virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-10-30 23:18:11 +02:00
Code Issues Releases Activity

avfilter/f_reverse: add packed sample format support to areverse

Browse Source
This commit is contained in:
Paul B Mahol
2018-10-08 13:33:22 +02:00
parent 3cbf37bf09
commit e10fe34e7c
1 changed files with 87 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

124
libavfilter/f_reverse.c
View File

@@ -154,7 +154,7 @@ static int query_formats(AVFilterContext *ctx)
if (ret < 0)
return ret;
ret = ff_set_common_formats(ctx, ff_planar_sample_fmts());
ret = ff_set_common_formats(ctx, ff_all_formats(AVMEDIA_TYPE_AUDIO));
if (ret < 0)
return ret;
@@ -164,11 +164,92 @@ static int query_formats(AVFilterContext *ctx)
return ff_set_common_samplerates(ctx, formats);
}
static void reverse_samples_planar(AVFrame *out)
{
for (int p = 0; p < out->channels; p++) {
switch (out->format) {
case AV_SAMPLE_FMT_U8P: {
uint8_t *dst = (uint8_t *)out->extended_data[p];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(uint8_t, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_S16P: {
int16_t *dst = (int16_t *)out->extended_data[p];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(int16_t, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_S32P: {
int32_t *dst = (int32_t *)out->extended_data[p];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(int32_t, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_FLTP: {
float *dst = (float *)out->extended_data[p];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(float, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_DBLP: {
double *dst = (double *)out->extended_data[p];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(double, dst[i], dst[j]);
}
break;
}
}
}
static void reverse_samples_packed(AVFrame *out)
{
const int channels = out->channels;
switch (out->format) {
case AV_SAMPLE_FMT_U8: {
uint8_t *dst = (uint8_t *)out->extended_data[0];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
for (int p = 0; p < channels; p++)
FFSWAP(uint8_t, dst[i * channels + p], dst[j * channels + p]);
}
break;
case AV_SAMPLE_FMT_S16: {
int16_t *dst = (int16_t *)out->extended_data[0];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
for (int p = 0; p < channels; p++)
FFSWAP(int16_t, dst[i * channels + p], dst[j * channels + p]);
}
break;
case AV_SAMPLE_FMT_S32: {
int32_t *dst = (int32_t *)out->extended_data[0];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
for (int p = 0; p < channels; p++)
FFSWAP(int32_t, dst[i * channels + p], dst[j * channels + p]);
}
break;
case AV_SAMPLE_FMT_FLT: {
float *dst = (float *)out->extended_data[0];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
for (int p = 0; p < channels; p++)
FFSWAP(float, dst[i * channels + p], dst[j * channels + p]);
}
break;
case AV_SAMPLE_FMT_DBL: {
double *dst = (double *)out->extended_data[0];
for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
for (int p = 0; p < channels; p++)
FFSWAP(double, dst[i * channels + p], dst[j * channels + p]);
}
break;
}
}
static int areverse_request_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
ReverseContext *s = ctx->priv;
int ret, p, i, j;
int ret;
ret = ff_request_frame(ctx->inputs[0]);
@@ -176,41 +257,10 @@ static int areverse_request_frame(AVFilterLink *outlink)
AVFrame *out = s->frames[s->nb_frames - 1];
out->pts = s->pts[s->flush_idx++];
for (p = 0; p < outlink->channels; p++) {
switch (outlink->format) {
case AV_SAMPLE_FMT_U8P: {
uint8_t *dst = (uint8_t *)out->extended_data[p];
for (i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(uint8_t, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_S16P: {
int16_t *dst = (int16_t *)out->extended_data[p];
for (i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(int16_t, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_S32P: {
int32_t *dst = (int32_t *)out->extended_data[p];
for (i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(int32_t, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_FLTP: {
float *dst = (float *)out->extended_data[p];
for (i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(float, dst[i], dst[j]);
}
break;
case AV_SAMPLE_FMT_DBLP: {
double *dst = (double *)out->extended_data[p];
for (i = 0, j = out->nb_samples - 1; i < j; i++, j--)
FFSWAP(double, dst[i], dst[j]);
}
break;
}
}
if (av_sample_fmt_is_planar(out->format))
reverse_samples_planar(out);
else
reverse_samples_packed(out);
ret = ff_filter_frame(outlink, out);
s->nb_frames--;
}