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🎥 Command line media player
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#include <libavutil/common.h>
#include "stream.h"
struct priv { bstr data;};
static int fill_buffer(stream_t *s, char* buffer, int len){ struct priv *p = s->priv; bstr data = p->data; if (s->pos < 0 || s->pos > data.len) return 0; len = FFMIN(len, data.len - s->pos); memcpy(buffer, data.start + s->pos, len); return len;}
static int seek(stream_t *s, int64_t newpos){ return 1;}
static int control(stream_t *s, int cmd, void *arg){ struct priv *p = s->priv; switch(cmd) { case STREAM_CTRL_GET_SIZE: *(int64_t *)arg = p->data.len; return 1; case STREAM_CTRL_SET_CONTENTS: ; bstr *data = (bstr *)arg; talloc_free(p->data.start); p->data = bstrdup(s, *data); return 1; } return STREAM_UNSUPPORTED;}
static int open_f(stream_t *stream){ stream->fill_buffer = fill_buffer; stream->seek = seek; stream->seekable = true; stream->control = control; stream->read_chunk = 1024 * 1024; stream->allow_caching = false;
struct priv *p = talloc_zero(stream, struct priv); stream->priv = p;
// Initial data bstr data = bstr0(stream->url); bool use_hex = bstr_eatstart0(&data, "hex://"); if (!use_hex) bstr_eatstart0(&data, "memory://"); stream_control(stream, STREAM_CTRL_SET_CONTENTS, &data);
if (use_hex && !bstr_decode_hex(stream, p->data, &p->data)) { MP_FATAL(stream, "Invalid data.\n"); return STREAM_ERROR; }
return STREAM_OK;}
const stream_info_t stream_info_memory = { .name = "memory", .open = open_f, .protocols = (const char*const[]){ "memory", "hex", NULL },};