | ||
| } | ||
|
|
||
| int | ||
| mpegts_pid_compare(mpegts_apids_t *dst, mpegts_apids_t *src, | ||
| mpegts_apids_t *add, mpegts_apids_t *del) | ||
| { | ||
| int i; | ||
|
|
||
| if (mpegts_pid_init(add, NULL, 0) || | ||
| mpegts_pid_init(del, NULL, 0)) | ||
| return -1; | ||
| for (i = 0; i < src->count; i++) | ||
| if (mpegts_pid_find_index(dst, src->pids[i]) < 0) | ||
| mpegts_pid_add(del, src->pids[i]); | ||
| for (i = 0; i < dst->count; i++) | ||
| if (mpegts_pid_find_index(src, dst->pids[i]) < 0) | ||
| mpegts_pid_add(add, dst->pids[i]); | ||
| return add->count || del->count; | ||
| } |
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