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Merge remote-tracking branch 'qatar/master'

* qatar/master: (26 commits) fate: use diff -b in oneline comparison Add missing version bumps and APIchanges/Changelog entries. lavfi: move buffer management function to a separate file. lavfi: move formats-related functions from default.c to formats.c lavfi: move video-related functions to a separate file. fate: make smjpeg a demux test fate: separate sierra-vmd audio and video tests fate: separate smacker audio and video tests libmp3lame: set supported channel layouts. avconv: automatically insert asyncts when -async is used. avconv: add support for audio filters. lavfi: add asyncts filter. lavfi: add aformat filter lavfi: add an audio buffer sink. lavfi: add an audio buffer source. buffersrc: add av_buffersrc_write_frame(). buffersrc: fix invalid read in uninit if the fifo hasn't been allocated lavfi: rename vsrc_buffer.c to buffersrc.c avfiltergraph: reindent lavfi: add channel layout/sample rate negotiation. ... Conflicts: Changelog doc/APIchanges doc/filters.texi ffmpeg.c ffprobe.c libavcodec/libmp3lame.c libavfilter/Makefile libavfilter/af_aformat.c libavfilter/allfilters.c libavfilter/avfilter.c libavfilter/avfilter.h libavfilter/avfiltergraph.c libavfilter/buffersrc.c libavfilter/defaults.c libavfilter/formats.c libavfilter/src_buffer.c libavfilter/version.h libavfilter/vf_yadif.c libavfilter/vsrc_buffer.c libavfilter/vsrc_buffer.h libavutil/avutil.h tests/fate/audio.mak tests/fate/demux.mak tests/fate/video.mak

Michael Niedermayer committed 14 years ago

Commit 1cbf7fb2 parents a48abf5 0ff0af752 files · +3304 −1706Browse files

Showing the changes to libavfilter/buffer.c (1 of 52 files). Show all

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libavfilter/buffer.c+244−0
@@ -0,0 +1,244 @@
1+/*
2+ * This file is part of FFmpeg.
3+ *
4+ * FFmpeg is free software; you can redistribute it and/or
5+ * modify it under the terms of the GNU Lesser General Public
6+ * License as published by the Free Software Foundation; either
7+ * version 2.1 of the License, or (at your option) any later version.
8+ *
9+ * FFmpeg is distributed in the hope that it will be useful,
10+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
11+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12+ * Lesser General Public License for more details.
13+ *
14+ * You should have received a copy of the GNU Lesser General Public
15+ * License along with FFmpeg; if not, write to the Free Software
16+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17+ */
18+
19+#include "libavutil/audioconvert.h"
20+#include "libavutil/avassert.h"
21+#include "libavcodec/avcodec.h"
22+
23+#include "avfilter.h"
24+#include "internal.h"
25+#include "avcodec.h"
26+
27+void ff_avfilter_default_free_buffer(AVFilterBuffer *ptr)
28+{
29+ if (ptr->extended_data != ptr->data)
30+ av_freep(&ptr->extended_data);
31+ av_free(ptr->data[0]);
32+ av_free(ptr);
33+}
34+
35+AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask)
36+{
37+ AVFilterBufferRef *ret = av_malloc(sizeof(AVFilterBufferRef));
38+ if (!ret)
39+ return NULL;
40+ *ret = *ref;
41+ if (ref->type == AVMEDIA_TYPE_VIDEO) {
42+ ret->video = av_malloc(sizeof(AVFilterBufferRefVideoProps));
43+ if (!ret->video) {
44+ av_free(ret);
45+ return NULL;
46+ }
47+ *ret->video = *ref->video;
48+ ret->extended_data = ret->data;
49+ } else if (ref->type == AVMEDIA_TYPE_AUDIO) {
50+ ret->audio = av_malloc(sizeof(AVFilterBufferRefAudioProps));
51+ if (!ret->audio) {
52+ av_free(ret);
53+ return NULL;
54+ }
55+ *ret->audio = *ref->audio;
56+
57+ if (ref->extended_data && ref->extended_data != ref->data) {
58+ int nb_channels = av_get_channel_layout_nb_channels(ref->audio->channel_layout);
59+ if (!(ret->extended_data = av_malloc(sizeof(*ret->extended_data) *
60+ nb_channels))) {
61+ av_freep(&ret->audio);
62+ av_freep(&ret);
63+ return NULL;
64+ }
65+ memcpy(ret->extended_data, ref->extended_data,
66+ sizeof(*ret->extended_data) * nb_channels);
67+ } else
68+ ret->extended_data = ret->data;
69+ }
70+ ret->perms &= pmask;
71+ ret->buf->refcount ++;
72+ return ret;
73+}
74+
75+void ff_free_pool(AVFilterPool *pool)
76+{
77+ int i;
78+
79+ av_assert0(pool->refcount > 0);
80+
81+ for (i = 0; i < POOL_SIZE; i++) {
82+ if (pool->pic[i]) {
83+ AVFilterBufferRef *picref = pool->pic[i];
84+ /* free buffer: picrefs stored in the pool are not
85+ * supposed to contain a free callback */
86+ av_assert0(!picref->buf->refcount);
87+ av_freep(&picref->buf->data[0]);
88+ av_freep(&picref->buf);
89+
90+ av_freep(&picref->audio);
91+ av_freep(&picref->video);
92+ av_freep(&pool->pic[i]);
93+ pool->count--;
94+ }
95+ }
96+ pool->draining = 1;
97+
98+ if (!--pool->refcount) {
99+ av_assert0(!pool->count);
100+ av_free(pool);
101+ }
102+}
103+
104+static void store_in_pool(AVFilterBufferRef *ref)
105+{
106+ int i;
107+ AVFilterPool *pool= ref->buf->priv;
108+
109+ av_assert0(ref->buf->data[0]);
110+ av_assert0(pool->refcount>0);
111+
112+ if (pool->count == POOL_SIZE) {
113+ AVFilterBufferRef *ref1 = pool->pic[0];
114+ av_freep(&ref1->video);
115+ av_freep(&ref1->audio);
116+ av_freep(&ref1->buf->data[0]);
117+ av_freep(&ref1->buf);
118+ av_free(ref1);
119+ memmove(&pool->pic[0], &pool->pic[1], sizeof(void*)*(POOL_SIZE-1));
120+ pool->count--;
121+ pool->pic[POOL_SIZE-1] = NULL;
122+ }
123+
124+ for (i = 0; i < POOL_SIZE; i++) {
125+ if (!pool->pic[i]) {
126+ pool->pic[i] = ref;
127+ pool->count++;
128+ break;
129+ }
130+ }
131+ if (pool->draining) {
132+ ff_free_pool(pool);
133+ } else
134+ --pool->refcount;
135+}
136+
137+void avfilter_unref_buffer(AVFilterBufferRef *ref)
138+{
139+ if (!ref)
140+ return;
141+ av_assert0(ref->buf->refcount > 0);
142+ if (!(--ref->buf->refcount)) {
143+ if (!ref->buf->free) {
144+ store_in_pool(ref);
145+ return;
146+ }
147+ ref->buf->free(ref->buf);
148+ }
149+ if (ref->extended_data != ref->data)
150+ av_freep(&ref->extended_data);
151+ av_freep(&ref->video);
152+ av_freep(&ref->audio);
153+ av_free(ref);
154+}
155+
156+void avfilter_unref_bufferp(AVFilterBufferRef **ref)
157+{
158+ avfilter_unref_buffer(*ref);
159+ *ref = NULL;
160+}
161+
162+int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src)
163+{
164+ dst->pts = src->pts;
165+ dst->pos = src->pkt_pos;
166+ dst->format = src->format;
167+
168+ switch (dst->type) {
169+ case AVMEDIA_TYPE_VIDEO:
170+ dst->video->w = src->width;
171+ dst->video->h = src->height;
172+ dst->video->sample_aspect_ratio = src->sample_aspect_ratio;
173+ dst->video->interlaced = src->interlaced_frame;
174+ dst->video->top_field_first = src->top_field_first;
175+ dst->video->key_frame = src->key_frame;
176+ dst->video->pict_type = src->pict_type;
177+ break;
178+ case AVMEDIA_TYPE_AUDIO:
179+ dst->audio->sample_rate = src->sample_rate;
180+ dst->audio->channel_layout = src->channel_layout;
181+ break;
182+ default:
183+ return AVERROR(EINVAL);
184+ }
185+
186+ return 0;
187+}
188+
189+int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src)
190+{
191+ int planes, nb_channels;
192+
193+ memcpy(dst->data, src->data, sizeof(dst->data));
194+ memcpy(dst->linesize, src->linesize, sizeof(dst->linesize));
195+
196+ dst->pts = src->pts;
197+ dst->format = src->format;
198+
199+ switch (src->type) {
200+ case AVMEDIA_TYPE_VIDEO:
201+ dst->width = src->video->w;
202+ dst->height = src->video->h;
203+ dst->sample_aspect_ratio = src->video->sample_aspect_ratio;
204+ dst->interlaced_frame = src->video->interlaced;
205+ dst->top_field_first = src->video->top_field_first;
206+ dst->key_frame = src->video->key_frame;
207+ dst->pict_type = src->video->pict_type;
208+ break;
209+ case AVMEDIA_TYPE_AUDIO:
210+ nb_channels = av_get_channel_layout_nb_channels(src->audio->channel_layout);
211+ planes = av_sample_fmt_is_planar(src->format) ? nb_channels : 1;
212+
213+ if (planes > FF_ARRAY_ELEMS(dst->data)) {
214+ dst->extended_data = av_mallocz(planes * sizeof(*dst->extended_data));
215+ if (!dst->extended_data)
216+ return AVERROR(ENOMEM);
217+ memcpy(dst->extended_data, src->extended_data,
218+ planes * sizeof(dst->extended_data));
219+ } else
220+ dst->extended_data = dst->data;
221+
222+ dst->sample_rate = src->audio->sample_rate;
223+ dst->channel_layout = src->audio->channel_layout;
224+ dst->nb_samples = src->audio->nb_samples;
225+ break;
226+ default:
227+ return AVERROR(EINVAL);
228+ }
229+
230+ return 0;
231+}
232+
233+void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *src)
234+{
235+ // copy common properties
236+ dst->pts = src->pts;
237+ dst->pos = src->pos;
238+
239+ switch (src->type) {
240+ case AVMEDIA_TYPE_VIDEO: *dst->video = *src->video; break;
241+ case AVMEDIA_TYPE_AUDIO: *dst->audio = *src->audio; break;
242+ default: break;
243+ }
244+}

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